Index: src/wasm/ast-decoder.cc |
diff --git a/src/wasm/ast-decoder.cc b/src/wasm/ast-decoder.cc |
index 70f7bfdd1d7306dd8908feef1a054dbcd1ac9337..74209790bd254f90ff8f07b8888350de7090571b 100644 |
--- a/src/wasm/ast-decoder.cc |
+++ b/src/wasm/ast-decoder.cc |
@@ -996,6 +996,15 @@ class WasmFullDecoder : public WasmDecoder { |
len = 1 + operand.length; |
break; |
} |
+ case kSimdPrefix: { |
+ if (FLAG_enable_wasm_simd) { |
+ len++; |
+ byte simd_index = *(pc_ + 1); |
+ opcode = static_cast<WasmOpcode>(opcode << 8 | simd_index); |
+ DecodeSimdOpcode(opcode); |
+ break; |
+ } |
+ } |
default: |
error("Invalid opcode"); |
return; |
@@ -1101,6 +1110,17 @@ class WasmFullDecoder : public WasmDecoder { |
return 1 + operand.length; |
} |
+ void DecodeSimdOpcode(WasmOpcode opcode) { |
+ FunctionSig* sig = WasmOpcodes::Signature(opcode); |
+ compiler::NodeVector inputs(sig->parameter_count(), zone_); |
+ for (size_t i = sig->parameter_count(); i > 0; i--) { |
+ Value val = Pop(static_cast<int>(i - 1), sig->GetParam(i - 1)); |
+ inputs[i - 1] = val.node; |
+ } |
+ TFNode* node = BUILD(SimdOp, opcode, inputs); |
+ Push(GetReturnType(sig), node); |
+ } |
+ |
void DoReturn() { |
int count = static_cast<int>(sig_->return_count()); |
TFNode** buffer = nullptr; |