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(parent: 33fa614) | patch
Branch folding may invalidate liveness.
authorJakob Stoklund Olesen <stoklund@2pi.dk>
Tue, 27 Mar 2012 17:06:09 +0000 (17:06 +0000)
committerJakob Stoklund Olesen <stoklund@2pi.dk>
Tue, 27 Mar 2012 17:06:09 +0000 (17:06 +0000)
commit80799fbe3c048cc78aba59c389e4b33e936bc190
treea97c9b62538033cad6396486c431ddbf94dff6f7tree | snapshot
parent33fa614b16db175d0687eb34aea3a080d0d237c2commit | diff
Branch folding may invalidate liveness.

Branch folding can use a register scavenger to update liveness
information when required. Don't do that if liveness information is
already invalid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153517 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/BranchFolding.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors