[WASM SIMD] Remove opcodes that are slow on some platforms.

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 "src/wasm/wasm-macro-gen.h"
 #include "test/cctest/cctest.h"
 #include "test/cctest/compiler/value-helper.h"
 #include "test/cctest/wasm/wasm-run-utils.h"
 
@@ skipping 248 matching lines @@
 template <typename T>
 T Recip(T a) {
   return 1.0f / a;
 }
 
 template <typename T>
 T RecipSqrt(T a) {
   return 1.0f / std::sqrt(a);
 }
 
-template <typename T>
-T RecipRefine(T a, T b) {
-  return 2.0f - a * b;
-}
-
-template <typename T>
-T RecipSqrtRefine(T a, T b) {
-  return (3.0f - a * b) * 0.5f;
-}
-
 }  // namespace
 
 #define WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lane_value, lane_index) \
   WASM_IF(WASM_##LANE_TYPE##_NE(WASM_GET_LOCAL(lane_value),                  \
                                 WASM_SIMD_##TYPE##_EXTRACT_LANE(             \
                                     lane_index, WASM_GET_LOCAL(value))),     \
           WASM_RETURN1(WASM_ZERO))
 
 #define WASM_SIMD_CHECK4(TYPE, value, LANE_TYPE, lv0, lv1, lv2, lv3) \
   WASM_SIMD_CHECK_LANE(TYPE, value, LANE_TYPE, lv0, 0)               \
@@ skipping 220 matching lines @@
     float abs_error = std::abs(expected) * error;
     CHECK_EQ(1, r.Call(*i, expected - abs_error, expected + abs_error));
   }
 }
 
 WASM_EXEC_COMPILED_TEST(F32x4Abs) { RunF32x4UnOpTest(kExprF32x4Abs, std::abs); }
 WASM_EXEC_COMPILED_TEST(F32x4Neg) { RunF32x4UnOpTest(kExprF32x4Neg, Negate); }
 #endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET || V8_TARGET_ARCH_MIPS ||
         // V8_TARGET_ARCH_MIPS64
 
-#if SIMD_LOWERING_TARGET
-WASM_EXEC_COMPILED_TEST(F32x4Sqrt) { RunF32x4UnOpTest(kExprF32x4Sqrt, Sqrt); }
-#endif  // SIMD_LOWERING_TARGET
-
 #if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
 static const float kApproxError = 0.01f;
 
 WASM_EXEC_COMPILED_TEST(F32x4RecipApprox) {
   RunF32x4UnOpTest(kExprF32x4RecipApprox, Recip, kApproxError);
 }
 
 WASM_EXEC_COMPILED_TEST(F32x4RecipSqrtApprox) {
   RunF32x4UnOpTest(kExprF32x4RecipSqrtApprox, RecipSqrt, kApproxError);
 }
@@ skipping 31 matching lines @@
 WASM_EXEC_COMPILED_TEST(F32x4Mul) { RunF32x4BinOpTest(kExprF32x4Mul, Mul); }
 WASM_EXEC_COMPILED_TEST(F32x4_Min) {
   RunF32x4BinOpTest(kExprF32x4Min, Minimum);
 }
 WASM_EXEC_COMPILED_TEST(F32x4_Max) {
   RunF32x4BinOpTest(kExprF32x4Max, Maximum);
 }
 #endif  // V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET || V8_TARGET_ARCH_MIPS ||
         // V8_TARGET_ARCH_MIPS64
 
-#if SIMD_LOWERING_TARGET
-WASM_EXEC_COMPILED_TEST(F32x4Div) { RunF32x4BinOpTest(kExprF32x4Div, Div); }
-#endif  // SIMD_LOWERING_TARGET
-
-#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
-WASM_EXEC_COMPILED_TEST(F32x4RecipRefine) {
-  RunF32x4BinOpTest(kExprF32x4RecipRefine, RecipRefine);
-}
-
-WASM_EXEC_COMPILED_TEST(F32x4RecipSqrtRefine) {
-  RunF32x4BinOpTest(kExprF32x4RecipSqrtRefine, RecipSqrtRefine);
-}
-#endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
-
 #if V8_TARGET_ARCH_ARM || SIMD_LOWERING_TARGET || V8_TARGET_ARCH_MIPS || \
     V8_TARGET_ARCH_MIPS64
 void RunF32x4CompareOpTest(WasmOpcode simd_op, FloatCompareOp expected_op) {
   FLAG_wasm_simd_prototype = true;
   WasmRunner<int32_t, float, float, int32_t> r(kExecuteCompiled);
   byte a = 0;
   byte b = 1;
   byte expected = 2;
   byte simd0 = r.AllocateLocal(kWasmS128);
   byte simd1 = r.AllocateLocal(kWasmS128);
@@ skipping 1415 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