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allow a virtual register to be associated with live-in values.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21927 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-05-13 07:08:07 +00:00
parent fe07581d78
commit 712ad0c36d
3 changed files with 22 additions and 15 deletions
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8
lib/CodeGen/LiveVariables.cpp
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@ -165,11 +165,11 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
VirtRegInfo.resize(64);
// Mark live-in registers as live-in.
for (MachineFunction::liveinout_iterator I = MF.livein_begin(),
for (MachineFunction::livein_iterator I = MF.livein_begin(),
E = MF.livein_end(); I != E; ++I) {
assert(MRegisterInfo::isPhysicalRegister(*I) &&
assert(MRegisterInfo::isPhysicalRegister(I->first) &&
"Cannot have a live-in virtual register!");
HandlePhysRegDef(*I, 0);
HandlePhysRegDef(I->first, 0);
}
// Calculate live variable information in depth first order on the CFG of the
@ -272,7 +272,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
// it as using all of the live-out values in the function.
if (!MBB->empty() && TII.isReturn(MBB->back().getOpcode())) {
MachineInstr *Ret = &MBB->back();
for (MachineFunction::liveinout_iterator I = MF.liveout_begin(),
for (MachineFunction::liveout_iterator I = MF.liveout_begin(),
E = MF.liveout_end(); I != E; ++I) {
assert(MRegisterInfo::isPhysicalRegister(*I) &&
"Cannot have a live-in virtual register!");