[Bug target/121007] [15/16 Regression] compiler hangs when building ffpmeg with -mcpu=power9 on ppc64le

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121007

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2025-07-09
           Keywords|                            |needs-reduction, ra
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Changing address in insn 138 r466:DI&0xfffffffffffffff0 on equiv
sfp:DI-0x10&0xfffffffffffffff0
      Creating newreg=569, assigning class BASE_REGS to base r569
      Creating newreg=570, assigning class BASE_REGS to base r570
      Creating newreg=571, assigning class BASE_REGS to base r571



insn 138 is:
(insn 138 258 49 3 (set (reg:V16QI 236 [ _128 ])
        (mem:V16QI (and:DI (reg/f:DI 466)
                (const_int -16 [0xfffffffffffffff0])) [0 MEM <vector(16) signed
char> [(void *)_127]+0 S16 A128])) "libavcodec/ppc/h264dsp.c":650:67 1148
{vsx_movv16qi_64bit}
     (nil))

This is definitely sounding more and more like PR 93658.