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| author | Martin Möhrmann <moehrmann@google.com> | 2017-04-27 08:30:27 +0200 |
|---|---|---|
| committer | Martin Möhrmann <moehrmann@google.com> | 2017-05-01 20:46:03 +0000 |
| commit | 5a6c58099085a8156bc42b68a7cf51b5b9c72802 (patch) | |
| tree | 245a4db2af872b465cfb8e6220c4b8ae26996466 /src/runtime/alg.go | |
| parent | 1f85d3ad09152e09d5f4e9b6d9dcec72dbb4ad9b (diff) | |
| download | go-5a6c58099085a8156bc42b68a7cf51b5b9c72802.tar.gz go-5a6c58099085a8156bc42b68a7cf51b5b9c72802.zip | |
runtime: refactor cpu feature detection for 386 & amd64
Changes all cpu features to be detected and stored in bools in rt0_go.
Updates: #15403
Change-Id: I5a9961cdec789b331d09c44d86beb53833d5dc3e
Reviewed-on: https://go-review.googlesource.com/41950
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/runtime/alg.go')
| -rw-r--r-- | src/runtime/alg.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/runtime/alg.go b/src/runtime/alg.go index 504be61cd0..8d388da5a2 100644 --- a/src/runtime/alg.go +++ b/src/runtime/alg.go @@ -283,9 +283,9 @@ func alginit() { // Install aes hash algorithm if we have the instructions we need if (GOARCH == "386" || GOARCH == "amd64") && GOOS != "nacl" && - cpuid_ecx&(1<<25) != 0 && // aes (aesenc) - cpuid_ecx&(1<<9) != 0 && // sse3 (pshufb) - cpuid_ecx&(1<<19) != 0 { // sse4.1 (pinsr{d,q}) + support_aes && // AESENC + support_ssse3 && // PSHUFB + support_sse41 { // PINSR{D,Q} useAeshash = true algarray[alg_MEM32].hash = aeshash32 algarray[alg_MEM64].hash = aeshash64 |