diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2016-08-17 19:33:52 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2016-08-17 19:33:52 +0000 |
| commit | a7fe922b98bb45be7dce7c1cfe668ec27eeddc74 (patch) | |
| tree | e9648f5bddc775b842e53141d7c9748482f7115a /lib/Transforms/Scalar/LICM.cpp | |
| parent | c3aee98e721333f265a88d6bf348e6e468f027d4 (diff) | |
Notes
Diffstat (limited to 'lib/Transforms/Scalar/LICM.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LICM.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp index 2c0a70e44f57..cdd17fc516a8 100644 --- a/lib/Transforms/Scalar/LICM.cpp +++ b/lib/Transforms/Scalar/LICM.cpp @@ -377,9 +377,11 @@ bool llvm::hoistRegion(DomTreeNode *N, AliasAnalysis *AA, LoopInfo *LI, &I, I.getModule()->getDataLayout(), TLI)) { DEBUG(dbgs() << "LICM folding inst: " << I << " --> " << *C << '\n'); CurAST->copyValue(&I, C); - CurAST->deleteValue(&I); I.replaceAllUsesWith(C); - I.eraseFromParent(); + if (isInstructionTriviallyDead(&I, TLI)) { + CurAST->deleteValue(&I); + I.eraseFromParent(); + } continue; } |