Fix mismatched adjust down/up of SP in functions that contain variable
sized allocas. llvm-svn: 15806
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@ -1439,9 +1439,9 @@ void ISel::doCall(const ValueRecord &Ret, MachineInstr *CallMI,
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default: assert(0 && "Unknown class!");
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}
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// Just to be safe, we'll always reserve the full 32 bytes worth of
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// argument passing space in case any called code gets funky on us.
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if (NumBytes < 24 + 32) NumBytes = 24 + 32;
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// Just to be safe, we'll always reserve the full 24 bytes of linkage area
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// plus 32 bytes of argument space in case any called code gets funky on us.
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if (NumBytes < 56) NumBytes = 56;
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// Adjust the stack pointer for the new arguments...
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// These functions are automatically eliminated by the prolog/epilog pass
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@ -1586,7 +1586,7 @@ void ISel::doCall(const ValueRecord &Ret, MachineInstr *CallMI,
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GPR_idx++;
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}
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} else {
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BuildMI(BB, PPC::ADJCALLSTACKDOWN, 1).addImm(0);
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BuildMI(BB, PPC::ADJCALLSTACKDOWN, 1).addImm(NumBytes);
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}
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BuildMI(BB, PPC::IMPLICIT_DEF, 0, PPC::LR);
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