diff options
Diffstat (limited to 'src/wasm-features.h')
| -rw-r--r-- | src/wasm-features.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/wasm-features.h b/src/wasm-features.h index 92b07b547..20eec56bb 100644 --- a/src/wasm-features.h +++ b/src/wasm-features.h @@ -27,6 +27,8 @@ namespace wasm { struct FeatureSet { enum Feature : uint32_t { + // These features are intended to those documented in tool-conventions: + // https://github.com/WebAssembly/tool-conventions/blob/main/Linking.md#target-features-section None = 0, Atomics = 1 << 0, MutableGlobals = 1 << 1, @@ -47,11 +49,16 @@ struct FeatureSet { TypedContinuations = 1 << 16, SharedEverything = 1 << 17, FP16 = 1 << 18, + BulkMemoryOpt = 1 << 19, // Just the memory.copy and fill operations + // This features is a no-op for compatibility. Having it in this list means + // that we can automatically generate tool flags that set it, but otherwise + // it does nothing. Binaryen always accepts LEB call-indirect encodings. + CallIndirectOverlong = 1 << 20, MVP = None, // Keep in sync with llvm default features: // https://github.com/llvm/llvm-project/blob/c7576cb89d6c95f03968076e902d3adfd1996577/clang/lib/Basic/Targets/WebAssembly.cpp#L150-L153 Default = SignExt | MutableGlobals, - All = (1 << 19) - 1, + All = (1 << 21) - 1, }; static std::string toString(Feature f) { @@ -94,6 +101,10 @@ struct FeatureSet { return "shared-everything"; case FP16: return "fp16"; + case BulkMemoryOpt: + return "bulk-memory-opt"; + case CallIndirectOverlong: + return "call-indirect-overlong"; default: WASM_UNREACHABLE("unexpected feature"); } @@ -145,6 +156,11 @@ struct FeatureSet { return (features & SharedEverything) != 0; } bool hasFP16() const { return (features & FP16) != 0; } + bool hasBulkMemoryOpt() const { + bool has = (features & BulkMemoryOpt) != 0; + assert(has || !hasBulkMemory()); + return has; + } bool hasAll() const { return (features & All) != 0; } void set(FeatureSet f, bool v = true) { @@ -169,6 +185,7 @@ struct FeatureSet { void setTypedContinuations(bool v = true) { set(TypedContinuations, v); } void setSharedEverything(bool v = true) { set(SharedEverything, v); } void setFP16(bool v = true) { set(FP16, v); } + void setBulkMemoryOpt(bool v = true) { set(BulkMemoryOpt, v); } void setMVP() { features = MVP; } void setAll() { features = All; } |