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Re: [PATCH] Use -frounding-math for math testsuite
On Wed, 2 May 2012, Richard Guenther wrote:
> There is also -fsignalling-nans which is off by default, too. Not sure
> if that makes a difference though, but GCC for example folds x + 0.0 to
> x with the default setting.
I don't see it doing that folding, but if it did it would be a bug, since
-fsigned-zeros is the default and -0.0 + 0.0 is +0.0 except in
round-downwards mode.
--
Joseph S. Myers
joseph@codesourcery.com