| commit | 859b63cc0964d9e6edb0e586b156f85b79fa8dab | [log] [tgz] |
|---|---|---|
| author | Michel Lespinasse <walken@google.com> | Fri Mar 18 17:21:33 2016 -0700 |
| committer | Michel Lespinasse <walken@google.com> | Tue Mar 29 02:21:50 2016 +0000 |
| tree | 3117ef2bebba991e7f743b772b704ee42c8e8fea | |
| parent | 7427f2c4bdf45fcf2288395d0e70c0c2fbe7ebcf [diff] |
cmd/compile: optimize remaining convT2I calls See #14874 Updates #6853 This change adds a compiler optimization for non pointer shaped convT2I. Since itab symbols are now emitted by the compiler, the itab address can be passed directly to convT2I instead of passing the iface type and a cache pointer argument. Compilebench results for the 5-commits series ending here: name old time/op new time/op delta Template 336ms ± 4% 344ms ± 4% +2.61% (p=0.027 n=9+8) Unicode 165ms ± 6% 173ms ± 7% +5.11% (p=0.014 n=9+9) GoTypes 1.09s ± 1% 1.06s ± 2% -3.29% (p=0.000 n=9+9) Compiler 5.09s ±10% 4.75s ±10% -6.64% (p=0.011 n=10+10) MakeBash 31.1s ± 5% 30.3s ± 3% ~ (p=0.089 n=10+10) name old text-bytes new text-bytes delta HelloSize 558k ± 0% 558k ± 0% +0.02% (p=0.000 n=10+10) CmdGoSize 6.24M ± 0% 6.11M ± 0% -2.11% (p=0.000 n=10+10) name old data-bytes new data-bytes delta HelloSize 3.66k ± 0% 3.74k ± 0% +2.41% (p=0.000 n=10+10) CmdGoSize 134k ± 0% 162k ± 0% +20.76% (p=0.000 n=10+10) name old bss-bytes new bss-bytes delta HelloSize 126k ± 0% 126k ± 0% ~ (all samples are equal) CmdGoSize 149k ± 0% 146k ± 0% -2.17% (p=0.000 n=10+10) name old exe-bytes new exe-bytes delta HelloSize 924k ± 0% 924k ± 0% +0.05% (p=0.000 n=10+10) CmdGoSize 9.77M ± 0% 9.62M ± 0% -1.47% (p=0.000 n=10+10) Change-Id: Ib230ddc04988824035c32287ae544a965fedd344 Reviewed-on: https://go-review.googlesource.com/20902 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org> Run-TryBot: Michel Lespinasse <walken@google.com>
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