spatel added a subscriber: mibintc. spatel added a comment. In D72675#1917844 <https://reviews.llvm.org/D72675#1917844>, @wristow wrote:
> Revisiting this patch. I think that before fixing the `-ffp-contract=off` > problem I originally raised here, there are two questions that have come up > in this discussion that we should first resolve. Specifically: > > (1) Do we want to enable FMA transformations by default (at appropriate > optimization levels), like GCC does? That is, should FMA be done for targets > that support it with a command as simple as the following? > > clang -O2 -c test.c This has been discussed/tried a few times including very recently. I'm not sure where we stand currently, but here's some background: https://reviews.llvm.org/rL282259 D74436 <https://reviews.llvm.org/D74436> - cc @mibintc And (sorry for the various flavors of links to the dev-lists, but that's how it showed up in the search results): http://lists.llvm.org/pipermail/llvm-dev/2017-March/111129.html http://lists.llvm.org/pipermail/cfe-dev/2020-February/064645.html https://groups.google.com/forum/#!msg/llvm-dev/nBiCD5KvYW0/yfjrVzR7DAAJ https://groups.google.com/forum/#!topic/llvm-dev/Aev2jQYepKQ http://clang-developers.42468.n3.nabble.com/RFC-FP-contract-on-td4056277.html CHANGES SINCE LAST ACTION https://reviews.llvm.org/D72675/new/ https://reviews.llvm.org/D72675 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
