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| author | David Majnemer <david.majnemer@gmail.com> | 2016-01-21 18:55:54 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2016-01-21 18:55:54 +0000 |
| commit | 3af5bf30e33f8a7ca5929de0b2821190206f3999 (patch) | |
| tree | 930bcf8b47b069470c0e3be5ccc095a011428676 /lldb/packages/Python/lldbsuite/test/python_api/thread | |
| parent | 406808e344ab4f1c581979314b05285c37afe072 (diff) | |
| download | bcm5719-llvm-3af5bf30e33f8a7ca5929de0b2821190206f3999.tar.gz bcm5719-llvm-3af5bf30e33f8a7ca5929de0b2821190206f3999.zip | |
[InstCombine] Simplify (x >> y) <= x
This commit extends the patterns recognised by InstSimplify to also handle (x >> y) <= x in the same way as (x /u y) <= x.
The missing optimisation was found investigating why LLVM did not optimise away bound checks in a binary search: https://github.com/rust-lang/rust/pull/30917
Patch by Andrea Canciani!
Differential Revision: http://reviews.llvm.org/D16402
llvm-svn: 258422
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/thread')
0 files changed, 0 insertions, 0 deletions
