[Bug ipa/97335] [11 Regression] 525.x264_r fails with -Ofast -g -march=znver2 -flto=16 since r11-3641-gc34db4b6f8a5d803

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97335

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
With -O3 -g -flto=16 --param=lto-partitions=1, the first bad binary is with
-fdbg-cnt=ipa_mod_ref:1046.

It seems a misc tool fails with:

./ldecod_r -i BuckBunny.264 -o BuckBunny.yuv
Setting Default Parameters...
Parsing Configfile decoder.cfg

----------------------------- JM 17.1 (FRExt) -----------------------------
--------------------------------------------------------------------------
 Input H.264 bitstream                  : BuckBunny.264 
 Output decoded YUV                     : BuckBunny.yuv 
 Input reference file                   : test_rec.yuv 
--------------------------------------------------------------------------
POC must = frame# or field# for SNRs to be correct
--------------------------------------------------------------------------
  Frame          POC  Pic#   QP    SnrY     SnrU     SnrV   Y:U:V Time(ms)
--------------------------------------------------------------------------
 Input reference file                   : test_rec.yuv does not exist 
                                          SNR values are not available
00000(IDR)        0     0    28                             4:2:0       0
00002( P )        4     1    31                             4:2:0       0
00001( b )        2     2    31                             4:2:0       0
00003( I )        6     2    28                             4:2:0       0
00006( P )       12     4    28                             4:2:0       0
mb_qp_delta is out of range

PRE dump files:
https://drive.google.com/file/d/1GzqkYP4PRtXVkVbvGGJUukz8-9ay-uMy/view?usp=sharing