On Thu, Oct 15, 2015 at 3:18 PM, Richard Sandiford
wrote:
> builtins-20.c had:
>
> if (cos((y*=2, -fabs(tan(x/-y != cos((y*=2,tan(x/y
> link_error ();
>
> which is undefined behaviour. The test expected that y had the same
> value in x/y and x/-y, but gimplification actually impleme
builtins-20.c had:
if (cos((y*=2, -fabs(tan(x/-y != cos((y*=2,tan(x/y
link_error ();
which is undefined behaviour. The test expected that y had the same
value in x/y and x/-y, but gimplification actually implements the
"obvious" interpretation, multiplying y by 2, using it for one
