On Tue, Sep 23, 2014 at 7:57 PM, Joseph S. Myers <jos...@codesourcery.com> wrote:
>> Attached patch avoids triggering denormal exceptions when FP insns are >> used to check for non-zero denormal values. > > But I thought the point of the test was to verify that the compiler's > understanding of existence of subnormal values was consistent with the > processor. If the processor is in a mode supporting such values, the > exceptions should be masked. That is, the present test should pass > unconditionally, if it doesn't pass that indicates a bug (which might be > appropriate for XFAILing). Alpha needs special instruction mode to process denormals. Without this special mode the insn traps as soon as denormal value is processed. Uros.
