[wasm]implement simd lowering for simple F32x4 and I32x4 unops

test/cctest/wasm/test-run-wasm-simd.cc

Index: test/cctest/wasm/test-run-wasm-simd.cc
diff --git a/test/cctest/wasm/test-run-wasm-simd.cc b/test/cctest/wasm/test-run-wasm-simd.cc
index 53211ce340fbe8ca88a7f9f6448f3b264df629f5..708c0a361eeb6ec9d11e485008c07d1572e45e50 100644
--- a/test/cctest/wasm/test-run-wasm-simd.cc
+++ b/test/cctest/wasm/test-run-wasm-simd.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <cmath>

[gdeepti, 2017/02/28 09:50:49]

Header not needed here, already included in cctest.h (utils). 

[aseemgarg, 2017/02/28 12:54:07]

Done.

 #include "src/assembler-inl.h"
 #include "src/wasm/wasm-macro-gen.h"
 #include "test/cctest/cctest.h"
@@ -212,6 +213,11 @@ T Not(T a) {
   return ~a;
 }
 
+template <typename T>
+T Sqrt(T a) {
+  return std::sqrt(a);
+}
+
 }  // namespace
 
 #if !V8_TARGET_ARCH_ARM && !V8_TARGET_ARCH_X64
@@ -379,9 +385,7 @@ WASM_EXEC_COMPILED_TEST(F32x4ReplaceLane) {
 
   CHECK_EQ(1, r.Call(3.14159f, -1.5f));
 }
-#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 
-#if V8_TARGET_ARCH_ARM
 // Tests both signed and unsigned conversion.
 WASM_EXEC_COMPILED_TEST(F32x4FromInt32x4) {
   FLAG_wasm_simd_prototype = true;
@@ -423,7 +427,11 @@ void RunF32x4UnOpTest(WasmOpcode simd_op, FloatUnOp expected_op) {
 
 WASM_EXEC_COMPILED_TEST(F32x4Abs) { RunF32x4UnOpTest(kExprF32x4Abs, std::abs); }
 WASM_EXEC_COMPILED_TEST(F32x4Neg) { RunF32x4UnOpTest(kExprF32x4Neg, Negate); }
-#endif  // V8_TARGET_ARCH_ARM
+#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
+
+#if SIMD_LOWERING_TARGET
+WASM_EXEC_COMPILED_TEST(F32x4Sqrt) { RunF32x4UnOpTest(kExprF32x4Sqrt, Sqrt); }
+#endif  // SIMD_LOWERING_TARGET
 
 #if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 void RunF32x4BinOpTest(WasmOpcode simd_op, FloatBinOp expected_op,
@@ -808,7 +816,9 @@ WASM_EXEC_COMPILED_TEST(I32x4FromFloat32x4) {
     CHECK_EQ(1, r.Call(*i, signed_value, unsigned_value));
   }
 }
+#endif  // V8_TARGET_ARCH_ARM
 
+#if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 void RunI32x4UnOpTest(WasmOpcode simd_op, Int32UnOp expected_op) {
   FLAG_wasm_simd_prototype = true;
   WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled);
@@ -825,7 +835,7 @@ void RunI32x4UnOpTest(WasmOpcode simd_op, Int32UnOp expected_op) {
 WASM_EXEC_COMPILED_TEST(I32x4Neg) { RunI32x4UnOpTest(kExprI32x4Neg, Negate); }
 
 WASM_EXEC_COMPILED_TEST(S128Not) { RunI32x4UnOpTest(kExprS128Not, Not); }
-#endif  // V8_TARGET_ARCH_ARM
+#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 
 void RunI32x4BinOpTest(WasmOpcode simd_op, Int32BinOp expected_op) {
   FLAG_wasm_simd_prototype = true;