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| author | Devang Patel <dpatel@apple.com> | 2010-10-01 19:00:44 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2010-10-01 19:00:44 +0000 |
| commit | d3fe5fa5d15516e34dc908649a4456905c65aa22 (patch) | |
| tree | ef29ea0df2fca214e8a7853411e937bc16b14d96 /llvm/lib/CodeGen | |
| parent | 7fb25418ed726c594ee800378538a96c69e84d4b (diff) | |
| download | bcm5719-llvm-d3fe5fa5d15516e34dc908649a4456905c65aa22.tar.gz bcm5719-llvm-d3fe5fa5d15516e34dc908649a4456905c65aa22.zip | |
Fix code gen crash reported in PR 8235. We still lose debug info for the unused argument here. This is a known limitation recorded debuginfo-tests/trunk/dbg-declare2.ll function 'f6' test case.
llvm-svn: 115323
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index fca9893db89..88a0f7b8705 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -3955,6 +3955,9 @@ SelectionDAGBuilder::EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable, const TargetRegisterInfo *TRI = DAG.getTarget().getRegisterInfo(); Reg = TRI->getFrameRegister(MF); Offset = FuncInfo.getByValArgumentFrameIndex(Arg); + // If byval argument ofset is not recorded then ignore this. + if (!Offset) + Reg = 0; } if (N.getNode() && N.getOpcode() == ISD::CopyFromReg) { |
