diff options
| author | Ilya Tocar <ilya.tocar@intel.com> | 2016-01-13 16:43:22 +0300 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2016-01-13 14:04:44 +0000 |
| commit | 1d1f2fb4c6e4da4a88a0ab8a0b43822d411a23ea (patch) | |
| tree | 519bdcb23eaaccd80a7104a4d58988ae387f1cc9 /src/runtime/asm_amd64.s | |
| parent | ceeb52d86214757b25a39a939fe945eb8e787bf6 (diff) | |
| download | go-1d1f2fb4c6e4da4a88a0ab8a0b43822d411a23ea.tar.xz | |
cmd/internal/obj/x86: add new instructions, cleanup.
Add several instructions that were used via BYTE and use them.
Instructions added: PEXTRB, PEXTRD, PEXTRQ, PINSRB, XGETBV, POPCNT.
Change-Id: I5a80cd390dc01f3555dbbe856a475f74b5e6df65
Reviewed-on: https://go-review.googlesource.com/18593
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Diffstat (limited to 'src/runtime/asm_amd64.s')
| -rw-r--r-- | src/runtime/asm_amd64.s | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/runtime/asm_amd64.s b/src/runtime/asm_amd64.s index 6ebe0dc8e6..cac032c370 100644 --- a/src/runtime/asm_amd64.s +++ b/src/runtime/asm_amd64.s @@ -56,7 +56,7 @@ notintel: JNE noavx MOVL $0, CX // For XGETBV, OSXSAVE bit is required and sufficient - BYTE $0x0F; BYTE $0x01; BYTE $0xD0 + XGETBV ANDL $6, AX CMPL AX, $6 // Check for OS support of YMM registers JNE noavx @@ -822,10 +822,10 @@ TEXT runtime·getcallersp(SB),NOSPLIT,$0-16 TEXT runtime·cputicks(SB),NOSPLIT,$0-0 CMPB runtime·lfenceBeforeRdtsc(SB), $1 JNE mfence - BYTE $0x0f; BYTE $0xae; BYTE $0xe8 // LFENCE + LFENCE JMP done mfence: - BYTE $0x0f; BYTE $0xae; BYTE $0xf0 // MFENCE + MFENCE done: RDTSC SHLQ $32, DX |