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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/102943] [12 Regression] Jump threader
 compile-time hog with 521.wrf_r
Date: Thu, 10 Mar 2022 13:49:51 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102943

--- Comment #40 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so after the two micro-optimizations we are now at

 tree VRP                           :  10.92 ( 17%)   0.03 (  5%)  10.94 ( =
17%)
   28M (  4%)
 backwards jump threading           :  11.16 ( 18%)   0.00 (  0%)  11.15 ( =
17%)
 1475k (  0%)
 TOTAL                              :  63.32          0.56         63.92=20=
=20=20=20=20=20=20
  744M

and

 alias stmt walking                 :   6.91 ( 18%)   0.04 (  9%)   7.02 ( =
18%)
  703k (  0%)
 tree VRP                           :   5.80 ( 15%)   0.03 (  7%)   5.83 ( =
15%)
   14M (  3%)
 backwards jump threading           :   6.18 ( 16%)   0.01 (  2%)   6.17 ( =
16%)
 1645k (  0%)
 TOTAL                              :  38.46          0.43         38.93=20=
=20=20=20=20=20=20
  438M=