Fix m_[Ord|Unord][FMin|FMax] matchers to correctly match ordering.

Previously, the matching was done incorrectly for the case where
operands for FCmpInst and SelectInst were in opposite order.

Patch by Andrei Elovikov.

Differential Revision: https://reviews.llvm.org/D33185

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305308 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed