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Commit Graph

7 Commits

Author SHA1 Message Date
Alan Donovan
cd908f1108 go.tools/ssa/interp: capture stdout/err of target programs and check for "BUG".
The $GOROOT/tests may print "BUG" on failure but do not
necessarily exit zero, so we must capture their output too.

Details:
- make plan9 use unix's valueToBytes function (now in externals.go)
- direct the target's syscall.Write and print/println built-ins to a new utility, write().  This may capture the output into a global variable.

R=gri, r
CC=golang-dev
https://golang.org/cl/14550044
2013-10-08 14:35:39 -04:00
Alan Donovan
7e7d99b4c9 go.tools/ssa/interp: fixes to enable running tests of package "encoding".
Running the interpreter on (most of) the tests package in
"encoding" unearthed a couple of ssa.builder bugs, already
fixed.  This CL contains the interpreter fixes that were
required.  (The "encoding" tests aren't added to the suite
since they're slow.)

Added intrinsics for:
        math.Exp
        math.Min
        hash/crc32.haveSSE42
        (reflect.Type).Field
        (reflect.Type).NumField
        (reflect.Type).NumMethod
        reflect.New
        (reflect.Value).NumMethod
        syscall.RawSyscall (returns ENOSYS)
        reflect.Set (a no-op)

Treat unsafe.Pointer -> *T conversions by returning new(T).
This is incorrect but at least preserves type-safety,
which is sufficient for these tests.

hashmap: treat nil *hashmap as an empty map.

R=gri
CC=golang-dev
https://golang.org/cl/12901046
2013-09-12 11:00:31 -04:00
Alan Donovan
5cbf2abd36 go.tools/ssa: ensure address-deriving operations panic on nil inputs.
&x.f, &x[0], x[i:j], &*x all must panic if x==nil.

The first three are already addressed by the semantics of
FieldAddr, IndexAddr, Slice; updated docs to reflect this.
The final case requires generation of an additional dynamic check.

See golang.org/s/go12nil for details.

Tested on $GOROOT/test/nilptr2.go (with patch from CL 13108043)

Also: remove a TODO where a no-op will do.

R=gri, crawshaw
CC=golang-dev, rsc
https://golang.org/cl/13064044
2013-08-19 17:51:33 -04:00
Robert Griesemer
0b3996b1d3 go.tools/ssa/interp: add missing "external" (fix build)
R=adonovan, bradfitz
CC=golang-dev
https://golang.org/cl/12898043
2013-08-13 15:00:07 -07:00
Alan Donovan
80ec883f7b go.tools/ssa: several small clean-ups.
- removed a number of obsolete TODO(gri) comments.
- bring ssa.DefaultType back into sync with types.defaultType.
- re-enable types.Package.Path()!="" assertion.
- use Path() (not reflect pointer) in sort routine.
- make interp.checkInterface use types.MissingMethod.
- un-export ssa.MakeId function.
- inline pointer() into all callers, and delete.
- enable two more interp_tests: $GOROOT/test/{method3,cmp}.go
- add links to bugs to other interp_tests.
- add runtime.NumCPU to ssa/interp/externals.go

R=gri
CC=golang-dev
https://golang.org/cl/11353043
2013-07-16 12:23:55 -04:00
Alan Donovan
6c7ce1c2d3 go.tools/ssa: Value.Pos() method + remaining source position plumbing.
Implement Pos() method for
  Values:       Parameter, Capture, Phi.  (Not Literal, Builtin.)
  Instructions: UnOp, BinOp, Store.

'address' (an lvalue) now needs position of '*' in "*addr".

Also:
- Un-export fields Pos_ Type_ Name_ Block_ from various values/instructions.
  Define NewFunction() as a temporary measure.
  Will try to eliminate calls from clients...
- Remove Implements{Value,Member,Interface} marker methods.
  I've decided I don't like them.
- Func.addParamObj helper.
- Various comment fixes.

R=gri
CC=golang-dev
https://golang.org/cl/9740046
2013-05-30 09:59:17 -04:00
Rob Pike
01f8cd246d go.tools: add go/types, ssa, and cmd/vet
They will be deleted from their current homes once this has landed.
Changes made to import paths to make the code compile, and to find
errchk in the right place in cmd/vet's Makefile.
TODO in a later CL: tidy up vet.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/9495043
2013-05-17 13:20:39 -07:00