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| author | Sanjay Patel <spatel@rotateright.com> | 2022-04-26 13:59:32 -0400 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2022-04-26 14:16:11 -0400 |
| commit | c8ed784ee69a7dbdf4b33e85229457ffad309cf2 (patch) | |
| tree | 43b2054e00bbdf9eee90f2408700441e8805631b /lldb/source/Plugins/ScriptInterpreter/Python | |
| parent | 4c98e183774fac3dace6af4a1adf8e2acf22b932 (diff) | |
| download | llvm-c8ed784ee69a7dbdf4b33e85229457ffad309cf2.zip llvm-c8ed784ee69a7dbdf4b33e85229457ffad309cf2.tar.gz llvm-c8ed784ee69a7dbdf4b33e85229457ffad309cf2.tar.bz2 | |
[InstCombine] fold freeze of partial undef/poison vector constants
We can always replace the undef elements in a vector constant
with regular constants to get rid of the freeze:
https://alive2.llvm.org/ce/z/nfRb4F
The select diffs show that we might do better by adjusting the
logic for a frozen select condition. We may also want to refine
the vector constant replacement to consider forming a splat.
Differential Revision: https://reviews.llvm.org/D123962
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python')
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