[wasm] Swap the implementation of SIMD compare ops using Gt/Ge insteas of Lt/Le

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 1488 matching lines @@
 
 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 || SIMD_LOWERING_TARGET
 
 #if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
 WASM_EXEC_COMPILED_TEST(I8x16Mul) { RunI8x16BinOpTest(kExprI8x16Mul, Mul); }
+#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64
 
+// TODO(gdeepti): Remove special case for ARM64 after v8:6421 is fixed
+#if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET && !V8_TARGET_ARCH_ARM64
 WASM_EXEC_COMPILED_TEST(I8x16GtS) {
   RunI8x16CompareOpTest(kExprI8x16GtS, Greater);
 }
 
 WASM_EXEC_COMPILED_TEST(I8x16GeS) {
   RunI8x16CompareOpTest(kExprI8x16GeS, GreaterEqual);
 }
 
 WASM_EXEC_COMPILED_TEST(I8x16LtS) {
   RunI8x16CompareOpTest(kExprI8x16LtS, Less);
@@ skipping 11 matching lines @@
   RunI8x16CompareOpTest(kExprI8x16GeU, UnsignedGreaterEqual);
 }
 
 WASM_EXEC_COMPILED_TEST(I8x16LtU) {
   RunI8x16CompareOpTest(kExprI8x16LtU, UnsignedLess);
 }
 
 WASM_EXEC_COMPILED_TEST(I8x16LeU) {
   RunI8x16CompareOpTest(kExprI8x16LeU, UnsignedLessEqual);
 }
-#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET
+#endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET && !V8_TARGET_ARCH_ARM64
 
 void RunI8x16ShiftOpTest(WasmOpcode simd_op, Int8ShiftOp expected_op,
                          int shift) {
   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_I8x16_SPLAT(WASM_GET_LOCAL(a))),
         WASM_SET_LOCAL(
@@ skipping 785 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