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-rw-r--r--Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp18
1 files changed, 6 insertions, 12 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp b/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp
index 4a75cbdba..0957f0eab 100644
--- a/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp
+++ b/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp
@@ -421,8 +421,7 @@ void SpeculativeJIT::nonSpeculativeNonPeepholeCompareNull(Edge operand, bool inv
notCell.link(&m_jit);
// null or undefined?
COMPILE_ASSERT((JSValue::UndefinedTag | 1) == JSValue::NullTag, UndefinedTag_OR_1_EQUALS_NullTag);
- m_jit.move(argTagGPR, resultPayloadGPR);
- m_jit.or32(TrustedImm32(1), resultPayloadGPR);
+ m_jit.or32(TrustedImm32(1), argTagGPR, resultPayloadGPR);
m_jit.compare32(invert ? JITCompiler::NotEqual : JITCompiler::Equal, resultPayloadGPR, TrustedImm32(JSValue::NullTag), resultPayloadGPR);
done.link(&m_jit);
@@ -483,8 +482,7 @@ void SpeculativeJIT::nonSpeculativePeepholeBranchNull(Edge operand, Node* branch
notCell.link(&m_jit);
// null or undefined?
COMPILE_ASSERT((JSValue::UndefinedTag | 1) == JSValue::NullTag, UndefinedTag_OR_1_EQUALS_NullTag);
- m_jit.move(argTagGPR, resultGPR);
- m_jit.or32(TrustedImm32(1), resultGPR);
+ m_jit.or32(TrustedImm32(1), argTagGPR, resultGPR);
branch32(invert ? JITCompiler::NotEqual : JITCompiler::Equal, resultGPR, JITCompiler::TrustedImm32(JSValue::NullTag), taken);
}
@@ -1422,8 +1420,7 @@ void SpeculativeJIT::compileObjectToObjectOrOtherEquality(Edge leftChild, Edge r
// We know that within this branch, rightChild must not be a cell. Check if that is enough to
// prove that it is either null or undefined.
if (needsTypeCheck(rightChild, SpecCell | SpecOther)) {
- m_jit.move(op2TagGPR, resultGPR);
- m_jit.or32(TrustedImm32(1), resultGPR);
+ m_jit.or32(TrustedImm32(1), op2TagGPR, resultGPR);
typeCheck(
JSValueRegs(op2TagGPR, op2PayloadGPR), rightChild, SpecCell | SpecOther,
@@ -1531,8 +1528,7 @@ void SpeculativeJIT::compilePeepHoleObjectToObjectOrOtherEquality(Edge leftChild
jump(notTaken, ForceJump);
rightNotCell.link(&m_jit);
- m_jit.move(op2TagGPR, resultGPR);
- m_jit.or32(TrustedImm32(1), resultGPR);
+ m_jit.or32(TrustedImm32(1), op2TagGPR, resultGPR);
typeCheck(
JSValueRegs(op2TagGPR, op2PayloadGPR), rightChild, SpecCell | SpecOther,
@@ -1653,8 +1649,7 @@ void SpeculativeJIT::compileObjectOrOtherLogicalNot(Edge nodeUse)
COMPILE_ASSERT((JSValue::UndefinedTag | 1) == JSValue::NullTag, UndefinedTag_OR_1_EQUALS_NullTag);
if (needsTypeCheck(nodeUse, SpecCell | SpecOther)) {
- m_jit.move(valueTagGPR, resultPayloadGPR);
- m_jit.or32(TrustedImm32(1), resultPayloadGPR);
+ m_jit.or32(TrustedImm32(1), valueTagGPR, resultPayloadGPR);
typeCheck(
JSValueRegs(valueTagGPR, valuePayloadGPR), nodeUse, SpecCell | SpecOther,
m_jit.branch32(
@@ -1778,8 +1773,7 @@ void SpeculativeJIT::emitObjectOrOtherBranch(Edge nodeUse, BlockIndex taken, Blo
COMPILE_ASSERT((JSValue::UndefinedTag | 1) == JSValue::NullTag, UndefinedTag_OR_1_EQUALS_NullTag);
if (needsTypeCheck(nodeUse, SpecCell | SpecOther)) {
- m_jit.move(valueTagGPR, scratchGPR);
- m_jit.or32(TrustedImm32(1), scratchGPR);
+ m_jit.or32(TrustedImm32(1), valueTagGPR, scratchGPR);
typeCheck(
JSValueRegs(valueTagGPR, valuePayloadGPR), nodeUse, SpecCell | SpecOther,
m_jit.branch32(MacroAssembler::NotEqual, scratchGPR, TrustedImm32(JSValue::NullTag)));