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* Follow the PowerPC convention of leaving 24 bytes for linking on the stack.
* Also leave space for spilling integer registers (this should be calculated) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14554 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -195,7 +195,10 @@ void PowerPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
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// in the function immediately on entry to the current function. This
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// eliminates the need for add/sub brackets around call sites.
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//
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NumBytes += MFI->getMaxCallFrameSize();
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NumBytes += MFI->getMaxCallFrameSize() +
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24 /* Predefined PowerPC link area */ +
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12*4 /* Spilled int regs */ +
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0*8 /* Spilled fp regs */;
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// Round the size to a multiple of the alignment (don't forget the 4 byte
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// offset though).
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@ -217,7 +220,7 @@ void PowerPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
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// adjust stack pointer: r1 -= numbytes
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if (NumBytes) {
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MI = BuildMI(PPC32::STWU, 2, PPC32::R1).addImm(-80).addReg(PPC32::R1);
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MI = BuildMI(PPC32::STWU, 2, PPC32::R1).addImm(-NumBytes).addReg(PPC32::R1);
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MBB.insert(MBBI, MI);
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}
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}
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