[InstCombine] limit icmp transform to ConstantInt (PR28011)
In r271810 ( http://reviews.llvm.org/rL271810 ), I loosened the check
above this to work for any Constant rather than ConstantInt. AFAICT,
that part makes sense if we can determine that the shrunken/extended
constant remained equal. But it doesn't make sense for this later
transform where we assume that the constant DID change.
This could assert for a ConstantExpr:
https://llvm.org/bugs/show_bug.cgi?id=28011
And it could be wrong for a vector as shown in the added regression test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271908 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed