From: titzer@chromium.org <titzer@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Wed, 24 Jul 2013 10:48:16 +0000 (+0000)
Subject: Remove HCompareConstantEqAndBranch (never used), and its corresponding Lithium instru... 
X-Git-Tag: upstream/4.7.83~13230
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=82a54b0077dd4334d650156518d52ca46bbf6ecf;p=platform%2Fupstream%2Fv8.git

Remove HCompareConstantEqAndBranch (never used), and its corresponding Lithium instructions.

BUG=
R=bmeurer@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/19691005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15853 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index a84045b..07f007d 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1726,13 +1726,6 @@ LInstruction* LChunkBuilder::DoCompareObjectEqAndBranch(
 }
 
 
-LInstruction* LChunkBuilder::DoCompareConstantEqAndBranch(
-    HCompareConstantEqAndBranch* instr) {
-  LOperand* value = UseRegisterAtStart(instr->value());
-  return new(zone()) LCmpConstantEqAndBranch(value);
-}
-
-
 LInstruction* LChunkBuilder::DoIsObjectAndBranch(HIsObjectAndBranch* instr) {
   ASSERT(instr->value()->representation().IsTagged());
   LOperand* value = UseRegisterAtStart(instr->value());
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index 2055e6a..616b2da 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -74,7 +74,6 @@ class LCodeGen;
   V(ClampIToUint8)                              \
   V(ClampTToUint8)                              \
   V(ClassOfTestAndBranch)                       \
-  V(CmpConstantEqAndBranch)                     \
   V(CompareNumericAndBranch)                    \
   V(CmpObjectEqAndBranch)                       \
   V(CmpMapAndBranch)                            \
@@ -889,20 +888,6 @@ class LCmpObjectEqAndBranch: public LControlInstruction<2, 0> {
 };
 
 
-class LCmpConstantEqAndBranch: public LControlInstruction<1, 0> {
- public:
-  explicit LCmpConstantEqAndBranch(LOperand* left) {
-    inputs_[0] = left;
-  }
-
-  LOperand* left() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(CmpConstantEqAndBranch,
-                               "cmp-constant-eq-and-branch")
-  DECLARE_HYDROGEN_ACCESSOR(CompareConstantEqAndBranch)
-};
-
-
 class LIsObjectAndBranch: public LControlInstruction<1, 1> {
  public:
   LIsObjectAndBranch(LOperand* value, LOperand* temp) {
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index fab5a1b..1463166 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -2366,14 +2366,6 @@ void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) {
 }
 
 
-void LCodeGen::DoCmpConstantEqAndBranch(LCmpConstantEqAndBranch* instr) {
-  Register left = ToRegister(instr->left());
-
-  __ cmp(left, Operand(instr->hydrogen()->right()));
-  EmitBranch(instr, eq);
-}
-
-
 Condition LCodeGen::EmitIsObject(Register input,
                                  Register temp1,
                                  Label* is_not_object,
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index ad27465..b6dc53e 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -101,7 +101,6 @@ class LChunkBuilder;
   V(CompareGeneric)                            \
   V(CompareObjectEqAndBranch)                  \
   V(CompareMap)                                \
-  V(CompareConstantEqAndBranch)                \
   V(Constant)                                  \
   V(Context)                                   \
   V(DateField)                                 \
@@ -3968,29 +3967,6 @@ class HCompareObjectEqAndBranch: public HTemplateControlInstruction<2, 2> {
 };
 
 
-class HCompareConstantEqAndBranch: public HUnaryControlInstruction {
- public:
-  HCompareConstantEqAndBranch(HValue* left, int right, Token::Value op)
-      : HUnaryControlInstruction(left, NULL, NULL), op_(op), right_(right) {
-    ASSERT(op == Token::EQ_STRICT);
-  }
-
-  Token::Value op() const { return op_; }
-  HValue* left() { return value(); }
-  int right() const { return right_; }
-
-  virtual Representation RequiredInputRepresentation(int index) {
-    return Representation::Integer32();
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(CompareConstantEqAndBranch);
-
- private:
-  const Token::Value op_;
-  const int right_;
-};
-
-
 class HIsObjectAndBranch: public HUnaryControlInstruction {
  public:
   explicit HIsObjectAndBranch(HValue* value)
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index f92ab17..2435e5f 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -2420,14 +2420,6 @@ void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) {
 }
 
 
-void LCodeGen::DoCmpConstantEqAndBranch(LCmpConstantEqAndBranch* instr) {
-  Register left = ToRegister(instr->left());
-
-  __ cmp(left, instr->hydrogen()->right());
-  EmitBranch(instr, equal);
-}
-
-
 Condition LCodeGen::EmitIsObject(Register input,
                                  Register temp1,
                                  Label* is_not_object,
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index e903519..aec96e0 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1736,13 +1736,6 @@ LInstruction* LChunkBuilder::DoCompareObjectEqAndBranch(
 }
 
 
-LInstruction* LChunkBuilder::DoCompareConstantEqAndBranch(
-  HCompareConstantEqAndBranch* instr) {
-  return new(zone()) LCmpConstantEqAndBranch(
-      UseRegisterAtStart(instr->value()));
-}
-
-
 LInstruction* LChunkBuilder::DoIsObjectAndBranch(HIsObjectAndBranch* instr) {
   ASSERT(instr->value()->representation().IsSmiOrTagged());
   LOperand* temp = TempRegister();
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 9dd97c1..85c0468 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -79,7 +79,6 @@ class LCodeGen;
   V(CmpObjectEqAndBranch)                       \
   V(CmpMapAndBranch)                            \
   V(CmpT)                                       \
-  V(CmpConstantEqAndBranch)                     \
   V(ConstantD)                                  \
   V(ConstantI)                                  \
   V(ConstantS)                                  \
@@ -858,20 +857,6 @@ class LCmpObjectEqAndBranch: public LControlInstruction<2, 0> {
 };
 
 
-class LCmpConstantEqAndBranch: public LControlInstruction<1, 0> {
- public:
-  explicit LCmpConstantEqAndBranch(LOperand* left) {
-    inputs_[0] = left;
-  }
-
-  LOperand* left() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(CmpConstantEqAndBranch,
-                               "cmp-constant-eq-and-branch")
-  DECLARE_HYDROGEN_ACCESSOR(CompareConstantEqAndBranch)
-};
-
-
 class LIsObjectAndBranch: public LControlInstruction<1, 1> {
  public:
   LIsObjectAndBranch(LOperand* value, LOperand* temp) {
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 4ff896d..c16467c 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -2232,13 +2232,6 @@ void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) {
 }
 
 
-void LCodeGen::DoCmpConstantEqAndBranch(LCmpConstantEqAndBranch* instr) {
-  Register left = ToRegister(instr->left());
-
-  EmitBranch(instr, eq, left, Operand(instr->hydrogen()->right()));
-}
-
-
 Condition LCodeGen::EmitIsObject(Register input,
                                  Register temp1,
                                  Register temp2,
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 553dd49..242e88f 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -1647,13 +1647,6 @@ LInstruction* LChunkBuilder::DoCompareObjectEqAndBranch(
 }
 
 
-LInstruction* LChunkBuilder::DoCompareConstantEqAndBranch(
-    HCompareConstantEqAndBranch* instr) {
-  return new(zone()) LCmpConstantEqAndBranch(
-      UseRegisterAtStart(instr->value()));
-}
-
-
 LInstruction* LChunkBuilder::DoIsObjectAndBranch(HIsObjectAndBranch* instr) {
   ASSERT(instr->value()->representation().IsTagged());
   LOperand* temp = TempRegister();
diff --git a/src/mips/lithium-mips.h b/src/mips/lithium-mips.h
index 574a836..2b55906 100644
--- a/src/mips/lithium-mips.h
+++ b/src/mips/lithium-mips.h
@@ -74,7 +74,6 @@ class LCodeGen;
   V(ClampIToUint8)                              \
   V(ClampTToUint8)                              \
   V(ClassOfTestAndBranch)                       \
-  V(CmpConstantEqAndBranch)                     \
   V(CompareNumericAndBranch)                    \
   V(CmpObjectEqAndBranch)                       \
   V(CmpMapAndBranch)                            \
@@ -882,20 +881,6 @@ class LCmpObjectEqAndBranch: public LControlInstruction<2, 0> {
 };
 
 
-class LCmpConstantEqAndBranch: public LControlInstruction<1, 0> {
- public:
-  explicit LCmpConstantEqAndBranch(LOperand* left) {
-    inputs_[0] = left;
-  }
-
-  LOperand* left() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(CmpConstantEqAndBranch,
-                               "cmp-constant-eq-and-branch")
-  DECLARE_HYDROGEN_ACCESSOR(CompareConstantEqAndBranch)
-};
-
-
 class LIsObjectAndBranch: public LControlInstruction<1, 1> {
  public:
   LIsObjectAndBranch(LOperand* value, LOperand* temp) {
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 0da9337..c7dd7df 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2081,14 +2081,6 @@ void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) {
 }
 
 
-void LCodeGen::DoCmpConstantEqAndBranch(LCmpConstantEqAndBranch* instr) {
-  Register left = ToRegister(instr->left());
-
-  __ cmpq(left, Immediate(instr->hydrogen()->right()));
-  EmitBranch(instr, equal);
-}
-
-
 Condition LCodeGen::EmitIsObject(Register input,
                                  Label* is_not_object,
                                  Label* is_object) {
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 25c22cc..1f1098e 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -1647,13 +1647,6 @@ LInstruction* LChunkBuilder::DoCompareObjectEqAndBranch(
 }
 
 
-LInstruction* LChunkBuilder::DoCompareConstantEqAndBranch(
-    HCompareConstantEqAndBranch* instr) {
-  LOperand* value = UseRegisterAtStart(instr->value());
-  return new(zone()) LCmpConstantEqAndBranch(value);
-}
-
-
 LInstruction* LChunkBuilder::DoIsObjectAndBranch(HIsObjectAndBranch* instr) {
   ASSERT(instr->value()->representation().IsTagged());
   return new(zone()) LIsObjectAndBranch(UseRegisterAtStart(instr->value()));
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 92ddc89..50e32d8 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -74,7 +74,6 @@ class LCodeGen;
   V(ClampIToUint8)                              \
   V(ClampTToUint8)                              \
   V(ClassOfTestAndBranch)                       \
-  V(CmpConstantEqAndBranch)                     \
   V(CompareNumericAndBranch)                    \
   V(CmpObjectEqAndBranch)                       \
   V(CmpMapAndBranch)                            \
@@ -832,20 +831,6 @@ class LCmpObjectEqAndBranch: public LControlInstruction<2, 0> {
 };
 
 
-class LCmpConstantEqAndBranch: public LControlInstruction<1, 0> {
- public:
-  explicit LCmpConstantEqAndBranch(LOperand* left) {
-    inputs_[0] = left;
-  }
-
-  LOperand* left() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(CmpConstantEqAndBranch,
-                               "cmp-constant-eq-and-branch")
-  DECLARE_HYDROGEN_ACCESSOR(CompareConstantEqAndBranch)
-};
-
-
 class LIsObjectAndBranch: public LControlInstruction<1, 0> {
  public:
   explicit LIsObjectAndBranch(LOperand* value) {