[Bug tree-optimization/68356] FAIL: gcc.dg/torture/pr68264.c -O* execution test on x86_64-apple-darwin1(0|4)

[dave.anglin at bell dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68356

--- Comment #9 from dave.anglin at bell dot net ---
On 2015-12-29, at 5:05 PM, dominiq at lps dot ens.fr wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68356
> 
> --- Comment #8 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
>> You might want to double check that it's not a bug in the HP-UX libm.
> 
> AFAIU Joseph (comment 2) the test should be skipped on platforms defaulting to
> -fno-math-errno as Darwin. Is it the case for HP-UX?


I believe that is the case for hpux.  No errors are defined for exp2.  Man page
says:

If the correct value after rounding would be smaller in magnitude than
MINDOUBLE, exp2() returns zero.

Dave
--
John David Anglin       dave.anglin@bell.net