[InstCombine] rename test file to better describe the fold; NFC
authorSanjay Patel <spatel@rotateright.com>
Fri, 14 Sep 2018 18:12:30 +0000 (18:12 +0000)
committerSanjay Patel <spatel@rotateright.com>
Fri, 14 Sep 2018 18:12:30 +0000 (18:12 +0000)
commit003f452522b2af546acb50ac450ef02c9d2c1c0a
tree51a7e277c79dfdc7dde92985d73385c908aaaf36
parent5a9462e42a1617e2c538770c573da32f6ee8bfd0
[InstCombine] rename test file to better describe the fold; NFC

The folds are not limited to zext, and the real goal is width
reduction of a math op. D52075 is proposing to extend this to
subtracts.

llvm-svn: 342254
llvm/test/Transforms/InstCombine/narrow-math.ll [moved from llvm/test/Transforms/InstCombine/sink-zext.ll with 100% similarity]