https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97717

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
           Keywords|                            |compile-time-hog

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
for me, -O1 takes a long time even:
 callgraph ipa passes               :   2.34 ( 26%)   0.49 ( 30%)   2.84 ( 26%)
  159M ( 37%)


-O2 is much worse:
 alias stmt walking                 :  23.12 ( 37%)   0.14 (  7%)  23.24 ( 36%)
  323M ( 17%)
 tree DSE                           :  11.34 ( 18%)   0.00 (  0%)  11.36 ( 18%)
   15k (  0%)
 tree slp vectorization             :  16.01 ( 26%)   0.30 ( 15%)  16.32 ( 25%)
 1117M ( 60%)

This is with --enable-checking=yes but with -fno-checking.


So there is at least a compile time hog here.

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