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First, we should not cheat: fsel-based lowering of select_cc is a finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes this clear, as does a note in our own README). This also adds fsel-based lowering of EQ and NE condition codes. As it turned out, fsel generation was covered by a grand total of zero regression test cases. I've added some test cases to cover the existing behavior (which is now finite-math only), as well as the new EQ cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179000 91177308-0d34-0410-b5e6-96231b3b80d8 |
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