diff options
| author | Achille Roussel <achille.roussel@gmail.com> | 2023-10-18 19:21:55 +0000 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2023-11-15 18:30:03 +0000 |
| commit | 8f262a2843a6f3ef32e938ce39c0ffeb84f04a42 (patch) | |
| tree | ca40845996cae5efdd651a33d1bb60fe7a620e9f /src/runtime/asm_amd64.s | |
| parent | 6ef98ac87c8a4185c0bace496d84cb3b68f069e3 (diff) | |
| download | go-8f262a2843a6f3ef32e938ce39c0ffeb84f04a42.tar.xz | |
internal/cpu: detect support of AVX512
Extracts changes from that were submitted in other CLs to enable AVX512
detection, notably:
- https://go-review.googlesource.com/c/go/+/271521
- https://go-review.googlesource.com/c/go/+/379394
- https://go-review.googlesource.com/c/go/+/502476
This change adds properties to the cpu.X86 fields to enable runtime
detection of AVX512, and the hasAVX512F, hasAVX512BW, and hasAVX512VL
macros to support bypassing runtime checks in assembly code when
GOAMD64=v4 is set.
Change-Id: Ia7c3f22f1e66bf1de575aba522cb0d0a55ce791f
Reviewed-on: https://go-review.googlesource.com/c/go/+/536257
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Martin Möhrmann <martin@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Martin Möhrmann <martin@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
Commit-Queue: Martin Möhrmann <martin@golang.org>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
Diffstat (limited to 'src/runtime/asm_amd64.s')
| -rw-r--r-- | src/runtime/asm_amd64.s | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/runtime/asm_amd64.s b/src/runtime/asm_amd64.s index ab845fbd8a..1abf4075e0 100644 --- a/src/runtime/asm_amd64.s +++ b/src/runtime/asm_amd64.s @@ -144,12 +144,12 @@ GLOBL bad_cpu_msg<>(SB), RODATA, $84 #define commpage64_base_address 0x00007fffffe00000 #define commpage64_cpu_capabilities64 (commpage64_base_address+0x010) #define commpage64_version (commpage64_base_address+0x01E) -#define hasAVX512F 0x0000004000000000 -#define hasAVX512CD 0x0000008000000000 -#define hasAVX512DQ 0x0000010000000000 -#define hasAVX512BW 0x0000020000000000 -#define hasAVX512VL 0x0000100000000000 -#define NEED_DARWIN_SUPPORT (hasAVX512F | hasAVX512DQ | hasAVX512CD | hasAVX512BW | hasAVX512VL) +#define AVX512F 0x0000004000000000 +#define AVX512CD 0x0000008000000000 +#define AVX512DQ 0x0000010000000000 +#define AVX512BW 0x0000020000000000 +#define AVX512VL 0x0000100000000000 +#define NEED_DARWIN_SUPPORT (AVX512F | AVX512DQ | AVX512CD | AVX512BW | AVX512VL) #else #define NEED_OS_SUPPORT_AX V4_OS_SUPPORT_AX #endif |