[Bug rtl-optimization/92264] [10 Regression] Compile time hog in 521.wrf_r with -Ofast -march=znver2 -g since r276318

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92264

--- Comment #13 from Martin Liška <marxin at gcc dot gnu.org> ---
So for the problematic wrf file we get:

$ gfortran module_configure.fppized.f90 -c -march=znver2 -std=legacy
-fconvert=big-endian -fno-openmp -Ofast -march=znver2 -g
...
$ wc -l /tmp/fbt 
26273112 /tmp/fbt
$ sort /tmp/fbt | uniq -c | sort -n | tac | head -n10
24666359 64 module_configure.fppized.f90 initial_config 2001 0
 482996 64 module_configure.fppized.f90 initial_config 757 0
 336377 64 module_configure.fppized.f90 initial_config 620 0
 321717 64 module_configure.fppized.f90 initial_config 607 0
 288735 64 module_configure.fppized.f90 initial_config 571 0
 101785 64 module_configure.fppized.f90 initial_config 317 0
  23376 64 module_configure.fppized.f90 initial_config 127 0
  22014 64 module_configure.fppized.f90 initial_config 120 0
  18135 64 module_configure.fppized.f90 initial_config 107 0
     41 64 module_configure.fppized.f90 initial_config 115 0