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| author | Eugene Leviant <eleviant@accesssoftek.com> | 2019-03-12 10:10:29 +0000 |
|---|---|---|
| committer | Eugene Leviant <eleviant@accesssoftek.com> | 2019-03-12 10:10:29 +0000 |
| commit | 1e249caaec399769f21efdc49f002e0e5cade5aa (patch) | |
| tree | dc33ab4c268a6895215ca878156d230a06c2f984 /llvm/lib/CodeGen | |
| parent | 9f92b3d081228be2a4133bbf8b850f9aa88470cf (diff) | |
| download | bcm5719-llvm-1e249caaec399769f21efdc49f002e0e5cade5aa.tar.gz bcm5719-llvm-1e249caaec399769f21efdc49f002e0e5cade5aa.zip | |
[CGP] Fix UB when GEP is bound to trivial PHINode
Differential revision: https://reviews.llvm.org/D59140
llvm-svn: 355904
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/CodeGenPrepare.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp index af1b65253f8..1d61d326372 100644 --- a/llvm/lib/CodeGen/CodeGenPrepare.cpp +++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp @@ -6849,6 +6849,7 @@ bool CodeGenPrepare::optimizeInst(Instruction *I, DominatorTree &DT, // to introduce PHI nodes too late to be cleaned up. If we detect such a // trivial PHI, go ahead and zap it here. if (Value *V = SimplifyInstruction(P, {*DL, TLInfo})) { + LargeOffsetGEPMap.erase(P); P->replaceAllUsesWith(V); P->eraseFromParent(); ++NumPHIsElim; |
