// ICCompare_Int32
bool
ICCompare_Int32::Compiler::generateStubCode(MacroAssembler &masm)
{
// Guard that R0 is an integer and R1 is an integer.
Label failure;
// by wangqing, 2013-11-22
masm.movl(ImmTag(JSVAL_TAG_INT32), cmpTempRegister);
masm.bne(R0.typeReg(), cmpTempRegister, &failure);
masm.nop();
masm.movl(ImmTag(JSVAL_TAG_INT32), cmpTempRegister);
masm.bne(R1.typeReg(), cmpTempRegister, &failure);
masm.nop();
// Compare payload regs of R0 and R1.
Assembler::Condition cond = JSOpToCondition(op, /* signed = */true);
masm.cmpl(R0.payloadReg(), R1.payloadReg());
masm.setCC(cond, R0.payloadReg());
masm.movzxbl(R0.payloadReg(), R0.payloadReg());
// Box the result and return
masm.tagValue(JSVAL_TYPE_BOOLEAN, R0.payloadReg(), R0);
EmitReturnFromIC(masm);
// Failure case - jump to next stub
masm.bindBranch(&failure);
EmitStubGuardFailure(masm);
return true;
}
bool
ICCompare_Int32::Compiler::generateStubCode(MacroAssembler &masm)
{
// Guard that R0 is an integer and R1 is an integer.
Label failure;
Label conditionTrue;
masm.branchTestInt32(Assembler::NotEqual, R0, &failure);
masm.branchTestInt32(Assembler::NotEqual, R1, &failure);
// Compare payload regs of R0 and R1.
Assembler::Condition cond = JSOpToCondition(op, /* signed = */true);
masm.ma_cmp_set(R0.payloadReg(), R0.payloadReg(), R1.payloadReg(), cond);
masm.tagValue(JSVAL_TYPE_BOOLEAN, R0.payloadReg(), R0);
EmitReturnFromIC(masm);
// Failure case - jump to next stub
masm.bind(&failure);
EmitStubGuardFailure(masm);
return true;
}
bool
ICCompare_Int32::Compiler::generateStubCode(MacroAssembler &masm)
{
// Guard that R0 is an integer and R1 is an integer.
Label failure;
masm.branchTestInt32(Assembler::NotEqual, R0, &failure);
masm.branchTestInt32(Assembler::NotEqual, R1, &failure);
// Directly compare the int32 payload of R0 and R1.
Assembler::Condition cond = JSOpToCondition(op, /* signed = */true);
masm.mov(ImmWord(0), ScratchReg);
masm.cmpl(R0.valueReg(), R1.valueReg());
masm.setCC(cond, ScratchReg);
// Box the result and return
masm.boxValue(JSVAL_TYPE_BOOLEAN, ScratchReg, R0.valueReg());
EmitReturnFromIC(masm);
// Failure case - jump to next stub
masm.bind(&failure);
EmitStubGuardFailure(masm);
return true;
}
