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Initialize {Min|Max}CSFrameIndex properly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32299 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-12-07 02:25:34 +00:00
parent e81561909d
commit 7d3223eef2
1 changed files with 4 additions and 2 deletions
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6
lib/CodeGen/PrologEpilogInserter.cpp
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@ -115,6 +115,10 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
int FrameSetupOpcode = RegInfo->getCallFrameSetupOpcode();
int FrameDestroyOpcode = RegInfo->getCallFrameDestroyOpcode();
// These are used to keep track the callee-save area. Initialize them.
MinCSFrameIndex = INT_MAX;
MaxCSFrameIndex = 0;
// Early exit for targets which have no callee saved registers and no call
// frame setup/destroy pseudo instructions.
if ((CSRegs == 0 || CSRegs[0] == 0) &&
@ -174,8 +178,6 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
// Now that we know which registers need to be saved and restored, allocate
// stack slots for them.
MinCSFrameIndex = INT_MAX;
MaxCSFrameIndex = 0;
for (unsigned i = 0, e = CSI.size(); i != e; ++i) {
unsigned Reg = CSI[i].getReg();
const TargetRegisterClass *RC = CSI[i].getRegClass();