I didn’t know ‘x’ can also mean 256-bit ‘ymm’ registers. Is this legal only if the target supports avx?
Thanks. On Sep 18, 2014, at 1:20 PM, Eric Christopher <[email protected]> wrote: > You could probably create a 512-byte data structure to get it to fail > as well. (Though the explicit no-error is nice too, thanks) > > -eric > > On Thu, Sep 18, 2014 at 1:04 PM, Hans Wennborg <[email protected]> wrote: >> On Thu, Sep 18, 2014 at 11:34 AM, Eric Christopher <[email protected]> >> wrote: >>>> >>> >>> >>>> + case 'x': >>>> + case 'f': >>>> + case 't': >>>> + case 'u': >>>> + return Size <= 128; >>> >>> >>> Hans pointed out that you'll have problems here with _m256 and wanting an >>> avx register. There is, afaict, no separate constraint for "gimme an avx >>> register" that's different from SSE registers. There is the 'v' constraint >>> which works for avx 512 (evex encoded) registers. >> >> How about the attached patch? >> >> - Hans _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
