Roman Lebedev 46a4ee3296 [NFC][InstCombine] Tests for (x << y) >> y -> x & (-1 >> y) fold.
We already do it for splat constants, but not just values.
Also, undef cases are mostly non-functional.

https://bugs.llvm.org/show_bug.cgi?id=37603
https://rise4fun.com/Alive/cplX

llvm-svn: 334346
2018-06-09 09:27:39 +00:00
2018-06-08 15:16:25 +00:00
2016-01-26 21:29:08 +00:00
2017-01-12 18:02:42 +00:00
2018-06-08 21:21:55 +00:00

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