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[mips] Lower EH_RETURN.

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Patch by Sasa Stankovic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173862 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2013-01-30 00:26:49 +00:00
parent 1d13b1b029
commit 544cc21cf4
10 changed files with 184 additions and 2 deletions
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16
lib/Target/Mips/MipsMachineFunction.cpp
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@ -56,4 +56,20 @@ unsigned MipsFunctionInfo::getMips16SPAliasReg() {
return Mips16SPAliasReg = MF.getRegInfo().createVirtualRegister(RC);
}
void MipsFunctionInfo::createEhDataRegsFI() {
for (int I = 0; I < 4; ++I) {
const MipsSubtarget &ST = MF.getTarget().getSubtarget<MipsSubtarget>();
const TargetRegisterClass *RC = ST.isABI_N64() ?
&Mips::CPU64RegsRegClass : &Mips::CPURegsRegClass;
EhDataRegFI[I] = MF.getFrameInfo()->CreateStackObject(RC->getSize(),
RC->getAlignment(), false);
}
}
bool MipsFunctionInfo::isEhDataRegFI(int FI) const {
return CallsEhReturn && (FI == EhDataRegFI[0] || FI == EhDataRegFI[1]
|| FI == EhDataRegFI[2] || FI == EhDataRegFI[3]);
}
void MipsFunctionInfo::anchor() { }