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| author | Hal Finkel <hfinkel@anl.gov> | 2013-04-07 22:11:09 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2013-04-07 22:11:09 +0000 |
| commit | 59889f7f496f549965764820a0150c4068c02f5b (patch) | |
| tree | c102ec3be805ebafe070e2691aa3eab133a5c53d /lib/CodeGen/MachineCSE.cpp | |
| parent | cd3d60c4505efad809a3d8b4ba9aed315568f8d8 (diff) | |
Cleanup and improve PPC fsel generation
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
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
0 files changed, 0 insertions, 0 deletions