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| author | Brendon Cahoon <bcahoon@codeaurora.org> | 2017-02-04 00:10:22 +0000 |
|---|---|---|
| committer | Brendon Cahoon <bcahoon@codeaurora.org> | 2017-02-04 00:10:22 +0000 |
| commit | 9809b10586b789170ceef7a3764fa18b94cc496e (patch) | |
| tree | 8bc38595a16acba4d01987e85231b866baede13d /llvm/lib | |
| parent | cd8ea02b4a4c8274ed82f3f2e939f1b9ac5dc6cc (diff) | |
| download | bcm5719-llvm-9809b10586b789170ceef7a3764fa18b94cc496e.tar.gz bcm5719-llvm-9809b10586b789170ceef7a3764fa18b94cc496e.zip | |
[RegisterCoalescer] Do not call getInstructionIndex with DBG_VALUE
An assert occurs when calling SlotIndexes::getInstructionIndex with
a DBG_VALUE instruction because the function expects an instruction
with a slot index. However, there is no slot index for a DBG_VALUE
instruction.
Differential Revision: https://reviews.llvm.org/D29048
llvm-svn: 294070
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/RegisterCoalescer.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegisterCoalescer.cpp b/llvm/lib/CodeGen/RegisterCoalescer.cpp index f4cc37d9ca0..136a949cb6f 100644 --- a/llvm/lib/CodeGen/RegisterCoalescer.cpp +++ b/llvm/lib/CodeGen/RegisterCoalescer.cpp @@ -1472,7 +1472,7 @@ void RegisterCoalescer::updateRegDefsUses(unsigned SrcReg, // If SrcReg wasn't read, it may still be the case that DstReg is live-in // because SrcReg is a sub-register. - if (DstInt && !Reads && SubIdx) + if (DstInt && !Reads && SubIdx && !UseMI->isDebugValue()) Reads = DstInt->liveAt(LIS->getInstructionIndex(*UseMI)); // Replace SrcReg with DstReg in all UseMI operands. |
