Don't hard code the offset of the saved R31 in functions with frame pointers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15990 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index c881c82..b3a9da0 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -278,12 +278,13 @@
// Get the number of bytes allocated from the FrameInfo...
unsigned NumBytes = MFI->getStackSize();
+ unsigned GPRSize = getSpillSize(PPC::R31);
if (NumBytes != 0) {
if (hasFP(MF)) {
MI = BuildMI(PPC::OR, 2, PPC::R1).addReg(PPC::R31).addReg(PPC::R31);
MBB.insert(MBBI, MI);
- MI = BuildMI(PPC::LWZ, 2, PPC::R31).addSImm(4).addReg(PPC::R31);
+ MI = BuildMI(PPC::LWZ, 2, PPC::R31).addSImm(GPRSize).addReg(PPC::R31);
MBB.insert(MBBI, MI);
}
MI = BuildMI(PPC::LWZ, 2, PPC::R1).addSImm(0).addReg(PPC::R1);