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R600/SI: return undef instead of null for skipped arguments

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This is a candidate for the stable branch.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=64694

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182084 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Christian Konig 2013-05-17 09:46:48 +00:00
parent d6b4caf291
commit e919678208
1 changed files with 2 additions and 2 deletions

4
lib/Target/R600/SIISelLowering.cpp

@ -156,8 +156,9 @@ SDValue SITargetLowering::LowerFormalArguments(
for (unsigned i = 0, e = Ins.size(), ArgIdx = 0; i != e; ++i) {
const ISD::InputArg &Arg = Ins[i];
if (Skipped & (1 << i)) {
InVals.push_back(SDValue());
InVals.push_back(DAG.getUNDEF(Arg.VT));
continue;
}
@ -181,7 +182,6 @@ SDValue SITargetLowering::LowerFormalArguments(
Reg = MF.addLiveIn(Reg, RC);
SDValue Val = DAG.getCopyFromReg(Chain, DL, Reg, VT);
const ISD::InputArg &Arg = Ins[i];
if (Arg.VT.isVector()) {
// Build a vector from the registers