https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106680

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |linkw at gcc dot gnu.org

--- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> ---
The related insns requires TARGET_POWERPC64, they are still available on 32bit
if the option -O2 -mpowerpc64 comes after -m32.

I think it suffers the issue as its comments:

/* On some versions of dejagnu this test will fail when biarch testing
   with RUNTESTFLAGS="--target_board=unix'{-m64,-m32}'" due to -m32
   being added on the command line after the dg-options -mpowerpc64.
   common/config/rs6000/rs6000-common.c:rs6000_handle_option disables
   -mpowerpc64 for -m32.  */

Hi Mike,

Could you share which test box you used for testing? Or dejagnu version?

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