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| author | Dan Gohman <gohman@apple.com> | 2008-09-15 21:22:06 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-09-15 21:22:06 +0000 |
| commit | 68e7735a3890294c9538ed843169ac5da7db33ba (patch) | |
| tree | 75e9eb408efd9bf15661c65a391db13c3c8a9f6a /llvm/lib/CodeGen/MachineFunction.cpp | |
| parent | 4089ccb0faaf398470fa0b21d433c7023b8285ba (diff) | |
| download | llvm-68e7735a3890294c9538ed843169ac5da7db33ba.zip llvm-68e7735a3890294c9538ed843169ac5da7db33ba.tar.gz llvm-68e7735a3890294c9538ed843169ac5da7db33ba.tar.bz2 | |
Teach LSR to optimize away SMAX operations for tripcounts in common
cases. See the comment above OptimizeSMax for the full story, and
the testcase for an example. This cancels out a pessimization
commonly attributed to indvars, and will allow us to lift some of
the artificial throttles in indvars, rather than add new ones.
llvm-svn: 56230
Diffstat (limited to 'llvm/lib/CodeGen/MachineFunction.cpp')
0 files changed, 0 insertions, 0 deletions