[Bug target/104239] New: [12 Regression] immintrin.h or x86gprintrin.h headers can't be included

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104239

            Bug ID: 104239
           Summary: [12 Regression] immintrin.h or x86gprintrin.h headers
                    can't be included
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

Code like:
#if __has_include(<immintrin.h>)
#include <immintrin.h>
#endif
regressed in GCC 12 on powerpc*,
# error "Never use <bmiintrin.h> directly; include <x86intrin.h> instead."