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| author | Abinav Puthan Purayil <abinav.puthanpurayil@amd.com> | 2021-11-23 22:43:18 +0530 |
|---|---|---|
| committer | Abinav Puthan Purayil <abinav.puthanpurayil@amd.com> | 2021-11-26 17:05:29 +0530 |
| commit | 4af45f10cccbaabc87758c4dc50b94bfd31fe848 (patch) | |
| tree | dcb0218a8d691abfbe6918888c55b1f40fe31c7b /lldb/source/Plugins/Process/scripted/ScriptedProcess.cpp | |
| parent | e20391fc5d6a72e712449142e803fb81b8a75153 (diff) | |
[GlobalISel] Fold or of shifts to funnel shift.
This change folds a basic funnel shift idiom:
- (or (shl x, amt), (lshr y, sub(bw, amt))) -> fshl(x, y, amt)
- (or (shl x, sub(bw, amt)), (lshr y, amt)) -> fshr(x, y, amt)
This also helps in folding to rotate shift if x and y are equal since we
already have a funnel shift to rotate combine.
Differential Revision: https://reviews.llvm.org/D114499
Diffstat (limited to 'lldb/source/Plugins/Process/scripted/ScriptedProcess.cpp')
0 files changed, 0 insertions, 0 deletions