Josh Bleecher Snyder
951f74c4d0
cmd/...: fix vet issues and cull dead code
...
Change-Id: Ied0eab872950793b34dd2268055b29c702b07e99
Reviewed-on: https://go-review.googlesource.com/9081
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
2015-04-18 01:47:28 +00:00
Aram Hăvărneanu
a6bade60b0
cmd/7g: remove loads that only load an immediate to be later used by ADD/SUB
...
Optimize the sequence:
MOV $imm, Rt
ADD Rt, Rs, Rd
into:
ADD $imm, Rs, Rd
Saves 66k in godoc.
Change-Id: I27b4aaa0ec80a59472fe2e5816efdf3db9c901ee
Reviewed-on: https://go-review.googlesource.com/8632
Reviewed-by: Minux Ma <minux@golang.org>
2015-04-16 13:31:02 +00:00
Shenghou Ma
63d72f6901
cmd/7g: enable peephole optimizer
...
Based on cmd/9g/peep.go.
Go 1 benchmark comparison:
benchmark old ns/op new ns/op delta
BenchmarkBinaryTree17 24328574000 18351639000 -24.57%
BenchmarkFannkuch11 17029365000 10817758000 -36.48%
BenchmarkFmtFprintfEmpty 291 223 -23.37%
BenchmarkFmtFprintfString 1073 799 -25.54%
BenchmarkFmtFprintfInt 1024 778 -24.02%
BenchmarkFmtFprintfIntInt 1654 1277 -22.79%
BenchmarkFmtFprintfPrefixedInt 1360 1083 -20.37%
BenchmarkFmtFprintfFloat 2272 1415 -37.72%
BenchmarkFmtManyArgs 5933 4742 -20.07%
BenchmarkGobDecode 53166003 38584736 -27.43%
BenchmarkGobEncode 37930156 30074874 -20.71%
BenchmarkGzip 1880638900 1286832100 -31.57%
BenchmarkGunzip 386343633 292194480 -24.37%
BenchmarkHTTPClientServer 237077 179776 -24.17%
BenchmarkJSONEncode 101731690 73116925 -28.13%
BenchmarkJSONDecode 344655360 241277600 -29.99%
BenchmarkMandelbrot200 28329778 12950809 -54.29%
BenchmarkGoParse 21670755 16554244 -23.61%
BenchmarkRegexpMatchEasy0_32 557 484 -13.11%
BenchmarkRegexpMatchEasy0_1K 4687 4832 +3.09%
BenchmarkRegexpMatchEasy1_32 539 483 -10.39%
BenchmarkRegexpMatchEasy1_1K 5100 5080 -0.39%
BenchmarkRegexpMatchMedium_32 796 651 -18.22%
BenchmarkRegexpMatchMedium_1K 233099 182047 -21.90%
BenchmarkRegexpMatchHard_32 13202 9897 -25.03%
BenchmarkRegexpMatchHard_1K 401027 303602 -24.29%
BenchmarkRevcomp 3837679666 2816546600 -26.61%
BenchmarkTemplate 440608300 324831040 -26.28%
BenchmarkTimeParse 1460 1019 -30.21%
BenchmarkTimeFormat 1609 1174 -27.04%
benchmark old MB/s new MB/s speedup
BenchmarkGobDecode 14.44 19.89 1.38x
BenchmarkGobEncode 20.24 25.52 1.26x
BenchmarkGzip 10.32 15.08 1.46x
BenchmarkGunzip 50.23 66.41 1.32x
BenchmarkJSONEncode 19.07 26.54 1.39x
BenchmarkJSONDecode 5.63 8.04 1.43x
BenchmarkGoParse 2.67 3.50 1.31x
BenchmarkRegexpMatchEasy0_32 57.38 66.05 1.15x
BenchmarkRegexpMatchEasy0_1K 218.47 211.91 0.97x
BenchmarkRegexpMatchEasy1_32 59.29 66.21 1.12x
BenchmarkRegexpMatchEasy1_1K 200.76 201.54 1.00x
BenchmarkRegexpMatchMedium_32 1.26 1.53 1.21x
BenchmarkRegexpMatchMedium_1K 4.39 5.62 1.28x
BenchmarkRegexpMatchHard_32 2.42 3.23 1.33x
BenchmarkRegexpMatchHard_1K 2.55 3.37 1.32x
BenchmarkRevcomp 66.23 90.24 1.36x
BenchmarkTemplate 4.40 5.97 1.36x
Fixes #10105 .
Change-Id: I353cc9fdf922e431821508c9dbbe4d9a85d64bd4
Signed-off-by: Shenghou Ma <minux@golang.org>
Reviewed-on: https://go-review.googlesource.com/8471
Reviewed-by: Dave Cheney <dave@cheney.net>
2015-04-08 08:16:54 +00:00
Aram Hăvărneanu
02c1a9d87d
cmd/7g: add ARM64 Go compiler, based on 9g
...
No peep optimizer yet.
Change-Id: Ifa5f993cd6ac5e34783c0df41faf772fbce96ae2
Reviewed-on: https://go-review.googlesource.com/7049
Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-16 18:45:26 +00:00
Shenghou Ma
f00c19add5
cmd/7g, cmd/7l, cmd/go: copy 9g/9l to 7g/7l, and build as tools
...
Kick start the upstreaming of the arm64 port. The only manual
change is cmd/go/pkg.go.
Change-Id: I0607ad045486f0998c4e21654b59276ca5348069
Reviewed-on: https://go-review.googlesource.com/7075
Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>
Run-TryBot: Aram Hăvărneanu <aram@mgk.ro>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-03-10 18:52:12 +00:00
