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From: "tnfchris at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/112376] [14 Regression] gcc.dg/tree-ssa/ssa-dom-thread-7.c missed threading in aarch64 case Date: Thu, 15 Feb 2024 07:55:53 +0000 [thread overview] Message-ID: <bug-112376-4-VJ3tudBu8S@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-112376-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112376 Tamar Christina <tnfchris at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2024-02-15 Summary|[14 Regression] |[14 Regression] |gcc.dg/tree-ssa/ssa-dom-thr |gcc.dg/tree-ssa/ssa-dom-thr |ead-7.c was not adjusted |ead-7.c missed threading in |for aarch64 case |aarch64 case Ever confirmed|0 |1 Keywords| |missed-optimization Component|testsuite |tree-optimization Status|UNCONFIRMED |NEW CC| |amacleod at redhat dot com, | |tnfchris at gcc dot gnu.org --- Comment #1 from Tamar Christina <tnfchris at gcc dot gnu.org> --- This is a jumpthreading regression caused by: commit g:0cfc9c953d0221ec3971a25e6509ebe1041f142e Author: Andrew MacLeod <amacleod@redhat.com> Date: Thu Aug 17 12:34:59 2023 -0400 Phi analyzer - Initialize with range instead of a tree. Rangers PHI analyzer currently only allows a single initializer to a group. This patch changes that to use an inialization range, which is cumulative of all integer constants, plus a single symbolic value. There is no other change to group functionality. This patch also changes the way PHI groups are printed so they show up in the listing as they are encountered, rather than as a list at the end. It was more difficult to see what was going on previously. We seem to miss one thread that we did previously in the testcase. The new code does look worse. Jumpthreading is outside my wheelhouse for now, so any Ideas Andrew?
next prev parent reply other threads:[~2024-02-15 7:55 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-11-04 6:24 [Bug testsuite/112376] New: [14 Regression] gcc.dg/tree-ssa/ssa-dom-thread-7.c was not adjusted for " pinskia at gcc dot gnu.org 2023-11-04 6:24 ` [Bug testsuite/112376] " pinskia at gcc dot gnu.org 2024-02-15 7:55 ` tnfchris at gcc dot gnu.org [this message] 2024-03-07 21:03 ` [Bug tree-optimization/112376] [14 Regression] gcc.dg/tree-ssa/ssa-dom-thread-7.c missed threading in " law at gcc dot gnu.org 2024-05-07 7:42 ` [Bug tree-optimization/112376] [14/15 " rguenth at gcc dot gnu.org
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