[compiler] Delay allocation of code-embedded heap numbers.

src/ia32/macro-assembler-ia32.cc

 // Copyright 2012 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.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/bootstrapper.h"
@@ skipping 725 matching lines @@
   test(ecx, Immediate(0x20));
   j(equal, &done, Label::kNear);
   mov(low, high);
   sar(high, 31);
   bind(&done);
 }
 
 bool MacroAssembler::IsUnsafeImmediate(const Immediate& x) {
   static const int kMaxImmediateBits = 17;
   if (!RelocInfo::IsNone(x.rmode_)) return false;
-  return !is_intn(x.x_, kMaxImmediateBits);
+  return !is_intn(x.immediate(), kMaxImmediateBits);
 }
 
 
 void MacroAssembler::SafeMove(Register dst, const Immediate& x) {
   if (IsUnsafeImmediate(x) && jit_cookie() != 0) {
-    Move(dst, Immediate(x.x_ ^ jit_cookie()));
+    Move(dst, Immediate(x.immediate() ^ jit_cookie()));
     xor_(dst, jit_cookie());
   } else {
     Move(dst, x);
   }
 }
 
 
 void MacroAssembler::SafePush(const Immediate& x) {
   if (IsUnsafeImmediate(x) && jit_cookie() != 0) {
-    push(Immediate(x.x_ ^ jit_cookie()));
+    push(Immediate(x.immediate() ^ jit_cookie()));
     xor_(Operand(esp, 0), Immediate(jit_cookie()));
   } else {
     push(x);
   }
 }
 
 
 void MacroAssembler::CmpObjectType(Register heap_object,
                                    InstanceType type,
                                    Register map) {
@@ skipping 1272 matching lines @@
 
 
 void MacroAssembler::Move(Register dst, Register src) {
   if (!dst.is(src)) {
     mov(dst, src);
   }
 }
 
 
 void MacroAssembler::Move(Register dst, const Immediate& x) {
-  if (x.is_zero() && RelocInfo::IsNone(x.rmode_)) {
+  if (!x.is_heap_number() && x.is_zero() && RelocInfo::IsNone(x.rmode_)) {
     xor_(dst, dst);  // Shorter than mov of 32-bit immediate 0.
   } else {
     mov(dst, x);
   }
 }
 
 
 void MacroAssembler::Move(const Operand& dst, const Immediate& x) {
   mov(dst, x);
 }
@@ skipping 712 matching lines @@
   mov(eax, dividend);
   shr(eax, 31);
   add(edx, eax);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32