From ce854aa0c52252add7c2390efefbde1123166cec Mon Sep 17 00:00:00 2001
From: "palfia@homejinni.com"
 <palfia@homejinni.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Mon, 4 Mar 2013 14:41:39 +0000
Subject: [PATCH] MIPS: Minor cleanup of CompareIC state

Port r13775 (1fd19d83)

Original commit message:
Allow transitioning from KNOWN_OBJECT to KNONW_OBJECT or OBJECT.
Also, rename HEAP_NUMBER IC states to NUMBER, since they handle Smis, too.

BUG=

Review URL: https://codereview.chromium.org/12387076

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13805 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---
 src/mips/code-stubs-mips.cc | 32 +++++++++++++++-----------------
 1 file changed, 15 insertions(+), 17 deletions(-)

diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 1dada8c..4eba0fa 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -1784,7 +1784,7 @@ static void ICCompareStub_CheckInputType(MacroAssembler* masm,
   Label ok;
   if (expected == CompareIC::SMI) {
     __ JumpIfNotSmi(input, fail);
-  } else if (expected == CompareIC::HEAP_NUMBER) {
+  } else if (expected == CompareIC::NUMBER) {
     __ JumpIfSmi(input, &ok);
     __ CheckMap(input, scratch, Heap::kHeapNumberMapRootIndex, fail,
                 DONT_DO_SMI_CHECK);
@@ -2143,8 +2143,8 @@ void UnaryOpStub::Generate(MacroAssembler* masm) {
     case UnaryOpIC::SMI:
       GenerateSmiStub(masm);
       break;
-    case UnaryOpIC::HEAP_NUMBER:
-      GenerateHeapNumberStub(masm);
+    case UnaryOpIC::NUMBER:
+      GenerateNumberStub(masm);
       break;
     case UnaryOpIC::GENERIC:
       GenerateGenericStub(masm);
@@ -2224,13 +2224,13 @@ void UnaryOpStub::GenerateSmiCodeBitNot(MacroAssembler* masm,
 
 
 // TODO(svenpanne): Use virtual functions instead of switch.
-void UnaryOpStub::GenerateHeapNumberStub(MacroAssembler* masm) {
+void UnaryOpStub::GenerateNumberStub(MacroAssembler* masm) {
   switch (op_) {
     case Token::SUB:
-      GenerateHeapNumberStubSub(masm);
+      GenerateNumberStubSub(masm);
       break;
     case Token::BIT_NOT:
-      GenerateHeapNumberStubBitNot(masm);
+      GenerateNumberStubBitNot(masm);
       break;
     default:
       UNREACHABLE();
@@ -2238,7 +2238,7 @@ void UnaryOpStub::GenerateHeapNumberStub(MacroAssembler* masm) {
 }
 
 
-void UnaryOpStub::GenerateHeapNumberStubSub(MacroAssembler* masm) {
+void UnaryOpStub::GenerateNumberStubSub(MacroAssembler* masm) {
   Label non_smi, slow, call_builtin;
   GenerateSmiCodeSub(masm, &non_smi, &call_builtin);
   __ bind(&non_smi);
@@ -2250,7 +2250,7 @@ void UnaryOpStub::GenerateHeapNumberStubSub(MacroAssembler* masm) {
 }
 
 
-void UnaryOpStub::GenerateHeapNumberStubBitNot(MacroAssembler* masm) {
+void UnaryOpStub::GenerateNumberStubBitNot(MacroAssembler* masm) {
   Label non_smi, slow;
   GenerateSmiCodeBitNot(masm, &non_smi);
   __ bind(&non_smi);
@@ -2665,8 +2665,7 @@ void BinaryOpStub_GenerateFPOperation(MacroAssembler* masm,
               masm, right, destination, f14, f16, a2, a3, heap_number_map,
               scratch1, scratch2, f2, miss);
         } else {
-          Label* fail = (right_type == BinaryOpIC::HEAP_NUMBER) ? miss
-                                                                : not_numbers;
+          Label* fail = (right_type == BinaryOpIC::NUMBER) ? miss : not_numbers;
           FloatingPointHelper::LoadNumber(
               masm, destination, right, f14, a2, a3, heap_number_map,
               scratch1, scratch2, fail);
@@ -2678,8 +2677,7 @@ void BinaryOpStub_GenerateFPOperation(MacroAssembler* masm,
               masm, left, destination, f12, f16, a0, a1, heap_number_map,
               scratch1, scratch2, f2, miss);
         } else {
-          Label* fail = (left_type == BinaryOpIC::HEAP_NUMBER) ? miss
-                                                               : not_numbers;
+          Label* fail = (left_type == BinaryOpIC::NUMBER) ? miss : not_numbers;
           FloatingPointHelper::LoadNumber(
               masm, destination, left, f12, a0, a1, heap_number_map,
               scratch1, scratch2, fail);
@@ -3078,7 +3076,7 @@ void BinaryOpStub::GenerateInt32Stub(MacroAssembler* masm) {
         __ bind(&return_heap_number);
         // Return a heap number, or fall through to type transition or runtime
         // call if we can't.
-        if (result_type_ >= ((op_ == Token::DIV) ? BinaryOpIC::HEAP_NUMBER
+        if (result_type_ >= ((op_ == Token::DIV) ? BinaryOpIC::NUMBER
                                                  : BinaryOpIC::INT32)) {
           // We are using FPU registers so s0 is available.
           heap_number_result = s0;
@@ -3307,11 +3305,11 @@ void BinaryOpStub::GenerateOddballStub(MacroAssembler* masm) {
   }
   __ bind(&done);
 
-  GenerateHeapNumberStub(masm);
+  GenerateNumberStub(masm);
 }
 
 
-void BinaryOpStub::GenerateHeapNumberStub(MacroAssembler* masm) {
+void BinaryOpStub::GenerateNumberStub(MacroAssembler* masm) {
   Label call_runtime, transition;
   BinaryOpStub_GenerateFPOperation(
       masm, left_type_, right_type_, false,
@@ -7008,8 +7006,8 @@ void ICCompareStub::GenerateSmis(MacroAssembler* masm) {
 }
 
 
-void ICCompareStub::GenerateHeapNumbers(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::HEAP_NUMBER);
+void ICCompareStub::GenerateNumbers(MacroAssembler* masm) {
+  ASSERT(state_ == CompareIC::NUMBER);
 
   Label generic_stub;
   Label unordered, maybe_undefined1, maybe_undefined2;
-- 
2.7.4