[wasm] Make ordering of atomic ops consistent

Bug: v8:6532
Change-Id: Ib11f01be1d7fec9107ceb0ee13add83da4b88e95
Reviewed-on: https://chromium-review.googlesource.com/924647Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51402}

src/compiler/wasm-compiler.cc

@@ -4490,22 +4490,22 @@ Node* WasmGraphBuilder::Simd8x16ShuffleOp(const uint8_t shuffle[16],
 
 #define ATOMIC_BINOP_LIST(V)              \
   V(I32AtomicAdd, Add, Uint32)            \
-  V(I32AtomicSub, Sub, Uint32)            \
-  V(I32AtomicAnd, And, Uint32)            \
-  V(I32AtomicOr, Or, Uint32)              \
-  V(I32AtomicXor, Xor, Uint32)            \
-  V(I32AtomicExchange, Exchange, Uint32)  \
   V(I32AtomicAdd8U, Add, Uint8)           \
-  V(I32AtomicSub8U, Sub, Uint8)           \
-  V(I32AtomicAnd8U, And, Uint8)           \
-  V(I32AtomicOr8U, Or, Uint8)             \
-  V(I32AtomicXor8U, Xor, Uint8)           \
-  V(I32AtomicExchange8U, Exchange, Uint8) \
   V(I32AtomicAdd16U, Add, Uint16)         \
+  V(I32AtomicSub, Sub, Uint32)            \
+  V(I32AtomicSub8U, Sub, Uint8)           \
   V(I32AtomicSub16U, Sub, Uint16)         \
+  V(I32AtomicAnd, And, Uint32)            \
+  V(I32AtomicAnd8U, And, Uint8)           \
   V(I32AtomicAnd16U, And, Uint16)         \
+  V(I32AtomicOr, Or, Uint32)              \
+  V(I32AtomicOr8U, Or, Uint8)             \
   V(I32AtomicOr16U, Or, Uint16)           \
+  V(I32AtomicXor, Xor, Uint32)            \
+  V(I32AtomicXor8U, Xor, Uint8)           \
   V(I32AtomicXor16U, Xor, Uint16)         \
+  V(I32AtomicExchange, Exchange, Uint32)  \
+  V(I32AtomicExchange8U, Exchange, Uint8) \
   V(I32AtomicExchange16U, Exchange, Uint16)
 
 #define ATOMIC_TERNARY_LIST(V)                          \

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

@@ -56,25 +56,25 @@ struct WasmException;
 
 #define ATOMIC_OP_LIST(V)              \
   V(I32AtomicLoad, Uint32)             \
-  V(I32AtomicAdd, Uint32)              \
-  V(I32AtomicSub, Uint32)              \
-  V(I32AtomicAnd, Uint32)              \
-  V(I32AtomicOr, Uint32)               \
-  V(I32AtomicXor, Uint32)              \
-  V(I32AtomicExchange, Uint32)         \
   V(I32AtomicLoad8U, Uint8)            \
-  V(I32AtomicAdd8U, Uint8)             \
-  V(I32AtomicSub8U, Uint8)             \
-  V(I32AtomicAnd8U, Uint8)             \
-  V(I32AtomicOr8U, Uint8)              \
-  V(I32AtomicXor8U, Uint8)             \
-  V(I32AtomicExchange8U, Uint8)        \
   V(I32AtomicLoad16U, Uint16)          \
+  V(I32AtomicAdd, Uint32)              \
+  V(I32AtomicAdd8U, Uint8)             \
   V(I32AtomicAdd16U, Uint16)           \
+  V(I32AtomicSub, Uint32)              \
+  V(I32AtomicSub8U, Uint8)             \
   V(I32AtomicSub16U, Uint16)           \
+  V(I32AtomicAnd, Uint32)              \
+  V(I32AtomicAnd8U, Uint8)             \
   V(I32AtomicAnd16U, Uint16)           \
+  V(I32AtomicOr, Uint32)               \
+  V(I32AtomicOr8U, Uint8)              \
   V(I32AtomicOr16U, Uint16)            \
+  V(I32AtomicXor, Uint32)              \
+  V(I32AtomicXor8U, Uint8)             \
   V(I32AtomicXor16U, Uint16)           \
+  V(I32AtomicExchange, Uint32)         \
+  V(I32AtomicExchange8U, Uint8)        \
   V(I32AtomicExchange16U, Uint16)      \
   V(I32AtomicCompareExchange, Uint32)  \
   V(I32AtomicCompareExchange8U, Uint8) \