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| author | Sanjay Patel <spatel@rotateright.com> | 2018-12-16 15:05:48 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-12-16 15:05:48 +0000 |
| commit | 13ac2f15b0416bf85f53753657dafda6da4c353f (patch) | |
| tree | ac51cff70412f13b0f68350405a23c8e2a3e4207 /lldb/packages/Python/lldbsuite/test/python_api/frame/TestFrames.py | |
| parent | f24900b9348343f6c415bc164b0745e912e671a5 (diff) | |
| download | bcm5719-llvm-13ac2f15b0416bf85f53753657dafda6da4c353f.tar.gz bcm5719-llvm-13ac2f15b0416bf85f53753657dafda6da4c353f.zip | |
[x86] increment/decrement constant vector with min/max in vsetcc lowering (PR39859)
This is part of fixing PR39859:
https://bugs.llvm.org/show_bug.cgi?id=39859
We have a crippled vector ISA, so we have to invert a typical fold and create min/max here.
As discussed in the bug report, we can probably do better by using saturating subtract when
it's available, but we should have this improvement for the min/max patterns regardless.
Alive proofs:
https://rise4fun.com/Alive/zsf
https://rise4fun.com/Alive/Qrl
Differential Revision: https://reviews.llvm.org/D55515
llvm-svn: 349304
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/frame/TestFrames.py')
0 files changed, 0 insertions, 0 deletions
