90f2fa0037
IMULL/DIVSS/DIVSD all can take the source operand from memory directly. And this CL implement that optimization. 1. The total size of pkg/linux_386 decreases about 84KB (excluding cmd/compile). 2. The go1 benchmark shows little regression in total (excluding noise). name old time/op new time/op delta BinaryTree17-4 3.29s ± 2% 3.27s ± 4% ~ (p=0.192 n=30+30) Fannkuch11-4 3.49s ± 2% 3.54s ± 1% +1.48% (p=0.000 n=30+30) FmtFprintfEmpty-4 45.9ns ± 3% 46.3ns ± 4% +0.89% (p=0.037 n=30+30) FmtFprintfString-4 78.8ns ± 3% 78.7ns ± 4% ~ (p=0.209 n=30+27) FmtFprintfInt-4 91.0ns ± 2% 90.3ns ± 2% -0.82% (p=0.031 n=30+27) FmtFprintfIntInt-4 142ns ± 4% 143ns ± 4% ~ (p=0.136 n=30+30) FmtFprintfPrefixedInt-4 181ns ± 3% 183ns ± 4% +1.40% (p=0.005 n=30+30) FmtFprintfFloat-4 404ns ± 4% 408ns ± 3% ~ (p=0.397 n=30+30) FmtManyArgs-4 601ns ± 3% 609ns ± 5% ~ (p=0.059 n=30+30) GobDecode-4 7.21ms ± 5% 7.24ms ± 5% ~ (p=0.612 n=30+30) GobEncode-4 6.91ms ± 6% 6.91ms ± 6% ~ (p=0.797 n=30+30) Gzip-4 398ms ± 6% 399ms ± 4% ~ (p=0.173 n=30+30) Gunzip-4 41.7ms ± 3% 41.8ms ± 3% ~ (p=0.423 n=30+30) HTTPClientServer-4 62.3µs ± 2% 62.7µs ± 3% ~ (p=0.085 n=29+30) JSONEncode-4 21.0ms ± 4% 20.7ms ± 5% -1.39% (p=0.014 n=30+30) JSONDecode-4 66.3ms ± 3% 67.4ms ± 1% +1.71% (p=0.003 n=30+24) Mandelbrot200-4 5.15ms ± 3% 5.16ms ± 3% ~ (p=0.697 n=30+30) GoParse-4 3.24ms ± 3% 3.27ms ± 4% +0.91% (p=0.032 n=30+30) RegexpMatchEasy0_32-4 101ns ± 5% 99ns ± 4% -1.82% (p=0.008 n=29+30) RegexpMatchEasy0_1K-4 848ns ± 4% 841ns ± 2% -0.77% (p=0.043 n=30+30) RegexpMatchEasy1_32-4 106ns ± 6% 106ns ± 3% ~ (p=0.939 n=29+30) RegexpMatchEasy1_1K-4 1.02µs ± 3% 1.03µs ± 4% ~ (p=0.297 n=28+30) RegexpMatchMedium_32-4 129ns ± 4% 127ns ± 4% ~ (p=0.073 n=30+30) RegexpMatchMedium_1K-4 43.9µs ± 3% 43.8µs ± 3% ~ (p=0.186 n=30+30) RegexpMatchHard_32-4 2.24µs ± 4% 2.22µs ± 4% ~ (p=0.332 n=30+29) RegexpMatchHard_1K-4 68.0µs ± 4% 67.5µs ± 3% ~ (p=0.290 n=30+30) Revcomp-4 1.85s ± 3% 1.85s ± 3% ~ (p=0.358 n=30+30) Template-4 69.6ms ± 3% 70.0ms ± 4% ~ (p=0.273 n=30+30) TimeParse-4 445ns ± 3% 441ns ± 3% ~ (p=0.494 n=30+30) TimeFormat-4 412ns ± 3% 412ns ± 6% ~ (p=0.841 n=30+30) [Geo mean] 66.7µs 66.8µs +0.13% name old speed new speed delta GobDecode-4 107MB/s ± 5% 106MB/s ± 5% ~ (p=0.615 n=30+30) GobEncode-4 111MB/s ± 6% 111MB/s ± 6% ~ (p=0.790 n=30+30) Gzip-4 48.8MB/s ± 6% 48.7MB/s ± 4% ~ (p=0.167 n=30+30) Gunzip-4 465MB/s ± 3% 465MB/s ± 3% ~ (p=0.420 n=30+30) JSONEncode-4 92.4MB/s ± 4% 93.7MB/s ± 5% +1.42% (p=0.015 n=30+30) JSONDecode-4 29.3MB/s ± 3% 28.8MB/s ± 1% -1.72% (p=0.003 n=30+24) GoParse-4 17.9MB/s ± 3% 17.7MB/s ± 4% -0.89% (p=0.037 n=30+30) RegexpMatchEasy0_32-4 317MB/s ± 8% 324MB/s ± 4% +2.14% (p=0.006 n=30+30) RegexpMatchEasy0_1K-4 1.21GB/s ± 4% 1.22GB/s ± 2% +0.77% (p=0.036 n=30+30) RegexpMatchEasy1_32-4 298MB/s ± 7% 299MB/s ± 4% ~ (p=0.511 n=30+30) RegexpMatchEasy1_1K-4 1.00GB/s ± 3% 1.00GB/s ± 4% ~ (p=0.304 n=28+30) RegexpMatchMedium_32-4 7.75MB/s ± 4% 7.82MB/s ± 4% ~ (p=0.089 n=30+30) RegexpMatchMedium_1K-4 23.3MB/s ± 3% 23.4MB/s ± 3% ~ (p=0.181 n=30+30) RegexpMatchHard_32-4 14.3MB/s ± 4% 14.4MB/s ± 4% ~ (p=0.320 n=30+29) RegexpMatchHard_1K-4 15.1MB/s ± 4% 15.2MB/s ± 3% ~ (p=0.273 n=30+30) Revcomp-4 137MB/s ± 3% 137MB/s ± 3% ~ (p=0.352 n=30+30) Template-4 27.9MB/s ± 3% 27.7MB/s ± 4% ~ (p=0.277 n=30+30) [Geo mean] 79.9MB/s 80.1MB/s +0.15% Change-Id: I97333cd8ddabb3c7c88ca5aa9e14a005b74d306d Reviewed-on: https://go-review.googlesource.com/120695 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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