Add wasm internal opcodes for asm.js stdlib functions we're missing.

src/wasm/wasm-opcodes.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_OPCODES_H_
 #define V8_WASM_OPCODES_H_
 
 #include "src/machine-type.h"
 #include "src/signature.h"
 
@@ skipping 236 matching lines @@
   V(F32ReinterpretI32, 0xad, f_i) \
   V(F64SConvertI32, 0xae, d_i)    \
   V(F64UConvertI32, 0xaf, d_i)    \
   V(F64SConvertI64, 0xb0, d_l)    \
   V(F64UConvertI64, 0xb1, d_l)    \
   V(F64ConvertF32, 0xb2, d_f)     \
   V(F64ReinterpretI64, 0xb3, d_l) \
   V(I32ReinterpretF32, 0xb4, i_f) \
   V(I64ReinterpretF64, 0xb5, l_d)
 
+// For compatibility with Asm.js.
+#define FOREACH_ASMJS_COMPAT_OPCODE(V) \
+  V(F64Acos, 0xc0, d_d)                \
+  V(F64Asin, 0xc1, d_d)                \
+  V(F64Atan, 0xc2, d_d)                \
+  V(F64Cos, 0xc3, d_d)                 \
+  V(F64Sin, 0xc4, d_d)                 \
+  V(F64Tan, 0xc5, d_d)                 \
+  V(F64Exp, 0xc6, d_d)                 \
+  V(F64Log, 0xc7, d_d)                 \
+  V(F64Atan2, 0xc8, d_dd)              \
+  V(F64Pow, 0xc9, d_dd)                \
+  V(F64Mod, 0xca, d_dd)
+
 // All opcodes.
 #define FOREACH_OPCODE(V)     \
   FOREACH_CONTROL_OPCODE(V)   \
   FOREACH_MISC_OPCODE(V)      \
   FOREACH_SIMPLE_OPCODE(V)    \
   FOREACH_STORE_MEM_OPCODE(V) \
   FOREACH_LOAD_MEM_OPCODE(V)  \
-  FOREACH_MISC_MEM_OPCODE(V)
+  FOREACH_MISC_MEM_OPCODE(V)  \
+  FOREACH_ASMJS_COMPAT_OPCODE(V)
 
 // All signatures.
 #define FOREACH_SIGNATURE(V)         \
   V(i_ii, kAstI32, kAstI32, kAstI32) \
   V(i_i, kAstI32, kAstI32)           \
   V(i_v, kAstI32)                    \
   V(i_ff, kAstI32, kAstF32, kAstF32) \
   V(i_f, kAstI32, kAstF32)           \
   V(i_dd, kAstI32, kAstF64, kAstF64) \
   V(i_d, kAstI32, kAstF64)           \
@@ skipping 194 matching lines @@
       default:
         return "<unknown>";
     }
   }
 };
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_OPCODES_H_