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Re: [PATCH] S390: Do not set FE_INEXACT with feraiseexcept (FE_OWERFLOW|FE_UNDERFLOW).
On Mon, 22 Aug 2016, Stefan Liebler wrote:
> For feraiseexcept I think if the z196-round-instruction is available with used
> toolchain then it should be used to avoid FE_INEXACT. Then it is the same
> behaviour as on intel.
> If it is not available feraiseexcept will use the add/div instructions as
> before with the FE_INEXACT flag/exception. And the additional _FPU_GETCW/SETCW
> usages are avoided.
>
> What's your suggestion for feraiseexcept?
I don't have a suggestion; I was simply observing that extra steps for
this case (such as the x86 code does) are not actually needed to conform
to the standard.
--
Joseph S. Myers
joseph@codesourcery.com