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On Sat, May 18, 2013 at 5:18 PM, Nadav Rotem <nrotem at apple.com> wrote: > Does fast-math imply no-math-errno ? > Yes, in both GCC and Clang. Clang does have some annoying logic bugs surrounding this flag though. For example, setting -fno-fast-math would imply no-math-errno, overriding the Linux default. Quite weird. I've cleaned this up some and added more clear tests in

Does fast-math imply no-math-errno ? Thanks, Nadav On May 17, 2013, at 15:36, Chris Lattner <clattner at apple.com> wrote: > > On May 17, 2013, at 3:33 PM, "Gurd, Preston" <preston.gurd at intel.com> wrote: > >> Using the following example program >> >> #include <math.h> >> >> double f(double d){ >> return sqrt(d);

...-fno-fast-math would imply no-math-errno, overriding the Linux default. Quite weird. I've cleaned this up some and added more clear tests in r182203. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130521/cb97d65a/attachment.html>