diff options
| author | Philip Reames <listmail@philipreames.com> | 2021-03-22 09:37:39 -0700 |
|---|---|---|
| committer | Philip Reames <listmail@philipreames.com> | 2021-03-22 09:38:43 -0700 |
| commit | d4648eeaa270fe787d8158596a0f58e0426ed498 (patch) | |
| tree | e5f04fb7b7ed773ee9e01dba137acdeb98523c8b /llvm/lib/ExecutionEngine/Orc/DebugObjectManagerPlugin.cpp | |
| parent | 688cdddafb0dfdeb5f3c5e1e22b88a0cdfc54c0c (diff) | |
| download | llvm-d4648eeaa270fe787d8158596a0f58e0426ed498.zip llvm-d4648eeaa270fe787d8158596a0f58e0426ed498.tar.gz llvm-d4648eeaa270fe787d8158596a0f58e0426ed498.tar.bz2 | |
[SCEV] Use trip count information to improve shift recurrence ranges
This patch exploits the knowledge that we may be running many fewer than bitwidth iterations of the loop, and may be able to disallow the overflow case. This patch specifically implements only the shl case, but this can be generalized to ashr and lshr without difficulty.
Differential Revision: https://reviews.llvm.org/D98222
Diffstat (limited to 'llvm/lib/ExecutionEngine/Orc/DebugObjectManagerPlugin.cpp')
0 files changed, 0 insertions, 0 deletions