Implement Math.tan in generated code.

src/x64/assembler-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2281 matching lines @@
 }
 
 
 void Assembler::fsin() {
   EnsureSpace ensure_space(this);
   emit(0xD9);
   emit(0xFE);
 }
 
 
+void Assembler::fptan() {
+  EnsureSpace ensure_space(this);
+  emit(0xD9);
+  emit(0xF2);
+}
+
+
 void Assembler::fyl2x() {
   EnsureSpace ensure_space(this);
   emit(0xD9);
   emit(0xF1);
 }
 
 
 void Assembler::fadd(int i) {
   EnsureSpace ensure_space(this);
   emit_farith(0xDC, 0xC0, i);
@@ skipping 706 matching lines @@
   // specially coded on x64 means that it is a relative 32 bit address, as used
   // by branch instructions.
   return (1 << rmode_) & kApplyMask;
 }
 
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64