diff options
| author | David Green <david.green@arm.com> | 2021-03-25 16:44:15 +0000 |
|---|---|---|
| committer | David Green <david.green@arm.com> | 2021-03-25 16:44:15 +0000 |
| commit | d97189600e26553fa4fcdc73bd66b22c0ea420dd (patch) | |
| tree | 63fabd1b3d294b8fd4f95f1a8877802ea44c66e0 /llvm/lib/CodeGen/MachineLoopUtils.cpp | |
| parent | c40cea6f083a8a67ea950e058e16d37bb04e8c4b (diff) | |
| download | llvm-d97189600e26553fa4fcdc73bd66b22c0ea420dd.zip llvm-d97189600e26553fa4fcdc73bd66b22c0ea420dd.tar.gz llvm-d97189600e26553fa4fcdc73bd66b22c0ea420dd.tar.bz2 | |
[ARM] Revert WhileLoopStartLR to DoLoopStart
If a WhileLoopStartLR is reverted due to calls in the preheader, we may
still be able to instead create a DoLoopStart, preserving the low
overhead loop. This adds code for that, only reverting the
WhileLoopStartR to a Br/Cmp, leaving the rest of the low overhead loop
in place.
Differential Revision: https://reviews.llvm.org/D98413
Diffstat (limited to 'llvm/lib/CodeGen/MachineLoopUtils.cpp')
0 files changed, 0 insertions, 0 deletions