On Sat, 2015-05-23 at 00:04 +0300, Aaro Koskinen wrote: > Hi, > > On Fri, May 22, 2015 at 05:27:14PM +0100, James Cowgill wrote: > > Yep it's a hardware problem. The following assembly dies (raises SIGILL) > > at 'sqrt.s' on the Loongsons and works everywhere else: > > > > === > > .set mips2 > > .text > > .global main > > .type main, @function > > main: > > lui $t0, %hi(value) > > lwc1 $f0, %lo(value)($t0) > > nop > > sqrt.s $f0, $f0 > > jr $ra > > > > .data > > value: > > .float 1.1342362e-39 > > === > > Is this a standalone reproducer program for the problem? Because > I tried it on on my Loongson box and didn't get any SIGILL... It should be. I tried it on some 3A machines at work and it crashed there (and then some other machines which didn't crash). There's a 2F I can try on Tuesday. Does the original gfortran code crash for you? Thanks, James
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