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| author | Chris Lattner <sabre@nondot.org> | 2011-01-11 08:19:16 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-01-11 08:19:16 +0000 |
| commit | 3077ca97bdd4de7e8878e2f8308b6f615b60a470 (patch) | |
| tree | e7ab8b7f18b93e683a7d7baa513e2bb16323115b /lib/Transforms/Scalar/GVN.cpp | |
| parent | b6810991a9648a40fe05162d744f42c3c178dba7 (diff) | |
| download | llvm-3077ca97bdd4de7e8878e2f8308b6f615b60a470.tar.gz llvm-3077ca97bdd4de7e8878e2f8308b6f615b60a470.tar.bz2 llvm-3077ca97bdd4de7e8878e2f8308b6f615b60a470.tar.xz | |
update memdep when an instruction is deleted. This code isn't
actually reached in the testcase in PR8954, but it's safe and good
practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123224 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/GVN.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index a4bd7c1eb4..db6ed3977d 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -1383,8 +1383,11 @@ bool GVN::processNonLocalLoad(LoadInst *LI, } if (!CanDoPRE) { - while (!NewInsts.empty()) - NewInsts.pop_back_val()->eraseFromParent(); + while (!NewInsts.empty()) { + Instruction *I = NewInsts.pop_back_val(); + if (MD) MD->removeInstruction(I); + I->eraseFromParent(); + } return false; } |