https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82094
Vinay Vasista <vasistavinay at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Vinay Vasista <vasistavinay at gmail dot com> ---
Thanks, Martin! That solves my problem.
It would have been more helpful if gcc gave me a possible cause for the
failure, similar to what clang did. Because (arguably) nowhere was I able to
figure out there is this "avx512vbmi" target feature required by the particular
instruction I used.
[
Just noting down the following point. I had also not added -O3 flag, which
resulted in a few more errors:
/tmp/ccpGIXuF.s: Assembler messages:
/tmp/ccpGIXuF.s:17: Error: no such instruction: `vmovdqa64 -112(%rbp),%zmm0'
/tmp/ccpGIXuF.s:18: Error: no such instruction: `vmovdqa64 %zmm0,-304(%rbp)'
/tmp/ccpGIXuF.s:19: Error: no such instruction: `vmovdqa64 -176(%rbp),%zmm0'
/tmp/ccpGIXuF.s:20: Error: no such instruction: `vmovdqa64 %zmm0,-368(%rbp)'
/tmp/ccpGIXuF.s:21: Error: no such instruction: `vmovdqa64 -432(%rbp),%zmm0'
/tmp/ccpGIXuF.s:22: Error: no such instruction: `vmovdqa64 %zmm0,%zmm2'
/tmp/ccpGIXuF.s:23: Error: no such instruction: `vmovdqa64 -304(%rbp),%zmm0'
/tmp/ccpGIXuF.s:24: Error: no such instruction: `vmovdqa64 -368(%rbp),%zmm1'
/tmp/ccpGIXuF.s:26: Error: no such instruction: `kmovq %rax,%k1'
/tmp/ccpGIXuF.s:27: Error: no such instruction: `vpermb %zmm1,%zmm0,%zmm2{%k1}'
/tmp/ccpGIXuF.s:28: Error: no such instruction: `vmovdqa64 %zmm2,%zmm0'
/tmp/ccpGIXuF.s:29: Error: no such instruction: `vmovdqa64 %zmm0,-240(%rbp)'
After adding -O3 flag, the code got compiled without any error.
]
Thanks again!
~ Vinay
