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Commit Graph

46063 Commits

Author SHA1 Message Date
Matthew Dempsky
396b6c2e7c [dev.regabi] cmd/compile: cleanup assignment typechecking
The assignment type-checking code previously bounced around a lot
between the LHS and RHS sides of the assignment. But there's actually
a very simple, consistent pattern to how to type check assignments:

1. Check the RHS expression.

2. If the LHS expression is an identifier that was declared in this
statement and it doesn't have an explicit type, give it the RHS
expression's default type.

3. Check the LHS expression.

4. Try assigning the RHS expression to the LHS expression, adding
implicit conversions as needed.

This CL implements this algorithm, and refactors tcAssign and
tcAssignList to use a common implementation. It also fixes the error
messages to consistently say just "1 variable" or "1 value", rather
than occasionally "1 variables" or "1 values".

Fixes #43348.

Passes toolstash -cmp.

Change-Id: I749cb8d6ccbc7d22cd7cb0a381f58a39fc2696b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/280112
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-25 09:18:20 +00:00
Cuong Manh Le
e24d2f3d05 [dev.regabi] cmd/compile: remove typ from RangeStmt
We can use RangeStmt.X.Type() instead.

Passes buildall w/ toolstash -cmp.

Change-Id: Id63ce9cb046c3b39bcc35453b1602c986794dfe1
Reviewed-on: https://go-review.googlesource.com/c/go/+/279437
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-25 05:18:05 +00:00
Matthew Dempsky
2785c691c2 [dev.regabi] cmd/compile: cleanup devirtualization docs
Change-Id: I8e319f55fad6e9ed857aa020a96f3a89ccaadcea
Reviewed-on: https://go-review.googlesource.com/c/go/+/280213
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-25 00:39:43 +00:00
Matthew Dempsky
4b1d0fe66f [dev.regabi] cmd/compile: new devirtualization pkg [generated]
The devirtualization code was only in inl.go because it reused some of
the same helper functions as inlining (notably staticValue), but that
code all ended up in package ir instead anyway. Beyond that minor
commonality, it's entirely separate from inlining.

It's definitely on the small side, but consistent with the new
micropass-as-a-package approach we're trying.

[git-generate]
cd src/cmd/compile/internal/inline
rf '
  mv Devirtualize Func
  mv devirtualizeCall Call
  mv Func Call devirtualize.go
  mv devirtualize.go cmd/compile/internal/devirtualize
'

Change-Id: Iff7b9fe486856660a8107d5391c54b7e8d238706
Reviewed-on: https://go-review.googlesource.com/c/go/+/280212
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-25 00:39:24 +00:00
Cuong Manh Le
082cc8b7d9 [dev.regabi] cmd/compile: change ir.IsAssignable -> ir.IsAddressable
ir.IsAssignable does not include map index expression, so it should be
named ir.IsAddressable instead.

[git-generate]

cd src/cmd/compile/internal/ir
rf '
  mv IsAssignable IsAddressable
'

Change-Id: Ief6188e7b784ba9592d7b0cbec33b5f70d78f638
Reviewed-on: https://go-review.googlesource.com/c/go/+/279436
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-24 16:56:19 +00:00
Cuong Manh Le
27b248b307 [dev.regabi] cmd/compile: separate range stmt Vars to Key, Value nodes
Passes buildall w/ toolstash -cmp.

Change-Id: I9738fcabc8ebf3afa34d102afadf1b474b50db35
Reviewed-on: https://go-review.googlesource.com/c/go/+/279435
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
2020-12-24 11:15:02 +00:00
Matthew Dempsky
40818038bf [dev.regabi] cmd/compile: change CaseStmt.Vars to Var
There's only ever one variable implicitly declared by a CaseStmt. It's
only a slice because we previous used Rlist for this.

Passes toolstash -cmp.

Change-Id: Idf747f3ec6dfbbe4e94d60546ba04a81754df3fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/280012
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 20:54:11 +00:00
Cuong Manh Le
9eeed291bc [dev.regabi] cmd/compile: eliminate usage of ir.Node in liveness
All function parameters and return values in liveness have explicit
*ir.Name type, so use it directly instead of casting from ir.Node. While
at it, rename "affectedNode" to "affectedVar" to reflect this change.

Passes buildall w/ toolstash -cmp.

Change-Id: Id927e817a92ddb551a029064a2a54e020ca27074
Reviewed-on: https://go-review.googlesource.com/c/go/+/279434
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 15:15:29 +00:00
Matthew Dempsky
d1d64e4cea [dev.regabi] cmd/compile: split SliceExpr.List into separate fields
Passes toolstash -cmp.

Change-Id: I4e31154d04d99f2b80bec6a2c571a2a4a3f2ec99
Reviewed-on: https://go-review.googlesource.com/c/go/+/279959
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
2020-12-23 14:38:23 +00:00
Matthew Dempsky
d19018e8f1 [dev.regabi] cmd/compile: split SliceHeaderExpr.LenCap into separate fields
Passes toolstash -cmp.

Change-Id: Ifc98a408c154a05997963e2c731466842ebbf50e
Reviewed-on: https://go-review.googlesource.com/c/go/+/279958
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 14:09:23 +00:00
Matthew Dempsky
53f082b0ee [dev.regabi] cmd/compile: cleanup export code further
This CL rips off a number of toolstash bandages:

- Fixes position information for string concatenation.

- Adds position information for struct literal fields.

- Removes unnecessary exprsOrNil calls or replaces them with plain
  expr calls when possible.

- Reorders conversion expressions to put type first, which matches
  source order and also the order the importer needs for calling the
  ConvExpr constructor.

Change-Id: I44cdc6035540d9ecefd9c1bcd92b8711d6ed813c
Reviewed-on: https://go-review.googlesource.com/c/go/+/279957
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 12:01:07 +00:00
Matthew Dempsky
31267f82e1 [dev.regabi] cmd/compile: simplify function/interface/struct typechecking
After the previous CL, the only callers to NewFuncType, tointerface,
or NewStructType are the functions for type-checking the type literal
ASTs. So just inline the code there.

While here, refactor the Field type-checking logic a little bit, to
reduce some duplication.

Passes toolstash -cmp.

Change-Id: Ie12d14b87ef8b6e528ac9dccd609604bd09b98ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/279956
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 11:59:32 +00:00
Matthew Dempsky
addade2cce [dev.regabi] cmd/compile: prefer types constructors over typecheck
Similar to the earlier mkbuiltin cleanup, there's a bunch of code that
calls typecheck.NewFuncType or typecheck.NewStructType, which can now
just call types.NewSignature and types.NewStruct, respectively.

Passes toolstash -cmp.

Change-Id: Ie6e09f1a7efef84b9a2bb5daa7087a6879979668
Reviewed-on: https://go-review.googlesource.com/c/go/+/279955
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 11:59:23 +00:00
Matthew Dempsky
18ebfb49e9 [dev.regabi] cmd/compile: cleanup noder
Similar to previous CL: take advantage of better constructor APIs for
translating ASTs from syntax to ir.

Passes toolstash -cmp.

Change-Id: I40970775e7dd5afe2a0b7593ce3bd73237562457
Reviewed-on: https://go-review.googlesource.com/c/go/+/279972
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 10:46:45 +00:00
Matthew Dempsky
87a592b356 [dev.regabi] cmd/compile: cleanup import/export code
Now that we have concrete AST node types and better constructor APIs,
we can more cleanup a lot of the import code and some export code too.

Passes toolstash -cmp.

Change-Id: Ie3425d9dac11ac4245e5da675dd298984a926df4
Reviewed-on: https://go-review.googlesource.com/c/go/+/279954
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 10:29:05 +00:00
Matthew Dempsky
5898025026 [dev.regabi] cmd/compile: update mkbuiltin.go to use new type constructors
We recently added new functions to types like NewSignature and
NewField, so we can use these directly rather than depending on the
typecheck and ir wrappers.

Passes toolstash -cmp.

Change-Id: I32676aa9a4ea71892216017756e72bcf90297219
Reviewed-on: https://go-review.googlesource.com/c/go/+/279953
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 09:51:23 +00:00
Matthew Dempsky
63c96c2ee7 [dev.regabi] cmd/compile: update mkbuiltin.go and re-enable TestBuiltin
Update's mkbuiltin.go to match builtin.go after the recent rf
rewrites.

Change-Id: I80cf5d7c27b36fe28553406819cb4263de84e5ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/279952
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2020-12-23 09:51:13 +00:00
Russ Cox
37f138df6b [dev.regabi] cmd/compile: split out package test [generated]
[git-generate]
cd src/cmd/compile/internal/gc
rf '
	mv bench_test.go constFold_test.go dep_test.go \
		fixedbugs_test.go iface_test.go float_test.go global_test.go \
		inl_test.go lang_test.go logic_test.go \
		reproduciblebuilds_test.go shift_test.go ssa_test.go \
		truncconst_test.go zerorange_test.go \
		cmd/compile/internal/test
'
mv testdata ../test

Change-Id: I041971b7e9766673f7a331679bfe1c8110dcda66
Reviewed-on: https://go-review.googlesource.com/c/go/+/279480
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:40:04 +00:00
Russ Cox
3d8a3cb06b [dev.regabi] cmd/compile: split out package pkginit [generated]
[git-generate]
cd src/cmd/compile/internal/gc
rf '
	mv fninit Task
	mv init.go initorder.go cmd/compile/internal/pkginit
'

Change-Id: Ie2a924784c7a6fa029eaef821384eef4b262e1af
Reviewed-on: https://go-review.googlesource.com/c/go/+/279479
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:57 +00:00
Russ Cox
3f04d964ab [dev.regabi] cmd/compile: split up walkexpr1, walkstmt [generated]
walkexpr1 is the second largest non-machine-generated function in the compiler.
weighing in at 1,164 lines. Since we are destroying the git blame history
anyway, now is a good time to split each different case into its own function,
making future work on this function more manageable.
Do the same to walkstmt too for consistency, even though it is a paltry 259 lines.

[git-generate]
cd src/cmd/compile/internal/walk
rf '
	mv addstr walkAddString
	mv walkCall walkCall1
	mv walkpartialcall walkCallPart
	mv walkclosure walkClosure
	mv walkrange walkRange
	mv walkselect walkSelect
	mv walkselectcases walkSelectCases
	mv walkswitch walkSwitch
	mv walkExprSwitch walkSwitchExpr
	mv walkTypeSwitch walkSwitchType
	mv walkstmt walkStmt
	mv walkstmtlist walkStmtList
	mv walkexprlist walkExprList
	mv walkexprlistsafe walkExprListSafe
	mv walkexprlistcheap walkExprListCheap
	mv walkexpr walkExpr
	mv walkexpr1 walkExpr1
	mv walkprint walkPrint
	mv walkappend walkAppend
	mv walkcompare walkCompare
	mv walkcompareInterface walkCompareInterface
	mv walkcompareString walkCompareString

	mv appendslice appendSlice
	mv cheapexpr cheapExpr
	mv copyany walkCopy
	mv copyexpr copyExpr
	mv eqfor eqFor
	mv extendslice extendSlice
	mv finishcompare finishCompare
	mv safeexpr safeExpr

	mv walkStmt:/^\tcase ir.ORECV:/+2,/^\tcase /-2 walkRecv
	add walk.go:/^func walkRecv/-0 \
		// walkRecv walks an ORECV node.
	mv walkStmt:/^\tcase ir.ODCL:/+2,/^\tcase /-2 walkDecl
	add walk.go:/^func walkDecl/-0 \
		// walkDecl walks an ODCL node.
	mv walkStmt:/^\tcase ir.OGO:/+2,/^\tcase /-2 walkGoDefer
	add walk.go:/^func walkGoDefer/-0 \
		// walkGoDefer walks an OGO or ODEFER node.
	mv walkStmt:/^\tcase ir.OFOR,/+2,/^\tcase /-2 walkFor
	add walk.go:/^func walkFor/-0 \
		// walkFor walks an OFOR or OFORUNTIL node.
	mv walkStmt:/^\tcase ir.OIF:/+2,/^\tcase /-2 walkIf
	add walk.go:/^func walkIf/-0 \
		// walkIf walks an OIF node.
	mv walkStmt:/^\tcase ir.ORETURN:/+2,/^\tcase /-2 walkReturn
	add walk.go:/^func walkReturn/-0 \
		// walkReturn walks an ORETURN node.

	mv walkExpr1:/^\tcase ir.ODOT,/+2,/^\tcase /-2 walkDot
	add walk.go:/^func walkDot/-0 \
		// walkDot walks an ODOT or ODOTPTR node.
	mv walkExpr1:/^\tcase ir.ODOTTYPE,/+2,/^\tcase /-2 walkDotType
	add walk.go:/^func walkDotType/-0 \
		// walkDotType walks an ODOTTYPE or ODOTTYPE2 node.
	mv walkExpr1:/^\tcase ir.OLEN,/+2,/^\tcase /-2 walkLenCap
	add walk.go:/^func walkLenCap/-0 \
		// walkLenCap walks an OLEN or OCAP node.
	mv walkExpr1:/^\tcase ir.OANDAND,/+2,/^\tcase /-2 walkLogical
	add walk.go:/^func walkLogical/-0 \
		// walkLogical walks an OANDAND or OOROR node.
	mv walkExpr1:/^\tcase ir.OCALLINTER,/+2,/^\tcase /-2 walkCall
	add walk.go:/^func walkCall/-0 \
		// walkCall walks an OCALLFUNC, OCALLINTER, or OCALLMETH node.
	mv walkExpr1:/^\tcase ir.OAS,/+1,/^\tcase /-2 walkAssign
	add walk.go:/^func walkAssign/-0 \
		// walkAssign walks an OAS (AssignExpr) or OASOP (AssignOpExpr) node.
	mv walkExpr1:/^\tcase ir.OAS2:/+2,/^\tcase /-3 walkAssignList
	add walk.go:/^func walkAssignList/-0 \
		// walkAssignList walks an OAS2 node.
	mv walkExpr1:/^\tcase ir.OAS2FUNC:/+2,/^\tcase /-4 walkAssignFunc
	add walk.go:/^func walkAssignFunc/-0 \
		// walkAssignFunc walks an OAS2FUNC node.
	mv walkExpr1:/^\tcase ir.OAS2RECV:/+2,/^\tcase /-3 walkAssignRecv
	add walk.go:/^func walkAssignRecv/-0 \
		// walkAssignRecv walks an OAS2RECV node.
	mv walkExpr1:/^\tcase ir.OAS2MAPR:/+2,/^\tcase /-2 walkAssignMapRead
	add walk.go:/^func walkAssignMapRead/-0 \
		// walkAssignMapRead walks an OAS2MAPR node.
	mv walkExpr1:/^\tcase ir.ODELETE:/+2,/^\tcase /-2 walkDelete
	add walk.go:/^func walkDelete/-0 \
		// walkDelete walks an ODELETE node.
	mv walkExpr1:/^\tcase ir.OAS2DOTTYPE:/+2,/^\tcase /-2 walkAssignDotType
	add walk.go:/^func walkAssignDotType/-0 \
		// walkAssignDotType walks an OAS2DOTTYPE node.
	mv walkExpr1:/^\tcase ir.OCONVIFACE:/+2,/^\tcase /-2 walkConvInterface
	add walk.go:/^func walkConvInterface/-0 \
		// walkConvInterface walks an OCONVIFACE node.
	mv walkExpr1:/^\tcase ir.OCONV,/+2,/^\tcase /-2 walkConv
	add walk.go:/^func walkConv/-0 \
		// walkConv walks an OCONV or OCONVNOP (but not OCONVIFACE) node.
	mv walkExpr1:/^\tcase ir.ODIV,/+2,/^\tcase /-2 walkDivMod
	add walk.go:/^func walkDivMod/-0 \
		// walkDivMod walks an ODIV or OMOD node.
	mv walkExpr1:/^\tcase ir.OINDEX:/+2,/^\tcase /-2 walkIndex
	add walk.go:/^func walkIndex/-0 \
		// walkIndex walks an OINDEX node.
	# move type assertion above comment
	mv walkExpr1:/^\tcase ir.OINDEXMAP:/+/n := n/-+ walkExpr1:/^\tcase ir.OINDEXMAP:/+0
	mv walkExpr1:/^\tcase ir.OINDEXMAP:/+2,/^\tcase /-2 walkIndexMap
	add walk.go:/^func walkIndexMap/-0 \
		// walkIndexMap walks an OINDEXMAP node.
	mv walkExpr1:/^\tcase ir.OSLICEHEADER:/+2,/^\tcase /-2 walkSliceHeader
	add walk.go:/^func walkSliceHeader/-0 \
		// walkSliceHeader walks an OSLICEHEADER node.
	mv walkExpr1:/^\tcase ir.OSLICE,/+2,/^\tcase /-2 walkSlice
	add walk.go:/^func walkSlice/-0 \
		// walkSlice walks an OSLICE, OSLICEARR, OSLICESTR, OSLICE3, or OSLICE3ARR node.
	mv walkExpr1:/^\tcase ir.ONEW:/+2,/^\tcase /-2 walkNew
	add walk.go:/^func walkNew/-0 \
		// walkNew walks an ONEW node.
	# move type assertion above comment
	mv walkExpr1:/^\tcase ir.OCLOSE:/+/n := n/-+ walkExpr1:/^\tcase ir.OCLOSE:/+0
	mv walkExpr1:/^\tcase ir.OCLOSE:/+2,/^\tcase /-2 walkClose
	add walk.go:/^func walkClose/-0 \
		// walkClose walks an OCLOSE node.
	# move type assertion above comment
	mv walkExpr1:/^\tcase ir.OMAKECHAN:/+/n := n/-+ walkExpr1:/^\tcase ir.OMAKECHAN:/+0
	mv walkExpr1:/^\tcase ir.OMAKECHAN:/+2,/^\tcase /-2 walkMakeChan
	add walk.go:/^func walkMakeChan/-0 \
		// walkMakeChan walks an OMAKECHAN node.
	mv walkExpr1:/^\tcase ir.OMAKEMAP:/+2,/^\tcase /-2 walkMakeMap
	add walk.go:/^func walkMakeMap/-0 \
		// walkMakeMap walks an OMAKEMAP node.
	mv walkExpr1:/^\tcase ir.OMAKESLICE:/+2,/^\tcase /-2 walkMakeSlice
	add walk.go:/^func walkMakeSlice/-0 \
		// walkMakeSlice walks an OMAKESLICE node.
	mv walkExpr1:/^\tcase ir.OMAKESLICECOPY:/+2,/^\tcase /-2 walkMakeSliceCopy
	add walk.go:/^func walkMakeSliceCopy/-0 \
		// walkMakeSliceCopy walks an OMAKESLICECOPY node.
	mv walkExpr1:/^\tcase ir.ORUNESTR:/+2,/^\tcase /-2 walkRuneToString
	add walk.go:/^func walkRuneToString/-0 \
		// walkRuneToString walks an ORUNESTR node.
	mv walkExpr1:/^\tcase ir.OBYTES2STR,/+2,/^\tcase /-2 walkBytesRunesToString
	add walk.go:/^func walkBytesRunesToString/-0 \
		// walkBytesRunesToString walks an OBYTES2STR or ORUNES2STR node.
	mv walkExpr1:/^\tcase ir.OBYTES2STRTMP:/+2,/^\tcase /-2 walkBytesToStringTemp
	add walk.go:/^func walkBytesToStringTemp/-0 \
		// walkBytesToStringTemp walks an OBYTES2STRTMP node.
	mv walkExpr1:/^\tcase ir.OSTR2BYTES:/+2,/^\tcase /-2 walkStringToBytes
	add walk.go:/^func walkStringToBytes/-0 \
		// walkStringToBytes walks an OSTR2BYTES node.
	# move type assertion above comment
	mv walkExpr1:/^\tcase ir.OSTR2BYTESTMP:/+/n := n/-+ walkExpr1:/^\tcase ir.OSTR2BYTESTMP:/+0
	mv walkExpr1:/^\tcase ir.OSTR2BYTESTMP:/+2,/^\tcase /-2 walkStringToBytesTemp
	add walk.go:/^func walkStringToBytesTemp/-0 \
		// walkStringToBytesTemp walks an OSTR2BYTESTMP node.
	mv walkExpr1:/^\tcase ir.OSTR2RUNES:/+2,/^\tcase /-2 walkStringToRunes
	add walk.go:/^func walkStringToRunes/-0 \
		// walkStringToRunes walks an OSTR2RUNES node.
	mv walkExpr1:/^\tcase ir.OARRAYLIT,/+1,/^\tcase /-2 walkCompLit
	add walk.go:/^func walkCompLit/-0 \
		// walkCompLit walks a composite literal node: \
		// OARRAYLIT, OSLICELIT, OMAPLIT, OSTRUCTLIT (all CompLitExpr), or OPTRLIT (AddrExpr).
	mv walkExpr1:/^\tcase ir.OSEND:/+2,/^\tcase /-2 walkSend
	add walk.go:/^func walkSend/-0 \
		// walkSend walks an OSEND node.

	mv walkStmt walkStmtList \
		walkDecl \
		walkFor \
		walkGoDefer \
		walkIf \
		wrapCall \
		stmt.go

	mv walkExpr walkExpr1 walkExprList walkExprListCheap walkExprListSafe \
		cheapExpr safeExpr copyExpr \
		walkAddString \
		walkCall \
		walkCall1 \
		walkDivMod \
		walkDot \
		walkDotType \
		walkIndex \
		walkIndexMap \
		walkLogical \
		walkSend \
		walkSlice \
		walkSliceHeader \
		reduceSlice \
		bounded \
		usemethod \
		usefield \
		expr.go

	mv \
		walkAssign \
		walkAssignDotType \
		walkAssignFunc \
		walkAssignList \
		walkAssignMapRead \
		walkAssignRecv \
		walkReturn \
		fncall \
		ascompatee \
		ascompatee1 \
		ascompatet \
		reorder3 \
		reorder3save \
		aliased \
		anyAddrTaken \
		refersToName \
		refersToCommonName \
		appendSlice \
		isAppendOfMake \
		extendSlice \
		assign.go

	mv \
		walkCompare \
		walkCompareInterface \
		walkCompareString \
		finishCompare \
		eqFor \
		brcom \
		brrev \
		tracecmpArg \
		canMergeLoads \
		compare.go

	mv \
		walkConv \
		walkConvInterface \
		walkBytesRunesToString \
		walkBytesToStringTemp \
		walkRuneToString \
		walkStringToBytes \
		walkStringToBytesTemp \
		walkStringToRunes \
		convFuncName \
		rtconvfn \
		byteindex \
		walkCheckPtrAlignment \
		walkCheckPtrArithmetic \
		convert.go

	mv \
		walkAppend \
		walkClose \
		walkCopy \
		walkDelete \
		walkLenCap \
		walkMakeChan \
		walkMakeMap \
		walkMakeSlice \
		walkMakeSliceCopy \
		walkNew \
		walkPrint \
		badtype \
		callnew \
		writebarrierfn \
		isRuneCount \
		builtin.go

	mv \
		walkCompLit \
		sinit.go \
		complit.go

	mv subr.go walk.go
'

Change-Id: Ie0cf3ba4adf363c120c134d57cb7ef37934eaab9
Reviewed-on: https://go-review.googlesource.com/c/go/+/279430
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:50 +00:00
Russ Cox
e4895ab4c0 [dev.regabi] cmd/compile: split out package walk [generated]
[git-generate]
cd src/cmd/compile/internal/gc
rf '
	# Late addition to package ir.
	mv closuredebugruntimecheck ClosureDebugRuntimeCheck
	mv hasemptycvars IsTrivialClosure
	mv ClosureDebugRuntimeCheck IsTrivialClosure func.go
	mv func.go cmd/compile/internal/ir

	# Late addition to package reflectdata.
	mv markTypeUsedInInterface MarkTypeUsedInInterface
	mv markUsedIfaceMethod MarkUsedIfaceMethod
	mv MarkTypeUsedInInterface MarkUsedIfaceMethod reflect.go
	mv reflect.go cmd/compile/internal/reflectdata

	# Late addition to package staticdata.
	mv litsym InitConst
	mv InitConst data.go
	mv data.go cmd/compile/internal/staticdata

	# Extract staticinit out of walk into its own package.
	mv InitEntry InitPlan InitSchedule InitSchedule.append InitSchedule.staticInit \
		InitSchedule.tryStaticInit InitSchedule.staticcopy \
		InitSchedule.staticassign InitSchedule.initplan InitSchedule.addvalue \
		statuniqgen staticname stataddr anySideEffects getlit isvaluelit \
		sched.go
	mv InitSchedule.initplans InitSchedule.Plans
	mv InitSchedule.inittemps InitSchedule.Temps
	mv InitSchedule.out InitSchedule.Out
	mv InitSchedule.staticInit InitSchedule.StaticInit
	mv InitSchedule.staticassign InitSchedule.StaticAssign
	mv InitSchedule Schedule
	mv InitPlan Plan
	mv InitEntry Entry
	mv anySideEffects AnySideEffects
	mv staticname StaticName
	mv stataddr StaticLoc
	mv sched.go cmd/compile/internal/staticinit

	# Export API and unexport non-API.
	mv transformclosure Closure
	mv walk Walk

	mv Order orderState

	mv swt.go switch.go
	mv racewalk.go race.go

	mv closure.go order.go range.go select.go switch.go race.go \
		sinit.go subr.go walk.go \
		cmd/compile/internal/walk
'

: # Update format test.
cd ../../
go install cmd/compile/... cmd/internal/archive
go test -u || go test -u
rm -rf ../../../pkg/darwin_amd64/cmd

Change-Id: I11c7a45f74d4a9e963da15c080e1018caaa99c05
Reviewed-on: https://go-review.googlesource.com/c/go/+/279478
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:43 +00:00
Russ Cox
01fd2d05c8 [dev.regabi] cmd/compile: split out package dwarfgen [generated]
[git-generate]
cd src/cmd/compile/internal/gc

rf '
	# Inline and remove ngotype.
	ex {
		import "cmd/compile/internal/ir"
		import "cmd/compile/internal/reflectdata"
		var n ir.Node
		ngotype(n) -> reflectdata.TypeSym(n.Type())
	}
	rm ngotype

	mv recordFlags RecordFlags
	mv recordPackageName RecordPackageName
	mv RecordFlags RecordPackageName dwarf.go

	mv debuginfo Info
	mv genAbstractFunc AbstractFunc
	mv scope.go scope_test.go dwarf.go dwinl.go cmd/compile/internal/dwarfgen
'

Change-Id: I31fa982900dbba2066ca4c7a706af922e5481c70
Reviewed-on: https://go-review.googlesource.com/c/go/+/279477
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:36 +00:00
Russ Cox
6c34d2f420 [dev.regabi] cmd/compile: split out package ssagen [generated]
[git-generate]

cd src/cmd/compile/internal/gc
rf '
	# maxOpenDefers is declared in ssa.go but used only by walk.
	mv maxOpenDefers walk.go

	# gc.Arch -> ssagen.Arch
	# It is not as nice but will do for now.
	mv Arch ArchInfo
	mv thearch Arch
	mv Arch ArchInfo arch.go

	# Pull dwarf out of pgen.go.
	mv debuginfo declPos createDwarfVars preInliningDcls \
		createSimpleVars createSimpleVar \
		createComplexVars createComplexVar \
		dwarf.go

	# Pull high-level compilation out of pgen.go,
	# leaving only the SSA code.
	mv compilequeue funccompile compile compilenow \
		compileFunctions isInlinableButNotInlined \
		initLSym \
		compile.go

	mv BoundsCheckFunc GCWriteBarrierReg ssa.go
	mv largeStack largeStackFrames CheckLargeStacks pgen.go

	# All that is left in dcl.go is the nowritebarrierrecCheck
	mv dcl.go nowb.go

	# Export API and unexport non-API.
	mv initssaconfig InitConfig
	mv isIntrinsicCall IsIntrinsicCall
	mv ssaDumpInline DumpInline
	mv initSSATables InitTables
	mv initSSAEnv InitEnv
	mv compileSSA Compile
	mv stackOffset StackOffset
	mv canSSAType TypeOK
	mv SSAGenState State
	mv FwdRefAux fwdRefAux

	mv cgoSymABIs CgoSymABIs
	mv readSymABIs ReadSymABIs
	mv initLSym InitLSym
	mv useABIWrapGen symabiDefs CgoSymABIs ReadSymABIs InitLSym selectLSym makeABIWrapper setupTextLSym abi.go

	mv arch.go abi.go nowb.go phi.go pgen.go pgen_test.go ssa.go cmd/compile/internal/ssagen
'
rm go.go gsubr.go

Change-Id: I47fad6cbf1d1e583fd9139003a08401d7cd048a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/279476
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:29 +00:00
Russ Cox
de65151e50 [dev.regabi] cmd/compile: split out package reflectdata [generated]
[git-generate]

cd src/cmd/compile/internal/gc
rf '
	ex {
		import "cmd/compile/internal/base"
		thearch.LinkArch.Name -> base.Ctxt.Arch.Name
	}

	# Move out of reflect.go a few functions that should stay.
	mv addsignats obj.go
	mv deferstruct ssa.go

	# Export reflectdata API.
	mv zerosize ZeroSize
	mv hmap MapType
	mv bmap MapBucketType
	mv hiter MapIterType
	mv addsignat NeedRuntimeType
	mv typename TypePtr
	mv typenamesym TypeSym
	mv typesymprefix TypeSymPrefix
	mv itabsym ITabSym
	mv tracksym TrackSym
	mv zeroaddr ZeroAddr
	mv itabname ITabAddr
	mv ifaceMethodOffset InterfaceMethodOffset
	mv peekitabs CompileITabs
	mv addptabs CollectPTabs
	mv algtype AlgType
	mv dtypesym WriteType
	mv dumpbasictypes WriteBasicTypes
	mv dumpimportstrings WriteImportStrings
	mv dumpsignats WriteRuntimeTypes
	mv dumptabs WriteTabs
	mv eqinterface EqInterface
	mv eqstring EqString

	mv GCProg gcProg
	mv EqCanPanic eqCanPanic
	mv IsRegularMemory isRegularMemory
	mv Sig typeSig

	mv hashmem alg.go
	mv CollectPTabs genwrapper ZeroSize reflect.go
	mv alg.go reflect.go cmd/compile/internal/reflectdata
'

Change-Id: Iaae9da9e9fad5f772f5216004823ccff2ea8f139
Reviewed-on: https://go-review.googlesource.com/c/go/+/279475
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:23 +00:00
Russ Cox
4dfb5d91a8 [dev.regabi] cmd/compile: split out package staticdata [generated]
[git-generate]
cd src/cmd/compile/internal/gc

rf '
	# Export API and move to its own files.
	mv addrsym InitAddr
	mv pfuncsym InitFunc
	mv slicesym InitSlice
	mv slicebytes InitSliceBytes
	mv stringsym StringSym
	mv funcsym FuncSym
	mv makefuncsym NeedFuncSym
	mv dumpfuncsyms WriteFuncSyms
	mv InitAddr InitFunc InitSlice InitSliceBytes stringSymPrefix \
		StringSym fileStringSym slicedataGen slicedata dstringdata \
		funcsyms FuncSym NeedFuncSym WriteFuncSyms \
		data.go

	mv initEmbed WriteEmbed
	mv dumpembeds obj.go

	mv data.go embed.go cmd/compile/internal/staticdata
'

Change-Id: I209c5e597c8acfa29a48527695a9ddc1e9ea8e6a
Reviewed-on: https://go-review.googlesource.com/c/go/+/279474
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:16 +00:00
Russ Cox
fbc82f03b1 [dev.regabi] cmd/compile: split out package noder [generated]
[git-generate]
cd src/cmd/compile/internal/gc

rf '
	mv ArhdrSize HeaderSize
	mv arsize ReadHeader
	mv formathdr FormatHeader
	mv HeaderSize ReadHeader FormatHeader archive.go
	mv archive.go cmd/internal/archive

	mv makePos main.go

	mv checkDotImports CheckDotImports
	mv parseFiles ParseFiles

	mv Pragma pragmas
	mv PragmaEmbed pragmaEmbed
	mv PragmaPos pragmaPos
	mv FuncPragmas funcPragmas
	mv TypePragmas typePragmas

	mv fakeRecv noder.funcLit renameinitgen renameinit oldname varEmbed noder.go
	mv isDriveLetter islocalname findpkg myheight importfile \
		reservedimports isbadimport \
		pkgnotused \
		mkpackage clearImports \
		CheckDotImports dotImports importDot \
		importName \
		import.go

	mv noder _noder
	mv import.go lex.go lex_test.go noder.go cmd/compile/internal/noder
'
cd ../noder
rf '
	mv _noder noder
'

Change-Id: Iac2b856f7b86143c666d818e4b7c5b261cf387d5
Reviewed-on: https://go-review.googlesource.com/c/go/+/279473
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:06 +00:00
Russ Cox
de454eef5f [dev.regabi] cmd/compile: split out package escape [generated]
[git-generate]

cd src/cmd/compile/internal/gc
rf '
	# Trivial min, max defined in escape.go but only used in ssa.go.
	mv min8 max8 ssa.go

	# Export package escape API.
	mv escapes Funcs
	mv escapeFuncs Batch
	mv escFmt Fmt
	mv unsafeUintptrTag UnsafeUintptrNote
	mv uintptrEscapesTag UintptrEscapesNote
	mv heapAllocReason HeapAllocReason

	# Unexport non-API.
	mv EscEdge edge
	mv EscHole hole
	mv EscLeaks leaks
	mv ParseLeaks parseLeaks
	mv EscLocation location
	mv EscNote note
	mv Escape _escape # leave room for escape import, fixed below
	mv EscFuncUnknown escFuncUnknown
	mv EscFuncPlanned escFuncPlanned
	mv EscFuncStarted escFuncStarted
	mv EscFuncTagged escFuncTagged

	mv escape.go cmd/compile/internal/escape
'
cd ../escape
rf '
	mv _escape escape
'

Change-Id: I3a6d1bfb6eba12bea936354ea1fe9813cbde425c
Reviewed-on: https://go-review.googlesource.com/c/go/+/279472
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:39:00 +00:00
Russ Cox
071ab0a14c [dev.regabi] cmd/compile: split out package liveness [generated]
[git-generate]

cd src/cmd/compile/internal/gc
rf '
	# AutoVar is essentially an ssa helper; move it there.
	mv AutoVar value.go
	mv value.go cmd/compile/internal/ssa

	# Export liveness API and unexport non-API.
	mv LivenessMap Map
	mv Map.vals Map.Vals
	mv Map.deferreturn Map.DeferReturn
	mv livenessShouldTrack ShouldTrack
	mv onebitwalktype1 SetTypeBits
	mv allUnsafe IsUnsafe
	mv liveness Compute
	mv BlockEffects blockEffects
	mv Liveness liveness
	mv liveness _liveness # make room for import

	mv emitptrargsmap WriteFuncMap
	mv WriteFuncMap plive.go

	mv bvset.go plive.go cmd/compile/internal/liveness
'
cd ../liveness
rf '
	mv _liveness liveness
'

Change-Id: I3b86e5025bd9d32a7e19f44714fa16be4125059e
Reviewed-on: https://go-review.googlesource.com/c/go/+/279311
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:53 +00:00
Russ Cox
0ced54062e [dev.regabi] cmd/compile: split out package objw [generated]
Object file writing routines are used not just at the end
of the compilation but also during static data layout in walk.
Split them into their own package.

[git-generate]

cd src/cmd/compile/internal/gc
rf '
	# Move bit vector to new package bitvec
	mv bvec.n bvec.N
	mv bvec.b bvec.B
	mv bvec BitVec
	mv bvalloc New
	mv bvbulkalloc NewBulk
	mv bulkBvec.next bulkBvec.Next
	mv bulkBvec Bulk
	mv H0 h0
	mv Hp hp

	# Leave bvecSet and bitmap hashes behind - not needed as broadly.
	mv bvecSet.extractUniqe bvecSet.extractUnique
	mv h0 bvecSet bvecSet.grow bvecSet.add \
		bvecSet.extractUnique hashbitmap bvset.go

	mv bv.go cmd/compile/internal/bitvec

	ex . ../arm ../arm64 ../mips ../mips64 ../ppc64 ../s390x ../riscv64 {
		import "cmd/internal/obj"
		var a *obj.Addr
		var i int64
		Addrconst(a, i) -> a.SetConst(i)
		var p, to *obj.Prog
		Patch(p, to) -> p.To.SetTarget(to)
	}
	rm Addrconst Patch

	# Move object-writing API to new package objw
	mv duint8 Objw_Uint8
	mv duint16 Objw_Uint16
	mv duint32 Objw_Uint32
	mv duintptr Objw_Uintptr
	mv duintxx Objw_UintN
	mv dsymptr Objw_SymPtr
	mv dsymptrOff Objw_SymPtrOff
	mv dsymptrWeakOff Objw_SymPtrWeakOff
	mv ggloblsym Objw_Global
	mv dbvec Objw_BitVec
	mv newProgs NewProgs
	mv Progs.clearp Progs.Clear
	mv Progs.settext Progs.SetText
	mv Progs.next Progs.Next
	mv Progs.pc Progs.PC
	mv Progs.pos Progs.Pos
	mv Progs.curfn Progs.CurFunc
	mv Progs.progcache Progs.Cache
	mv Progs.cacheidx Progs.CacheIndex
	mv Progs.nextLive Progs.NextLive
	mv Progs.prevLive Progs.PrevLive
	mv Progs.Appendpp Progs.Append
	mv LivenessIndex.stackMapIndex LivenessIndex.StackMapIndex
	mv LivenessIndex.isUnsafePoint LivenessIndex.IsUnsafePoint

	mv Objw_Uint8 Objw_Uint16 Objw_Uint32 Objw_Uintptr Objw_UintN \
		Objw_SymPtr Objw_SymPtrOff Objw_SymPtrWeakOff Objw_Global \
		Objw_BitVec \
		objw.go
	mv sharedProgArray NewProgs Progs \
		LivenessIndex StackMapDontCare \
		LivenessDontCare LivenessIndex.StackMapValid \
		Progs.NewProg Progs.Flush Progs.Free Progs.Prog Progs.Clear Progs.Append Progs.SetText \
		prog.go
	mv prog.go objw.go cmd/compile/internal/objw

	# Move ggloblnod to obj with the rest of the non-objw higher-level writing.
	mv ggloblnod obj.go
'

cd ../objw
rf '
	mv Objw_Uint8 Uint8
	mv Objw_Uint16 Uint16
	mv Objw_Uint32 Uint32
	mv Objw_Uintptr Uintptr
	mv Objw_UintN UintN
	mv Objw_SymPtr SymPtr
	mv Objw_SymPtrOff SymPtrOff
	mv Objw_SymPtrWeakOff SymPtrWeakOff
	mv Objw_Global Global
	mv Objw_BitVec BitVec
'

Change-Id: I2b87085aa788564fb322e9c55bddd73347b4d5fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/279310
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:47 +00:00
Russ Cox
575fd6ff0a [dev.regabi] cmd/compile: split out package inline [generated]
[git-generate]

cd src/cmd/compile/internal/gc
rf '
	mv numNonClosures inl.go
	mv inlFlood Inline_Flood
	mv inlcalls InlineCalls
	mv devirtualize Devirtualize
	mv caninl CanInline

	mv inl.go cmd/compile/internal/inline
'

Change-Id: Iee1f5b1e82d5cea6be4ecd91e6920500810f21de
Reviewed-on: https://go-review.googlesource.com/c/go/+/279309
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:41 +00:00
Russ Cox
0256ba99a8 [dev.regabi] cmd/compile: split up typecheck1 [generated]
typecheck1 is the largest non-machine-generated function in the compiler.
weighing in at 1,747 lines. Since we are destroying the git blame history
anyway, now is a good time to split each different case into its own function,
making future work on this function more manageable.

[git-generate]
cd src/cmd/compile/internal/typecheck
rf '
	# Remove tracing print from typecheck1 - the one in typecheck is fine.
	# Removing it lets us remove the named result.
	# That lets all the cut-out functions not have named results.
	rm typecheck.go:/^func typecheck1/+0,/^func typecheck1/+4
	sub typecheck.go:/^func typecheck1/+/\(res ir\.Node\)/ ir.Node

	mv typecheckselect tcSelect
	mv typecheckswitch tcSwitch
	mv typecheckrange tcRange
	mv typecheckfunc tcFunc
	mv checkdefergo tcGoDefer
	mv typecheckclosure tcClosure
	mv check typecheck
	mv typecheckcomplit tcCompLit
	mv typecheckas tcAssign
	mv typecheckas2 tcAssignList
	mv typecheckpartialcall tcCallPart
	mv typecheckExprSwitch tcSwitchExpr
	mv typecheckTypeSwitch tcSwitchType

	mv typecheck1:/^\tcase ir.ORETURN:/+2,/^\tcase /-2 tcReturn
	add typecheck.go:/^func tcReturn/-0 \
		// tcReturn typechecks an ORETURN node.
	mv typecheck1:/^\tcase ir.OIF:/+2,/^\tcase /-2 tcIf
	add typecheck.go:/^func tcIf/-0 \
		// tcIf typechecks an OIF node.
	mv typecheck1:/^\tcase ir.OFOR,/+2,/^\tcase /-2 tcFor
	add typecheck.go:/^func tcFor/-0 \
		// tcFor typechecks an OFOR node.
	mv typecheck1:/^\tcase ir.OSPTR:/+2,/^\tcase /-2 tcSPtr
	add typecheck.go:/^func tcSPtr/-0 \
		// tcSPtr typechecks an OSPTR node.
	mv typecheck1:/^\tcase ir.OITAB:/+2,/^\tcase /-2 tcITab
	add typecheck.go:/^func tcITab/-0 \
		// tcITab typechecks an OITAB node.
	mv typecheck1:/^\tcase ir.ORECOVER:/+2,/^\tcase /-2 tcRecover
	add typecheck.go:/^func tcRecover/-0 \
		// tcRecover typechecks an ORECOVER node.
	mv typecheck1:/^\tcase ir.OPANIC:/+2,/^\tcase /-2 tcPanic
	add typecheck.go:/^func tcPanic/-0 \
		// tcPanic typechecks an OPANIC node.
	mv typecheck1:/^\tcase ir.OPRINT,/+2,/^\tcase /-2 tcPrint
	add typecheck.go:/^func tcPrint/-0 \
		// tcPrint typechecks an OPRINT or OPRINTN node.
	mv typecheck1:/^\tcase ir.ONEW:/+2,/^\tcase /-2 tcNew
	add typecheck.go:/^func tcNew/-0 \
		// tcNew typechecks an ONEW node.
	mv typecheck1:/^\tcase ir.OMAKE:/+2,/^\tcase /-2 tcMake
	add typecheck.go:/^func tcMake/-0 \
		// tcMake typechecks an OMAKE node.
	mv typecheck1:/^\tcase ir.OCONV:/+2,/^\tcase /-2 tcConv
	add typecheck.go:/^func tcConv/-0 \
		// tcConv typechecks an OCONV node.
	mv typecheck1:/^\tcase ir.OCOPY:/+2,/^\tcase /-2 tcCopy
	add typecheck.go:/^func tcCopy/-0 \
		// tcCopy typechecks an OCOPY node.
	mv typecheck1:/^\tcase ir.OAPPEND:/+2,/^\tcase /-2 tcAppend
	add typecheck.go:/^func tcAppend/-0 \
		// tcAppend typechecks an OAPPEND node.
	mv typecheck1:/^\tcase ir.ODELETE:/+2,/^\tcase /-2 tcDelete
	add typecheck.go:/^func tcDelete/-0 \
		// tcDelete typechecks an ODELETE node.
	mv typecheck1:/^\tcase ir.OCLOSE:/+2,/^\tcase /-2 tcClose
	add typecheck.go:/^func tcClose/-0 \
		// tcClose typechecks an OCLOSE node.
	mv typecheck1:/^\tcase ir.OCOMPLEX:/+2,/^\tcase /-2 tcComplex
	add typecheck.go:/^func tcComplex/-0 \
		// tcComplex typechecks an OCOMPLEX node.
	mv typecheck1:/^\tcase ir.OREAL,/+2,/^\tcase /-2 tcRealImag
	add typecheck.go:/^func tcRealImag/-0 \
		// tcRealImag typechecks an OREAL or OIMAG node.
	mv typecheck1:/^\tcase ir.OCAP,/+2,/^\tcase /-2 tcLenCap
	add typecheck.go:/^func tcLenCap/-0 \
		// tcLenCap typechecks an OLEN or OCAP node.
	mv typecheck1:/^\tcase ir.OCALL:/+2,/^\tcase /-2 tcCall
	add typecheck.go:/^func tcCall/-0 \
		// tcCall typechecks an OCALL node.
	mv typecheck1:/^\tcase ir.OSLICE,/+2,/^\tcase /-3 tcSlice
	add typecheck.go:/^func tcSlice/-0 \
		// tcSlice typechecks an OSLICE or OSLICE3 node.
	# move type assertion above comment
	mv typecheck1:/^\tcase ir.OMAKESLICECOPY:/+/n := n/-+ typecheck1:/^\tcase ir.OMAKESLICECOPY:/+0
	mv typecheck1:/^\tcase ir.OMAKESLICECOPY:/+2,/^\tcase /-2 tcMakeSliceCopy
	add typecheck.go:/^func tcMakeSliceCopy/-0 \
		// tcMakeSliceCopy typechecks an OMAKESLICECOPY node.
	# move type assertion above comment
	mv typecheck1:/^\tcase ir.OSLICEHEADER:/+/n := n/-+ typecheck1:/^\tcase ir.OSLICEHEADER:/+0
	mv typecheck1:/^\tcase ir.OSLICEHEADER:/+2,/^\tcase /-2 tcSliceHeader
	add typecheck.go:/^func tcSliceHeader/-0 \
		// tcSliceHeader typechecks an OSLICEHEADER node.
	mv typecheck1:/^\tcase ir.OSEND:/+2,/^\tcase /-2 tcSend
	add typecheck.go:/^func tcSend/-0 \
		// tcSend typechecks an OSEND node.
	mv typecheck1:/^\tcase ir.ORECV:/+2,/^\tcase /-2 tcRecv
	add typecheck.go:/^func tcRecv/-0 \
		// tcRecv typechecks an ORECV node.
	mv typecheck1:/^\tcase ir.OINDEX:/+2,/^\tcase /-2 tcIndex
	add typecheck.go:/^func tcIndex/-0 \
		// tcIndex typechecks an OINDEX node.
	mv typecheck1:/^\tcase ir.ODOTTYPE:/+2,/^\tcase /-2 tcDotType
	add typecheck.go:/^func tcDotType/-0 \
		// tcDotType typechecks an ODOTTYPE node.
	mv typecheck1:/^\tcase ir.OXDOT,/+2,/^\tcase /-2 tcDot
	add typecheck.go:/^func tcDot/-0 \
		// tcDot typechecks an OXDOT or ODOT node.
	mv typecheck1:/^\tcase ir.OADDR:/+2,/^\tcase /-2 tcAddr
	add typecheck.go:/^func tcAddr/-0 \
		// tcAddr typechecks an OADDR node.
	mv typecheck1:/^\tcase ir.OBITNOT,/+2,/^\tcase /-3 tcUnaryArith
	add typecheck.go:/^func tcUnaryArith/-0 \
		// tcUnaryArith typechecks a unary arithmetic expression.
	mv typecheck1:/^\t\tir.OXOR:/+1,/^\tcase /-2 tcArith
	add typecheck.go:/^func tcArith/-0 \
		// tcArith typechecks a binary arithmetic expression.
	mv typecheck1:/^\tcase ir.ODEREF:/+2,/^\tcase /-2 tcStar
	add typecheck.go:/^func tcStar/-0 \
		// tcStar typechecks an ODEREF node, which may be an expression or a type.
	mv typecheck1:/^\tcase ir.OTFUNC:/+2,/^\tcase /-2 tcFuncType
	add typecheck.go:/^func tcFuncType/-0 \
		// tcFuncType typechecks an OTFUNC node.
	mv typecheck1:/^\tcase ir.OTINTER:/+2,/^\tcase /-2 tcInterfaceType
	add typecheck.go:/^func tcInterfaceType/-0 \
		// tcInterfaceType typechecks an OTINTER node.
	mv typecheck1:/^\tcase ir.OTSTRUCT:/+2,/^\tcase /-2 tcStructType
	add typecheck.go:/^func tcStructType/-0 \
		// tcStructType typechecks an OTSTRUCT node.
	mv typecheck1:/^\tcase ir.OTCHAN:/+2,/^\tcase /-2 tcChanType
	add typecheck.go:/^func tcChanType/-0 \
		// tcChanType typechecks an OTCHAN node.
	mv typecheck1:/^\tcase ir.OTMAP:/+2,/^\tcase /-2 tcMapType
	add typecheck.go:/^func tcMapType/-0 \
		// tcMapType typechecks an OTMAP node.
	mv typecheck1:/^\tcase ir.OTARRAY:/+2,/^\tcase /-2 tcArrayType
	add typecheck.go:/^func tcArrayType/-0 \
		// tcArrayType typechecks an OTARRAY node.
	mv typecheck1:/^\tcase ir.OTSLICE:/+2,/^\tcase /-2 tcSliceType
	add typecheck.go:/^func tcSliceType/-0 \
		// tcSliceType typechecks an OTSLICE node.
	mv \
		tcAssign \
		tcAssignList \
		tcFor \
		tcGoDefer \
		tcIf \
		tcRange \
		tcReturn \
		tcSelect \
		tcSend \
		tcSwitch \
		tcSwitchExpr \
		tcSwitchType \
		typeSet \
		typeSetEntry \
		typeSet.add \
		stmt1.go
	mv stmt1.go stmt.go

	mv \
		tcAddr \
		tcArith \
		tcArrayType \
		tcChanType \
		tcClosure \
		tcCompLit \
		tcConv \
		tcDot \
		tcDotType \
		tcFuncType \
		tcITab \
		tcIndex \
		tcInterfaceType \
		tcLenCap \
		tcMapType \
		tcRecv \
		tcSPtr \
		tcSlice \
		tcSliceHeader \
		tcSliceType \
		tcStar \
		tcStructType \
		tcUnaryArith \
		expr.go

	mv \
		tcClosure \
		tcCallPart \
		tcFunc \
		tcCall \
		tcAppend \
		tcClose \
		tcComplex \
		tcCopy \
		tcDelete \
		tcMake \
		tcMakeSliceCopy \
		tcNew \
		tcPanic \
		tcPrint \
		tcRealImag \
		tcRecover \
		func1.go
	mv func1.go func.go

	mv \
		tcArrayType \
		tcChanType \
		tcFuncType \
		tcInterfaceType \
		tcMapType \
		tcSliceType \
		tcStructType \
		type.go
'

Change-Id: I0fb0a3039005bc1783575291daff1e6c306895ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/279429
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:34 +00:00
Russ Cox
b9693d7627 [dev.regabi] cmd/compile: split out package typecheck [generated]
This commit splits the typechecking logic into its own package,
the first of a sequence of CLs to break package gc into more
manageable units.

[git-generate]
cd src/cmd/compile/internal/gc
rf '
	# The binary import/export has to be part of typechecking,
	# because we load inlined function bodies lazily, but "exporter"
	# should not be. Move that out of bexport.go.
	mv exporter exporter.markObject exporter.markType export.go

	# Use the typechecking helpers, so that the calls left behind
	# in package gc do not need access to ctxExpr etc.
	ex {
		import "cmd/compile/internal/ir"

		# TODO(rsc): Should not be necessary.
		avoid TypecheckExpr
		avoid TypecheckStmt
		avoid TypecheckExprs
		avoid TypecheckStmts
		avoid TypecheckAssignExpr
		avoid TypecheckCallee

		var n ir.Node
		var ns []ir.Node
		typecheck(n, ctxExpr) -> TypecheckExpr(n)
		typecheck(n, ctxStmt) -> TypecheckStmt(n)
		typecheckslice(ns, ctxExpr) -> TypecheckExprs(ns)
		typecheckslice(ns, ctxStmt) -> TypecheckStmts(ns)
		typecheck(n, ctxExpr|ctxAssign) -> TypecheckAssignExpr(n)
		typecheck(n, ctxExpr|ctxCallee) -> TypecheckCallee(n)
	}

	# Move some typechecking API to typecheck.
	mv syslook LookupRuntime
	mv substArgTypes SubstArgTypes
	mv LookupRuntime SubstArgTypes syms.go

	mv conv Conv
	mv convnop ConvNop
	mv Conv ConvNop typecheck.go

	mv colasdefn AssignDefn
	mv colasname assignableName

	mv Target target.go

	mv initname autoexport exportsym dcl.go
	mv exportsym Export

	# Export API to be called from outside typecheck.
	# The ones with "Typecheck" prefixes will be renamed later to drop the prefix.
	mv adddot AddImplicitDots
	mv assignconv AssignConv
	mv expandmeth CalcMethods
	mv capturevarscomplete CaptureVarsComplete
	mv checkMapKeys CheckMapKeys
	mv checkreturn CheckReturn
	mv dclcontext DeclContext
	mv dclfunc DeclFunc
	mv declare Declare
	mv dotImportRefs DotImportRefs
	mv declImporter DeclImporter
	mv variter DeclVars
	mv defaultlit DefaultLit
	mv evalConst EvalConst
	mv expandInline ImportBody
	mv finishUniverse declareUniverse
	mv funcbody FinishFuncBody
	mv funchdr StartFuncBody
	mv indexconst IndexConst
	mv initTodo InitTodoFunc
	mv lookup Lookup
	mv resolve Resolve
	mv lookupN LookupNum
	mv nodAddr NodAddr
	mv nodAddrAt NodAddrAt
	mv nodnil NodNil
	mv origBoolConst OrigBool
	mv origConst OrigConst
	mv origIntConst OrigInt
	mv redeclare Redeclared
	mv tostruct NewStructType
	mv functype NewFuncType
	mv methodfunc NewMethodType
	mv structargs NewFuncParams
	mv temp Temp
	mv tempAt TempAt
	mv typecheckok TypecheckAllowed
	mv typecheck _typecheck # make room for typecheck pkg
	mv typecheckinl TypecheckImportedBody
	mv typecheckFunc TypecheckFunc
	mv iimport ReadImports
	mv iexport WriteExports
	mv sysfunc LookupRuntimeFunc
	mv sysvar LookupRuntimeVar

	# Move function constructors to typecheck.
	mv mkdotargslice MakeDotArgs
	mv fixVariadicCall FixVariadicCall
	mv closureType ClosureType
	mv partialCallType PartialCallType
	mv capturevars CaptureVars
	mv MakeDotArgs FixVariadicCall ClosureType PartialCallType CaptureVars typecheckclosure func.go

	mv autolabel AutoLabel
	mv AutoLabel syms.go

	mv Dlist dlist
	mv Symlink symlink

	mv \
		AssignDefn assignableName \
		AssignConv \
		CaptureVarsComplete \
		DeclContext \
		DeclFunc \
		DeclImporter \
		DeclVars \
		Declare \
		DotImportRefs \
		Export \
		InitTodoFunc \
		Lookup \
		LookupNum \
		LookupRuntimeFunc \
		LookupRuntimeVar \
		NewFuncParams \
		NewName \
		NodAddr \
		NodAddrAt \
		NodNil \
		Redeclared \
		StartFuncBody \
		FinishFuncBody \
		TypecheckImportedBody \
		AddImplicitDots \
		CalcMethods \
		CheckFuncStack \
		NewFuncType \
		NewMethodType \
		NewStructType \
		TypecheckAllowed \
		Temp \
		TempAt \
		adddot1 \
		dotlist \
		addmethod \
		assignconvfn \
		assignop \
		autotmpname \
		autoexport \
		bexport.go \
		checkdupfields \
		checkembeddedtype \
		closurename \
		convertop \
		declare_typegen \
		decldepth \
		dlist \
		dotpath \
		expand0 \
		expand1 \
		expandDecl \
		fakeRecvField \
		fnpkg \
		funcStack \
		funcStackEnt \
		funcarg \
		funcarg2 \
		funcargs \
		funcargs2 \
		globClosgen \
		ifacelookdot \
		implements \
		importalias \
		importconst \
		importfunc \
		importobj \
		importsym \
		importtype \
		importvar \
		inimport \
		initname \
		isptrto \
		loadsys \
		lookdot0 \
		lookdot1 \
		makepartialcall \
		okfor \
		okforlen \
		operandType \
		slist \
		symlink \
		tointerface \
		typeSet \
		typeSet.add \
		typeSetEntry \
		typecheckExprSwitch \
		typecheckTypeSwitch \
		typecheckpartialcall \
		typecheckrange \
		typecheckrangeExpr \
		typecheckselect \
		typecheckswitch \
		vargen \
		builtin.go \
		builtin_test.go \
		const.go \
		func.go \
		iexport.go \
		iimport.go \
		mapfile_mmap.go \
		syms.go \
		target.go \
		typecheck.go \
		unsafe.go \
		universe.go \
		cmd/compile/internal/typecheck
'
rm gen.go types.go types_acc.go

sed -i '' 's/package gc/package typecheck/' mapfile_read.go mkbuiltin.go
mv mapfile_read.go ../typecheck # not part of default build
mv mkbuiltin.go ../typecheck # package main helper
mv builtin ../typecheck

cd ../typecheck
mv dcl.go dcl1.go
mv typecheck.go typecheck1.go
mv universe.go universe1.go
rf '
	# Sweep some small files into larger ones.
	# "mv sym... file1.go file.go" (after the mv file1.go file.go above)
	# lets us insert sym... at the top of file.go.
	mv okfor okforeq universe1.go universe.go
	mv DeclContext vargen dcl1.go Temp TempAt autotmpname NewMethodType dcl.go
	mv InitTodoFunc inimport decldepth TypecheckAllowed typecheck1.go typecheck.go
	mv inl.go closure.go func.go
	mv range.go select.go swt.go stmt.go
	mv Lookup loadsys LookupRuntimeFunc LookupRuntimeVar syms.go
	mv unsafe.go const.go

	mv TypecheckAssignExpr AssignExpr
	mv TypecheckExpr Expr
	mv TypecheckStmt Stmt
	mv TypecheckExprs Exprs
	mv TypecheckStmts Stmts
	mv TypecheckCall Call
	mv TypecheckCallee Callee
	mv _typecheck check
	mv TypecheckFunc Func
	mv TypecheckFuncBody FuncBody
	mv TypecheckImports AllImportedBodies
	mv TypecheckImportedBody ImportedBody
	mv TypecheckInit Init
	mv TypecheckPackage Package
'
rm gen.go go.go init.go main.go reflect.go

Change-Id: Iea6a7aaf6407d690670ec58aeb36cc0b280f80b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/279236
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:26 +00:00
Russ Cox
dac0de3748 [dev.regabi] cmd/compile: move type size calculations into package types [generated]
To break up package gc, we need to put these calculations somewhere
lower in the import graph, either an existing or new package. Package types
already needs this code and is using hacks to get it without an import cycle.
We can remove the hacks and set up for the new package gc by moving the
code into package types itself.

[git-generate]
cd src/cmd/compile/internal/gc
rf '
	# Remove old import cycle hacks in gc.
	rm TypecheckInit:/types.Widthptr =/-0,/types.Dowidth =/+0 \
		../ssa/export_test.go:/types.Dowidth =/-+
	ex {
		import "cmd/compile/internal/types"
		types.Widthptr -> Widthptr
		types.Dowidth -> dowidth
	}

	# Disable CalcSize in tests instead of base.Fatalf
	sub dowidth:/base.Fatalf\("dowidth without betypeinit"\)/ \
		// Assume this is a test. \
		return

	# Move size calculation into cmd/compile/internal/types
	mv Widthptr PtrSize
	mv Widthreg RegSize
	mv slicePtrOffset SlicePtrOffset
	mv sliceLenOffset SliceLenOffset
	mv sliceCapOffset SliceCapOffset
	mv sizeofSlice SliceSize
	mv sizeofString StringSize
	mv skipDowidthForTracing SkipSizeForTracing
	mv dowidth CalcSize
	mv checkwidth CheckSize
	mv widstruct calcStructOffset
	mv sizeCalculationDisabled CalcSizeDisabled
	mv defercheckwidth DeferCheckSize
	mv resumecheckwidth ResumeCheckSize
	mv typeptrdata PtrDataSize
	mv \
		PtrSize RegSize SlicePtrOffset SkipSizeForTracing typePos align.go PtrDataSize \
		size.go
	mv size.go cmd/compile/internal/types
'

: # Remove old import cycle hacks in types.
cd ../types
rf '
	ex {
		Widthptr -> PtrSize
		Dowidth -> CalcSize
	}
	rm Widthptr Dowidth
'

Change-Id: Ib96cdc6bda2617235480c29392ea5cfb20f60cd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/279234
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:20 +00:00
Russ Cox
527a1895d6 [dev.regabi] cmd/compile: move helpers into package ir [generated]
[git-generate]
cd src/cmd/compile/internal/gc
sed -i '' 's/TestBuiltin.*/& t.Skip("mkbuiltin needs fixing")/' builtin_test.go
gofmt -w builtin_test.go
rf '
	# Inline a few little-used constructors to avoid bringing them.
	ex {
		import "cmd/compile/internal/base"
		import "cmd/compile/internal/ir"
		import "cmd/compile/internal/types"
		import "cmd/internal/src"

		var typ *types.Type
		var sym *types.Sym
		var str string
		symfield(sym, typ) -> ir.NewField(base.Pos, sym, nil, typ)
		anonfield(typ) -> ir.NewField(base.Pos, nil, nil, typ)
		namedfield(str, typ) -> ir.NewField(base.Pos, lookup(str), nil, typ)

		var cp *ir.CallPartExpr
		callpartMethod(cp) -> cp.Method
		var n ir.Node
		callpartMethod(n) -> n.(*ir.CallPartExpr).Method

		var ns []ir.Node
		liststmt(ns) -> ir.NewBlockStmt(src.NoXPos, ns)
	}
	rm symfield anonfield namedfield liststmt callpartMethod

	mv maxStackVarSize MaxStackVarSize
	mv maxImplicitStackVarSize MaxImplicitStackVarSize
	mv smallArrayBytes MaxSmallArraySize
	mv MaxStackVarSize cfg.go

	mv nodbool NewBool
	mv nodintconst NewInt
	mv nodstr NewString
	mv NewBool NewInt NewString const.go

	mv Mpprec ConstPrec
	mv bigFloatVal BigFloat
	mv doesoverflow ConstOverflow
	mv isGoConst IsConstNode
	mv smallintconst IsSmallIntConst

	mv isZero IsZero
	mv islvalue IsAssignable
	mv staticValue StaticValue
	mv samesafeexpr SameSafeExpr
	mv checkPtr ShouldCheckPtr
	mv isReflectHeaderDataField IsReflectHeaderDataField
	mv paramNnames ParamNames
	mv methodSym MethodSym
	mv methodSymSuffix MethodSymSuffix
	mv methodExprFunc MethodExprFunc
	mv methodExprName MethodExprName
	mv IsZero IsAssignable StaticValue staticValue1 reassigned \
		IsIntrinsicCall \
		SameSafeExpr ShouldCheckPtr IsReflectHeaderDataField \
		ParamNames MethodSym MethodSymSuffix \
		MethodExprName MethodExprFunc \
		expr.go

	mv Curfn CurFunc
	mv funcsymname FuncSymName
	mv newFuncNameAt NewFuncNameAt
	mv setNodeNameFunc MarkFunc
	mv CurFunc FuncSymName NewFuncNameAt MarkFunc func.go

	mv isParamStackCopy IsParamStackCopy
	mv isParamHeapCopy IsParamHeapCopy
	mv nodfp RegFP
	mv IsParamStackCopy IsParamHeapCopy RegFP name.go

	mv hasUniquePos HasUniquePos
	mv setlineno SetPos
	mv initExpr InitExpr
	mv hasNamedResults HasNamedResults
	mv outervalue OuterValue
	mv HasNamedResults HasUniquePos SetPos InitExpr OuterValue EscNever node.go

	mv visitBottomUp VisitFuncsBottomUp # scc.go

	mv cfg.go \
		NewBool NewInt NewString \ # parts of const.go
		ConstPrec BigFloat ConstOverflow IsConstNode IsSmallIntConst \
		expr.go func.go name.go node.go scc.go \
		cmd/compile/internal/ir

'

Change-Id: I13402c5a2cedbf78d993a1eae2940718f23ac166
Reviewed-on: https://go-review.googlesource.com/c/go/+/279421
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:14 +00:00
Russ Cox
65c4c6dfb2 [dev.regabi] cmd/compile: group known symbols, packages, names [generated]
There are a handful of pre-computed magic symbols known by
package gc, and we need a place to store them.

If we keep them together, the need for type *ir.Name means that
package ir is the lowest package in the import hierarchy that they
can go in. And package ir needs gopkg for methodSymSuffix
(in a later CL), so they can't go any higher either, at least not all together.
So package ir it is.

Rather than dump them all into the top-level package ir
namespace, however, we introduce global structs, Syms, Pkgs, and Names,
and make the known symbols, packages, and names fields of those.

[git-generate]
cd src/cmd/compile/internal/gc

rf '
	add go.go:$ \
		// Names holds known names. \
		var Names struct{} \
		\
		// Syms holds known symbols. \
		var Syms struct {} \
		\
		// Pkgs holds known packages. \
		var Pkgs struct {} \

	mv staticuint64s Names.Staticuint64s
	mv zerobase Names.Zerobase

	mv assertE2I Syms.AssertE2I
	mv assertE2I2 Syms.AssertE2I2
	mv assertI2I Syms.AssertI2I
	mv assertI2I2 Syms.AssertI2I2
	mv deferproc Syms.Deferproc
	mv deferprocStack Syms.DeferprocStack
	mv Deferreturn Syms.Deferreturn
	mv Duffcopy Syms.Duffcopy
	mv Duffzero Syms.Duffzero
	mv gcWriteBarrier Syms.GCWriteBarrier
	mv goschedguarded Syms.Goschedguarded
	mv growslice Syms.Growslice
	mv msanread Syms.Msanread
	mv msanwrite Syms.Msanwrite
	mv msanmove Syms.Msanmove
	mv newobject Syms.Newobject
	mv newproc Syms.Newproc
	mv panicdivide Syms.Panicdivide
	mv panicshift Syms.Panicshift
	mv panicdottypeE Syms.PanicdottypeE
	mv panicdottypeI Syms.PanicdottypeI
	mv panicnildottype Syms.Panicnildottype
	mv panicoverflow Syms.Panicoverflow
	mv raceread Syms.Raceread
	mv racereadrange Syms.Racereadrange
	mv racewrite Syms.Racewrite
	mv racewriterange Syms.Racewriterange
	mv SigPanic Syms.SigPanic
	mv typedmemclr Syms.Typedmemclr
	mv typedmemmove Syms.Typedmemmove
	mv Udiv Syms.Udiv
	mv writeBarrier Syms.WriteBarrier
	mv zerobaseSym Syms.Zerobase
	mv arm64HasATOMICS Syms.ARM64HasATOMICS
	mv armHasVFPv4 Syms.ARMHasVFPv4
	mv x86HasFMA Syms.X86HasFMA
	mv x86HasPOPCNT Syms.X86HasPOPCNT
	mv x86HasSSE41 Syms.X86HasSSE41
	mv WasmDiv Syms.WasmDiv
	mv WasmMove Syms.WasmMove
	mv WasmZero Syms.WasmZero
	mv WasmTruncS Syms.WasmTruncS
	mv WasmTruncU Syms.WasmTruncU

	mv gopkg Pkgs.Go
	mv itabpkg Pkgs.Itab
	mv itablinkpkg Pkgs.Itablink
	mv mappkg Pkgs.Map
	mv msanpkg Pkgs.Msan
	mv racepkg Pkgs.Race
	mv Runtimepkg Pkgs.Runtime
	mv trackpkg Pkgs.Track
	mv unsafepkg Pkgs.Unsafe

	mv Names Syms Pkgs symtab.go
	mv symtab.go cmd/compile/internal/ir
'

Change-Id: Ic143862148569a3bcde8e70b26d75421aa2d00f3
Reviewed-on: https://go-review.googlesource.com/c/go/+/279235
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:07 +00:00
Russ Cox
9ee309255a [dev.regabi] cmd/compile: move helpers into package types [generated]
[git-generate]
cd src/cmd/compile/internal/gc
rf '
	# Type hash (formatting).
	mv typehash TypeHash
	mv TypeHash fmt.go

	# Method sorting.
	mv methcmp MethodsByName
	mv MethodsByName MethodsByName.Len MethodsByName.Swap \
		MethodsByName.Less sort.go

	# Move version check into types.
	# A little surprising, but its keyed off the types.Pkg.
	ex {
		import "cmd/compile/internal/types"
		var p *types.Pkg
		var major, minor int
		langSupported(major, minor, p) -> AllowsGoVersion(p, major, minor)
	}
	rm langSupported
	mv checkLang ParseLangFlag
	mv lang langWant AllowsGoVersion ParseLangFlag \
		parseLang currentLang goVersionRE goversion.go

	mv testdclstack CheckDclstack
	mv CheckDclstack scope.go

	mv algtype1 AlgType
	mv isComplex IsComplex
	mv isFloat IsFloat
	mv isInt IsInt
	mv issimple IsSimple
	mv okforcmp IsOrdered
	mv floatForComplex FloatForComplex
	mv complexForFloat ComplexForFloat
	mv isdirectiface IsDirectIface
	mv isifacemethod IsInterfaceMethod
	mv isMethodApplicable IsMethodApplicable
	mv ispaddedfield IsPaddedField
	mv isRuntimePkg IsRuntimePkg
	mv isReflectPkg IsReflectPkg
	mv methtype ReceiverBaseType
	mv typesymname TypeSymName
	mv typesym TypeSym
	mv typeLookup TypeSymLookup
	mv IsAlias IsDotAlias
	mv isreflexive IsReflexive
	mv simtype SimType

	# The type1.go here is to avoid an undiagnosed bug in rf
	# that does not get the follow-up typechecking right if we
	# move directly to type.go during the mv into package types below.
	mv \
		IsInt IsOrdered IsReflexive \
		IsDirectIface IsInterfaceMethod IsMethodApplicable IsPaddedField \
		IsRuntimePkg IsReflectPkg ReceiverBaseType \
		FloatForComplex ComplexForFloat \
		TypeSym TypeSymLookup TypeSymName \
		typepkg SimType \
		type1.go

	# The alg1.go here is because we are only moving part of alg.go.
	mv typeHasNoAlg TypeHasNoAlg
	mv AlgKind ANOEQ AlgType TypeHasNoAlg IsComparable IncomparableField IsPaddedField alg1.go

	mv IsDotAlias pkg.go

	mv alg1.go algkind_string.go fmt.go goversion.go pkg.go \
		CheckDclstack \ # scope.go
		sort.go type1.go \
		cmd/compile/internal/types
'
cd ../types
rf '
	mv IsDclstackValid isDclstackValid
	mv alg1.go alg.go
	mv type1.go type.go
'

Change-Id: I8bd53b21c7bdd1770e1b525de32f136833e84c9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/279307
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:38:01 +00:00
Russ Cox
ead4957892 [dev.regabi] cmd/compile: move helpers into package base [generated]
[git-generate]
cd src/cmd/compile/internal/gc
rf '
	# Move EnableTrace constant into base, with the other flags.
	mv enableTrace EnableTrace
	mv EnableTrace base.go

	# Move compilation checks to base.
	mv instrumenting Instrumenting
	mv ispkgin Compiling
	mv omit_pkgs NoInstrumentPkgs
	mv norace_inst_pkgs NoRacePkgs
	mv Instrumenting Compiling NoInstrumentPkgs NoRacePkgs base.go

	# Move AutogeneratedPos to package base, next to Pos.
	mv autogeneratedPos AutogeneratedPos
	mv AutogeneratedPos print.go

	mv timings Timer

	mv base.go print.go timings.go cmd/compile/internal/base
'
cd ../base
rf '
	mv Instrumenting Flag.Cfg.Instrumenting
'

Change-Id: I534437fa75857d31531fc499d833c9930c0a06d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/279420
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:37:55 +00:00
Russ Cox
440308ffd7 [dev.regabi] cmd/compile: simplify Nodes usage [generated]
Now that Nodes is a slice, most of the methods can be removed
in favor of direct slice operations, reducing the new API that must
be understood to:

	Copy
	Take
	Append
	Prepend
	Format

Passes buildall w/ toolstash -cmp.

[git-generate]
cd src/cmd/compile/internal/ir
rf '
ex . ../gc {
	var ns Nodes
	var pns *Nodes
	var n, n2, n3 Node
	var i int
	var slice []Node

	ns.Len() -> len(ns)
	ns.Slice() -> ns
	ns.First() -> ns[0]
	ns.Second() -> ns[1]
	ns.Index(i) -> ns[i]
	ns.Addr(i) -> &ns[i]
	ns.SetIndex(i, n) -> ns[i] = n
	ns.SetFirst(n) -> ns[0] = n
	ns.SetSecond(n) -> ns[1] = n
	ns.Set1(n) -> ns = []Node{n}
	ns.Set2(n, n2) -> ns = []Node{n, n2}
	ns.Set3(n, n2, n3) -> ns = []Node{n, n2, n3}
	ns.Set1(n) -> ns = []Node{n}
	ns.Set2(n, n2) -> ns = []Node{n, n2}
	ns.Set3(n, n2, n3) -> ns = []Node{n, n2, n3}
	AsNodes(slice) -> Nodes(slice)
	ns.AppendNodes(pns) -> ns.Append(pns.Take()...)
	ns.MoveNodes(pns) -> ns = pns.Take()
}

rm \
	Nodes.Len Nodes.Slice \
	Nodes.First Nodes.Second Nodes.Index Nodes.Addr \
	Nodes.SetIndex Nodes.SetFirst Nodes.SetSecond \
	Nodes.Set1 Nodes.Set2 Nodes.Set3 \
	AsNodes \
	Nodes.AppendNodes Nodes.MoveNodes
'

Change-Id: Iee86434ced52e67861c3fa71bdd6d994a8cba735
Reviewed-on: https://go-review.googlesource.com/c/go/+/277936
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:37:48 +00:00
Russ Cox
f9d373720e [dev.regabi] cmd/compile: remove Left, Right etc methods [generated]
Now that the generic graph structure methods - Left, Right, and so on -
have been removed from the Node interface, each implementation's uses
can be replaced with direct field access, using more specific names,
and the methods themselves can be deleted.

Passes buildall w/ toolstash -cmp.

[git-generate]

cd src/cmd/compile/internal/ir
rf '
	mv Func.iota Func.Iota_
	mv Name.fn Name.Func_
'

cd ../gc
rf '
ex . ../ir {
        import "cmd/compile/internal/ir"
        import "cmd/compile/internal/types"

        var ns ir.Nodes
        var b bool
        var i64 int64
        var n ir.Node
        var op ir.Op
        var sym *types.Sym
        var class ir.Class

        var decl *ir.Decl
        decl.Left()         -> decl.X
        decl.SetLeft(n)     -> decl.X = n

        var asl *ir.AssignListStmt
        asl.List()          -> asl.Lhs
        asl.PtrList()       -> &asl.Lhs
        asl.SetList(ns)     -> asl.Lhs = ns
        asl.Rlist()         -> asl.Rhs
        asl.PtrRlist()      -> &asl.Rhs
        asl.SetRlist(ns)    -> asl.Rhs = ns
        asl.Colas()         -> asl.Def
        asl.SetColas(b)     -> asl.Def = b

        var as *ir.AssignStmt
        as.Left()           -> as.X
        as.SetLeft(n)       -> as.X = n
        as.Right()          -> as.Y
        as.SetRight(n)      -> as.Y = n
        as.Colas()          -> as.Def
        as.SetColas(b)      -> as.Def = b

        var ao *ir.AssignOpStmt
        ao.Left()           -> ao.X
        ao.SetLeft(n)       -> ao.X = n
        ao.Right()          -> ao.Y
        ao.SetRight(n)      -> ao.Y = n
        ao.SubOp()          -> ao.AsOp
        ao.SetSubOp(op)     -> ao.AsOp = op
        ao.Implicit()       -> ao.IncDec
        ao.SetImplicit(b)   -> ao.IncDec = b

        var bl *ir.BlockStmt
        bl.List()           -> bl.List_
        bl.PtrList()        -> &bl.List_
        bl.SetList(ns)      -> bl.List_ = ns

        var br *ir.BranchStmt
        br.Sym()            -> br.Label
        br.SetSym(sym)      -> br.Label = sym

        var cas *ir.CaseStmt
        cas.List()          -> cas.List_
        cas.PtrList()       -> &cas.List_
        cas.SetList(ns)     -> cas.List_ = ns
        cas.Body()          -> cas.Body_
        cas.PtrBody()       -> &cas.Body_
        cas.SetBody(ns)     -> cas.Body_ = ns
        cas.Rlist()         -> cas.Vars
        cas.PtrRlist()      -> &cas.Vars
        cas.SetRlist(ns)    -> cas.Vars = ns
        cas.Left()          -> cas.Comm
        cas.SetLeft(n)      -> cas.Comm = n

        var fr *ir.ForStmt
        fr.Sym()            -> fr.Label
        fr.SetSym(sym)      -> fr.Label = sym
        fr.Left()           -> fr.Cond
        fr.SetLeft(n)       -> fr.Cond = n
        fr.Right()          -> fr.Post
        fr.SetRight(n)      -> fr.Post = n
        fr.Body()           -> fr.Body_
        fr.PtrBody()        -> &fr.Body_
        fr.SetBody(ns)      -> fr.Body_ = ns
        fr.List()           -> fr.Late
        fr.PtrList()        -> &fr.Late
        fr.SetList(ns)      -> fr.Late = ns
        fr.HasBreak()       -> fr.HasBreak_
        fr.SetHasBreak(b)   -> fr.HasBreak_ = b

        var gs *ir.GoDeferStmt
        gs.Left()           -> gs.Call
        gs.SetLeft(n)       -> gs.Call = n

        var ifs *ir.IfStmt
        ifs.Left()          -> ifs.Cond
        ifs.SetLeft(n)      -> ifs.Cond = n
        ifs.Body()          -> ifs.Body_
        ifs.PtrBody()       -> &ifs.Body_
        ifs.SetBody(ns)     -> ifs.Body_ = ns
        ifs.Rlist()         -> ifs.Else
        ifs.PtrRlist()      -> &ifs.Else
        ifs.SetRlist(ns)    -> ifs.Else = ns
        ifs.Likely()        -> ifs.Likely_
        ifs.SetLikely(b)    -> ifs.Likely_ = b

        var im *ir.InlineMarkStmt
        im.Offset()         -> im.Index
        im.SetOffset(i64)   -> im.Index = i64

        var lab *ir.LabelStmt
        lab.Sym()           -> lab.Label
        lab.SetSym(sym)     -> lab.Label = sym

        var rng *ir.RangeStmt
        rng.Sym()           -> rng.Label
        rng.SetSym(sym)     -> rng.Label = sym
        rng.Right()         -> rng.X
        rng.SetRight(n)     -> rng.X = n
        rng.Body()          -> rng.Body_
        rng.PtrBody()       -> &rng.Body_
        rng.SetBody(ns)     -> rng.Body_ = ns
        rng.List()          -> rng.Vars
        rng.PtrList()       -> &rng.Vars
        rng.SetList(ns)     -> rng.Vars = ns
        rng.HasBreak()      -> rng.HasBreak_
        rng.SetHasBreak(b)  -> rng.HasBreak_ = b
        rng.Colas()         -> rng.Def
        rng.SetColas(b)     -> rng.Def = b

        var ret *ir.ReturnStmt
        ret.List()          -> ret.Results
        ret.PtrList()       -> &ret.Results
        ret.SetList(ns)     -> ret.Results = ns

        var sel *ir.SelectStmt
        sel.List()          -> sel.Cases
        sel.PtrList()       -> &sel.Cases
        sel.SetList(ns)     -> sel.Cases = ns
        sel.Sym()           -> sel.Label
        sel.SetSym(sym)     -> sel.Label = sym
        sel.HasBreak()      -> sel.HasBreak_
        sel.SetHasBreak(b)  -> sel.HasBreak_ = b
        sel.Body()          -> sel.Compiled
        sel.PtrBody()       -> &sel.Compiled
        sel.SetBody(ns)     -> sel.Compiled = ns

        var send *ir.SendStmt
        send.Left()         -> send.Chan
        send.SetLeft(n)     -> send.Chan = n
        send.Right()        -> send.Value
        send.SetRight(n)    -> send.Value = n

        var sw *ir.SwitchStmt
        sw.Left()           -> sw.Tag
        sw.SetLeft(n)       -> sw.Tag = n
        sw.List()           -> sw.Cases
        sw.PtrList()        -> &sw.Cases
        sw.SetList(ns)      -> sw.Cases = ns
        sw.Body()           -> sw.Compiled
        sw.PtrBody()        -> &sw.Compiled
        sw.SetBody(ns)      -> sw.Compiled = ns
        sw.Sym()            -> sw.Label
        sw.SetSym(sym)      -> sw.Label = sym
        sw.HasBreak()       -> sw.HasBreak_
        sw.SetHasBreak(b)   -> sw.HasBreak_ = b

        var tg *ir.TypeSwitchGuard
        tg.Left()           -> tg.Tag
        tg.SetLeft(nil)     -> tg.Tag = nil
        tg.SetLeft(n)       -> tg.Tag = n.(*ir.Ident)
        tg.Right()          -> tg.X
        tg.SetRight(n)      -> tg.X = n

        var adds *ir.AddStringExpr
        adds.List()         -> adds.List_
        adds.PtrList()      -> &adds.List_
        adds.SetList(ns)    -> adds.List_ = ns

        var addr *ir.AddrExpr
        addr.Left()         -> addr.X
        addr.SetLeft(n)     -> addr.X = n
        addr.Right()        -> addr.Alloc
        addr.SetRight(n)    -> addr.Alloc = n

        var bin *ir.BinaryExpr
        bin.Left()          -> bin.X
        bin.SetLeft(n)      -> bin.X = n
        bin.Right()         -> bin.Y
        bin.SetRight(n)     -> bin.Y = n

        var log *ir.LogicalExpr
        log.Left()          -> log.X
        log.SetLeft(n)      -> log.X = n
        log.Right()         -> log.Y
        log.SetRight(n)     -> log.Y = n

        var call *ir.CallExpr
        call.Left()         -> call.X
        call.SetLeft(n)     -> call.X = n
        call.List()         -> call.Args
        call.PtrList()      -> &call.Args
        call.SetList(ns)    -> call.Args = ns
        call.Rlist()        -> call.Rargs
        call.PtrRlist()     -> &call.Rargs
        call.SetRlist(ns)   -> call.Rargs = ns
        call.IsDDD()        -> call.DDD
        call.SetIsDDD(b)    -> call.DDD = b
        call.NoInline()     -> call.NoInline_
        call.SetNoInline(b) -> call.NoInline_ = b
        call.Body()         -> call.Body_
        call.PtrBody()      -> &call.Body_
        call.SetBody(ns)    -> call.Body_ = ns

        var cp *ir.CallPartExpr
        cp.Func()           -> cp.Func_
        cp.Left()           -> cp.X
        cp.SetLeft(n)       -> cp.X = n
        cp.Sym()            -> cp.Method.Sym

        var clo *ir.ClosureExpr
        clo.Func()          -> clo.Func_

        var cr *ir.ClosureReadExpr
        cr.Offset()         -> cr.Offset_

        var cl *ir.CompLitExpr
        cl.Right()          -> cl.Ntype
        cl.SetRight(nil)    -> cl.Ntype = nil
        cl.SetRight(n)      -> cl.Ntype = ir.Node(n).(ir.Ntype)
        cl.List()           -> cl.List_
        cl.PtrList()        -> &cl.List_
        cl.SetList(ns)      -> cl.List_ = ns

        var conv *ir.ConvExpr
        conv.Left()         -> conv.X
        conv.SetLeft(n)     -> conv.X = n

        var ix *ir.IndexExpr
        ix.Left()           -> ix.X
        ix.SetLeft(n)       -> ix.X = n
        ix.Right()          -> ix.Index
        ix.SetRight(n)      -> ix.Index = n
        ix.IndexMapLValue() -> ix.Assigned
        ix.SetIndexMapLValue(b) -> ix.Assigned = b

        var kv *ir.KeyExpr
        kv.Left()           -> kv.Key
        kv.SetLeft(n)       -> kv.Key = n
        kv.Right()          -> kv.Value
        kv.SetRight(n)      -> kv.Value = n

        var sk *ir.StructKeyExpr
        sk.Sym()            -> sk.Field
        sk.SetSym(sym)      -> sk.Field = sym
        sk.Left()           -> sk.Value
        sk.SetLeft(n)       -> sk.Value = n
        sk.Offset()         -> sk.Offset_
        sk.SetOffset(i64)   -> sk.Offset_ = i64

        var ic *ir.InlinedCallExpr
        ic.Body()           -> ic.Body_
        ic.PtrBody()        -> &ic.Body_
        ic.SetBody(ns)      -> ic.Body_ = ns
        ic.Rlist()          -> ic.ReturnVars
        ic.PtrRlist()       -> &ic.ReturnVars
        ic.SetRlist(ns)     -> ic.ReturnVars = ns

        var mak *ir.MakeExpr
        mak.Left()          -> mak.Len
        mak.SetLeft(n)      -> mak.Len = n
        mak.Right()         -> mak.Cap
        mak.SetRight(n)     -> mak.Cap = n

        var par *ir.ParenExpr
        par.Left()          -> par.X
        par.SetLeft(n)      -> par.X = n

        var res *ir.ResultExpr
        res.Offset()        -> res.Offset_
        res.SetOffset(i64)  -> res.Offset_ = i64

        var dot *ir.SelectorExpr
        dot.Left()          -> dot.X
        dot.SetLeft(n)      -> dot.X = n
        dot.Sym()           -> dot.Sel
        dot.SetSym(sym)     -> dot.Sel = sym
        dot.Offset()        -> dot.Offset_
        dot.SetOffset(i64)  -> dot.Offset_ = i64

        var sl *ir.SliceExpr
        sl.Left()           -> sl.X
        sl.SetLeft(n)       -> sl.X = n
        sl.List()           -> sl.List_
        sl.PtrList()        -> &sl.List_
        sl.SetList(ns)      -> sl.List_ = ns

        var sh *ir.SliceHeaderExpr
        sh.Left()           -> sh.Ptr
        sh.SetLeft(n)       -> sh.Ptr = n
        sh.List()           -> sh.LenCap_
        sh.PtrList()        -> &sh.LenCap_
        sh.SetList(ns)      -> sh.LenCap_ = ns

        var st *ir.StarExpr
        st.Left()           -> st.X
        st.SetLeft(n)       -> st.X = n

        var ta *ir.TypeAssertExpr
        ta.Left()           -> ta.X
        ta.SetLeft(n)       -> ta.X = n
        ta.Right()          -> ta.Ntype
        ta.SetRight(n)    -> ta.Ntype = n
        ta.List()           -> ta.Itab
        ta.PtrList()        -> &ta.Itab
        ta.SetList(ns)      -> ta.Itab = ns

        var u *ir.UnaryExpr
        u.Left()            -> u.X
        u.SetLeft(n)        -> u.X = n

        var fn *ir.Func
        fn.Body()           -> fn.Body_
        fn.PtrBody()        -> &fn.Body_
        fn.SetBody(ns)      -> fn.Body_ = ns
        fn.Iota()           -> fn.Iota_
        fn.SetIota(i64)     -> fn.Iota_ = i64
        fn.Func()           -> fn

        var nam *ir.Name
        nam.SubOp()         -> nam.BuiltinOp
        nam.SetSubOp(op)    -> nam.BuiltinOp = op
        nam.Class()         -> nam.Class_
        nam.SetClass(class) -> nam.Class_ = class
        nam.Func()          -> nam.Func_
        nam.Offset()        -> nam.Offset_
        nam.SetOffset(i64)  -> nam.Offset_ = i64
}

ex . ../ir {
        import "cmd/compile/internal/ir"

        var n ir.Nodes

        (&n).Append         -> n.Append
        (&n).AppendNodes    -> n.AppendNodes
        (&n).MoveNodes      -> n.MoveNodes
        (&n).Prepend        -> n.Prepend
        (&n).Set            -> n.Set
        (&n).Set1           -> n.Set1
        (&n).Set2           -> n.Set2
        (&n).Set3           -> n.Set3

        var ntype ir.Ntype
        ir.Node(ntype).(ir.Ntype) -> ntype
}
'

cd ../ir
rf '
rm \
        Decl.Left Decl.SetLeft \
        AssignListStmt.List AssignListStmt.PtrList AssignListStmt.SetList \
        AssignListStmt.Rlist AssignListStmt.PtrRlist AssignListStmt.SetRlist \
        AssignListStmt.Colas AssignListStmt.SetColas \
        AssignStmt.Left AssignStmt.SetLeft \
        AssignStmt.Right AssignStmt.SetRight \
        AssignStmt.Colas AssignStmt.SetColas \
        AssignOpStmt.Left AssignOpStmt.SetLeft \
        AssignOpStmt.Right AssignOpStmt.SetRight \
        AssignOpStmt.SubOp AssignOpStmt.SetSubOp \
        AssignOpStmt.Implicit AssignOpStmt.SetImplicit \
        BlockStmt.List BlockStmt.PtrList BlockStmt.SetList \
        BranchStmt.SetSym \
        CaseStmt.List CaseStmt.PtrList CaseStmt.SetList \
        CaseStmt.Body CaseStmt.PtrBody CaseStmt.SetBody \
        CaseStmt.Rlist CaseStmt.PtrRlist CaseStmt.SetRlist \
        CaseStmt.Left CaseStmt.SetLeft \
        ForStmt.Left ForStmt.SetLeft \
        ForStmt.Right ForStmt.SetRight \
        ForStmt.Body ForStmt.PtrBody ForStmt.SetBody \
        ForStmt.List ForStmt.PtrList ForStmt.SetList \
        ForStmt.HasBreak ForStmt.SetHasBreak \
        ForStmt.Sym ForStmt.SetSym \
        GoDeferStmt.Left GoDeferStmt.SetLeft \
        IfStmt.Left IfStmt.SetLeft \
        IfStmt.Body IfStmt.PtrBody IfStmt.SetBody \
        IfStmt.Rlist IfStmt.PtrRlist IfStmt.SetRlist \
        IfStmt.Likely IfStmt.SetLikely \
        LabelStmt.SetSym \
        RangeStmt.Right RangeStmt.SetRight \
        RangeStmt.Body RangeStmt.PtrBody RangeStmt.SetBody \
        RangeStmt.List RangeStmt.PtrList RangeStmt.SetList \
        RangeStmt.HasBreak RangeStmt.SetHasBreak \
        RangeStmt.Colas RangeStmt.SetColas \
        RangeStmt.Sym RangeStmt.SetSym \
        ReturnStmt.List ReturnStmt.PtrList ReturnStmt.SetList \
        SelectStmt.List SelectStmt.PtrList SelectStmt.SetList \
        SelectStmt.HasBreak SelectStmt.SetHasBreak \
        SelectStmt.Body SelectStmt.PtrBody SelectStmt.SetBody \
        SelectStmt.Sym SelectStmt.SetSym \
        SendStmt.Left SendStmt.SetLeft \
        SendStmt.Right SendStmt.SetRight \
        SwitchStmt.Left SwitchStmt.SetLeft \
        SwitchStmt.List SwitchStmt.PtrList SwitchStmt.SetList \
        SwitchStmt.Body SwitchStmt.PtrBody SwitchStmt.SetBody \
        SwitchStmt.HasBreak SwitchStmt.SetHasBreak \
        SwitchStmt.Sym SwitchStmt.SetSym \
        TypeSwitchGuard.Left TypeSwitchGuard.SetLeft \
        TypeSwitchGuard.Right TypeSwitchGuard.SetRight \
        AddStringExpr.List AddStringExpr.PtrList AddStringExpr.SetList \
        AddrExpr.Left AddrExpr.SetLeft \
        AddrExpr.Right AddrExpr.SetRight \
        BinaryExpr.Left BinaryExpr.SetLeft \
        BinaryExpr.Right BinaryExpr.SetRight \
        LogicalExpr.Left LogicalExpr.SetLeft \
        LogicalExpr.Right LogicalExpr.SetRight \
        CallExpr.Left CallExpr.SetLeft \
        CallExpr.List CallExpr.PtrList CallExpr.SetList \
        CallExpr.Rlist CallExpr.PtrRlist CallExpr.SetRlist \
        CallExpr.NoInline CallExpr.SetNoInline \
        CallExpr.Body CallExpr.PtrBody CallExpr.SetBody \
        CallExpr.IsDDD CallExpr.SetIsDDD \
        CallPartExpr.Left CallPartExpr.SetLeft \
        ClosureReadExpr.Offset \
        ClosureReadExpr.Type \ # provided by miniExpr already
        CompLitExpr.Right CompLitExpr.SetRight \
        CompLitExpr.List CompLitExpr.PtrList CompLitExpr.SetList \
        ConvExpr.Left ConvExpr.SetLeft \
        IndexExpr.Left IndexExpr.SetLeft \
        IndexExpr.Right IndexExpr.SetRight \
        IndexExpr.IndexMapLValue IndexExpr.SetIndexMapLValue \
        KeyExpr.Left KeyExpr.SetLeft \
        KeyExpr.Right KeyExpr.SetRight \
        StructKeyExpr.Left StructKeyExpr.SetLeft \
        StructKeyExpr.Offset StructKeyExpr.SetOffset \
        StructKeyExpr.SetSym \
        InlinedCallExpr.Body InlinedCallExpr.PtrBody InlinedCallExpr.SetBody \
        InlinedCallExpr.Rlist InlinedCallExpr.PtrRlist InlinedCallExpr.SetRlist \
        MakeExpr.Left MakeExpr.SetLeft \
        MakeExpr.Right MakeExpr.SetRight \
        MethodExpr.Left MethodExpr.SetLeft \
        MethodExpr.Right MethodExpr.SetRight \
        MethodExpr.Offset MethodExpr.SetOffset \
        MethodExpr.Class MethodExpr.SetClass \
        ParenExpr.Left ParenExpr.SetLeft \
        ResultExpr.Offset ResultExpr.SetOffset \
        ReturnStmt.IsDDD \
        SelectorExpr.Left SelectorExpr.SetLeft \
        SelectorExpr.Offset SelectorExpr.SetOffset \
        SelectorExpr.SetSym \
        SliceExpr.Left SliceExpr.SetLeft \
        SliceExpr.List SliceExpr.PtrList SliceExpr.SetList \
        SliceHeaderExpr.Left SliceHeaderExpr.SetLeft \
        SliceHeaderExpr.List SliceHeaderExpr.PtrList SliceHeaderExpr.SetList \
        StarExpr.Left StarExpr.SetLeft \
        TypeAssertExpr.Left TypeAssertExpr.SetLeft \
        TypeAssertExpr.Right TypeAssertExpr.SetRight \
        TypeAssertExpr.List TypeAssertExpr.PtrList TypeAssertExpr.SetList \
        UnaryExpr.Left UnaryExpr.SetLeft \
        Func.Body Func.PtrBody Func.SetBody \
        Func.Iota Func.SetIota \
        CallPartExpr.Func ClosureExpr.Func Func.Func Name.Func \

mv BlockStmt.List_ BlockStmt.List
mv CaseStmt.List_ CaseStmt.List
mv CaseStmt.Body_ CaseStmt.Body
mv ForStmt.Body_ ForStmt.Body
mv ForStmt.HasBreak_ ForStmt.HasBreak
mv Func.Iota_ Func.Iota
mv IfStmt.Body_ IfStmt.Body
mv IfStmt.Likely_ IfStmt.Likely
mv RangeStmt.Body_ RangeStmt.Body
mv RangeStmt.HasBreak_ RangeStmt.HasBreak
mv SelectStmt.HasBreak_ SelectStmt.HasBreak
mv SwitchStmt.HasBreak_ SwitchStmt.HasBreak
mv AddStringExpr.List_ AddStringExpr.List
mv CallExpr.NoInline_ CallExpr.NoInline
mv CallExpr.Body_ CallExpr.Body # TODO what is this?
mv CallExpr.DDD CallExpr.IsDDD
mv ClosureReadExpr.Offset_ ClosureReadExpr.Offset
mv CompLitExpr.List_ CompLitExpr.List
mv StructKeyExpr.Offset_ StructKeyExpr.Offset
mv InlinedCallExpr.Body_ InlinedCallExpr.Body
mv ResultExpr.Offset_ ResultExpr.Offset
mv SelectorExpr.Offset_ SelectorExpr.Offset
mv SliceExpr.List_ SliceExpr.List
mv SliceHeaderExpr.LenCap_ SliceHeaderExpr.LenCap
mv Func.Body_ Func.Body
mv CallPartExpr.Func_ CallPartExpr.Func
mv ClosureExpr.Func_ ClosureExpr.Func
mv Name.Func_ Name.Func
'

Change-Id: Ia2ee59649674f83eb123e63fda7a7781cf91cc56
Reviewed-on: https://go-review.googlesource.com/c/go/+/277935
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:37:41 +00:00
Russ Cox
14d667341f [dev.regabi] cmd/compile: remove Node.Left etc [generated]
This automated CL adds type assertions on the true branches of
n.Op() equality tests, to redeclare n with a more specific type, when
it is safe to do so. (That is, when n is not reassigned with a more
general type, when n is not reassigned and then used outside the
scope, and so on.) All the "unsafe" times that the automated tool
would avoid have been removed or rewritten in earlier CLs, so that
after this CL and the next one, which removes the use of ir.Nod,
every use of the Left, Right, and so on methods is done using concrete
types, never the Node interface.

Having done that, the CL locks in the progress by deleting many of
the access methods, including Left, SetLeft and so on, from the
Node interface.

There are still uses of Name, Func, Sym, some of the tracking
bits, and a few other miscellaneous fields, but all the main access
methods are gone from the Node interface. The others will be cleaned
up in smaller CLs.

Passes buildall w/ toolstash -cmp.

[git-generate]
cd src/cmd/compile/internal/gc
rf 'typeassert {
        import "cmd/compile/internal/ir"
        var n ir.Node

        n.Op() == ir.OADD -> n.(*ir.BinaryExpr)
        n.Op() == ir.OADDR -> n.(*ir.AddrExpr)
        n.Op() == ir.OADDSTR -> n.(*ir.AddStringExpr)
        n.Op() == ir.OALIGNOF -> n.(*ir.UnaryExpr)
        n.Op() == ir.OAND -> n.(*ir.BinaryExpr)
        n.Op() == ir.OANDAND -> n.(*ir.LogicalExpr)
        n.Op() == ir.OANDNOT -> n.(*ir.BinaryExpr)
        n.Op() == ir.OAPPEND -> n.(*ir.CallExpr)
        n.Op() == ir.OARRAYLIT -> n.(*ir.CompLitExpr)
        n.Op() == ir.OAS -> n.(*ir.AssignStmt)
        n.Op() == ir.OAS2 -> n.(*ir.AssignListStmt)
        n.Op() == ir.OAS2DOTTYPE -> n.(*ir.AssignListStmt)
        n.Op() == ir.OAS2FUNC -> n.(*ir.AssignListStmt)
        n.Op() == ir.OAS2MAPR -> n.(*ir.AssignListStmt)
        n.Op() == ir.OAS2RECV -> n.(*ir.AssignListStmt)
        n.Op() == ir.OASOP -> n.(*ir.AssignOpStmt)
        n.Op() == ir.OBITNOT -> n.(*ir.UnaryExpr)
        n.Op() == ir.OBLOCK -> n.(*ir.BlockStmt)
        n.Op() == ir.OBREAK -> n.(*ir.BranchStmt)
        n.Op() == ir.OBYTES2STR -> n.(*ir.ConvExpr)
        n.Op() == ir.OBYTES2STRTMP -> n.(*ir.ConvExpr)
        n.Op() == ir.OCALL -> n.(*ir.CallExpr)
        n.Op() == ir.OCALLFUNC -> n.(*ir.CallExpr)
        n.Op() == ir.OCALLINTER -> n.(*ir.CallExpr)
        n.Op() == ir.OCALLMETH -> n.(*ir.CallExpr)
        n.Op() == ir.OCALLPART -> n.(*ir.CallPartExpr)
        n.Op() == ir.OCAP -> n.(*ir.UnaryExpr)
        n.Op() == ir.OCASE -> n.(*ir.CaseStmt)
        n.Op() == ir.OCFUNC -> n.(*ir.UnaryExpr)
        n.Op() == ir.OCHECKNIL -> n.(*ir.UnaryExpr)
        n.Op() == ir.OCLOSE -> n.(*ir.UnaryExpr)
        n.Op() == ir.OCOMPLEX -> n.(*ir.BinaryExpr)
        n.Op() == ir.OCOMPLIT -> n.(*ir.CompLitExpr)
        n.Op() == ir.OCONTINUE -> n.(*ir.BranchStmt)
        n.Op() == ir.OCONV -> n.(*ir.ConvExpr)
        n.Op() == ir.OCONVIFACE -> n.(*ir.ConvExpr)
        n.Op() == ir.OCONVNOP -> n.(*ir.ConvExpr)
        n.Op() == ir.OCOPY -> n.(*ir.BinaryExpr)
        n.Op() == ir.ODCL -> n.(*ir.Decl)
        n.Op() == ir.ODCLCONST -> n.(*ir.Decl)
        n.Op() == ir.ODCLFUNC -> n.(*ir.Func)
        n.Op() == ir.ODCLTYPE -> n.(*ir.Decl)
        n.Op() == ir.ODEFER -> n.(*ir.GoDeferStmt)
        n.Op() == ir.ODELETE -> n.(*ir.CallExpr)
        n.Op() == ir.ODEREF -> n.(*ir.StarExpr)
        n.Op() == ir.ODIV -> n.(*ir.BinaryExpr)
        n.Op() == ir.ODOT -> n.(*ir.SelectorExpr)
        n.Op() == ir.ODOTINTER -> n.(*ir.SelectorExpr)
        n.Op() == ir.ODOTMETH -> n.(*ir.SelectorExpr)
        n.Op() == ir.ODOTPTR -> n.(*ir.SelectorExpr)
        n.Op() == ir.ODOTTYPE -> n.(*ir.TypeAssertExpr)
        n.Op() == ir.ODOTTYPE2 -> n.(*ir.TypeAssertExpr)
        n.Op() == ir.OEFACE -> n.(*ir.BinaryExpr)
        n.Op() == ir.OEQ -> n.(*ir.BinaryExpr)
        n.Op() == ir.OFALL -> n.(*ir.BranchStmt)
        n.Op() == ir.OFOR -> n.(*ir.ForStmt)
        n.Op() == ir.OFORUNTIL -> n.(*ir.ForStmt)
        n.Op() == ir.OGE -> n.(*ir.BinaryExpr)
        n.Op() == ir.OGETG -> n.(*ir.CallExpr)
        n.Op() == ir.OGO -> n.(*ir.GoDeferStmt)
        n.Op() == ir.OGOTO -> n.(*ir.BranchStmt)
        n.Op() == ir.OGT -> n.(*ir.BinaryExpr)
        n.Op() == ir.OIDATA -> n.(*ir.UnaryExpr)
        n.Op() == ir.OIF -> n.(*ir.IfStmt)
        n.Op() == ir.OIMAG -> n.(*ir.UnaryExpr)
        n.Op() == ir.OINDEX -> n.(*ir.IndexExpr)
        n.Op() == ir.OINDEXMAP -> n.(*ir.IndexExpr)
        n.Op() == ir.OINLCALL -> n.(*ir.InlinedCallExpr)
        n.Op() == ir.OINLMARK -> n.(*ir.InlineMarkStmt)
        n.Op() == ir.OITAB -> n.(*ir.UnaryExpr)
        n.Op() == ir.OKEY -> n.(*ir.KeyExpr)
        n.Op() == ir.OLABEL -> n.(*ir.LabelStmt)
        n.Op() == ir.OLE -> n.(*ir.BinaryExpr)
        n.Op() == ir.OLEN -> n.(*ir.UnaryExpr)
        n.Op() == ir.OLSH -> n.(*ir.BinaryExpr)
        n.Op() == ir.OLT -> n.(*ir.BinaryExpr)
        n.Op() == ir.OMAKE -> n.(*ir.CallExpr)
        n.Op() == ir.OMAKECHAN -> n.(*ir.MakeExpr)
        n.Op() == ir.OMAKEMAP -> n.(*ir.MakeExpr)
        n.Op() == ir.OMAKESLICE -> n.(*ir.MakeExpr)
        n.Op() == ir.OMAKESLICECOPY -> n.(*ir.MakeExpr)
        n.Op() == ir.OMAPLIT -> n.(*ir.CompLitExpr)
        n.Op() == ir.OMETHEXPR -> n.(*ir.MethodExpr)
        n.Op() == ir.OMOD -> n.(*ir.BinaryExpr)
        n.Op() == ir.OMUL -> n.(*ir.BinaryExpr)
        n.Op() == ir.ONAME -> n.(*ir.Name)
        n.Op() == ir.ONE -> n.(*ir.BinaryExpr)
        n.Op() == ir.ONEG -> n.(*ir.UnaryExpr)
        n.Op() == ir.ONEW -> n.(*ir.UnaryExpr)
        n.Op() == ir.ONEWOBJ -> n.(*ir.UnaryExpr)
        n.Op() == ir.ONIL -> n.(*ir.NilExpr)
        n.Op() == ir.ONOT -> n.(*ir.UnaryExpr)
        n.Op() == ir.OOFFSETOF -> n.(*ir.UnaryExpr)
        n.Op() == ir.OOR -> n.(*ir.BinaryExpr)
        n.Op() == ir.OOROR -> n.(*ir.LogicalExpr)
        n.Op() == ir.OPACK -> n.(*ir.PkgName)
        n.Op() == ir.OPANIC -> n.(*ir.UnaryExpr)
        n.Op() == ir.OPAREN -> n.(*ir.ParenExpr)
        n.Op() == ir.OPLUS -> n.(*ir.UnaryExpr)
        n.Op() == ir.OPRINT -> n.(*ir.CallExpr)
        n.Op() == ir.OPRINTN -> n.(*ir.CallExpr)
        n.Op() == ir.OPTRLIT -> n.(*ir.AddrExpr)
        n.Op() == ir.ORANGE -> n.(*ir.RangeStmt)
        n.Op() == ir.OREAL -> n.(*ir.UnaryExpr)
        n.Op() == ir.ORECOVER -> n.(*ir.CallExpr)
        n.Op() == ir.ORECV -> n.(*ir.UnaryExpr)
        n.Op() == ir.ORESULT -> n.(*ir.ResultExpr)
        n.Op() == ir.ORETJMP -> n.(*ir.BranchStmt)
        n.Op() == ir.ORETURN -> n.(*ir.ReturnStmt)
        n.Op() == ir.ORSH -> n.(*ir.BinaryExpr)
        n.Op() == ir.ORUNES2STR -> n.(*ir.ConvExpr)
        n.Op() == ir.ORUNESTR -> n.(*ir.ConvExpr)
        n.Op() == ir.OSELECT -> n.(*ir.SelectStmt)
        n.Op() == ir.OSELRECV2 -> n.(*ir.AssignListStmt)
        n.Op() == ir.OSEND -> n.(*ir.SendStmt)
        n.Op() == ir.OSIZEOF -> n.(*ir.UnaryExpr)
        n.Op() == ir.OSLICE -> n.(*ir.SliceExpr)
        n.Op() == ir.OSLICE3 -> n.(*ir.SliceExpr)
        n.Op() == ir.OSLICE3ARR -> n.(*ir.SliceExpr)
        n.Op() == ir.OSLICEARR -> n.(*ir.SliceExpr)
        n.Op() == ir.OSLICEHEADER -> n.(*ir.SliceHeaderExpr)
        n.Op() == ir.OSLICELIT -> n.(*ir.CompLitExpr)
        n.Op() == ir.OSLICESTR -> n.(*ir.SliceExpr)
        n.Op() == ir.OSPTR -> n.(*ir.UnaryExpr)
        n.Op() == ir.OSTR2BYTES -> n.(*ir.ConvExpr)
        n.Op() == ir.OSTR2BYTESTMP -> n.(*ir.ConvExpr)
        n.Op() == ir.OSTR2RUNES -> n.(*ir.ConvExpr)
        n.Op() == ir.OSTRUCTLIT -> n.(*ir.CompLitExpr)
        n.Op() == ir.OSUB -> n.(*ir.BinaryExpr)
        n.Op() == ir.OSWITCH -> n.(*ir.SwitchStmt)
        n.Op() == ir.OTYPESW -> n.(*ir.TypeSwitchGuard)
        n.Op() == ir.OVARDEF -> n.(*ir.UnaryExpr)
        n.Op() == ir.OVARKILL -> n.(*ir.UnaryExpr)
        n.Op() == ir.OVARLIVE -> n.(*ir.UnaryExpr)
        n.Op() == ir.OXDOT -> n.(*ir.SelectorExpr)
        n.Op() == ir.OXOR -> n.(*ir.BinaryExpr)
}
'

cd ../ir
rf '
        rm \
                Node.SetOp \
                miniNode.SetOp \
                Node.Func \
                miniNode.Func \
                Node.Left Node.SetLeft \
                miniNode.Left miniNode.SetLeft \
                Node.Right Node.SetRight \
                miniNode.Right miniNode.SetRight \
                Node.List Node.PtrList Node.SetList \
                miniNode.List miniNode.PtrList miniNode.SetList \
                Node.Rlist Node.PtrRlist Node.SetRlist \
                miniNode.Rlist miniNode.PtrRlist miniNode.SetRlist \
                Node.Body Node.PtrBody Node.SetBody \
                miniNode.Body miniNode.PtrBody miniNode.SetBody \
                Node.SubOp Node.SetSubOp \
                miniNode.SubOp miniNode.SetSubOp \
                Node.SetSym \
                miniNode.SetSym \
                Node.Offset Node.SetOffset \
                miniNode.Offset miniNode.SetOffset \
                Node.Class Node.SetClass \
                miniNode.Class miniNode.SetClass \
                Node.Iota Node.SetIota \
                miniNode.Iota miniNode.SetIota \
                Node.Colas Node.SetColas \
                miniNode.Colas miniNode.SetColas \
                Node.Transient Node.SetTransient \
                miniNode.Transient miniNode.SetTransient \
                Node.Implicit Node.SetImplicit \
                miniNode.Implicit miniNode.SetImplicit \
                Node.IsDDD Node.SetIsDDD \
                miniNode.IsDDD miniNode.SetIsDDD \
                Node.MarkReadonly \
                miniNode.MarkReadonly \
                Node.Likely Node.SetLikely \
                miniNode.Likely miniNode.SetLikely \
                Node.SliceBounds Node.SetSliceBounds \
                miniNode.SliceBounds miniNode.SetSliceBounds \
                Node.NoInline Node.SetNoInline \
                miniNode.NoInline miniNode.SetNoInline \
                Node.IndexMapLValue Node.SetIndexMapLValue \
                miniNode.IndexMapLValue miniNode.SetIndexMapLValue \
                Node.ResetAux \
                miniNode.ResetAux \
                Node.HasBreak Node.SetHasBreak \
                miniNode.HasBreak miniNode.SetHasBreak \
                Node.Bounded Node.SetBounded \
                miniNode.Bounded miniNode.SetBounded \
                miniNode.Embedded miniNode.SetEmbedded \
                miniNode.Int64Val miniNode.Uint64Val miniNode.CanInt64 \
                miniNode.BoolVal miniNode.StringVal \
                miniNode.TChanDir miniNode.SetTChanDir \
                miniNode.Format \
                miniNode.copy miniNode.doChildren miniNode.editChildren \

'

Change-Id: I2a05b535963b43f83b1849fcf653f82b99af6035
Reviewed-on: https://go-review.googlesource.com/c/go/+/277934
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:37:34 +00:00
Russ Cox
6f27d29be0 [dev.regabi] cmd/compile: remove ir.Nod [generated]
Rewrite all uses of ir.Nod and friends to call the IR constructors directly.
This gives the results a more specific type and will play nicely with
introduction of more specific types throughout the code in a followup CL.

Passes buildall w/ toolstash -cmp.

[git-generate]
cd src/cmd/compile/internal/gc
rf '
ex . ../ir {
	import "cmd/compile/internal/ir"
	import "cmd/compile/internal/types"
	import "cmd/compile/internal/syntax"
	import "cmd/internal/src"

	var p *noder
	var orig syntax.Node
	var op ir.Op
	var l, r ir.Node
	var sym *types.Sym
	p.nod(orig, op, l, r) -> ir.NodAt(p.pos(orig), op, l, r)
	p.nodSym(orig, op, l, sym) -> nodlSym(p.pos(orig), op, l, sym)

	var xpos src.XPos
	var ns ir.Nodes
	npos(xpos, nodSym(op, l, sym)) -> nodlSym(xpos, op, l, sym)
	npos(xpos, liststmt(ns)) -> ir.NewBlockStmt(xpos, ns)
}
ex . ../ir {
	import "cmd/compile/internal/base"
	import "cmd/compile/internal/ir"
	import "cmd/compile/internal/types"

	var op ir.Op
	var l, r ir.Node
	ir.Nod(op, l, r) -> ir.NodAt(base.Pos, op, l, r)

	var sym *types.Sym
	nodSym(op, l, sym) -> nodlSym(base.Pos, op, l, sym)
}
ex . ../ir {
	import "cmd/compile/internal/ir"
	import "cmd/internal/src"

	# rf overlapping match handling is not quite good enough
	# for certain nested rewrites, so handle these two - which often contain other ir.NodAt calls - early.
	var l, r ir.Node
	var xpos src.XPos
	ir.NodAt(xpos, ir.OAS, l, r)              -> ir.NewAssignStmt(xpos, l, r)
	ir.NodAt(xpos, ir.OIF, l, nil)            -> ir.NewIfStmt(xpos, l, nil, nil)
}
ex . ../ir {
	import "cmd/compile/internal/ir"
	import "cmd/compile/internal/types"
	import "cmd/internal/src"

	var l, r ir.Node
	var sym *types.Sym
	var xpos src.XPos

	nodlSym(xpos, ir.ODOT, l, sym)                   -> ir.NewSelectorExpr(xpos, ir.ODOT, l, sym)
	nodlSym(xpos, ir.OXDOT, l, sym)                  -> ir.NewSelectorExpr(xpos, ir.OXDOT, l, sym)
	nodlSym(xpos, ir.ODOTPTR, l, sym)                -> ir.NewSelectorExpr(xpos, ir.ODOTPTR, l, sym)
	nodlSym(xpos, ir.OGOTO, nil, sym)                -> ir.NewBranchStmt(xpos, ir.OGOTO, sym)
	nodlSym(xpos, ir.ORETJMP, nil, sym)              -> ir.NewBranchStmt(xpos, ir.ORETJMP, sym)
	nodlSym(xpos, ir.OLABEL, nil, sym)               -> ir.NewLabelStmt(xpos, sym)
	nodlSym(xpos, ir.OSTRUCTKEY, l, sym)             -> ir.NewStructKeyExpr(xpos, sym, l)

	ir.NodAt(xpos, ir.OADD, l, r)             -> ir.NewBinaryExpr(xpos, ir.OADD, l, r)
	ir.NodAt(xpos, ir.OAND, l, r)             -> ir.NewBinaryExpr(xpos, ir.OAND, l, r)
	ir.NodAt(xpos, ir.OANDNOT, l, r)          -> ir.NewBinaryExpr(xpos, ir.OANDNOT, l, r)
	ir.NodAt(xpos, ir.ODIV, l, r)             -> ir.NewBinaryExpr(xpos, ir.ODIV, l, r)
	ir.NodAt(xpos, ir.OEQ, l, r)              -> ir.NewBinaryExpr(xpos, ir.OEQ, l, r)
	ir.NodAt(xpos, ir.OGE, l, r)              -> ir.NewBinaryExpr(xpos, ir.OGE, l, r)
	ir.NodAt(xpos, ir.OGT, l, r)              -> ir.NewBinaryExpr(xpos, ir.OGT, l, r)
	ir.NodAt(xpos, ir.OLE, l, r)              -> ir.NewBinaryExpr(xpos, ir.OLE, l, r)
	ir.NodAt(xpos, ir.OLSH, l, r)             -> ir.NewBinaryExpr(xpos, ir.OLSH, l, r)
	ir.NodAt(xpos, ir.OLT, l, r)              -> ir.NewBinaryExpr(xpos, ir.OLT, l, r)
	ir.NodAt(xpos, ir.OMOD, l, r)             -> ir.NewBinaryExpr(xpos, ir.OMOD, l, r)
	ir.NodAt(xpos, ir.OMUL, l, r)             -> ir.NewBinaryExpr(xpos, ir.OMUL, l, r)
	ir.NodAt(xpos, ir.ONE, l, r)              -> ir.NewBinaryExpr(xpos, ir.ONE, l, r)
	ir.NodAt(xpos, ir.OOR, l, r)              -> ir.NewBinaryExpr(xpos, ir.OOR, l, r)
	ir.NodAt(xpos, ir.ORSH, l, r)             -> ir.NewBinaryExpr(xpos, ir.ORSH, l, r)
	ir.NodAt(xpos, ir.OSUB, l, r)             -> ir.NewBinaryExpr(xpos, ir.OSUB, l, r)
	ir.NodAt(xpos, ir.OXOR, l, r)             -> ir.NewBinaryExpr(xpos, ir.OXOR, l, r)
	ir.NodAt(xpos, ir.OCOPY, l, r)            -> ir.NewBinaryExpr(xpos, ir.OCOPY, l, r)
	ir.NodAt(xpos, ir.OCOMPLEX, l, r)         -> ir.NewBinaryExpr(xpos, ir.OCOMPLEX, l, r)
	ir.NodAt(xpos, ir.OEFACE, l, r)           -> ir.NewBinaryExpr(xpos, ir.OEFACE, l, r)
	ir.NodAt(xpos, ir.OADDR, l, nil)          -> ir.NewAddrExpr(xpos, l)
	ir.NodAt(xpos, ir.OADDSTR, nil, nil)      -> ir.NewAddStringExpr(xpos, nil)
	ir.NodAt(xpos, ir.OANDAND, l, r)          -> ir.NewLogicalExpr(xpos, ir.OANDAND, l, r)
	ir.NodAt(xpos, ir.OOROR, l, r)            -> ir.NewLogicalExpr(xpos, ir.OOROR, l, r)
	ir.NodAt(xpos, ir.OARRAYLIT, nil, nil)    -> ir.NewCompLitExpr(xpos, ir.OARRAYLIT, nil, nil)
	ir.NodAt(xpos, ir.OCOMPLIT, nil, nil)     -> ir.NewCompLitExpr(xpos, ir.OCOMPLIT, nil, nil)
	ir.NodAt(xpos, ir.OMAPLIT, nil, nil)      -> ir.NewCompLitExpr(xpos, ir.OMAPLIT, nil, nil)
	ir.NodAt(xpos, ir.OSTRUCTLIT, nil, nil)   -> ir.NewCompLitExpr(xpos, ir.OSTRUCTLIT, nil, nil)
	ir.NodAt(xpos, ir.OSLICELIT, nil, nil)    -> ir.NewCompLitExpr(xpos, ir.OSLICELIT, nil, nil)
	ir.NodAt(xpos, ir.OARRAYLIT, nil, r)      -> ir.NewCompLitExpr(xpos, ir.OARRAYLIT, r.(ir.Ntype), nil)
	ir.NodAt(xpos, ir.OCOMPLIT, nil, r)       -> ir.NewCompLitExpr(xpos, ir.OCOMPLIT, r.(ir.Ntype), nil)
	ir.NodAt(xpos, ir.OMAPLIT, nil, r)        -> ir.NewCompLitExpr(xpos, ir.OMAPLIT, r.(ir.Ntype), nil)
	ir.NodAt(xpos, ir.OSTRUCTLIT, nil, r)     -> ir.NewCompLitExpr(xpos, ir.OSTRUCTLIT, r.(ir.Ntype), nil)
	ir.NodAt(xpos, ir.OSLICELIT, nil, r)      -> ir.NewCompLitExpr(xpos, ir.OSLICELIT, r.(ir.Ntype), nil)
	ir.NodAt(xpos, ir.OAS2, nil, nil)         -> ir.NewAssignListStmt(xpos, ir.OAS2, nil, nil)
	ir.NodAt(xpos, ir.OAS2DOTTYPE, nil, nil)  -> ir.NewAssignListStmt(xpos, ir.OAS2DOTTYPE, nil, nil)
	ir.NodAt(xpos, ir.OAS2FUNC, nil, nil)     -> ir.NewAssignListStmt(xpos, ir.OAS2FUNC, nil, nil)
	ir.NodAt(xpos, ir.OAS2MAPR, nil, nil)     -> ir.NewAssignListStmt(xpos, ir.OAS2MAPR, nil, nil)
	ir.NodAt(xpos, ir.OAS2RECV, nil, nil)     -> ir.NewAssignListStmt(xpos, ir.OAS2RECV, nil, nil)
	ir.NodAt(xpos, ir.OSELRECV2, nil, nil)    -> ir.NewAssignListStmt(xpos, ir.OSELRECV2, nil, nil)
	ir.NodAt(xpos, ir.OASOP, l, r)            -> ir.NewAssignOpStmt(xpos, ir.OXXX, l, r)
	ir.NodAt(xpos, ir.OBITNOT, l, nil)        -> ir.NewUnaryExpr(xpos, ir.OBITNOT, l)
	ir.NodAt(xpos, ir.ONEG, l, nil)           -> ir.NewUnaryExpr(xpos, ir.ONEG, l)
	ir.NodAt(xpos, ir.ONOT, l, nil)           -> ir.NewUnaryExpr(xpos, ir.ONOT, l)
	ir.NodAt(xpos, ir.OPLUS, l, nil)          -> ir.NewUnaryExpr(xpos, ir.OPLUS, l)
	ir.NodAt(xpos, ir.ORECV, l, nil)          -> ir.NewUnaryExpr(xpos, ir.ORECV, l)
	ir.NodAt(xpos, ir.OALIGNOF, l, nil)       -> ir.NewUnaryExpr(xpos, ir.OALIGNOF, l)
	ir.NodAt(xpos, ir.OCAP, l, nil)           -> ir.NewUnaryExpr(xpos, ir.OCAP, l)
	ir.NodAt(xpos, ir.OCLOSE, l, nil)         -> ir.NewUnaryExpr(xpos, ir.OCLOSE, l)
	ir.NodAt(xpos, ir.OIMAG, l, nil)          -> ir.NewUnaryExpr(xpos, ir.OIMAG, l)
	ir.NodAt(xpos, ir.OLEN, l, nil)           -> ir.NewUnaryExpr(xpos, ir.OLEN, l)
	ir.NodAt(xpos, ir.ONEW, l, nil)           -> ir.NewUnaryExpr(xpos, ir.ONEW, l)
	ir.NodAt(xpos, ir.ONEWOBJ, l, nil)        -> ir.NewUnaryExpr(xpos, ir.ONEWOBJ, l)
	ir.NodAt(xpos, ir.OOFFSETOF, l, nil)      -> ir.NewUnaryExpr(xpos, ir.OOFFSETOF, l)
	ir.NodAt(xpos, ir.OPANIC, l, nil)         -> ir.NewUnaryExpr(xpos, ir.OPANIC, l)
	ir.NodAt(xpos, ir.OREAL, l, nil)          -> ir.NewUnaryExpr(xpos, ir.OREAL, l)
	ir.NodAt(xpos, ir.OSIZEOF, l, nil)        -> ir.NewUnaryExpr(xpos, ir.OSIZEOF, l)
	ir.NodAt(xpos, ir.OCHECKNIL, l, nil)      -> ir.NewUnaryExpr(xpos, ir.OCHECKNIL, l)
	ir.NodAt(xpos, ir.OCFUNC, l, nil)         -> ir.NewUnaryExpr(xpos, ir.OCFUNC, l)
	ir.NodAt(xpos, ir.OIDATA, l, nil)         -> ir.NewUnaryExpr(xpos, ir.OIDATA, l)
	ir.NodAt(xpos, ir.OITAB, l, nil)          -> ir.NewUnaryExpr(xpos, ir.OITAB, l)
	ir.NodAt(xpos, ir.OSPTR, l, nil)          -> ir.NewUnaryExpr(xpos, ir.OSPTR, l)
	ir.NodAt(xpos, ir.OVARDEF, l, nil)        -> ir.NewUnaryExpr(xpos, ir.OVARDEF, l)
	ir.NodAt(xpos, ir.OVARKILL, l, nil)       -> ir.NewUnaryExpr(xpos, ir.OVARKILL, l)
	ir.NodAt(xpos, ir.OVARLIVE, l, nil)       -> ir.NewUnaryExpr(xpos, ir.OVARLIVE, l)
	ir.NodAt(xpos, ir.OBLOCK, nil, nil)       -> ir.NewBlockStmt(xpos, nil)
	ir.NodAt(xpos, ir.OBREAK, nil, nil)       -> ir.NewBranchStmt(xpos, ir.OBREAK, nil)
	ir.NodAt(xpos, ir.OCONTINUE, nil, nil)    -> ir.NewBranchStmt(xpos, ir.OCONTINUE, nil)
	ir.NodAt(xpos, ir.OFALL, nil, nil)        -> ir.NewBranchStmt(xpos, ir.OFALL, nil)
	ir.NodAt(xpos, ir.OGOTO, nil, nil)        -> ir.NewBranchStmt(xpos, ir.OGOTO, nil)
	ir.NodAt(xpos, ir.ORETJMP, nil, nil)      -> ir.NewBranchStmt(xpos, ir.ORETJMP, nil)
	ir.NodAt(xpos, ir.OCALL, l, nil)          -> ir.NewCallExpr(xpos, ir.OCALL, l, nil)
	ir.NodAt(xpos, ir.OCALLFUNC, l, nil)      -> ir.NewCallExpr(xpos, ir.OCALLFUNC, l, nil)
	ir.NodAt(xpos, ir.OCALLINTER, l, nil)     -> ir.NewCallExpr(xpos, ir.OCALLINTER, l, nil)
	ir.NodAt(xpos, ir.OCALLMETH, l, nil)      -> ir.NewCallExpr(xpos, ir.OCALLMETH, l, nil)
	ir.NodAt(xpos, ir.OAPPEND, l, nil)        -> ir.NewCallExpr(xpos, ir.OAPPEND, l, nil)
	ir.NodAt(xpos, ir.ODELETE, l, nil)        -> ir.NewCallExpr(xpos, ir.ODELETE, l, nil)
	ir.NodAt(xpos, ir.OGETG, l, nil)          -> ir.NewCallExpr(xpos, ir.OGETG, l, nil)
	ir.NodAt(xpos, ir.OMAKE, l, nil)          -> ir.NewCallExpr(xpos, ir.OMAKE, l, nil)
	ir.NodAt(xpos, ir.OPRINT, l, nil)         -> ir.NewCallExpr(xpos, ir.OPRINT, l, nil)
	ir.NodAt(xpos, ir.OPRINTN, l, nil)        -> ir.NewCallExpr(xpos, ir.OPRINTN, l, nil)
	ir.NodAt(xpos, ir.ORECOVER, l, nil)       -> ir.NewCallExpr(xpos, ir.ORECOVER, l, nil)
	ir.NodAt(xpos, ir.OCASE, nil, nil)        -> ir.NewCaseStmt(xpos, nil, nil)
	ir.NodAt(xpos, ir.OCONV, l, nil)          -> ir.NewConvExpr(xpos, ir.OCONV, nil, l)
	ir.NodAt(xpos, ir.OCONVIFACE, l, nil)     -> ir.NewConvExpr(xpos, ir.OCONVIFACE, nil, l)
	ir.NodAt(xpos, ir.OCONVNOP, l, nil)       -> ir.NewConvExpr(xpos, ir.OCONVNOP, nil, l)
	ir.NodAt(xpos, ir.ORUNESTR, l, nil)       -> ir.NewConvExpr(xpos, ir.ORUNESTR, nil, l)
	ir.NodAt(xpos, ir.ODCL, l, nil)           -> ir.NewDecl(xpos, ir.ODCL, l)
	ir.NodAt(xpos, ir.ODCLCONST, l, nil)      -> ir.NewDecl(xpos, ir.ODCLCONST, l)
	ir.NodAt(xpos, ir.ODCLTYPE, l, nil)       -> ir.NewDecl(xpos, ir.ODCLTYPE, l)
	ir.NodAt(xpos, ir.ODCLFUNC, nil, nil)     -> ir.NewFunc(xpos)
	ir.NodAt(xpos, ir.ODEFER, l, nil)         -> ir.NewGoDeferStmt(xpos, ir.ODEFER, l)
	ir.NodAt(xpos, ir.OGO, l, nil)            -> ir.NewGoDeferStmt(xpos, ir.OGO, l)
	ir.NodAt(xpos, ir.ODEREF, l, nil)         -> ir.NewStarExpr(xpos, l)
	ir.NodAt(xpos, ir.ODOT, l, nil)           -> ir.NewSelectorExpr(xpos, ir.ODOT, l, nil)
	ir.NodAt(xpos, ir.ODOTPTR, l, nil)        -> ir.NewSelectorExpr(xpos, ir.ODOTPTR, l, nil)
	ir.NodAt(xpos, ir.ODOTMETH, l, nil)       -> ir.NewSelectorExpr(xpos, ir.ODOTMETH, l, nil)
	ir.NodAt(xpos, ir.ODOTINTER, l, nil)      -> ir.NewSelectorExpr(xpos, ir.ODOTINTER, l, nil)
	ir.NodAt(xpos, ir.OXDOT, l, nil)          -> ir.NewSelectorExpr(xpos, ir.OXDOT, l, nil)
	ir.NodAt(xpos, ir.ODOTTYPE, l, nil)       -> ir.NewTypeAssertExpr(xpos, l, nil)
	ir.NodAt(xpos, ir.ODOTTYPE, l, r)         -> ir.NewTypeAssertExpr(xpos, l, r.(ir.Ntype))
	ir.NodAt(xpos, ir.OFOR, l, r)             -> ir.NewForStmt(xpos, nil, l, r, nil)
	ir.NodAt(xpos, ir.OINDEX, l, r)           -> ir.NewIndexExpr(xpos, l, r)
	ir.NodAt(xpos, ir.OINLMARK, nil, nil)     -> ir.NewInlineMarkStmt(xpos, types.BADWIDTH)
	ir.NodAt(xpos, ir.OKEY, l, r)             -> ir.NewKeyExpr(xpos, l, r)
	ir.NodAt(xpos, ir.OLABEL, nil, nil)       -> ir.NewLabelStmt(xpos, nil)
	ir.NodAt(xpos, ir.OMAKECHAN, l, r)        -> ir.NewMakeExpr(xpos, ir.OMAKECHAN, l, r)
	ir.NodAt(xpos, ir.OMAKEMAP, l, r)         -> ir.NewMakeExpr(xpos, ir.OMAKEMAP, l, r)
	ir.NodAt(xpos, ir.OMAKESLICE, l, r)       -> ir.NewMakeExpr(xpos, ir.OMAKESLICE, l, r)
	ir.NodAt(xpos, ir.OMAKESLICECOPY, l, r)   -> ir.NewMakeExpr(xpos, ir.OMAKESLICECOPY, l, r)
	ir.NodAt(xpos, ir.ONIL, nil, nil)         -> ir.NewNilExpr(xpos)
	ir.NodAt(xpos, ir.OPACK, nil, nil)        -> ir.NewPkgName(xpos, nil, nil)
	ir.NodAt(xpos, ir.OPAREN, l, nil)         -> ir.NewParenExpr(xpos, l)
	ir.NodAt(xpos, ir.ORANGE, nil, r)         -> ir.NewRangeStmt(xpos, nil, r, nil)
	ir.NodAt(xpos, ir.ORESULT, nil, nil)      -> ir.NewResultExpr(xpos, nil, types.BADWIDTH)
	ir.NodAt(xpos, ir.ORETURN, nil, nil)      -> ir.NewReturnStmt(xpos, nil)
	ir.NodAt(xpos, ir.OSELECT, nil, nil)      -> ir.NewSelectStmt(xpos, nil)
	ir.NodAt(xpos, ir.OSEND, l, r)            -> ir.NewSendStmt(xpos, l, r)
	ir.NodAt(xpos, ir.OSLICE, l, nil)         -> ir.NewSliceExpr(xpos, ir.OSLICE, l)
	ir.NodAt(xpos, ir.OSLICEARR, l, nil)      -> ir.NewSliceExpr(xpos, ir.OSLICEARR, l)
	ir.NodAt(xpos, ir.OSLICESTR, l, nil)      -> ir.NewSliceExpr(xpos, ir.OSLICESTR, l)
	ir.NodAt(xpos, ir.OSLICE3, l, nil)        -> ir.NewSliceExpr(xpos, ir.OSLICE3, l)
	ir.NodAt(xpos, ir.OSLICE3ARR, l, nil)     -> ir.NewSliceExpr(xpos, ir.OSLICE3ARR, l)
	ir.NodAt(xpos, ir.OSLICEHEADER, l, nil)   -> ir.NewSliceHeaderExpr(xpos, nil, l, nil, nil)
	ir.NodAt(xpos, ir.OSWITCH, l, nil)        -> ir.NewSwitchStmt(xpos, l, nil)
	ir.NodAt(xpos, ir.OINLCALL, nil, nil)     -> ir.NewInlinedCallExpr(xpos, nil, nil)
}

rm noder.nod noder.nodSym nodSym nodlSym ir.NodAt ir.Nod
'

Change-Id: Ibf1eb708de8463ae74ccc47d7966cc263a18295e
Reviewed-on: https://go-review.googlesource.com/c/go/+/277933
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 06:37:28 +00:00
Russ Cox
69cf39089f [dev.regabi] cmd/compile: do not die in early base.FlushErrors
Change-Id: I72bac8a85db14494298059f8efddc5cbbf45f7ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/279214
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 05:03:59 +00:00
Matthew Dempsky
6d03cde88a [dev.regabi] cmd/dist: automatically bootstrap cmd subdirs
We want almost all cmd subdirectories anyway, and relative to the cost
of the rest of toolchain bootstrapping, copying/rewriting a few extra
source files is way cheaper than the engineering cost of forgetting to
maintain these lists as we split out new packages.

While here, also add cmd/internal/archive (and make it compile with Go
1.4) because it'll be needed in subsequent refactorings anyway; and
skip files starting with # (emacs temporary files) and test files
ending with _test.go.

Change-Id: Ic86e680a5fdfaecd617c36d5d04413293b2d6f52
Reviewed-on: https://go-review.googlesource.com/c/go/+/279832
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
2020-12-23 04:20:02 +00:00
Russ Cox
d1d1099c91 [dev.regabi] cmd/compile: fixes for big rewrite
Adjust the new regabi code a bit to make the rewrites apply cleanly.

Change-Id: Ice5378e94d94ab45ca0572f44ab8c94b847271b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/279530
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 00:51:53 +00:00
Russ Cox
ec741b0447 [dev.regabi] all: merge master (c9fb4eb) into dev.regabi
Merge List:

* 2020-12-22 c9fb4eb0a2 cmd/link: handle grouped resource sections
* 2020-12-22 c06a354bcc test: trigger SIGSEGV instead of SIGTRAP in issue11656.go
* 2020-12-22 0aa9b4709a cmd/pack: r command create output file if not exist
* 2020-12-22 4d27c4c223 runtime: correct error handling in several FreeBSD syscall wrappers
* 2020-12-22 9b6147120a cmd/pack: treat compiler's -linkobj output as "compiler object"
* 2020-12-21 bc7e4d9257 syscall: don't generate ptrace on iOS
* 2020-12-21 6cff874c47 runtime/metrics: add Read examples
* 2020-12-21 8438a5779b runtime: use _exit on darwin
* 2020-12-21 cb95819cf6 runtime: detect netbsd netpoll overrun in sysmon
* 2020-12-21 53c984d976 runtime: skip wakep call in wakeNetPoller on Plan 9
* 2020-12-21 9abbe27710 test: skip issue11656.go on mips/mips64/ppc64

Change-Id: Ibb235fbf6a86ebcf50c686dc11f7c02d1865f845
2020-12-22 16:55:15 -05:00
Russ Cox
acc32ea124 [dev.regabi] codereview.cfg: add config for dev.regabi
Change-Id: Ida5cae7475bc19388fa46ceca25d983f560fa4e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/279524
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-12-22 21:02:04 +00:00
Jason A. Donenfeld
c9fb4eb0a2 cmd/link: handle grouped resource sections
The Go PE linker does not support enough generalized PE logic to
properly handle .rsrc sections gracefully. Instead a few things are
special cased for these. The linker also does not support PE's "grouped
sections" features, in which input objects have several named sections
that are sorted, merged, and renamed in the output file. In the past,
more sophisticated support for resources or for PE features like grouped
sections have not been necessary, as Go's own object formats are pretty
vanilla, and GNU binutils also produces pretty vanilla objects where all
sections are already merged.

However, GNU binutils is lagging with arm support, and here LLVM has
picked up the slack. In particular, LLVM has its own rc/cvtres combo,
which are glued together in mingw LLVM distributions as windres, a
command line compatible tool with binutils' windres, which supports arm
and arm64. But there's a key difference between binutils' windres and
LLVM's windres: the LLVM one uses proper grouped sections.

So, this commit adds grouped sections support for resource sections to
the linker. We don't attempt to plumb generic support for grouped
sections, just as there isn't generic support already for what resources
require. Instead we augment the resource handling logic to deal with
standard two-section resource objects.

We also add a test for this, akin to the current test for more vanilla
binutils resource objects, and make sure that the rsrc tests are always
performed.

Fixes #42866.
Fixes #43182.

Change-Id: I059450021405cdf2ef1c195ddbab3960764ad711
Reviewed-on: https://go-review.googlesource.com/c/go/+/268337
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
2020-12-22 20:00:00 +00:00
Russ Cox
c40934b33d [dev.regabi] cmd/compile: adjust one case in walkexpr
The mid-case n := n.(*ir.AssignExpr) does not lend itself
well to pulling the code into a new function, because n will
be a function argument and will not be redeclarable.

Change-Id: I673f2aa37eea64b083725326ed3fa36447bcc7af
Reviewed-on: https://go-review.googlesource.com/c/go/+/279426
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-22 19:45:35 +00:00
Russ Cox
280e7fd1ee [dev.regabi] cmd/compile: only access Func method on concrete types
Sets up for removing Func from Node interface.
That means that once the Name reorg is done,
which will let us remove Name, Sym, and Val,
Node will be basically a minimal interface.

Passes buildall w/ toolstash -cmp.

Change-Id: I6e87897572debd7f8e29b4f5167763dc2792b408
Reviewed-on: https://go-review.googlesource.com/c/go/+/279484
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-22 19:32:21 +00:00
Russ Cox
51ba53f5c2 [dev.regabi] cmd/compile: separate misc for gc split
Misc cleanup for splitting package gc: API tweaks
and boundary adjustments.

The change in ir.NewBlockStmt makes it a drop-in
replacement for liststmt.

Change-Id: I9455fe8ccae7d71fe8ccf390ac96672389bf4f3d
Reviewed-on: https://go-review.googlesource.com/c/go/+/279305
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-22 19:32:16 +00:00