[PATCH] D20341: [CUDA] Enable fusing FP ops for CUDA by default.
Steve Canon via cfe-commits
cfe-commits at lists.llvm.org
Tue May 17 16:29:05 PDT 2016
scanon added a comment.
`-ffp-contract=on` obeys the semantics of C's FP_CONTRACT pragma. In particular, it will not fuse:
float m = x*y;
float a = m + z;
Whereas you probably want that to fuse for your purposes. `-ffp-contract=fast` seems more in line with your needs.
More information about the cfe-commits