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Fix the last virtual register enumerations.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123102 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-01-08 23:11:11 +00:00
parent c7d67f90d3
commit b258135301
2 changed files with 8 additions and 7 deletions
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7
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
View File

@ -172,12 +172,13 @@ void PPCDAGToDAGISel::InsertVRSaveCode(MachineFunction &Fn) {
// In this case, there will be virtual registers of vector type created
// by the scheduler. Detect them now.
bool HasVectorVReg = false;
for (unsigned i = TargetRegisterInfo::FirstVirtualRegister,
e = RegInfo->getLastVirtReg()+1; i != e; ++i)
if (RegInfo->getRegClass(i) == &PPC::VRRCRegClass) {
for (unsigned i = 0, e = RegInfo->getNumVirtRegs(); i != e; ++i) {
unsigned Reg = TargetRegisterInfo::index2VirtReg(i);
if (RegInfo->getRegClass(Reg) == &PPC::VRRCRegClass) {
HasVectorVReg = true;
break;
}
}
if (!HasVectorVReg) return; // nothing to do.
// If we have a vector register, we want to emit code into the entry and exit

8
lib/Target/X86/X86RegisterInfo.cpp
View File

@ -814,13 +814,13 @@ namespace {
// Be over-conservative: scan over all vreg defs and find whether vector
// registers are used. If yes, there is a possibility that vector register
// will be spilled and thus require dynamic stack realignment.
for (unsigned RegNum = TargetRegisterInfo::FirstVirtualRegister;
RegNum < RI.getLastVirtReg(); ++RegNum)
if (RI.getRegClass(RegNum)->getAlignment() > StackAlignment) {
for (unsigned i = 0, e = RI.getNumVirtRegs(); i != e; ++i) {
unsigned Reg = TargetRegisterInfo::index2VirtReg(i);
if (RI.getRegClass(Reg)->getAlignment() > StackAlignment) {
FuncInfo->setReserveFP(true);
return true;
}
}
// Nothing to do
return false;
}