[wasm] Make Opcode names consistent across architectures, implementations

src/compiler/x64/instruction-codes-x64.h

Index: src/compiler/x64/instruction-codes-x64.h
diff --git a/src/compiler/x64/instruction-codes-x64.h b/src/compiler/x64/instruction-codes-x64.h
index ba4a1ff96f1a7ae0b8ccf4261de85f56f12595fc..0f944a2666edbea3edd4053db8898a7180f8aecc 100644
--- a/src/compiler/x64/instruction-codes-x64.h
+++ b/src/compiler/x64/instruction-codes-x64.h
@@ -143,23 +143,23 @@ namespace compiler {
   V(X64Push)                       \
   V(X64Poke)                       \
   V(X64StackCheck)                 \
-  V(X64Int32x4Splat)               \
-  V(X64Int32x4ExtractLane)         \
-  V(X64Int32x4ReplaceLane)         \
-  V(X64Int32x4Add)                 \
-  V(X64Int32x4Sub)                 \
-  V(X64Int32x4Mul)                 \
-  V(X64Int32x4Min)                 \
-  V(X64Int32x4Max)                 \
-  V(X64Int32x4Equal)               \
-  V(X64Int32x4NotEqual)            \
-  V(X64Int32x4ShiftLeftByScalar)   \
-  V(X64Int32x4ShiftRightByScalar)  \
-  V(X64Uint32x4ShiftRightByScalar) \
-  V(X64Uint32x4Min)                \
-  V(X64Uint32x4Max)                \
-  V(X64Simd32x4Select)             \
-  V(X64Simd128Zero)
+  V(X64I32x4Splat)                 \
+  V(X64I32x4ExtractLane)           \
+  V(X64I32x4ReplaceLane)           \
+  V(X64I32x4Add)                   \
+  V(X64I32x4Sub)                   \
+  V(X64I32x4Mul)                   \
+  V(X64I32x4MinS)                  \
+  V(X64I32x4MaxS)                  \
+  V(X64I32x4Eq)                    \
+  V(X64I32x4Ne)                    \
+  V(X64I32x4Shl)                   \
+  V(X64I32x4ShrS)                  \
+  V(X64I32x4ShrU)                  \
+  V(X64I32x4MinU)                  \
+  V(X64I32x4MaxU)                  \
+  V(X64S32x4Select)                \
+  V(X64S128Zero)
 
 // Addressing modes represent the "shape" of inputs to an instruction.
 // Many instructions support multiple addressing modes. Addressing modes