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path: root/lib/Target/PowerPC/PPCRegisterInfo.cpp
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Diffstat (limited to 'lib/Target/PowerPC/PPCRegisterInfo.cpp')
-rw-r--r--lib/Target/PowerPC/PPCRegisterInfo.cpp24
1 files changed, 7 insertions, 17 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 9745235525..df245cc655 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -71,7 +71,7 @@ PPCRegisterInfo::PPCRegisterInfo(const PPCSubtarget &ST,
: PPCGenRegisterInfo(ST.isPPC64() ? PPC::LR8 : PPC::LR,
ST.isPPC64() ? 0 : 1,
ST.isPPC64() ? 0 : 1),
- Subtarget(ST), TII(tii), CRSpillFrameIdx(0) {
+ Subtarget(ST), TII(tii) {
ImmToIdxMap[PPC::LD] = PPC::LDX; ImmToIdxMap[PPC::STD] = PPC::STDX;
ImmToIdxMap[PPC::LBZ] = PPC::LBZX; ImmToIdxMap[PPC::STB] = PPC::STBX;
ImmToIdxMap[PPC::LHZ] = PPC::LHZX; ImmToIdxMap[PPC::LHA] = PPC::LHAX;
@@ -111,11 +111,6 @@ PPCRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
return Subtarget.isPPC64() ? CSR_Darwin64_SaveList :
CSR_Darwin32_SaveList;
- // For 32-bit SVR4, also initialize the frame index associated with
- // the CR spill slot.
- if (!Subtarget.isPPC64())
- CRSpillFrameIdx = 0;
-
return Subtarget.isPPC64() ? CSR_SVR464_SaveList : CSR_SVR432_SaveList;
}
@@ -450,19 +445,14 @@ PPCRegisterInfo::hasReservedSpillSlot(const MachineFunction &MF,
// For the nonvolatile condition registers (CR2, CR3, CR4) in an SVR4
// ABI, return true to prevent allocating an additional frame slot.
// For 64-bit, the CR save area is at SP+8; the value of FrameIdx = 0
- // is arbitrary and will be subsequently ignored. For 32-bit, we must
- // create exactly one stack slot and return its FrameIdx for all
- // nonvolatiles.
+ // is arbitrary and will be subsequently ignored. For 32-bit, we have
+ // previously created the stack slot if needed, so return its FrameIdx.
if (Subtarget.isSVR4ABI() && PPC::CR2 <= Reg && Reg <= PPC::CR4) {
- if (Subtarget.isPPC64()) {
+ if (Subtarget.isPPC64())
FrameIdx = 0;
- } else if (CRSpillFrameIdx) {
- FrameIdx = CRSpillFrameIdx;
- } else {
- MachineFrameInfo *MFI =
- (const_cast<MachineFunction &>(MF)).getFrameInfo();
- FrameIdx = MFI->CreateFixedObject((uint64_t)4, (int64_t)-4, true);
- CRSpillFrameIdx = FrameIdx;
+ else {
+ const PPCFunctionInfo *FI = MF.getInfo<PPCFunctionInfo>();
+ FrameIdx = FI->getCRSpillFrameIndex();
}
return true;
}