- Fix sin-cos merge, add a flag to turn it on/off. Using fsincos is much slower than calling out to…

runtime/vm/disassembler_ia32.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/disassembler.h"
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 #include "platform/utils.h"
 #include "vm/allocation.h"
@@ skipping 1006 matching lines @@
     switch (b2) {
       case 0xE0: mnem = "fchs"; break;
       case 0xE1: mnem = "fabs"; break;
       case 0xE4: mnem = "ftst"; break;
       case 0xE8: mnem = "fld1"; break;
       case 0xEE: mnem = "fldz"; break;
       case 0xF2: mnem = "fptan"; break;
       case 0xF5: mnem = "fprem1"; break;
       case 0xF8: mnem = "fprem"; break;
       case 0xF7: mnem = "fincstp"; break;
+      case 0xFB: mnem = "fsincos"; break;
       case 0xFE: mnem = "fsin"; break;
       case 0xFF: mnem = "fcos"; break;
     }
     if (mnem != NULL) {
       Print(mnem);
       return 2;
     } else if ((b2 & 0xF8) == 0xC8) {
       Print("fxch st");
       PrintInt(b2 & 0x7);
       return 2;
@@ skipping 810 matching lines @@
   }
   hex_buffer[hex_index] = '\0';
   if (out_instr_len) {
     *out_instr_len = instruction_length;
   }
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32