[PATCH] D22083: Revert "[X86]: Improve Liveness checking for X86FixupBWInsts.cpp"
Matthias Braun via llvm-commits
llvm-commits at lists.llvm.org
Wed Jul 6 20:02:26 PDT 2016
MatzeB created this revision.
MatzeB added reviewers: kbsmith1, ab.
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This reverts commits r272797 and r272835.
I believe the improvements of these commits are merely workarounds for the
broken behaviour of the BranchFolder which I believe to have fixed in
http://reviews.llvm.org/D22027, so this should no longer be necessary.
The goal here is to make codegen independent of the presence of kill
flags which means we have to avoid LivePhysRegs::stepForward() calls
(among other things).
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