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Commit Graph

743 Commits

Author SHA1 Message Date
Rémy Oudompheng
14b0af4272 cmd/gc: fix walkcompare bugs.
Revision c0e0467635ec (cmd/gc: return canonical Node* from temp)
exposed original nodes of temporaries, allowing callers to mutate
their types.

In walkcompare a temporary could be typed as ideal because of
this. Additionnally, assignment of a comparison result to
a custom boolean type was broken.

Fixes #7366.

LGTM=rsc
R=rsc, iant, khr
CC=golang-codereviews
https://golang.org/cl/66930044
2014-02-24 19:51:59 +01:00
Shenghou Ma
e33e47e844 cmd/gc: diagnose "make([]T, non-integer)" correctly.
Fixes #7223.

LGTM=rsc
R=golang-codereviews, gobot, rsc
CC=golang-codereviews
https://golang.org/cl/63040043
2014-02-23 16:31:48 -05:00
Chris Manghane
a8a7f18aea cmd/gc: make embedded, unexported fields read-only.
Fixes #7363.

LGTM=gri
R=gri, rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/66510044
2014-02-20 11:32:55 -08:00
Rick Arnold
8eec4ebd7d cmd/gc: fix array index out of bounds error message
The error message was previously off by one in all cases.

Fixes #7150.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/65850043
2014-02-19 11:29:36 -08:00
Rémy Oudompheng
96678f9dc0 cmd/gc: reject incorrect use of fallthrough.
Fixes #6500.

LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/14920053
2014-02-19 07:55:03 +01:00
Russ Cox
1a3ee6794c cmd/gc: record &x[0] as taking address of x, if x is an array
Not recording the address being taken was causing
the liveness analysis not to preserve x in the absence
of direct references to x, which in turn was making the
net test fail with GOGC=0.

In addition to the test, this fixes a bug wherein
        GOGC=0 go test -short net
crashed if liveness analysis was in use (like at tip, not like Go 1.2).

TBR=ken2
CC=golang-codereviews
https://golang.org/cl/64470043
2014-02-15 20:01:15 -05:00
Rémy Oudompheng
15d294991f cmd/gc: do not lower copy to a value node in go/defer.
The existing tests issue4463.go and issue4654.go had failures at
typechecking and did not test walking the AST.

Fixes #7272.

LGTM=khr
R=khr, rsc, iant
CC=golang-codereviews
https://golang.org/cl/60550044
2014-02-15 16:39:04 +01:00
Dmitriy Vyukov
1fa7029425 runtime: combine small NoScan allocations
Combine NoScan allocations < 16 bytes into a single memory block.
Reduces number of allocations on json/garbage benchmarks by 10+%.

json-1
allocated                 8039872      7949194      -1.13%
allocs                     105774        93776     -11.34%
cputime                 156200000    100700000     -35.53%
gc-pause-one              4908873      3814853     -22.29%
gc-pause-total            2748969      2899288      +5.47%
rss                      52674560     43560960     -17.30%
sys-gc                    3796976      3256304     -14.24%
sys-heap                 43843584     35192832     -19.73%
sys-other                 5589312      5310784      -4.98%
sys-stack                  393216       393216      +0.00%
sys-total                53623088     44153136     -17.66%
time                    156193436    100886714     -35.41%
virtual-mem             256548864    256540672      -0.00%

garbage-1
allocated                 2996885      2932982      -2.13%
allocs                      62904        55200     -12.25%
cputime                  17470000     17400000      -0.40%
gc-pause-one            932757485    925806143      -0.75%
gc-pause-total            4663787      4629030      -0.75%
rss                    1151074304   1133670400      -1.51%
sys-gc                   66068352     65085312      -1.49%
sys-heap               1039728640   1024065536      -1.51%
sys-other                38038208     37485248      -1.45%
sys-stack                 8650752      8781824      +1.52%
sys-total              1152485952   1135417920      -1.48%
time                     17478088     17418005      -0.34%
virtual-mem            1343709184   1324204032      -1.45%

LGTM=iant, bradfitz
R=golang-codereviews, dave, iant, rsc, bradfitz
CC=golang-codereviews, khr
https://golang.org/cl/38750047
2014-01-24 22:35:11 +04:00
Rémy Oudompheng
20137eb4b9 cmd/gc: preserve qualified names of unexported methods in imports.
Fixes #6295.

LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/20850043
2014-01-21 22:55:50 -05:00
Dominik Honnef
062ae45711 cmd/gc: do not typecheck nil types in multiple assignment
Fixes #6572.

LGTM=rsc, daniel.morsing, rsc
R=golang-codereviews, bradfitz, minux.ma, iant, rsc, gobot, daniel.morsing
CC=golang-codereviews
https://golang.org/cl/14516055
2014-01-21 22:44:54 -05:00
Russ Cox
334056a7bc cmd/gc: return canonical Node* from temp
For historical reasons, temp was returning a copy
of the created Node*, not the original Node*.
This meant that if analysis recorded information in the
returned node (for example, n->addrtaken = 1), the
analysis would not show up on the original Node*, the
one kept in fn->dcl and consulted during liveness
bitmap creation.

Correct this, and watch for it when setting addrtaken.

Fixes #7083.

R=khr, dave, minux.ma
CC=golang-codereviews
https://golang.org/cl/51010045
2014-01-14 10:43:13 -05:00
Rémy Oudompheng
f739dae7db cmd/gc: mark OGOTO as a statement for formatters.
Nodes of goto statements were corrupted when written
to export data.

Fixes #7023.

R=rsc, dave, minux.ma
CC=golang-codereviews
https://golang.org/cl/46190043
2014-01-10 01:33:24 +01:00
Daniel Morsing
f2e94b58a0 cmd/gc: silence assignment errors to undefined symbols
Fixes #6406.

R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/46900043
2014-01-03 21:03:20 +01:00
Martin Olsson
5499034a71 all: fix a few spelling errors in source comments
R=golang-codereviews, dave, iant
CC=golang-codereviews
https://golang.org/cl/45750044
2013-12-27 08:59:02 -08:00
Shenghou Ma
f85ba7d50a cmd/gc: fix comparison order of parameters in mpcmpfltc(a, b)
It should compare a - b to 0, not b - a to 0.
Fixes #6964.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/39020044
2013-12-16 16:54:10 -05:00
Ian Lance Taylor
d270e6f28c test: match gccgo import error messages
Gccgo doesn't have the same equivalent of file name and
package as the gc compiler, so the error messages are
necessarily different.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/40510048
2013-12-12 19:02:11 -08:00
Ian Lance Taylor
5ddc6bd84d test: match gccgo error messages
fixedbugs/issue4510.dir/f2.go:7: error: 'fmt' defined as both imported name and global name
f1.go:7: note: 'fmt' imported here

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/41530044
2013-12-12 17:18:37 -08:00
Ian Lance Taylor
161a45afdf test: match gccgo error messages
const1.go:33: error: integer constant overflow
<similar errors omitted>
const1.go:64: error: division by zero
const1.go:67: error: floating point constant overflow
const1.go:68: error: floating point constant overflow
const1.go:69: error: floating point constant overflow
const1.go:70: error: division by zero
const1.go:71: error: expected integer type
const1.go:77: error: argument 1 has incompatible type (cannot use type int8 as type int)
const1.go:78: error: argument 1 has incompatible type (cannot use type int8 as type int)
const1.go:79: error: argument 1 has incompatible type (cannot use type uint8 as type int)
const1.go:81: error: argument 1 has incompatible type (cannot use type float32 as type int)
const1.go:82: error: argument 1 has incompatible type (cannot use type float64 as type int)
const1.go:83: error: floating point constant truncated to integer
const1.go:85: error: argument 1 has incompatible type (cannot use type float64 as type int)
const1.go:86: error: argument 1 has incompatible type (cannot use type string as type int)
const1.go:87: error: argument 1 has incompatible type (cannot use type bool as type int)
const1.go:90: error: const initializer cannot be nil
const1.go:91: error: expression is not constant
const1.go:92: error: expression is not constant
const1.go:93: error: invalid constant type
const1.go:94: error: invalid constant type
fixedbugs/bug462.go:17: error: unknown field 'os.File' in 'T'
fixedbugs/issue3705.go:9: error: cannot declare init - must be func
fixedbugs/issue4251.go:12: error: inverted slice range
fixedbugs/issue4251.go:16: error: inverted slice range
fixedbugs/issue4251.go:20: error: inverted slice range
fixedbugs/issue4405.go:11: error: invalid character 0x7 in identifier
fixedbugs/issue4405.go:12: error: invalid character 0x8 in identifier
fixedbugs/issue4405.go:13: error: invalid character 0xb in identifier
fixedbugs/issue4405.go:14: error: invalid character 0xc in identifier
fixedbugs/issue4429.go:15: error: expected pointer
fixedbugs/issue4517d.go:9: error: cannot import package as init
fixedbugs/issue4545.go:17: error: invalid context-determined non-integer type for left operand of shift
fixedbugs/issue4545.go:16: error: incompatible types in binary expression
fixedbugs/issue4610.go:15: error: expected ';' or '}' or newline
fixedbugs/issue4610.go:16: error: expected declaration
fixedbugs/issue4654.go:15: error: value computed is not used
<similar errors omitted>
fixedbugs/issue4776.go:9: error: program must start with package clause
fixedbugs/issue4776.go:9: error: expected ';' or newline after package clause
fixedbugs/issue4813.go:31: error: index must be integer
<similar errors omitted>
fixedbugs/issue4847.go:22: error: initialization expression for 'matchAny' depends upon itself
fixedbugs/issue5089.go:13: error: redefinition of 'bufio.Buffered': receiver name changed
fixedbugs/issue5089.go:11: note: previous definition of 'bufio.Buffered' was here
fixedbugs/issue5172.go:17: error: reference to undefined field or method 'bar'
fixedbugs/issue5172.go:18: error: reference to undefined field or method 'bar'
fixedbugs/issue5172.go:12: error: use of undefined type 'bar'
fixedbugs/issue5358.go:16: error: argument 2 has incompatible type
fixedbugs/issue5581.go:29: error: use of undefined type 'Blah'
funcdup.go:10: error: redefinition of 'i'
funcdup.go:10: note: previous definition of 'i' was here
<similar errors omitted>
funcdup2.go:10: error: redefinition of 'i'
funcdup2.go:10: note: previous definition of 'i' was here
<similar errors omitted>
slice3err.go:20: error: middle index required in 3-index slice
<similar errors omitted>
slice3err.go:20: error: final index required in 3-index slice
<similar errors omitted>
slice3err.go:21: error: final index required in 3-index slice
slice3err.go:46: error: invalid 3-index slice of string
<similar errors omitted>
slice3err.go:57: error: inverted slice range
<similar errors omitted>
slice3err.go:62: error: invalid slice index: capacity less than length
slice3err.go:64: error: invalid slice index: capacity less than start
slice3err.go:65: error: invalid slice index: capacity less than start
slice3err.go:66: error: invalid slice index: capacity less than start
slice3err.go:68: error: invalid slice index: capacity less than length
slice3err.go:70: error: invalid slice index: capacity less than start
slice3err.go:80: error: invalid slice index: capacity less than length
slice3err.go:82: error: invalid slice index: capacity less than start
slice3err.go:83: error: invalid slice index: capacity less than start
slice3err.go:84: error: invalid slice index: capacity less than start
slice3err.go:86: error: invalid slice index: capacity less than length
slice3err.go:88: error: invalid slice index: capacity less than start
slice3err.go:99: error: array index out of bounds
<similar errors omitted>
slice3err.go:106: error: invalid slice index: capacity less than length
slice3err.go:107: error: invalid slice index: capacity less than start
slice3err.go:118: error: invalid slice index: capacity less than length
slice3err.go:119: error: invalid slice index: capacity less than start
syntax/semi1.go:10: error: missing '{' after if clause
syntax/semi1.go:10: error: reference to undefined name 'x'
syntax/semi1.go:10: error: reference to undefined name 'y'
syntax/semi1.go:12: error: reference to undefined name 'z'
syntax/semi2.go:10: error: missing '{' after switch clause
syntax/semi2.go:10: error: reference to undefined name 'x'
syntax/semi3.go:10: error: missing '{' after for clause
syntax/semi3.go:10: error: reference to undefined name 'x'
syntax/semi3.go:10: error: reference to undefined name 'y'
syntax/semi3.go:10: error: reference to undefined name 'z'
syntax/semi3.go:12: error: reference to undefined name 'z'
syntax/semi4.go:11: error: missing '{' after for clause
syntax/semi4.go:10: error: reference to undefined name 'x'
syntax/semi4.go:12: error: reference to undefined name 'z'
typecheck.go:12: error: reference to undefined name 'b'
typecheck.go:17: error: reference to undefined name 'c'
typecheck.go:11: error: use of undefined type 'b'
typecheck.go:16: error: not enough arguments
typecheck.go:17: error: not enough arguments

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/41520044
2013-12-12 17:18:12 -08:00
Ian Lance Taylor
bbf762582f test: adjust issue4618 for gccgo allocation behaviour
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/41550044
2013-12-12 17:14:05 -08:00
Ian Lance Taylor
3ddd2eaebc test: disable large type/stack frame tests for gccgo
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/40370052
2013-12-12 17:13:46 -08:00
Ian Lance Taylor
d12b08d228 test: disable a couple of precise GC tests for gccgo
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/41610043
2013-12-12 17:13:27 -08:00
Ian Lance Taylor
6ae3780503 test: don't rely on order of unrelated imports in bug191
There is no necessary relationship between the imports of the
packages a and b, and gccgo happens to import them in a
different order, leading to different output.  This ordering
is not the purpose of the test in any case.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/40400043
2013-12-10 12:05:37 -08:00
Ian Lance Taylor
9bea6f3b2c test: add some test cases that were miscompiled by gccgo
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/40310043
2013-12-10 10:47:30 -08:00
Carl Shapiro
f574726f16 runtime: check for signed zero in printfloat
Fixes #6899

R=golang-dev, r, cshapiro, iant, rsc
CC=golang-dev
https://golang.org/cl/38120043
2013-12-09 17:51:30 -08:00
Rémy Oudompheng
8d6bc666fb cmd/gc: qualified embedded fields with owner package.
R=rsc
CC=golang-dev
https://golang.org/cl/14188044
2013-10-02 12:27:33 -04:00
Robert Griesemer
81dc0b65b2 test/fixedbugs/bug295.go: fix test in anticipation of future gc fix
See also issue 6428.

R=r, rsc
CC=golang-dev
https://golang.org/cl/13794043
2013-09-20 09:40:56 -07:00
Ian Lance Taylor
1325732ab9 test: add a test that causes gccgo to get a failure at link time
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/13788043
2013-09-19 15:20:39 -07:00
Ian Lance Taylor
4182889a09 test: add a test that gccgo failed to compile
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/13632057
2013-09-18 16:30:38 -07:00
Ian Lance Taylor
45e214fb62 test: add a test that gccgo failed to compile
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/13451045
2013-09-18 15:47:50 -07:00
Ian Lance Taylor
e27b0cdfc4 test: add a test that crashed gccgo
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/13683046
2013-09-17 18:06:58 -07:00
Russ Cox
51266761fd cmd/gc: fix divide by zero error in compiler
Fixes #6399.

R=ken2
CC=golang-dev
https://golang.org/cl/13253055
2013-09-16 14:22:37 -04:00
Rémy Oudompheng
9c21ce54dd cmd/6g: handle very wide offsets.
Fixes #6036.

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/12992043
2013-09-09 20:36:19 +02:00
Russ Cox
933d7129c0 cmd/gc: squelch spurious "invalid recursive type" error
R=ken2
CC=golang-dev
https://golang.org/cl/13512047
2013-09-09 13:03:59 -04:00
Russ Cox
903c2fda18 cmd/gc: diagnose '_ = nil' better
Fixes #6004.

R=ken2
CC=golang-dev
https://golang.org/cl/13616044
2013-09-09 12:49:39 -04:00
Russ Cox
8d530f2472 cmd/gc: show package name in 'imported and not used' error
Fixes #5957.

R=ken2
CC=golang-dev
https://golang.org/cl/13250046
2013-09-09 12:21:09 -04:00
Russ Cox
a7d8b35aac cmd/gc: fix 'internal error: typename ideal bool'
Fixes #6298.

R=ken2
CC=golang-dev
https://golang.org/cl/13624043
2013-09-09 12:00:16 -04:00
Rémy Oudompheng
c929ac5f7e cmd/gc: add missing typecheck for walk-generated constants.
Fixes #6131.

R=golang-dev, daniel.morsing, rsc
CC=golang-dev
https://golang.org/cl/12800045
2013-09-06 16:55:30 -04:00
Daniel Morsing
280c8b90e2 cmd/gc: make method names for function scoped types unique
Types in function scope can have methods on them if they embed another type, but we didn't make the name unique, meaning that 2 identically named types in different functions would conflict with eachother.

Fixes #6269.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13326045
2013-08-29 16:48:44 +02:00
Rémy Oudompheng
66c8935f73 cmd/gc: fix detection of initialization loop.
The compiler computes initialization order by finding
a spanning tree between a package's global variables.
But it does so by walking both variables and functions
and stops detecting cycles between variables when they
mix with a cycle of mutually recursive functions.

Fixes #4847.

R=golang-dev, daniel.morsing, rsc
CC=golang-dev
https://golang.org/cl/9663047
2013-08-29 10:16:09 +02:00
Rémy Oudompheng
a9e119ac70 cmd/gc: fix method values whose receiver is an unnamed interface.
Fixes #6140.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/13083043
2013-08-29 10:00:58 +02:00
Rémy Oudompheng
a85cfbd433 cmd/gc: tag builtin error, byte, rune to avoid exporting them.
Fixes #5910.
Fixes #6260.

R=golang-dev, daniel.morsing
CC=golang-dev
https://golang.org/cl/13257044
2013-08-27 21:18:32 +02:00
Rémy Oudompheng
4fc7ff497d cmd/5g: avoid clash between R13 and F3 registers.
Fixes #6247.

R=golang-dev, lucio.dere, bradfitz
CC=golang-dev
https://golang.org/cl/13216043
2013-08-27 21:09:16 +02:00
Keith Randall
36f223dace runtime: Better test tracebackability of jmpdefer when running a nil defer.
R=bradfitz, dvyukov
CC=golang-dev
https://golang.org/cl/12536046
2013-08-09 15:27:45 -07:00
Ian Lance Taylor
58845656e8 test: update bug086.go for current gccgo behaviour
bug086.go:14:1: error: missing return at end of function

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/12697043
2013-08-09 08:43:19 -07:00
Rick Arnold
66e8471391 cmd/gc: make missing package error fatal
No longer continue assuming package main.

Fixes #4776.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/12677043
2013-08-09 16:05:40 +10:00
Russ Cox
1f4d58ad5d cmd/gc: move large stack variables to heap
Individual variables bigger than 10 MB are now
moved to the heap, as if they had escaped on
their own.

This avoids ridiculous stacks for programs that
do things like
        x := [1<<30]byte{}
        ... use x ...

If 10 MB is too small, we can raise the limit.

Fixes #6077.

R=ken2
CC=golang-dev
https://golang.org/cl/12650045
2013-08-08 13:46:30 -04:00
Keith Randall
a97a91de06 runtime: Record jmpdefer's argument size.
Fixes bug 6055.

R=golang-dev, bradfitz, dvyukov, khr
CC=golang-dev
https://golang.org/cl/12536045
2013-08-07 14:03:50 -07:00
Rémy Oudompheng
49da9a8e44 cmd/gc: fix inlining of unnamed structs with embedded fields.
Update #5910.

R=golang-dev, daniel.morsing, rsc
CC=golang-dev
https://golang.org/cl/11373044
2013-08-05 22:09:53 +02:00
Russ Cox
27d17255db cmd/gc: insert \n at end of every input file
Not just the first one.

Fixes #5433.
Fixes #5913.

R=ken2
CC=golang-dev
https://golang.org/cl/12028049
2013-07-30 10:27:08 -04:00
Russ Cox
14062efb16 runtime: handle runtime.Goexit during init
Fixes #5963.

R=golang-dev, dsymonds, dvyukov
CC=golang-dev
https://golang.org/cl/11879045
2013-07-26 13:54:44 -04:00