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Subject: [Bug target/100758] __builtin_cpu_supports does not (always) detect
 "sse2"
Date: Wed, 26 May 2021 10:13:07 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100758

Erich Eckner <gcc at eckner dot net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |ASSIGNED
         Resolution|WONTFIX                     |---

--- Comment #7 from Erich Eckner <gcc at eckner dot net> ---
Yes, we could do

#include <cpuinfo.h>
unsigned int regs[4];
__get_cpuid(0, regs, regs+1, regs+2, regs+3);
if (regs[3] & bit_SSE2) {
  ...
}

The "cumbersome" in my first comment referred to doing all that by hand, wh=
ich
was the alternative, we saw so far.

Ok, I'll switch to that code and stop bothering you :-)

Thanks for looking into this!=