On Thu, 22 Dec 2011, Richard Henderson wrote: > On 12/22/2011 07:46 AM, Richard Guenther wrote: > > Any way to test, in the testcase, whether the vector modes > > will have NaNs or not? > > v[0] != v[0] ?
Well, if MODE_HAS_NANS returns false we might fold 0.0/0.0 to 0.0, or the HW might simply not have NaNs (SPU?) and have 0.0 as the result. Thus, I want to query GCC capabilities (-ffinite-math-only) and HW capabilities (what we have in real_mode_format) from inside the testcase. Any idea? Otherwise I'll add dg-skips for the targets that fail the test. Richard.
