[wasm] Add simd lowering for I16x8Neg

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

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/assembler-inl.h"
 #include "test/cctest/cctest.h"
 #include "test/cctest/compiler/value-helper.h"
 #include "test/cctest/wasm/wasm-run-utils.h"
 #include "test/common/wasm/wasm-macro-gen.h"
 
@@ skipping 1141 matching lines @@
         WASM_SIMD_CHECK_SPLAT8(I16x8, simd2, I32, unpacked_unsigned), WASM_ONE);
 
   FOR_INT8_INPUTS(i) {
     int32_t unpacked_signed = Widen<int8_t>(*i);
     int32_t unpacked_unsigned = UnsignedWiden<int8_t>(*i);
     CHECK_EQ(1, r.Call(*i, unpacked_signed, unpacked_unsigned));
   }
 }
 #endif  // V8_TARGET_ARCH_ARM
 
-#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
+#if SIMD_LOWERING_TARGET || V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || \
+    V8_TARGET_ARCH_MIPS64
 void RunI16x8UnOpTest(WasmOpcode simd_op, Int16UnOp expected_op) {
   FLAG_wasm_simd_prototype = true;
   WasmRunner<int32_t, int32_t, int32_t> r(kExecuteCompiled);
   byte a = 0;
   byte expected = 1;
   byte simd = r.AllocateLocal(kWasmS128);
   BUILD(r, WASM_SET_LOCAL(simd, WASM_SIMD_I16x8_SPLAT(WASM_GET_LOCAL(a))),
         WASM_SET_LOCAL(simd, WASM_SIMD_UNOP(simd_op, WASM_GET_LOCAL(simd))),
         WASM_SIMD_CHECK_SPLAT8(I16x8, simd, I32, expected), WASM_ONE);
 
   FOR_INT16_INPUTS(i) { CHECK_EQ(1, r.Call(*i, expected_op(*i))); }
 }
 
 WASM_EXEC_COMPILED_TEST(I16x8Neg) { RunI16x8UnOpTest(kExprI16x8Neg, Negate); }
-#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
+#endif  // SIMD_LOWERING_TARGET || V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS ||
+        // V8_TARGET_ARCH_MIPS64
 
 #if V8_TARGET_ARCH_ARM
 // Tests both signed and unsigned conversion from I32x4 (packing).
 WASM_EXEC_COMPILED_TEST(I16x8ConvertI32x4) {
   FLAG_wasm_simd_prototype = true;
   WasmRunner<int32_t, int32_t, int32_t, int32_t> r(kExecuteCompiled);
   byte a = 0;
   byte packed_signed = 1;
   byte packed_unsigned = 2;
   byte simd0 = r.AllocateLocal(kWasmS128);
@@ skipping 1090 matching lines @@
         WASM_SIMD_I32x4_EXTRACT_LANE(
             0, WASM_LOAD_MEM(MachineType::Simd128(), WASM_ZERO)));
 
   FOR_INT32_INPUTS(i) {
     int32_t expected = *i;
     r.module().WriteMemory(&memory[0], expected);
     CHECK_EQ(expected, r.Call());
   }
 }
 #endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET || V8_TARGET_ARCH_X64