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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-03-25 22:52:29 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-03-25 22:52:29 +0000 |
| commit | 93b1f12ac1c315ce79d3986d3bfe405cf38f6fff (patch) | |
| tree | 5a65174ead35a476a3be13d7a58bae4e816c34e4 /llvm/lib/IR/DataLayout.cpp | |
| parent | 4d8ad55c782f7e4e43a72e62d55b48cca57acbf6 (diff) | |
| download | bcm5719-llvm-93b1f12ac1c315ce79d3986d3bfe405cf38f6fff.tar.gz bcm5719-llvm-93b1f12ac1c315ce79d3986d3bfe405cf38f6fff.zip | |
Disable some unsafe-fp-math DAG-combine transformation after legalization.
For instance, following transformation will be disabled:
x + x + x => 3.0f * x;
The problem of these transformations is that it introduces a FP constant, which
following Instruction-Selection pass cannot handle.
Reviewed by Nadav, thanks a lot!
rdar://13445387
llvm-svn: 177933
Diffstat (limited to 'llvm/lib/IR/DataLayout.cpp')
0 files changed, 0 insertions, 0 deletions
