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2019 Apr 11
2
Question regarding X86::getCondFromBranch()
Hi,
I notice that the following recent addition
X86::CondCode X86::getCondFromBranch(const MachineInstr &MI) {
switch (MI.getOpcode()) {
default: return X86::COND_INVALID;
case X86::JCC_1:
return static_cast<X86::CondCode>(
MI.getOperand(MI.getDesc().getNumOperands() - 1).getImm());
}
}
returns an invalid condition for JCC_2 and JCC_4 conditional opcodes.
What is the suggested way to figure out the condition code for JCC_2 and JCC_4?
Should...