[wasm-simd] Move double precision conversions out of post-mvp

Bug: v8:11265
Change-Id: Ia51f2d177430e8659e745835fbdee57ad5ef5e07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2683205Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72606}

src/wasm/wasm-opcodes.h

@@ -441,6 +441,8 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   V(I32x4ExtMulHighI16x8S, 0xfdbd, s_ss)     \
   V(I32x4ExtMulLowI16x8U, 0xfdbe, s_ss)      \
   V(I32x4ExtMulHighI16x8U, 0xfdbf, s_ss)     \
+  V(I32x4TruncSatF64x2SZero, 0xfd55, s_s)    \
+  V(I32x4TruncSatF64x2UZero, 0xfd56, s_s)    \
   V(I64x2Neg, 0xfdc1, s_s)                   \
   V(V64x2AllTrue, 0xfdcf, i_s)               \
   V(I64x2BitMask, 0xfdc4, i_s)               \
@@ -469,6 +471,7 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   V(F32x4Max, 0xfde9, s_ss)                  \
   V(F32x4Pmin, 0xfdea, s_ss)                 \
   V(F32x4Pmax, 0xfdeb, s_ss)                 \
+  V(F32x4DemoteF64x2Zero, 0xfd57, s_s)       \
   V(F64x2Abs, 0xfdec, s_s)                   \
   V(F64x2Neg, 0xfded, s_s)                   \
   V(F64x2Sqrt, 0xfdef, s_s)                  \
@@ -491,7 +494,10 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   V(F64x2Ceil, 0xfddc, s_s)                  \
   V(F64x2Floor, 0xfddd, s_s)                 \
   V(F64x2Trunc, 0xfdde, s_s)                 \
-  V(F64x2NearestInt, 0xfddf, s_s)
+  V(F64x2NearestInt, 0xfddf, s_s)            \
+  V(F64x2ConvertLowI32x4S, 0xfd53, s_s)      \
+  V(F64x2ConvertLowI32x4U, 0xfd54, s_s)      \
+  V(F64x2PromoteLowF32x4, 0xfd69, s_s)
 
 #define FOREACH_SIMD_POST_MVP_MEM_OPCODE(V) \
   V(PrefetchT, 0xfdc5, v_i)                 \
@@ -516,13 +522,7 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   V(I32x4AddHoriz, 0xfdb0, s_ss)            \
   V(F32x4AddHoriz, 0xfdb2, s_ss)            \
   V(F32x4RecipApprox, 0xfdb3, s_s)          \
-  V(F32x4RecipSqrtApprox, 0xfdbc, s_s)      \
-  V(F64x2ConvertLowI32x4S, 0xfd53, s_s)     \
-  V(F64x2ConvertLowI32x4U, 0xfd54, s_s)     \
-  V(I32x4TruncSatF64x2SZero, 0xfd55, s_s)   \
-  V(I32x4TruncSatF64x2UZero, 0xfd56, s_s)   \
-  V(F32x4DemoteF64x2Zero, 0xfd57, s_s)      \
-  V(F64x2PromoteLowF32x4, 0xfd69, s_s)
+  V(F32x4RecipSqrtApprox, 0xfdbc, s_s)
 
 #define FOREACH_SIMD_POST_MVP_ONE_OPERAND_OPCODE(V) \
   V(I32x4WidenI8x16S, 0xfd67, s_s)                  \

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

@@ -1279,8 +1279,6 @@ WASM_SIMD_TEST(F64x2NearestInt) {
 template <typename SrcType>
 void RunF64x2ConvertLowI32x4Test(TestExecutionTier execution_tier,
                                  LowerSimd lower_simd, WasmOpcode opcode) {
-  FLAG_SCOPE(wasm_simd_post_mvp);
-
   WasmRunner<int32_t, SrcType> r(execution_tier, lower_simd);
   double* g = r.builder().template AddGlobal<double>(kWasmS128);
   // TODO(zhin): set top lanes to 0 to assert conversion happens on low lanes.
@@ -1313,8 +1311,6 @@ WASM_SIMD_TEST_NO_LOWERING(F64x2ConvertLowI32x4U) {
 template <typename SrcType>
 void RunI32x4TruncSatF64x2Test(TestExecutionTier execution_tier,
                                LowerSimd lower_simd, WasmOpcode opcode) {
-  FLAG_SCOPE(wasm_simd_post_mvp);
-
   WasmRunner<int32_t, double> r(execution_tier, lower_simd);
   SrcType* g = r.builder().AddGlobal<SrcType>(kWasmS128);
   BUILD(
@@ -1348,8 +1344,6 @@ WASM_SIMD_TEST_NO_LOWERING(I32x4TruncSatF64x2UZero) {
 }
 
 WASM_SIMD_TEST_NO_LOWERING(F32x4DemoteF64x2Zero) {
-  FLAG_SCOPE(wasm_simd_post_mvp);
-
   WasmRunner<int32_t, double> r(execution_tier, lower_simd);
   float* g = r.builder().AddGlobal<float>(kWasmS128);
   BUILD(r,
@@ -1373,8 +1367,6 @@ WASM_SIMD_TEST_NO_LOWERING(F32x4DemoteF64x2Zero) {
 }
 
 WASM_SIMD_TEST_NO_LOWERING(F64x2PromoteLowF32x4) {
-  FLAG_SCOPE(wasm_simd_post_mvp);
-
   WasmRunner<int32_t, float> r(execution_tier, lower_simd);
   double* g = r.builder().AddGlobal<double>(kWasmS128);
   BUILD(r,