diff options
| author | Roman Lebedev <lebedev.ri@gmail.com> | 2019-10-04 22:16:22 +0000 |
|---|---|---|
| committer | Roman Lebedev <lebedev.ri@gmail.com> | 2019-10-04 22:16:22 +0000 |
| commit | fb5af8b9b93cb270fda7832e24cab9cb62dec16f (patch) | |
| tree | a339bff1c5a427fddaf3ac2f873607087f7e61a6 /lldb/packages/Python/lldbsuite/test | |
| parent | f304d4d185d24eec9f0ca84d566da0d51b2344ef (diff) | |
| download | bcm5719-llvm-fb5af8b9b93cb270fda7832e24cab9cb62dec16f.tar.gz bcm5719-llvm-fb5af8b9b93cb270fda7832e24cab9cb62dec16f.zip | |
[InstCombine] Fold 'icmp eq/ne (?trunc (lshr/ashr %x, bitwidth(x)-1)), 0' -> 'icmp sge/slt %x, 0'
We do indeed already get it right in some cases, but only transitively,
with one-use restrictions. Since we only need to produce a single
comparison, it makes sense to match the pattern directly:
https://rise4fun.com/Alive/kPg
llvm-svn: 373802
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test')
0 files changed, 0 insertions, 0 deletions
