On Mon, May 12, 2025 at 01:24:04PM +0530, Surya Kumari Jangala wrote: > Hi Mike, > Irrespective of whether -Ofast is used or not, should’nt we generate XSCMPUDP > instruction for ‘isgreater()’ operation? This is because XSCMPGTDP insn will > generate a trap if either operand is an SNaN or a QNaN. Whereas, XSCMPUDP > insn will generate a trap only if either operand is an SNaN. The issue with > the failing glibc tests is that an “Invalid operation” exception is being > thrown due to qNaNs.
But -Ofast says not to worry about Nans (signalling or otherwise). But if Segher desires, I remove the test for Ofast. -- Michael Meissner, IBM PO Box 98, Ayer, Massachusetts, USA, 01432 email: meiss...@linux.ibm.com
