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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/103680] Jump threading and switch corrupts
 profile
Date: Fri, 30 Jun 2023 16:22:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103680

--- Comment #11 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
The following are passes affecting mismatches for tramp3d -O3 build:
107t cunrolli          |     85   +77=20=20
110t forwprop          |     87    +2=20=20
113t fre               |    151   +64=20
115t threadfull        |    474  +323=20
116t vrp               |    379   -95=20
127t ch                |   3106 +2729
130t thread            |   3166   +60
131t dom               |   3036  -130
159t cddce             |   3146  +109
195t fre               |   1232   +10
196t thread            |   1259   +27
197t dom               |   1249   -10
199t threadfull        |   1275   +26
200t vrp               |   1264   -11
211t cddce             |   1264   +14
264r cprop             |   1174   +13
275r loop2_unroll      |   1180    +8
312r pro_and_epilogue  |   1204   +21
315r jump2             |   1245   +41

So jump threading still produces mismatches, but I will need to look more if
these are really conflicting profiles or another updating bug.
Not sure what happens in ch.=