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| author | David Bolvansky <david.bolvansky@gmail.com> | 2018-07-30 16:50:00 +0000 |
|---|---|---|
| committer | David Bolvansky <david.bolvansky@gmail.com> | 2018-07-30 16:50:00 +0000 |
| commit | 2fa7fb14ea5d7009470079640381e23e88c61f1b (patch) | |
| tree | 24f9a4076bb5ca910a37c9d6c058f701e99235b8 /clang/lib/Basic/Module.cpp | |
| parent | 196149c943ffde9f2f3368fc47d5f843a9ab44a4 (diff) | |
| download | llvm-2fa7fb14ea5d7009470079640381e23e88c61f1b.zip llvm-2fa7fb14ea5d7009470079640381e23e88c61f1b.tar.gz llvm-2fa7fb14ea5d7009470079640381e23e88c61f1b.tar.bz2 | |
[DAGCombiner] Bug 31275- Extract a shift from a constant mul or udiv if a rotate can be formed
Summary:
Attempt to extract a shrl from a udiv or a shl from a mul if this allows a rotate to be formed. This targets cases where the input to a rotate pattern was a mul or udiv by a constant and InstCombine merged one of the shifts with the op.
Patch by: sameconrad (Sam Conrad)
Reviewers: RKSimon, craig.topper, spatel, lebedev.ri, javed.absar
Reviewed By: lebedev.ri
Subscribers: efriedma, kparzysz, llvm-commits
Differential Revision: https://reviews.llvm.org/D47681
llvm-svn: 338270
Diffstat (limited to 'clang/lib/Basic/Module.cpp')
0 files changed, 0 insertions, 0 deletions