Index: src/wasm/ast-decoder.cc |
diff --git a/src/wasm/ast-decoder.cc b/src/wasm/ast-decoder.cc |
index 70f7bfdd1d7306dd8908feef1a054dbcd1ac9337..102bca96bdbc1c29aecc99ffc360d0b403112b4e 100644 |
--- a/src/wasm/ast-decoder.cc |
+++ b/src/wasm/ast-decoder.cc |
@@ -996,6 +996,13 @@ class WasmFullDecoder : public WasmDecoder { |
len = 1 + operand.length; |
break; |
} |
+ case kSimdPrefix: { |
+ len++; |
+ byte simd_index = *(pc_ + 1); |
+ opcode = static_cast<WasmOpcode>(opcode << 8 | simd_index); |
+ DecodeSimdOpcode(opcode); |
bradnelson
2016/07/13 18:10:42
Add an --enable-wasm-simd flag, and error if this
gdeepti
2016/07/13 18:58:35
Added --enable-wasm-simd flag, falls through to in
|
+ break; |
+ } |
default: |
error("Invalid opcode"); |
return; |
@@ -1101,6 +1108,17 @@ 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 (int i = static_cast<int>(sig->parameter_count()); i > 0; i--) { |
bradnelson
2016/07/13 18:10:42
size_t drop cast?
gdeepti
2016/07/13 18:58:35
Done.
|
+ Value val = Pop(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; |