[wasm-simd][cleanup] Consolidate macros for SIMD loads

The load splat, load extend, load zero macros are essentially the same,
consolidate them into a single macro.

Change-Id: Ic812043b37524deb3a9e6ddc223bb95ae77e1d4d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2304715
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68978}

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

@@ -3470,7 +3470,7 @@ WASM_SIMD_TEST(S8x16LoadSplatOffset) {
   int8_t* global = r.builder().AddGlobal<int8_t>(kWasmS128);
   BUILD(r,
         WASM_SET_GLOBAL(
-            0, WASM_SIMD_LOAD_SPLAT_OFFSET(kExprS8x16LoadSplat, WASM_I32V(0),
+            0, WASM_SIMD_LOAD_OP_OFFSET(kExprS8x16LoadSplat, WASM_I32V(0),
                                         U32V_2(offset))),
         WASM_ONE);
 
@@ -3491,7 +3491,7 @@ void RunLoadSplatTest(ExecutionTier execution_tier, LowerSimd lower_simd,
   WasmRunner<int32_t> r(execution_tier, lower_simd);
   T* memory = r.builder().AddMemoryElems<T>(kWasmPageSize / sizeof(T));
   T* global = r.builder().AddGlobal<T>(kWasmS128);
-  BUILD(r, WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_SPLAT(op, WASM_I32V(mem_index))),
+  BUILD(r, WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_OP(op, WASM_I32V(mem_index))),
         WASM_ONE);
 
   for (T x : compiler::ValueHelper::GetVector<T>()) {
@@ -3534,7 +3534,7 @@ void RunLoadExtendTest(ExecutionTier execution_tier, LowerSimd lower_simd,
     S* memory = r.builder().AddMemoryElems<S>(kWasmPageSize / sizeof(S));
     T* global = r.builder().AddGlobal<T>(kWasmS128);
     BUILD(r,
-          WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_EXTEND_ALIGNMENT(
+          WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_OP_ALIGNMENT(
                                  op, WASM_I32V(mem_index), alignment)),
           WASM_ONE);
 
@@ -3556,9 +3556,8 @@ void RunLoadExtendTest(ExecutionTier execution_tier, LowerSimd lower_simd,
     S* memory = r.builder().AddMemoryElems<S>(kWasmPageSize / sizeof(S));
     T* global = r.builder().AddGlobal<T>(kWasmS128);
     constexpr byte offset = sizeof(S);
-    BUILD(
-        r,
-        WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_EXTEND_OFFSET(op, WASM_ZERO, offset)),
+    BUILD(r,
+          WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_OP_OFFSET(op, WASM_ZERO, offset)),
           WASM_ONE);
 
     // Let max_s be the max_s value for type S, we set up the memory as such:
@@ -3620,9 +3619,7 @@ void RunLoadZeroTest(ExecutionTier execution_tier, LowerSimd lower_simd,
   WasmRunner<int32_t> r(execution_tier, lower_simd);
   S* memory = r.builder().AddMemoryElems<S>(kWasmPageSize / sizeof(S));
   S* global = r.builder().AddGlobal<S>(kWasmS128);
-  BUILD(
-      r,
-      WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_ZERO_EXTEND(op, WASM_I32V(mem_index))),
+  BUILD(r, WASM_SET_GLOBAL(0, WASM_SIMD_LOAD_OP(op, WASM_I32V(mem_index))),
         WASM_ONE);
 
   S sentinel = S{-1};
@@ -3936,9 +3933,9 @@ WASM_EXTRACT_I16x8_TEST(S, UINT16) WASM_EXTRACT_I16x8_TEST(I, INT16)
 #undef WASM_SIMD_F64x2_QFMS
 #undef WASM_SIMD_F32x4_QFMA
 #undef WASM_SIMD_F32x4_QFMS
-#undef WASM_SIMD_LOAD_SPLAT
-#undef WASM_SIMD_LOAD_EXTEND
-#undef WASM_SIMD_LOAD_ZERO_EXTEND
+#undef WASM_SIMD_LOAD_OP
+#undef WASM_SIMD_LOAD_OP_OFFSET
+#undef WASM_SIMD_LOAD_OP_ALIGNMENT
 
 }  // namespace test_run_wasm_simd
 }  // namespace wasm

test/common/wasm/wasm-macro-gen.h

@@ -862,18 +862,13 @@ inline WasmOpcode LoadStoreOpcodeOf(MachineType type, bool store) {
 #define WASM_SIMD_F32x4_QFMA(a, b, c) a, b, c, WASM_SIMD_OP(kExprF32x4Qfma)
 #define WASM_SIMD_F32x4_QFMS(a, b, c) a, b, c, WASM_SIMD_OP(kExprF32x4Qfms)
 
-#define WASM_SIMD_LOAD_SPLAT(opcode, index) \
+// Like WASM_SIMD_LOAD_MEM but needs the load opcode.
+#define WASM_SIMD_LOAD_OP(opcode, index) \
   index, WASM_SIMD_OP(opcode), ZERO_ALIGNMENT, ZERO_OFFSET
-#define WASM_SIMD_LOAD_SPLAT_OFFSET(opcode, index, offset) \
+#define WASM_SIMD_LOAD_OP_OFFSET(opcode, index, offset) \
   index, WASM_SIMD_OP(opcode), ZERO_ALIGNMENT, offset
-#define WASM_SIMD_LOAD_EXTEND(opcode, index) \
-  index, WASM_SIMD_OP(opcode), ZERO_ALIGNMENT, ZERO_OFFSET
-#define WASM_SIMD_LOAD_EXTEND_OFFSET(opcode, index, offset) \
-  index, WASM_SIMD_OP(opcode), ZERO_ALIGNMENT, offset
-#define WASM_SIMD_LOAD_EXTEND_ALIGNMENT(opcode, index, alignment) \
+#define WASM_SIMD_LOAD_OP_ALIGNMENT(opcode, index, alignment) \
   index, WASM_SIMD_OP(opcode), alignment, ZERO_OFFSET
-#define WASM_SIMD_LOAD_ZERO_EXTEND(opcode, index) \
-  index, WASM_SIMD_OP(opcode), ZERO_ALIGNMENT, ZERO_OFFSET
 
 //------------------------------------------------------------------------------
 // Compilation Hints.