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| author | Hal Finkel <hfinkel@anl.gov> | 2012-02-24 17:53:59 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-02-24 17:53:59 +0000 |
| commit | f77c03a8599ca354393292bb6c918ea8dab6a21d (patch) | |
| tree | feae5597ebd2e14a4e1872723e6114fe05d9247c /lib/CodeGen/SelectionDAG/InstrEmitter.cpp | |
| parent | e170c76ccdcf9b0343d2d5a2805010ff77b8b56e (diff) | |
| download | llvm-f77c03a8599ca354393292bb6c918ea8dab6a21d.tar.gz llvm-f77c03a8599ca354393292bb6c918ea8dab6a21d.tar.bz2 llvm-f77c03a8599ca354393292bb6c918ea8dab6a21d.tar.xz | |
Don't crash when a glue node contains an internal CopyToReg
This is necessary to support the existing ppc lowering code for indirect calls.
Fixes PR12071.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151373 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/InstrEmitter.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/InstrEmitter.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp index 3f4f9e2625..1467d88778 100644 --- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp +++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp @@ -766,6 +766,9 @@ EmitMachineNode(SDNode *Node, bool IsClone, bool IsCloned, if (F->getOpcode() == ISD::CopyFromReg) { UsedRegs.push_back(cast<RegisterSDNode>(F->getOperand(1))->getReg()); continue; + } else if (F->getOpcode() == ISD::CopyToReg) { + // Skip CopyToReg nodes that are internal to the glue chain. + continue; } // Collect declared implicit uses. const MCInstrDesc &MCID = TII->get(F->getMachineOpcode()); |