[wasm] simd scalar lowering F32x4Add and I32x4Add

src/compiler/wasm-compiler.cc

Index: src/compiler/wasm-compiler.cc
diff --git a/src/compiler/wasm-compiler.cc b/src/compiler/wasm-compiler.cc
index 30c545ec515bb07c2459b52b11dc25d3e1fcedd9..4dd02a947da0e8769b2dc692f3bbe83c314770d3 100644
--- a/src/compiler/wasm-compiler.cc
+++ b/src/compiler/wasm-compiler.cc
@@ -24,6 +24,7 @@
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/pipeline.h"
+#include "src/compiler/simd-scalar-lowering.h"
 #include "src/compiler/source-position.h"
 #include "src/compiler/zone-pool.h"
 
@@ -2883,6 +2884,18 @@ Node* WasmGraphBuilder::SimdOp(wasm::WasmOpcode opcode,
     case wasm::kExprI32x4Splat:
       return graph()->NewNode(jsgraph()->machine()->CreateInt32x4(), inputs[0],
                               inputs[0], inputs[0], inputs[0]);
+    case wasm::kExprI32x4Add:
+      return graph()->NewNode(jsgraph()->machine()->Int32x4Add(), inputs[0],
+                              inputs[1]);
+    case wasm::kExprF32x4ExtractLane:
+      return graph()->NewNode(jsgraph()->machine()->Float32x4ExtractLane(),
+                              inputs[0], inputs[1]);
+    case wasm::kExprF32x4Splat:
+      return graph()->NewNode(jsgraph()->machine()->CreateFloat32x4(),
+                              inputs[0], inputs[0], inputs[0], inputs[0]);
+    case wasm::kExprF32x4Add:
+      return graph()->NewNode(jsgraph()->machine()->Float32x4Add(), inputs[0],
+                              inputs[1]);
     default:
       return graph()->NewNode(UnsupportedOpcode(opcode), nullptr);
   }
@@ -3098,6 +3111,10 @@ SourcePositionTable* WasmCompilationUnit::BuildGraphForWasmFunction(
     r.LowerGraph();
   }
 
+  SimdScalarLowering r(graph, machine, common, jsgraph_->zone(),

[bradnelson, 2016/08/31 22:42:08]

->
SimdScalarLowering(graph, machine, common, jsgraph_->zone(),
function_->sig).LowerGraph();

and maybe above too.

[aseemgarg, 2016/10/10 17:35:17]

Done.

+                       function_->sig);
+  r.LowerGraph();
+
   int index = static_cast<int>(function_->func_index);
 
   if (index >= FLAG_trace_wasm_ast_start && index < FLAG_trace_wasm_ast_end) {