delta/go-git.git/src/runtime/internal, branch dev.debug

cmd/internal/obj/mips: add support of LLV, SCV, NOOP instructions

2017-05-16T17:15:11+00:00

LLV and SCV are 64-bit load-linked and store-conditional. They
were used in runtime as #define WORD. Change them to normal
instruction form.

NOOP is hardware no-op. It was written as WORD $0. Make a name
for it for better disassembly output.

Fixes #12561.
Fixes #18238.

Change-Id: I82c667ce756fa83ef37b034b641e8c4366335e83
Reviewed-on: https://go-review.googlesource.com/40297
Reviewed-by: Minux Ma 
Run-TryBot: Minux Ma 
TryBot-Result: Gobot Gobot

runtime/internal/atomic: Remove unnecessary checks for GOARCH_ppc64

2017-03-22T18:14:41+00:00

Starting in go1.9, the minimum processor requirement for ppc64 is POWER8. This
means the checks for GOARCH_ppc64 in asm_ppc64x.s can be removed, since we can
assume LBAR and STBCCC instructions (both from ISA 2.06) will always be
available.

Updates #19074

Change-Id: Ib4418169cd9fc6f871a5ab126b28ee58a2f349e2
Reviewed-on: https://go-review.googlesource.com/38406
Reviewed-by: Brad Fitzpatrick 
Reviewed-by: Lynn Boger 
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot

cmd/compile: intrinsics for math/bits.TrailingZerosX

2017-03-16T02:44:16+00:00

Implement math/bits.TrailingZerosX using intrinsics.

Generally reorganize the intrinsic spec a bit.
The instrinsics data structure is now built at init time.
This will make doing the other functions in math/bits easier.

Update sys.CtzX to return int instead of uint{64,32} so it
matches math/bits.TrailingZerosX.

Improve the intrinsics a bit for amd64.  We don't need the CMOV
for <64 bit versions.

Update #18616

Change-Id: Ic1c5339c943f961d830ae56f12674d7b29d4ff39
Reviewed-on: https://go-review.googlesource.com/38155
Run-TryBot: Keith Randall 
TryBot-Result: Gobot Gobot 
Reviewed-by: Robert Griesemer

runtime/internal/atomic: crash on unaligned 64-bit ops on 32-bit MIPS

2016-11-22T02:05:07+00:00

This check was originally implemented by Vladimir in
https://go-review.googlesource.com/c/31489/1/src/runtime/internal/atomic/atomic_mipsx.go#30
but removed due to my comment (Sorry!). This CL adds it back.

Fixes #17786.

Change-Id: I7ff4c2539fc9e2afd8199964b587a8ccf093b896
Reviewed-on: https://go-review.googlesource.com/33431
Run-TryBot: Cherry Zhang 
Reviewed-by: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot

runtime/internal/atomic: crash on unaligned 64-bit ops on 386 and ARM

2016-11-21T20:26:11+00:00

Updates #17786. Will fix mips(32) when the port is fully landed.

Change-Id: I00d4ff666ec14a38cadbcd52569b347bb5bc8b75
Reviewed-on: https://go-review.googlesource.com/33236
Run-TryBot: Cherry Zhang 
Reviewed-by: Ian Lance Taylor 
Reviewed-by: Brad Fitzpatrick

runtime/internal/atomic: add TestUnaligned64

2016-11-12T06:38:40+00:00

Add a variant of sync/atomic's TestUnaligned64 to
runtime/internal/atomic.

Skips the test on arm for now where it's currently failing.

Updates #17786

Change-Id: If63f9c1243e9db7b243a95205b2d27f7d1dc1e6e
Reviewed-on: https://go-review.googlesource.com/33159
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot 
Reviewed-by: Ian Lance Taylor

cmd/internal/sys, runtime/internal/sys: gofmt

2016-11-07T22:13:18+00:00

Change-Id: Ice8f3b42194852f7ee8f00f004e80014d1ea119b
Reviewed-on: https://go-review.googlesource.com/32875
Reviewed-by: Brad Fitzpatrick

runtime/internal/sys: add arch defs for GOARCH=mips{,le}

2016-11-03T23:28:28+00:00

Change-Id: I6288f1fca1ae4c64b3907af700811ee842053020
Reviewed-on: https://go-review.googlesource.com/31472
Reviewed-by: Ian Lance Taylor

sync/atomic: add support for GOARCH=mips{,le}

2016-11-03T22:48:09+00:00

Change-Id: I10f36710dd95b9bd31b3b82a3c32edcadb90ffa9
Reviewed-on: https://go-review.googlesource.com/31510
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot 
Reviewed-by: Cherry Zhang

runtime/internal/atomic: add GOARCH=mips{,le} support

2016-11-03T22:43:50+00:00

Change-Id: I99a48f719fd1a8178fc59787084a074e91c89ac6
Reviewed-on: https://go-review.googlesource.com/31489
Run-TryBot: Brad Fitzpatrick 
TryBot-Result: Gobot Gobot 
Reviewed-by: Cherry Zhang