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Commit Graph

6569 Commits

Author SHA1 Message Date
Marvin Stenger
550b7ccf77 cmd/link/internal/ld: removed some uses of stringsCompare
Only one use of stringsCompare is left. Cannot simply be replaced by
strings.Compare for bootstrapping reasons I guess.
Moving the function away from util.go to the actual destination data.go
also would not help much. So I left this one unchanged for readability and convenience.

Change-Id: I60d22fec0be8f8c47c80586436f9a550af59194e
Reviewed-on: https://go-review.googlesource.com/14953
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-24 15:05:04 +00:00
Marvin Stenger
ffe743945f cmd/compile/internal/gc: move functions from util.go to lex.go
Moves the functions:
        isSpace(int) bool
        isAlpha(int) bool
        isDigit(int) bool
        isAlnum(int) bool
        plan9quote(string) string

Passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I6f946981abb6f29b047ad90d5c117847e826789f
Reviewed-on: https://go-review.googlesource.com/14952
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-24 14:45:28 +00:00
Marvin Stenger
d08f34e744 cmd/compile/internal/gc: convert return values from int to bool
Passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I895350987661c1855803d1594dbab16068f8d1bc
Reviewed-on: https://go-review.googlesource.com/14873
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-24 12:54:22 +00:00
Shenghou Ma
2c96e5d2fc cmd/dist: fix build after "go test" argument order change
Change-Id: I332cd4a4b48cbb52d2beeb16c4a24833bb7069d7
Reviewed-on: https://go-review.googlesource.com/14890
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-23 23:10:14 +00:00
Rob Pike
6acb4d944d cmd/go: fix processing of flags for test binaries.
The usage message says:

	test [-c] [-i] [build and test flags] [packages] [flags for test binary]

but this was not what was implemented. Instead, after packages are named,
flag processing continues, which makes it impossible, for example, to pass
to the binary a flag with the same name as a test flag. This was triggered
by the -v flag in glog.

Consider this test:

package pkg

... imports ...

var v = flag.Int("v", 0, "v flag")

func TestFoo(t *testing.T) {
	if *v != 7 { log.Fatal(*v) }
}

Attempting to run this test with go test pkg -v=7 would give a usage
message. This change allows it. In fact it allows

	go test -v pkg -v=7

The solution is to implement the usage message. One compatibility
issue is that flags after the package name are no longer processed
as test flags, so this no longer works:

	go test foo -cover

One must write

	go test -cover foo

I do not think this is onerous but it must be called out in the
release notes.

Fixes #12177.

Change-Id: Ib9267884b47a6b0c183efa888ec78333272113aa
Reviewed-on: https://go-review.googlesource.com/14826
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-23 21:21:40 +00:00
Ilya Tocar
5cf281a9b7 runtime: optimize duffcopy on amd64
Use movups to copy 16 bytes at a time.
Results (haswell):

name            old time/op  new time/op  delta
CopyFat8-48     0.62ns ± 3%  0.63ns ± 3%     ~     (p=0.535 n=20+20)
CopyFat12-48    0.92ns ± 2%  0.93ns ± 3%     ~     (p=0.594 n=17+18)
CopyFat16-48    1.23ns ± 2%  1.23ns ± 2%     ~     (p=0.839 n=20+19)
CopyFat24-48    1.85ns ± 2%  1.84ns ± 0%   -0.48%  (p=0.014 n=19+20)
CopyFat32-48    2.45ns ± 0%  2.45ns ± 1%     ~     (p=1.000 n=16+16)
CopyFat64-48    3.30ns ± 2%  2.14ns ± 1%  -35.00%  (p=0.000 n=20+18)
CopyFat128-48   6.05ns ± 0%  3.98ns ± 0%  -34.22%  (p=0.000 n=18+17)
CopyFat256-48   11.9ns ± 3%   7.7ns ± 0%  -35.87%  (p=0.000 n=20+17)
CopyFat512-48   23.0ns ± 2%  15.1ns ± 2%  -34.52%  (p=0.000 n=20+18)
CopyFat1024-48  44.8ns ± 1%  29.8ns ± 2%  -33.48%  (p=0.000 n=17+19)

Change-Id: I8a78773c656d400726a020894461e00c59f896bf
Reviewed-on: https://go-review.googlesource.com/14836
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2015-09-22 15:02:37 +00:00
Robert Griesemer
c396c047c6 src/cmd/compile/internal/gc: remove now unnecessary restriction on float exponent parsing
https://go-review.googlesource.com/#/c/13778/ fixed this issue in math/big.
Remove restriction in compiler.

Fixes #11326.

Change-Id: I1429d0dd0d79431706c65616413373fff58f081e
Reviewed-on: https://go-review.googlesource.com/14830
Reviewed-by: Rob Pike <r@golang.org>
2015-09-22 00:22:49 +00:00
Rob Pike
980cb0caf2 cmd/asm: fix crash triggered by nested #define
A panic was in place for an impossible condition that turned
out to be possible if one used a macro to define a macro.

Another go-fuzz "win".

Fixes #12654.

Change-Id: I0a7bb0f0eabb260c986bf7a2288860c78d8db1af
Reviewed-on: https://go-review.googlesource.com/14777
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-21 22:38:39 +00:00
Håvard Haugen
bca70a66a7 cmd/compile/internal/gc: use sort.Interface for reflect methods
Generate slices of method *Sig(nature)s instead of linked lists.
Remove custom lsort function in favor of sort.Interface.

Eliminates another use of stringsCompare.

Passes go build -a -toolexec 'toolstash -cmp' std cmd.

Change-Id: I9ed1664b7f55be9e967dd7196e396a76f6ea3422
Reviewed-on: https://go-review.googlesource.com/14559
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-21 22:27:53 +00:00
Rob Pike
ebd96933c1 cmd/vet: build the binary only once in the test
Recent changes caused vet to build the binary for each Test function.
This is wasteful and will become only more so as more tests are added.
Use testing.Main to build only once.

Verified that compilation errors still appear if the binary cannot be
built.

Before:
	real	0m11.169s
	user	0m18.328s
	sys	0m2.152s

After:
	real	0m5.132s
	user	0m9.404s
	sys	0m1.168s

Of course if the compiler were fast we might not notice, but vet is
a big program and growing bigger all the time, as are the tests.

Change-Id: I209a8fdcace94bc5cec946f5dd365d7191f44c02
Reviewed-on: https://go-review.googlesource.com/14822
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-21 20:20:32 +00:00
Rob Pike
7454f53604 cmd/vet: copy changes from golang.org/x/tools to cmd/vet
This means bringing over the examples flag and sorting doc.go.

Subsequent changes will generalize the examples flag to a general
test naming flag, but let's start with the original code.

No more changes to golang.org/x/tools please. This should not have
happened (and letting it happen was partly my fault).

Change-Id: Ia879ea1d15d82372df14853f919263125dfb7b96
Reviewed-on: https://go-review.googlesource.com/14821
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-21 17:48:38 +00:00
Rob Pike
4e99ed6fef cmd/doc: don't drop const/var block if first entry is unexported
The code assumed that if the first entry was unexported, all the
entries were. The fix is simple: delete a bunch of code.

Fixes #12286.

Change-Id: Icb09274e99ce97df4d8bddbe59d17a5c0622e4c6
Reviewed-on: https://go-review.googlesource.com/14780
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-21 16:42:09 +00:00
Håvard Haugen
6d0178359f cmd/compile/internal/gc: eliminate stringsCompare for stackvar sorting
Passes go build -a -toolexec 'toolstash -cmp' std cmd.

Change-Id: I2a87d31da74affdf3d0f358d0efdb3f1c646d917
Reviewed-on: https://go-review.googlesource.com/14759
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-20 21:07:12 +00:00
Brad Fitzpatrick
e31114dab0 cmd/dist: skip spectralnorm shootout test on the linux-arm-arm5 builder
Temporary fix to get the arm5 builder happy again.

Without hardware floating point, this test takes over 20 minutes to
run.

A proper solution would probably be to run all the benchmark tests,
but with a much lower iteration count, just to exercise the code.

Updates golang/go#12688

Change-Id: Ie56c93d3bf2a5a693a33217ba1b1df3c6c856442
Reviewed-on: https://go-review.googlesource.com/14775
Reviewed-by: Dave Cheney <dave@cheney.net>
Reviewed-by: Minux Ma <minux@golang.org>
2015-09-19 05:50:43 +00:00
Dave Cheney
3e476827a6 cmd/compile/internal/gc: move intLiteral to gc.Node
intLiteral is used by the gins wrappers in arm64, ppc64 and
mips64. Refactor the function to a method on gc.Node and update
the callers to use the common copy.

Change-Id: I2db90d801a9cb18f8526eb921e13daa75ca1cf6f
Reviewed-on: https://go-review.googlesource.com/14744
Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-19 04:38:02 +00:00
Brad Fitzpatrick
1536c2e0f6 cmd/dist: shard shootout test units
Instead of a 10 second test unit, make it 13 sub-second ones. This
takes advantage of multiple builders better.

Fixes #12623

Change-Id: I3fb2eb02f899f25749e34b546b9d41b742a746cd
Reviewed-on: https://go-review.googlesource.com/14738
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-18 18:32:56 +00:00
Rob Pike
49065cbfe4 asm: handle EOF better
Add some error catches to prevent looping at EOF.
Also give better diagnostics.
Also add tests for these cases.

Fixes #12656.

Change-Id: I1355fc149b71c868e740bfa53de29c25d160777d
Reviewed-on: https://go-review.googlesource.com/14710
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-18 18:09:15 +00:00
Rob Pike
49580db149 asm: give error message for unadorned symbol reference
On amd64, the program

TEXT    foo0(SB),7,$-8
    ADDQ R520, R1
    RET

used to trigger this error because R520 was being passed through to obj:

asm: doasm: notfound ft=23 tt=23 00000 (x.s:2)	ADDQ	0, 0 23 23

Now it gets this one, as it is indeed a parse error:

x.s:2: illegal addressing mode for symbol R520

This couldn't be fixed until #12632 had been fixed for arm64.

Fixes #12470.

Change-Id: I19830c4ae9337887b93f85d9a239e2b89dbb2219
Reviewed-on: https://go-review.googlesource.com/14691
Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>
2015-09-18 18:08:52 +00:00
Dave Cheney
d5fe165ca0 cmd/compile: convert externdecl to []*Node
This one of a set of changes to make the transition away from NodeList
easier by removing cases in which NodeList doesn't act semi-trivially like a
[]*Node.

This CL was originally prepared by Josh Bleecher Snyder <josharian@gmail.com>.

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: Ifd73501e06e8ea5efd028b6d473b3e5d1b07a5ac
Reviewed-on: https://go-review.googlesource.com/14570
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-18 07:15:52 +00:00
Shenghou Ma
1fd78e1f60 cmd/go: provide full path as os.Args[0] when invoking tools
cmd/dist needs to re-exec or open itself to detect GOARM (CL 3973) and
detect host machine endianness (CL 14460).

Change-Id: If6438831ab0715ba8e236d64bb2c7c1bde1470aa
Reviewed-on: https://go-review.googlesource.com/14476
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-18 01:55:22 +00:00
Håvard Haugen
eddd7ff3cd cmd/compile/internal/gc: avoid stringsCompare for string literals
Passes go build -a -toolexec 'toolstash -cmp' std cmp.

Change-Id: I7567355d405c976c5d91a0cd4e9486ebeb348dbb
Reviewed-on: https://go-review.googlesource.com/14682
Reviewed-by: Dave Cheney <dave@cheney.net>
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-18 00:23:34 +00:00
Håvard Haugen
f482a0f023 cmd/compile/internal/gc: add unit test for cmpstackvar
A followup CL will rewrite listsort to use the new cmpstackvarlt and
change cmpstackvar to avoid stringsCompare.

Change-Id: Idf0857a3bd67f9e2243ba82aa0bff510612927c3
Reviewed-on: https://go-review.googlesource.com/14611
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-17 23:46:38 +00:00
Marvin Stenger
2dc63d1544 cmd/compile/internal/gc: cleaning; use range when appropriate
Made use of range statement in for loops.
Cleaning along the way:
-remove unnecessary variable declarations
-rename variables
-remove dead code

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: Ife8c2a98482a81ba91f5bbb65142d9f3dc46d6ee
Reviewed-on: https://go-review.googlesource.com/14379
Run-TryBot: Dave Cheney <dave@cheney.net>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-17 23:23:01 +00:00
Aram Hăvărneanu
61a3ebed55 cmd/asm/internal/asm: add aliases for ARM64 condition codes
Add CS as an alias for HS, and CC as an alias for LO, otherwise

	CSINV	CS, R1, R2, R3

was interpreted as

	CSINV	0, R1, R2, R3

Also fix the corresponding faulty test.

Fixes #12632
Updates #12470

Change-Id: I974cfc7e5ced682d4754ba09b0b102cb08a46567
Reviewed-on: https://go-review.googlesource.com/14680
Reviewed-by: Rob Pike <r@golang.org>
2015-09-17 15:11:08 +00:00
Michael Hudson-Doyle
9a6a8a0586 cmd/link: fix addition of -Wl,-z,relro
Not sure how I managed to do this, or get it past review.

Change-Id: I141b97ef8e09dcc9c910c45493a584a3dced2b28
Reviewed-on: https://go-review.googlesource.com/14634
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-16 21:16:13 +00:00
Ilya Tocar
2421c6e3df runtime: optimize duffzero for amd64.
Use MOVUPS to zero 16 bytes at a time.

results (haswell):

name             old time/op  new time/op  delta
ClearFat8-48     0.62ns ± 2%  0.62ns ± 1%     ~     (p=0.085 n=20+15)
ClearFat12-48    0.93ns ± 2%  0.93ns ± 2%     ~     (p=0.757 n=19+19)
ClearFat16-48    1.23ns ± 1%  1.23ns ± 1%     ~     (p=0.896 n=19+17)
ClearFat24-48    1.85ns ± 2%  1.84ns ± 0%   -0.51%  (p=0.023 n=20+15)
ClearFat32-48    2.45ns ± 0%  2.46ns ± 2%     ~     (p=0.053 n=17+18)
ClearFat40-48    1.99ns ± 0%  0.92ns ± 2%  -53.54%  (p=0.000 n=19+20)
ClearFat48-48    2.15ns ± 1%  0.92ns ± 2%  -56.93%  (p=0.000 n=19+20)
ClearFat56-48    2.46ns ± 1%  1.23ns ± 0%  -49.98%  (p=0.000 n=19+14)
ClearFat64-48    2.76ns ± 0%  2.14ns ± 1%  -22.21%  (p=0.000 n=17+17)
ClearFat128-48   5.21ns ± 0%  3.99ns ± 0%  -23.46%  (p=0.000 n=17+19)
ClearFat256-48   10.3ns ± 4%   7.7ns ± 0%  -25.37%  (p=0.000 n=20+17)
ClearFat512-48   20.2ns ± 4%  15.0ns ± 1%  -25.58%  (p=0.000 n=20+17)
ClearFat1024-48  39.7ns ± 2%  29.7ns ± 0%  -25.05%  (p=0.000 n=19+19)

Change-Id: I200401eec971b2dd2450c0651c51e378bd982405
Reviewed-on: https://go-review.googlesource.com/14408
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-16 16:07:44 +00:00
Tormod Erevik Lea
f0ea976ee4 cmd/go: indent first test binary flag description for go test -h
Fixes #12642

Change-Id: I0b94437055b7d444f5caf7ea310e85357c467bdf
Reviewed-on: https://go-review.googlesource.com/14612
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-16 14:21:29 +00:00
Håvard Haugen
7c61d24f97 cmd/compile/internal/gc: remove dead code
Found with https://github.com/remyoudompheng/go-misc/deadcode:

deadcode: walk.go:2228:1: applywritebarrier_bv is unused
deadcode: subr.go:355:1: gethunk is unused
deadcode: subr.go:1991:1: localexpr is unused
deadcode: dcl.go:82:1: poptodcl is unused
deadcode: swt.go:810:1: dumpcase is unused
deadcode: esc.go:251:1: satAdd8 is unused
deadcode: esc.go:387:1: outputsPerTag is unused
deadcode: obj.go:190:1: duint64 is unused
deadcode: obj.go:287:1: dstringptr is unused
deadcode: plive.go:95:1: xmalloc is unused
deadcode: plive.go:119:1: freeblock is unused

followed by

deadcode: go.go:633:1: hunk is unused
deadcode: go.go:635:1: nhunk is unused
deadcode: go.go:637:1: thunk is unused

after 'gethunk' was removed.

Some dead code in bv.go, mparith3.go, and dcl.go was left as is.

Passes go build -a -toolexec 'toolstash -cmp' std cmd.

Change-Id: Ia63519adedc8650d7095572ddd454fd923d3204d
Reviewed-on: https://go-review.googlesource.com/14610
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-16 00:25:04 +00:00
Håvard Haugen
c1ad904bdb cmd/compile/internal/gc: remove unnecessary stringsCompare
Remove several uses of stringsCompare.

Passes go build -a -toolexec 'toolstash -cmp' std cmd.

Change-Id: I3f2323df2ad8c03bad77e0a91d6e2e714803705b
Reviewed-on: https://go-review.googlesource.com/14556
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-16 00:08:58 +00:00
Ian Lance Taylor
64ad58768e cmd/go: don't run TestIssue7573 if cgo not supported
Fixes #12629.

Change-Id: Iee96dc4f806a38f3cd8e065b8d0d5f682bb7e29b
Reviewed-on: https://go-review.googlesource.com/14597
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-15 21:15:59 +00:00
Rob Pike
448f84a43a internal/obj: protect against nil addr.Sym
This has been the root cause of a number of crashes caused by
fuzz throwing modem noise at the assembler, which in turn attempts
to print diagnostics but instead just gets crashes.

Fixes #12627.

Change-Id: I72c2da79d8eb240e1a37aa6140454c552b05e0f1
Reviewed-on: https://go-review.googlesource.com/14595
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-15 20:56:39 +00:00
Robert Griesemer
dace9397b1 src/cmd/compile/internal/gc: fix type assertion in overflow check
Fixes #11600.

Change-Id: I8871d4e525168fed35115855483a237bbd6e5445
Reviewed-on: https://go-review.googlesource.com/14596
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2015-09-15 19:50:09 +00:00
Keith Randall
731bdc5115 runtime: fix aeshash of empty string
Aeshash currently computes the hash of the empty string as
hash("", seed) = seed.  This is bad because the hash of a compound
object with empty strings in it doesn't include information about
where those empty strings were.  For instance [2]string{"", "foo"}
and [2]string{"foo", ""} might get the same hash.

Fix this by returning a scrambled seed instead of the seed itself.
With this fix, we can remove the scrambling done by the generated
array hash routines.

The test also rejects hash("", seed) = 0, if we ever thought
it would be a good idea to try that.

The fallback hash is already OK in this regard.

Change-Id: Iaedbaa5be8d6a246dc7e9383d795000e0f562037
Reviewed-on: https://go-review.googlesource.com/14129
Reviewed-by: jcd . <jcd@golang.org>
2015-09-15 17:51:23 +00:00
Rob Pike
173bf3487f asm: more early returns on errors
More protection against random input bytes.

Fixes #12614.

Change-Id: Ie9f817de1376a10bb80b22ecee3bae4f1d26cc6c
Reviewed-on: https://go-review.googlesource.com/14563
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-15 16:10:05 +00:00
Marvin Stenger
211cdf1e00 cmd/compile/internal/gc: cleaning lex.go
Cleaning along the way:
-convert variable types from int to bool
-remove unnecessary functions
-remove unnecessary type conversion
-remove unnecessary variable declarations
-transform struct{string,string} with lookup to map[string]string

This change passes go build -toolexec 'toolstash -cmp' -a std.

Change-Id: I259728fe4afd7f23b67f08fab856ce0abee57b21
Reviewed-on: https://go-review.googlesource.com/14435
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-15 15:55:56 +00:00
Dave Cheney
af261a5c85 cmd/go: skip external tests on linux/arm
CL 13166 skipped external tests on freebsd/arm with the rationale
that the cmd/go tests are not architecture dependent.

This CL does the same for linux/arm to help linux/arm users who are
building Go on platforms like the Raspberry Pi where ./all.bash
frequently times out due to a lack of resources.

Change-Id: Iae1a25b63b74200da3f1b5637da0fa5c2dceeb83
Reviewed-on: https://go-review.googlesource.com/13342
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-15 03:57:49 +00:00
Håvard Haugen
b9dbb030d5 cmd/compiler/internal/gc: make Type.Copyto a []*Node
Passes go build -a -toolexec 'toolstash -cmp' std cmd

Change-Id: Ief4613cfb341172a85e3a894f44fb2bb308c7b55
Reviewed-on: https://go-review.googlesource.com/14554
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-14 04:51:46 +00:00
Håvard Haugen
4c96e7b79b cmd/compile/internal/gc: clean up errcmp
Change-Id: Id07811a25bf4aa3ff834e7254a3dfb04522b2926
Reviewed-on: https://go-review.googlesource.com/14174
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-09-13 23:50:25 +00:00
Dave Cheney
ea4e321d4d cmd/compile/internal/gc: avoid allocation in bnum
Although bnum was being called with a Bits value, a limitation
of the escape analyser (golang/go#12588) meant that taking the
address of the Bits.b array in the range statement caused the
formal parameter to escape to the heap.

Passing the a pointer to a Bits, as with all the other Bits helper
methods avoids the allocation.

Before:
BenchmarkBnum1-4        20000000                69.6 ns/op            32 B/op          1 allocs/op

After:
BenchmarkBnum1-4        100000000               10.1 ns/op             0 B/op          0 allocs/op

Change-Id: I673bd57ddc032ee67d09474156d795fb1ba72018
Reviewed-on: https://go-review.googlesource.com/14501
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-12 02:55:38 +00:00
Rob Pike
67ddae87b9 all: use one 'l' when cancelling everywhere except Solaris
Fixes #11626.

Change-Id: I1b70c0844473c3b57a53d7cca747ea5cdc68d232
Reviewed-on: https://go-review.googlesource.com/14526
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-11 18:31:51 +00:00
Didier Spezia
41713b4d2b cmd/doc: slice/map literals janitoring
Simplify slice/map literal expression.
Caught with gofmt -d -s

Change-Id: I7f38ef9fb528e2fd284bd0f190fbdf4a91956e55
Reviewed-on: https://go-review.googlesource.com/13834
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-11 14:04:46 +00:00
Didier Spezia
90f69259ec cmd/compile/internal/ppc64: map/slice literals janitoring
Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s
Checked that the result can still be compiled with Go 1.4.

Change-Id: I201cd90fdfb8de2971c46ad7fce64111152b697e
Reviewed-on: https://go-review.googlesource.com/13832
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-11 12:59:18 +00:00
Rob Pike
5e89acb580 cmd/asm: fix some fuzz bugs
One (12466) was an actual logic error, backing up when there was
nothing there. The others were due to continuing to process an
instruction when it cannot work.

Methodically stop assembling an instruction when it's not going to
succeed.

Fixes #12466.
Fixes #12467.
Fixes #12468.

Change-Id: I88c568f2b9c1a8408043b2ac5a78f5e2ffd62abd
Reviewed-on: https://go-review.googlesource.com/14498
Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-09-11 00:52:21 +00:00
Shenghou Ma
3f2baa3e60 cmd/dist: re-enable GOARM auto-detection
cmd/dist will re-exec itself to detect VFP support at run-time.

Fixes #9732, #12548.

Change-Id: I9ad0c5c7fa3e97bd79a32da372e1a962565bb3af
Reviewed-on: https://go-review.googlesource.com/3973
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-10 22:43:07 +00:00
Didier Spezia
7d48573d46 cmd/internal/obj: map/slice literals janitoring
Simplify slice/map literal expressions.
Caught with gofmt -d -s, fixed with gofmt -w -s
Checked that the result can still be compiled with Go 1.4.

Change-Id: I0a6773d12200a7b43491f25f914335069a1fa5e8
Reviewed-on: https://go-review.googlesource.com/13833
Reviewed-by: Andrew Gerrand <adg@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-10 21:47:41 +00:00
Michael Hudson-Doyle
b0344e9fd5 cmd/internal/obj, cmd/link, runtime: a saner model for TLS on arm
this leaves lots of cruft behind, will delete that soon

Change-Id: I12d6b6192f89bcdd89b2b0873774bd3458373b8a
Reviewed-on: https://go-review.googlesource.com/14196
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-10 19:49:13 +00:00
Yao Zhang
b456aac388 cmd/objdump: skip TestDisasm* for mips64{,le}
Disassembler for mips64 is not supported yet.

Change-Id: Ie923dd1e37fed47fc395b9d1cd9194e55020bee5
Reviewed-on: https://go-review.googlesource.com/14459
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-10 18:27:09 +00:00
Yao Zhang
1153737e86 cmd/go: skip part of TestNoteReading for mips64{,le}
Because external linking is not supported for now.

Change-Id: Icdd8f3cb3bfb781a990e529fce9129d91e98a9ec
Reviewed-on: https://go-review.googlesource.com/14457
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-09-10 18:26:30 +00:00
Russ Cox
d8384e9a8f cmd/vet: diagnose plain assignment in copylock detector
It went out of its way to look for implicit assignments
but never checked explicit assignments.

This detects the root bug for #12099.

Change-Id: I6a6e774cc38749ea8be7cfd58ba6421247b67000
Reviewed-on: https://go-review.googlesource.com/13646
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Rob Pike <r@golang.org>
2015-09-10 16:55:51 +00:00
Dave Cheney
81a4bbffbf cmd/go: use RawToken to parse remote package metadata
CL 14315 broke the tests for parsing loosely formed remote package
metadata. Switch the parsing to use RawToken to recover the previous
behaviour that Token provided.

It could be argued that the parser should be stricter, but as remote
metadata has been readable with the parser for several years, it is
safer to change the parser to continue to accept the samples provided
in the test cases.

Change-Id: I2a3ba1757d3cff53b1a1c4386276955bb46cf8cd
Reviewed-on: https://go-review.googlesource.com/14482
Reviewed-by: Minux Ma <minux@golang.org>
Run-TryBot: Minux Ma <minux@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-09-10 07:30:43 +00:00