diff options
Diffstat (limited to 'vendor/github.com/tetratelabs/wazero/internal/platform/cpuid.go')
| -rw-r--r-- | vendor/github.com/tetratelabs/wazero/internal/platform/cpuid.go | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/internal/platform/cpuid.go b/vendor/github.com/tetratelabs/wazero/internal/platform/cpuid.go new file mode 100644 index 000000000..25d7d3fdc --- /dev/null +++ b/vendor/github.com/tetratelabs/wazero/internal/platform/cpuid.go @@ -0,0 +1,25 @@ +package platform + +// CpuFeatureFlags exposes methods for querying CPU capabilities +type CpuFeatureFlags interface { + // Has returns true when the specified flag (represented as uint64) is supported + Has(cpuFeature CpuFeature) bool + // HasExtra returns true when the specified extraFlag (represented as uint64) is supported + HasExtra(cpuFeature CpuFeature) bool +} + +type CpuFeature uint64 + +const ( + // CpuFeatureAmd64SSE3 is the flag to query CpuFeatureFlags.Has for SSEv3 capabilities on amd64 + CpuFeatureAmd64SSE3 CpuFeature = 1 + // CpuFeatureAmd64SSE4_1 is the flag to query CpuFeatureFlags.Has for SSEv4.1 capabilities on amd64 + CpuFeatureAmd64SSE4_1 CpuFeature = 1 << 19 + // CpuFeatureAmd64SSE4_2 is the flag to query CpuFeatureFlags.Has for SSEv4.2 capabilities on amd64 + CpuFeatureAmd64SSE4_2 CpuFeature = 1 << 20 +) + +const ( + // CpuExtraFeatureAmd64ABM is the flag to query CpuFeatureFlags.HasExtra for Advanced Bit Manipulation capabilities (e.g. LZCNT) on amd64 + CpuExtraFeatureAmd64ABM CpuFeature = 1 << 5 +) |