Add optimized ICs for new CanvasArray types. This is a follow-on CL to...

src/x64/assembler-x64.cc

 // Copyright 2009 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 556 matching lines @@
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0x66);  // Operand size override prefix.
   emit_optional_rex_32(dst);
   if (is_int8(src.value_)) {
     emit(0x83);
     emit_modrm(subcode, dst);
     emit(src.value_);
   } else if (dst.is(rax)) {
     emit(0x05 | (subcode << 3));
-    emitl(src.value_);
+    emitw(src.value_);
   } else {
     emit(0x81);
     emit_modrm(subcode, dst);
-    emitl(src.value_);
+    emitw(src.value_);
   }
 }
 
 
 void Assembler::immediate_arithmetic_op_16(byte subcode,
                                            const Operand& dst,
                                            Immediate src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0x66);  // Operand size override prefix.
   emit_optional_rex_32(dst);
   if (is_int8(src.value_)) {
     emit(0x83);
     emit_operand(subcode, dst);
     emit(src.value_);
   } else {
     emit(0x81);
     emit_operand(subcode, dst);
-    emitl(src.value_);
+    emitw(src.value_);
   }
 }
 
 
 void Assembler::immediate_arithmetic_op_32(byte subcode,
                                            Register dst,
                                            Immediate src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_optional_rex_32(dst);
@@ skipping 1611 matching lines @@
 
 
 void Assembler::fucompp() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0xDA);
   emit(0xE9);
 }
 
 
+void Assembler::fucomi(int i) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  emit(0xDB);
+  emit(0xE8 + i);
+}
+
+
 void Assembler::fucomip() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0xDF);
   emit(0xE9);
 }
 
 
 void Assembler::fcompp() {
   EnsureSpace ensure_space(this);
@@ skipping 272 matching lines @@
     written_position_ = current_position_;
   }
 }
 
 
 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask |
                                   1 << RelocInfo::INTERNAL_REFERENCE |
                                   1 << RelocInfo::JS_RETURN;
 
 } }  // namespace v8::internal