[Bug middle-end/98431] Gcc uses a lot of compile-time and memory

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98431

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |compile-time-hog,
                   |                            |memory-hog
                 CC|                            |vmakarov at gcc dot gnu.org
      Known to fail|                            |10.2.0, 7.5.0
     Ever confirmed|0                           |1
            Summary|Gcc crashes with            |Gcc uses a lot of
                   |segmentation fault          |compile-time and memory
          Component|c                           |middle-end
   Last reconfirmed|                            |2021-01-05
             Status|UNCONFIRMED                 |NEW

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
It compiles successfully for me with the FSF 7.3.0 release and -O0 -fPIC
-fdollars-in-identifiers - it does use a lot of memory though (~6GB).

Note that GCC 7 is no longer supported.

With GCC 10.2 I see

 out of ssa                         :  22.14 ( 24%)   1.07 ( 24%)  23.21 ( 24%)
     63 kB (  0%)
 LRA non-specific                   :  39.41 ( 43%)   0.00 (  0%)  39.41 ( 41%)
  19259 kB (  1%)
 TOTAL                              :  91.38          4.53         95.92       
1534299 kB
91.38user 4.73system 1:36.12elapsed 99%CPU (0avgtext+0avgdata
5768460maxresident)k
0inputs+76184outputs (0major+1393158minor)pagefaults 0swaps

Confirmed as memory/compile-time hog.