https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111734
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hubicka at gcc dot gnu.org, | |jamborm at gcc dot gnu.org, | |rguenth at gcc dot gnu.org Priority|P3 |P1 --- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- -fno-ipa-modref fixes it. Fails with -O3 -fno-inline -fno-toplevel-reorder -fno-tree-fre --- a-t.c.146t.pre 2023-10-17 15:07:52.544953598 +0200 +++ a-t.c.146t.pre.bad 2023-10-17 15:07:45.788953643 +0200 @@ -25,7 +25,6 @@ int _4; <bb 2> [local count: 1073741824]: - i = &e; g.constprop (&i); i.2_3 = i; _4 = *i.2_3; I think this is a duplicate of the modref / IPA-CP issue (failing to remember the PR number) which IIRC has a patch under review.