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| author | Evan Cheng <evan.cheng@apple.com> | 2008-03-05 01:30:59 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-03-05 01:30:59 +0000 |
| commit | 0a62cb44ce11c4ab7119b1e7fa7d061ab94fd065 (patch) | |
| tree | 1ce2058815403aaaf09f9d7f60601a51493a7f15 /llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp | |
| parent | 855d024a83fac2913f993dc263923cad09cba411 (diff) | |
| download | llvm-0a62cb44ce11c4ab7119b1e7fa7d061ab94fd065.zip llvm-0a62cb44ce11c4ab7119b1e7fa7d061ab94fd065.tar.gz llvm-0a62cb44ce11c4ab7119b1e7fa7d061ab94fd065.tar.bz2 | |
Add a target lowering hook to control whether it's worthwhile to compress fp constant.
For x86, if sse2 is available, it's not a good idea since cvtss2sd is slower than a movsd load and it prevents load folding. On x87, it's important to shrink fp constant since fldt is very expensive.
llvm-svn: 47931
Diffstat (limited to 'llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp')
0 files changed, 0 insertions, 0 deletions