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[PowerPC] PR20280 - Slots for byval parameters are not immutable

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Found by inspection while looking at PR20280: code would mark slots
in the parameter save area where a byval parameter is passed as
"immutable".  This is not correct since code is allowed to modify
byval parameters in place in the parameter save area.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214517 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ulrich Weigand 2014-08-01 14:35:58 +00:00
parent 9aa0b5e11e
commit a45d218f15
1 changed files with 1 additions and 1 deletions
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2
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -2688,7 +2688,7 @@ PPCTargetLowering::LowerFormalArguments_64SVR4(
int FI;
if (HasParameterArea ||
ArgSize + ArgOffset > LinkageSize + Num_GPR_Regs * PtrByteSize)
FI = MFI->CreateFixedObject(ArgSize, ArgOffset, true);
FI = MFI->CreateFixedObject(ArgSize, ArgOffset, false);
else
FI = MFI->CreateStackObject(ArgSize, Align, false);
SDValue FIN = DAG.getFrameIndex(FI, PtrVT);