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From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/105010] [12/13 regression] GCC 12 after 20220227 fails
 to build on powerpc64-freebsd with Error: invalid mfcr mask
Date: Sat, 31 Dec 2022 18:24:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105010

--- Comment #18 from Segher Boessenkool <segher at gcc dot gnu.org> ---
We have (since ten years or sp already)

/* ISA 2.01 allowed FCFID to be done in 32-bit, previously it was 64-bit on=
ly.
   Enable 32-bit fcfid's on any of the switches for newer ISA machines.  */
#define TARGET_FCFID    (TARGET_POWERPC64                               \
                         || TARGET_PPC_GPOPT    /* 970/power4 */        \
                         || TARGET_POPCNTB      /* ISA 2.02 */          \
                         || TARGET_CMPB         /* ISA 2.05 */          \
                         || TARGET_POPCNTD)     /* ISA 2.06 */

I don't see how this can ever be enabled for 7450.

But!  We do not support 2.00 at all since quite a while (-mcpu=3Dpower4
does not mean 2.00, it means 2.02, i.e. POWER4+ actually), so this macro co=
uld
be a lot simpler.

Could you please show the generated .s file?  (Compile with -S instead of -=
c).=