[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

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
+)