[wasm] Remove unnecessary kExprNop from WASM_BR and other macros.

src/wasm/wasm-macro-gen.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_WASM_MACRO_GEN_H_
 #define V8_WASM_MACRO_GEN_H_
 
 #include "src/wasm/wasm-opcodes.h"
 
 #define U32_LE(v)                                    \
@@ skipping 46 matching lines @@
 // Control.
 //------------------------------------------------------------------------------
 #define WASM_NOP kExprNop
 
 #define ARITY_0 0
 #define ARITY_1 1
 #define DEPTH_0 0
 #define DEPTH_1 1
 
 #define WASM_BLOCK(count, ...) kExprBlock, __VA_ARGS__, kExprEnd
-#define WASM_INFINITE_LOOP \
-  kExprLoop, kExprNop, kExprBr, ARITY_0, DEPTH_0, kExprEnd
+#define WASM_INFINITE_LOOP kExprLoop, kExprBr, ARITY_0, DEPTH_0, kExprEnd
 #define WASM_LOOP(count, ...) kExprLoop, __VA_ARGS__, kExprEnd
 #define WASM_IF(cond, tstmt) cond, kExprIf, tstmt, kExprEnd
 #define WASM_IF_ELSE(cond, tstmt, fstmt) \
   cond, kExprIf, tstmt, kExprElse, fstmt, kExprEnd
 #define WASM_SELECT(tval, fval, cond) tval, fval, cond, kExprSelect
-#define WASM_BR(depth) kExprNop, kExprBr, ARITY_0, static_cast<byte>(depth)
+#define WASM_BR(depth) kExprBr, ARITY_0, static_cast<byte>(depth)
 #define WASM_BR_IF(depth, cond) \
   cond, kExprBrIf, ARITY_0, static_cast<byte>(depth)
 #define WASM_BRV(depth, val) val, kExprBr, ARITY_1, static_cast<byte>(depth)
 #define WASM_BRV_IF(depth, val, cond) \
   val, cond, kExprBrIf, ARITY_1, static_cast<byte>(depth)
-#define WASM_BREAK(depth) \
-  kExprNop, kExprBr, ARITY_0, static_cast<byte>(depth + 1)
-#define WASM_CONTINUE(depth) \
-  kExprNop, kExprBr, ARITY_0, static_cast<byte>(depth)
+#define WASM_BREAK(depth) kExprBr, ARITY_0, static_cast<byte>(depth + 1)
+#define WASM_CONTINUE(depth) kExprBr, ARITY_0, static_cast<byte>(depth)
 #define WASM_BREAKV(depth, val) \
   val, kExprBr, ARITY_1, static_cast<byte>(depth + 1)
 #define WASM_RETURN0 kExprReturn, ARITY_0
 #define WASM_RETURN1(val) val, kExprReturn, ARITY_1
 #define WASM_RETURNN(count, ...) __VA_ARGS__, kExprReturn, count
 #define WASM_UNREACHABLE kExprUnreachable
 
 #define WASM_BR_TABLE(key, count, ...) \
   key, kExprBrTable, ARITY_0, U32V_1(count), __VA_ARGS__
 
@@ skipping 483 matching lines @@
 #define SIG_ENTRY_x(r) kWasmFunctionTypeForm, 0, 1, r
 #define SIG_ENTRY_x_x(r, a) kWasmFunctionTypeForm, 1, a, 1, r
 #define SIG_ENTRY_x_xx(r, a, b) kWasmFunctionTypeForm, 2, a, b, 1, r
 #define SIG_ENTRY_x_xxx(r, a, b, c) kWasmFunctionTypeForm, 3, a, b, c, 1, r
 #define SIZEOF_SIG_ENTRY_x 4
 #define SIZEOF_SIG_ENTRY_x_x 5
 #define SIZEOF_SIG_ENTRY_x_xx 6
 #define SIZEOF_SIG_ENTRY_x_xxx 7
 
 #endif  // V8_WASM_MACRO_GEN_H_