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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 | 35190fd544eaee770b191618bd86af1ef7401758 (patch) | |
| tree | 3c6d40842c57c1ed5309750a1c82a8dd107f107f /lib/CodeGen/ShadowStackCollector.cpp | |
| parent | 8158082b53401707d47ecdb844129ebc146962a5 (diff) | |
| download | external_llvm-35190fd544eaee770b191618bd86af1ef7401758.zip external_llvm-35190fd544eaee770b191618bd86af1ef7401758.tar.gz external_llvm-35190fd544eaee770b191618bd86af1ef7401758.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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47931 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/ShadowStackCollector.cpp')
0 files changed, 0 insertions, 0 deletions