diff options
Diffstat (limited to 'Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp')
| -rw-r--r-- | Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp | 48 |
1 files changed, 30 insertions, 18 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp b/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp index 6c0093e41..00a83000a 100644 --- a/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp +++ b/Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp @@ -3858,12 +3858,16 @@ void SpeculativeJIT::compile(Node& node) } case CheckArgumentsNotCreated: { - speculationCheck( - Uncountable, JSValueRegs(), NoNode, - m_jit.branch32( - JITCompiler::NotEqual, - JITCompiler::tagFor(m_jit.argumentsRegisterFor(node.codeOrigin)), - TrustedImm32(JSValue::EmptyValueTag))); + if (!isEmptyPrediction( + m_state.variables().operand( + m_jit.graph().argumentsRegisterFor(node.codeOrigin)).m_type)) { + speculationCheck( + Uncountable, JSValueRegs(), NoNode, + m_jit.branch32( + JITCompiler::NotEqual, + JITCompiler::tagFor(m_jit.argumentsRegisterFor(node.codeOrigin)), + TrustedImm32(JSValue::EmptyValueTag))); + } noResult(m_compileIndex); break; } @@ -3872,12 +3876,16 @@ void SpeculativeJIT::compile(Node& node) GPRTemporary result(this); GPRReg resultGPR = result.gpr(); - speculationCheck( - ArgumentsEscaped, JSValueRegs(), NoNode, - m_jit.branch32( - JITCompiler::NotEqual, - JITCompiler::tagFor(m_jit.argumentsRegisterFor(node.codeOrigin)), - TrustedImm32(JSValue::EmptyValueTag))); + if (!isEmptyPrediction( + m_state.variables().operand( + m_jit.graph().argumentsRegisterFor(node.codeOrigin)).m_type)) { + speculationCheck( + ArgumentsEscaped, JSValueRegs(), NoNode, + m_jit.branch32( + JITCompiler::NotEqual, + JITCompiler::tagFor(m_jit.argumentsRegisterFor(node.codeOrigin)), + TrustedImm32(JSValue::EmptyValueTag))); + } ASSERT(!node.codeOrigin.inlineCallFrame); m_jit.load32(JITCompiler::payloadFor(RegisterFile::ArgumentCount), resultGPR); @@ -3929,12 +3937,16 @@ void SpeculativeJIT::compile(Node& node) GPRReg resultPayloadGPR = resultPayload.gpr(); GPRReg resultTagGPR = resultTag.gpr(); - speculationCheck( - ArgumentsEscaped, JSValueRegs(), NoNode, - m_jit.branch32( - JITCompiler::NotEqual, - JITCompiler::tagFor(m_jit.argumentsRegisterFor(node.codeOrigin)), - TrustedImm32(JSValue::EmptyValueTag))); + if (!isEmptyPrediction( + m_state.variables().operand( + m_jit.graph().argumentsRegisterFor(node.codeOrigin)).m_type)) { + speculationCheck( + ArgumentsEscaped, JSValueRegs(), NoNode, + m_jit.branch32( + JITCompiler::NotEqual, + JITCompiler::tagFor(m_jit.argumentsRegisterFor(node.codeOrigin)), + TrustedImm32(JSValue::EmptyValueTag))); + } m_jit.add32(TrustedImm32(1), indexGPR, resultPayloadGPR); |