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* Revert "Temporarily Revert "Add basic loop fusion pass.""Eric Christopher2019-04-171-0/+25
| | | | | | | | The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
* Temporarily Revert "Add basic loop fusion pass."Eric Christopher2019-04-171-25/+0
| | | | | | | | As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546
* [InstCombine] Fix SimplifyLibCalls erasing an instruction while IC still had ↵Amara Emerson2018-10-111-0/+25
references to it. InstCombine keeps a worklist and assumes that optimizations don't eraseFromParent() the instruction, which SimplifyLibCalls violates. This change adds a new callback to SimplifyLibCalls to let clients specify their own hander for erasing actions. Differential Revision: https://reviews.llvm.org/D52729 llvm-svn: 344251
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