Optimize Math.sin and Math.cos by avoiding runtime calls.

src/ia32/assembler-ia32.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 1638 matching lines @@
 
 
 void Assembler::fchs() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   EMIT(0xD9);
   EMIT(0xE0);
 }
 
 
+void Assembler::fcos() {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  EMIT(0xD9);
+  EMIT(0xFF);
+}
+
+
+void Assembler::fsin() {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  EMIT(0xD9);
+  EMIT(0xFE);
+}
+
+
 void Assembler::fadd(int i) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_farith(0xDC, 0xC0, i);
 }
 
 
 void Assembler::fsub(int i) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
@@ skipping 527 matching lines @@
   push_insn[1] = 13;    // Skip over coverage insns.
   if (coverage_log != NULL) {
     fprintf(coverage_log, "%s\n", file_line);
     fflush(coverage_log);
   }
 }
 
 #endif
 
 } }  // namespace v8::internal