[wasm] Implement simd lowering for I8x16

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 02e86f37711eae2f0a13d8061c3f92cdf1af1964..3b5d309ecbeed1748dfa70ce124ee0ca1af1f04e 100644
--- a/test/cctest/wasm/test-run-wasm-simd.cc
+++ b/test/cctest/wasm/test-run-wasm-simd.cc
@@ -741,7 +741,7 @@ WASM_EXEC_COMPILED_TEST(I16x8ReplaceLane) {
 #endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || SIMD_LOWERING_TARGET ||
         // V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
 
-#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64
+#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || SIMD_LOWERING_TARGET
 WASM_EXEC_COMPILED_TEST(I8x16Splat) {
   FLAG_wasm_simd_prototype = true;
 
@@ -859,7 +859,7 @@ WASM_EXEC_COMPILED_TEST(I8x16ReplaceLane) {
 
   CHECK_EQ(1, r.Call(1, 2));
 }
-#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64
+#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || SIMD_LOWERING_TARGET
 
 #if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET || V8_TARGET_ARCH_MIPS || \
     V8_TARGET_ARCH_MIPS64
@@ -1362,7 +1362,7 @@ WASM_EXEC_COMPILED_TEST(I16x8ShrU) {
 #endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || SIMD_LOWERING_TARGET ||
         // V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
 
-#if V8_TARGET_ARCH_ARM
+#if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 void RunI8x16UnOpTest(WasmOpcode simd_op, Int8UnOp expected_op) {
   FLAG_wasm_simd_prototype = true;
   WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled);
@@ -1377,7 +1377,9 @@ void RunI8x16UnOpTest(WasmOpcode simd_op, Int8UnOp expected_op) {
 }
 
 WASM_EXEC_COMPILED_TEST(I8x16Neg) { RunI8x16UnOpTest(kExprI8x16Neg, Negate); }
+#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 
+#if V8_TARGET_ARCH_ARM
 // Tests both signed and unsigned conversion from I16x8 (packing).
 WASM_EXEC_COMPILED_TEST(I8x16ConvertI16x8) {
   FLAG_wasm_simd_prototype = true;
@@ -1408,7 +1410,7 @@ WASM_EXEC_COMPILED_TEST(I8x16ConvertI16x8) {
 }
 #endif  // V8_TARGET_ARCH_ARM
 
-#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64
+#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || SIMD_LOWERING_TARGET
 void RunI8x16BinOpTest(WasmOpcode simd_op, Int8BinOp expected_op) {
   FLAG_wasm_simd_prototype = true;
   WasmRunner<int32_t, int32_t, int32_t, int32_t> r(kExecuteCompiled);
@@ -1490,9 +1492,9 @@ WASM_EXEC_COMPILED_TEST(I8x16Eq) { RunI8x16CompareOpTest(kExprI8x16Eq, Equal); }
 WASM_EXEC_COMPILED_TEST(I8x16Ne) {
   RunI8x16CompareOpTest(kExprI8x16Ne, NotEqual);
 }
-#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64
+#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || SIMD_LOWERING_TARGET
 
-#if V8_TARGET_ARCH_ARM
+#if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 WASM_EXEC_COMPILED_TEST(I8x16Mul) { RunI8x16BinOpTest(kExprI8x16Mul, Mul); }
 
 WASM_EXEC_COMPILED_TEST(I8x16GtS) {
@@ -1553,7 +1555,7 @@ WASM_EXEC_COMPILED_TEST(I8x16ShrS) {
 WASM_EXEC_COMPILED_TEST(I8x16ShrU) {
   RunI8x16ShiftOpTest(kExprI8x16ShrU, LogicalShiftRight, 1);
 }
-#endif  // V8_TARGET_ARCH_ARM
+#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 
 #if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_MIPS || \
     V8_TARGET_ARCH_MIPS64