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Re-add gross hack, it's still necessary. :(

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6012 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-05-06 21:44:54 +00:00
parent 82a4d207aa
commit dff780f046
1 changed files with 12 additions and 2 deletions
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14
lib/CodeGen/LiveVariables.cpp
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@ -165,7 +165,12 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
if (MO.isVirtualRegister() && !MO.getVRegValueOrNull()) {
unsigned RegIdx = MO.getReg()-MRegisterInfo::FirstVirtualRegister;
HandleVirtRegUse(getVarInfo(RegIdx), MBB, MI);
} else if (MO.isPhysicalRegister() && MO.getReg() != 0) {
} else if (MO.isPhysicalRegister() && MO.getReg() != 0
/// FIXME: This is a gross hack, due to us not being able to
/// say that some registers are defined on entry to the
/// function. 5 = ESP
&& MO.getReg() != 5
) {
HandlePhysRegUse(MO.getReg(), MI);
}
}
@ -188,7 +193,12 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
VRInfo.DefBlock = MBB; // Created here...
VRInfo.DefInst = MI;
VRInfo.Kills.push_back(std::make_pair(MBB, MI)); // Defaults to dead
} else if (MO.isPhysicalRegister() && MO.getReg() != 0) {
} else if (MO.isPhysicalRegister() && MO.getReg() != 0
/// FIXME: This is a gross hack, due to us not being able to
/// say that some registers are defined on entry to the
/// function. 5 = ESP
&& MO.getReg() != 5
) {
HandlePhysRegDef(MO.getReg(), MI);
}
}