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| author | Jean-Luc Duprat <jduprat@apple.com> | 2013-05-06 16:55:50 +0000 |
|---|---|---|
| committer | Jean-Luc Duprat <jduprat@apple.com> | 2013-05-06 16:55:50 +0000 |
| commit | c5cf6e536598a3b1e30fce616b771d66a071a54c (patch) | |
| tree | 52f21b614d462af5f1d237be0892b711558ea1e1 /include/llvm/Support/Regex.h | |
| parent | 4c8850cd1c97eff659169967bb70b6e22c3ace27 (diff) | |
Provide InstCombines for the following 3 cases:
A * (1 - (uitofp i1 C)) -> select C, 0, A
B * (uitofp i1 C) -> select C, B, 0
select C, 0, A + select C, B, 0 -> select C, B, A
These come up in code that has been hand-optimized from a select to a linear blend,
on platforms where that may have mattered. We want to undo such changes
with the following transform:
A*(1 - uitofp i1 C) + B*(uitofp i1 C) -> select C, A, B
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181216 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Support/Regex.h')
0 files changed, 0 insertions, 0 deletions