[wasm-simd] Move load/store lane out of post-mvp

Define a new macro list, since this has 1 immediate operand (lane index)
compared to other SIMD load/stores.

Also remove all the ifdef guards.

Bug: v8:10975
Change-Id: Ib0a1f7bb6c4bdf83d81a65b4e02199b792d13837
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2645568Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72377}

src/compiler/backend/instruction-selector.cc

@@ -2782,14 +2782,6 @@ void InstructionSelector::VisitI16x8ExtAddPairwiseI8x16U(Node* node) {
 #endif  // !V8_TARGET_ARCH_ARM64 && !V8_TARGET_ARCH_ARM && !V8_TARGET_ARCH_X64
         // && !V8_TARGET_ARCH_IA32
 
-#if !V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_IA32 && !V8_TARGET_ARCH_ARM64 && \
-    !V8_TARGET_ARCH_ARM && !V8_TARGET_ARCH_MIPS64
-// TODO(v8:10975): Prototyping load lane and store lane.
-void InstructionSelector::VisitLoadLane(Node* node) { UNIMPLEMENTED(); }
-void InstructionSelector::VisitStoreLane(Node* node) { UNIMPLEMENTED(); }
-#endif  // !V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_IA32 && !V8_TARGET_ARCH_ARM64
-        // && !V8_TARGET_ARCH_ARM && !V8_TARGET_ARCH_MIPS64
-
 #if !V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_IA32 && !V8_TARGET_ARCH_ARM64 && \
     !V8_TARGET_ARCH_ARM
 // TODO(v8:10983) Prototyping sign select.

src/wasm/function-body-decoder-impl.h

@@ -1839,7 +1839,6 @@ class WasmDecoder : public Decoder {
             return length;
           FOREACH_SIMD_1_OPERAND_OPCODE(DECLARE_OPCODE_CASE)
             return length + 1;
-          // clang-format on
           FOREACH_SIMD_MEM_OPCODE(DECLARE_OPCODE_CASE)
           case kExprPrefetchT:
           case kExprPrefetchNT: {
@@ -1848,20 +1847,14 @@ class WasmDecoder : public Decoder {
                                                 kConservativelyAssumeMemory64);
             return length + imm.length;
           }
-          case kExprS128Load8Lane:
-          case kExprS128Load16Lane:
-          case kExprS128Load32Lane:
-          case kExprS128Load64Lane:
-          case kExprS128Store8Lane:
-          case kExprS128Store16Lane:
-          case kExprS128Store32Lane:
-          case kExprS128Store64Lane: {
-            MemoryAccessImmediate<validate> imm(decoder, pc + length,
-                                                UINT32_MAX,
+          FOREACH_SIMD_MEM_1_OPERAND_OPCODE(DECLARE_OPCODE_CASE) {
+            MemoryAccessImmediate<validate> imm(
+                decoder, pc + length, UINT32_MAX,
                 kConservativelyAssumeMemory64);
             // 1 more byte for lane index immediate.
             return length + imm.length + 1;
           }
+          // clang-format on
           // Shuffles require a byte per lane, or 16 immediate bytes.
           case kExprS128Const:
           case kExprI8x16Shuffle:

src/wasm/wasm-opcodes-inl.h

@@ -590,6 +590,7 @@ constexpr WasmOpcodeSig GetAsmJsOpcodeSigIndex(byte opcode) {
 constexpr WasmOpcodeSig GetSimdOpcodeSigIndex(byte opcode) {
 #define CASE(name, opc, sig) opcode == (opc & 0xFF) ? kSigEnum_##sig:
   return FOREACH_SIMD_0_OPERAND_OPCODE(CASE) FOREACH_SIMD_MEM_OPCODE(CASE)
+      FOREACH_SIMD_MEM_1_OPERAND_OPCODE(CASE)
           FOREACH_SIMD_POST_MVP_MEM_OPCODE(CASE) kSigEnum_None;
 #undef CASE
 }

src/wasm/wasm-opcodes.h

@@ -295,6 +295,16 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   V(S128Load32Zero, 0xfdfc, s_i)   \
   V(S128Load64Zero, 0xfdfd, s_i)
 
+#define FOREACH_SIMD_MEM_1_OPERAND_OPCODE(V) \
+  V(S128Load8Lane, 0xfd58, s_is)             \
+  V(S128Load16Lane, 0xfd59, s_is)            \
+  V(S128Load32Lane, 0xfd5a, s_is)            \
+  V(S128Load64Lane, 0xfd5b, s_is)            \
+  V(S128Store8Lane, 0xfd5c, v_is)            \
+  V(S128Store16Lane, 0xfd5d, v_is)           \
+  V(S128Store32Lane, 0xfd5e, v_is)           \
+  V(S128Store64Lane, 0xfd5f, v_is)
+
 #define FOREACH_SIMD_CONST_OPCODE(V) V(S128Const, 0xfd0c, _)
 
 #define FOREACH_SIMD_MASK_OPERAND_OPCODE(V) V(I8x16Shuffle, 0xfd0d, s_ss)
@@ -484,14 +494,6 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   V(F64x2NearestInt, 0xfddf, s_s)
 
 #define FOREACH_SIMD_POST_MVP_MEM_OPCODE(V) \
-  V(S128Load8Lane, 0xfd58, s_is)            \
-  V(S128Load16Lane, 0xfd59, s_is)           \
-  V(S128Load32Lane, 0xfd5a, s_is)           \
-  V(S128Load64Lane, 0xfd5b, s_is)           \
-  V(S128Store8Lane, 0xfd5c, v_is)           \
-  V(S128Store16Lane, 0xfd5d, v_is)          \
-  V(S128Store32Lane, 0xfd5e, v_is)          \
-  V(S128Store64Lane, 0xfd5f, v_is)          \
   V(PrefetchT, 0xfdc5, v_i)                 \
   V(PrefetchNT, 0xfdc6, v_i)
 
@@ -558,6 +560,7 @@ bool V8_EXPORT_PRIVATE IsJSCompatibleSignature(const FunctionSig* sig,
   FOREACH_SIMD_1_OPERAND_OPCODE(V)     \
   FOREACH_SIMD_MASK_OPERAND_OPCODE(V)  \
   FOREACH_SIMD_MEM_OPCODE(V)           \
+  FOREACH_SIMD_MEM_1_OPERAND_OPCODE(V) \
   FOREACH_SIMD_POST_MVP_MEM_OPCODE(V)  \
   FOREACH_SIMD_CONST_OPCODE(V)
 

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

@@ -4175,13 +4175,9 @@ WASM_SIMD_TEST(S128Load64Zero) {
   RunLoadZeroTest<int64_t>(execution_tier, lower_simd, kExprS128Load64Zero);
 }
 
-#if V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_ARM64 || \
-    V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_S390X || V8_TARGET_ARCH_MIPS64
-// TODO(v8:10975): Prototyping load lane and store lane.
 template <typename T>
 void RunLoadLaneTest(TestExecutionTier execution_tier, LowerSimd lower_simd,
                      WasmOpcode load_op, WasmOpcode splat_op) {
-  FLAG_SCOPE(wasm_simd_post_mvp);
   WasmOpcode const_op =
       splat_op == kExprI64x2Splat ? kExprI64Const : kExprI32Const;
 
@@ -4280,8 +4276,6 @@ WASM_SIMD_TEST_NO_LOWERING(S128Load64Lane) {
 template <typename T>
 void RunStoreLaneTest(TestExecutionTier execution_tier, LowerSimd lower_simd,
                       WasmOpcode store_op, WasmOpcode splat_op) {
-  FLAG_SCOPE(wasm_simd_post_mvp);
-
   constexpr int lanes = kSimd128Size / sizeof(T);
   constexpr int mem_index = 16;  // Store to mem index 16 (bytes).
   constexpr int splat_value = 33;
@@ -4372,9 +4366,6 @@ WASM_SIMD_TEST_NO_LOWERING(S128Store64Lane) {
                             kExprI64x2Splat);
 }
 
-#endif  // V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_ARM64 ||
-        // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_S390X || V8_TARGET_ARCH_MIPS64
-
 #define WASM_SIMD_ANYTRUE_TEST(format, lanes, max, param_type)                \
   WASM_SIMD_TEST(S##format##AnyTrue) {                                        \
     FLAG_SCOPE(wasm_simd_post_mvp);                                           \