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[NFC][InstCombine] Tests for x s<= x & (-1 >> y) to x s<= (-1 >> y) fold.
authorRoman Lebedev <lebedev.ri@gmail.com>
Sat, 14 Jul 2018 20:08:21 +0000 (20:08 +0000)
committerRoman Lebedev <lebedev.ri@gmail.com>
Sat, 14 Jul 2018 20:08:21 +0000 (20:08 +0000)
commitf1a351cf3a36091428bd65e2ab6a7605c183cbbf
treea52fe707d76a21eb54061d92f57d72e93b525715tree | snapshot
parent859e14aeaabb3c32c0cd09cee89a40e228dd07c1commit | diff
[NFC][InstCombine] Tests for  x s<= x & (-1 >> y)  to  x s<= (-1 >> y)  fold.

https://bugs.llvm.org/show_bug.cgi?id=38123
https://rise4fun.com/Alive/I3O

This pattern is not commutative!
We must make sure not to fold the commuted version!

llvm-svn: 337106
llvm/test/Transforms/InstCombine/canonicalize-constant-low-bit-mask-and-icmp-sle-to-icmp-sle.ll [new file with mode: 0644] blob
Domain: System / Toolchain;