From: haitao.feng@intel.com <haitao.feng@intel.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Thu, 29 Aug 2013 11:41:14 +0000 (+0000)
Subject: Consolidate SMI functions into one area for X64
X-Git-Tag: upstream/4.7.83~12754
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=94621761b8c55f7c599c3bce494af5b54583d5c8;p=platform%2Fupstream%2Fv8.git

Consolidate SMI functions into one area for X64

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23665002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16418 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 0938007..0c605d8 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -958,7 +958,10 @@ void MacroAssembler::Set(const Operand& dst, int64_t x) {
 }
 
 
-bool MacroAssembler::IsUnsafeInt(const int x) {
+// ----------------------------------------------------------------------------
+// Smi tagging, untagging and tag detection.
+
+bool MacroAssembler::IsUnsafeInt(const int32_t x) {
   static const int kMaxBits = 17;
   return !is_intn(x, kMaxBits);
 }
@@ -989,9 +992,6 @@ void MacroAssembler::SafePush(Smi* src) {
 }
 
 
-// ----------------------------------------------------------------------------
-// Smi tagging, untagging and tag detection.
-
 Register MacroAssembler::GetSmiConstant(Smi* source) {
   int value = source->value();
   if (value == 0) {
@@ -2196,6 +2196,17 @@ void MacroAssembler::AddSmiField(Register dst, const Operand& src) {
 }
 
 
+void MacroAssembler::Push(Smi* source) {
+  intptr_t smi = reinterpret_cast<intptr_t>(source);
+  if (is_int32(smi)) {
+    push(Immediate(static_cast<int32_t>(smi)));
+  } else {
+    Register constant = GetSmiConstant(source);
+    push(constant);
+  }
+}
+
+
 void MacroAssembler::PushInt64AsTwoSmis(Register src, Register scratch) {
   movq(scratch, src);
   // High bits.
@@ -2220,6 +2231,14 @@ void MacroAssembler::PopInt64AsTwoSmis(Register dst, Register scratch) {
 }
 
 
+void MacroAssembler::Test(const Operand& src, Smi* source) {
+  testl(Operand(src, kIntSize), Immediate(source->value()));
+}
+
+
+// ----------------------------------------------------------------------------
+
+
 void MacroAssembler::JumpIfNotString(Register object,
                                      Register object_map,
                                      Label* not_string,
@@ -2459,17 +2478,6 @@ void MacroAssembler::LoadGlobalCell(Register dst, Handle<Cell> cell) {
 }
 
 
-void MacroAssembler::Push(Smi* source) {
-  intptr_t smi = reinterpret_cast<intptr_t>(source);
-  if (is_int32(smi)) {
-    push(Immediate(static_cast<int32_t>(smi)));
-  } else {
-    Register constant = GetSmiConstant(source);
-    push(constant);
-  }
-}
-
-
 void MacroAssembler::Drop(int stack_elements) {
   if (stack_elements > 0) {
     addq(rsp, Immediate(stack_elements * kPointerSize));
@@ -2477,11 +2485,6 @@ void MacroAssembler::Drop(int stack_elements) {
 }
 
 
-void MacroAssembler::Test(const Operand& src, Smi* source) {
-  testl(Operand(src, kIntSize), Immediate(source->value()));
-}
-
-
 void MacroAssembler::TestBit(const Operand& src, int bits) {
   int byte_offset = bits / kBitsPerByte;
   int bit_in_byte = bits & (kBitsPerByte - 1);
diff --git a/src/x64/macro-assembler-x64.h b/src/x64/macro-assembler-x64.h
index d9fb373..8e30981 100644
--- a/src/x64/macro-assembler-x64.h
+++ b/src/x64/macro-assembler-x64.h
@@ -375,6 +375,11 @@ class MacroAssembler: public Assembler {
   // ---------------------------------------------------------------------------
   // Smi tagging, untagging and operations on tagged smis.
 
+  // Support for constant splitting.
+  bool IsUnsafeInt(const int32_t x);
+  void SafeMove(Register dst, Smi* src);
+  void SafePush(Smi* src);
+
   void InitializeSmiConstantRegister() {
     movq(kSmiConstantRegister,
          reinterpret_cast<uint64_t>(Smi::FromInt(kSmiConstantRegisterValue)),
@@ -782,11 +787,6 @@ class MacroAssembler: public Assembler {
   // Move if the registers are not identical.
   void Move(Register target, Register source);
 
-  // Support for constant splitting.
-  bool IsUnsafeInt(const int x);
-  void SafeMove(Register dst, Smi* src);
-  void SafePush(Smi* src);
-
   // Bit-field support.
   void TestBit(const Operand& dst, int bit_index);