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* [Bug tree-optimization/45120] New: [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution @ 2010-07-29 1:00 zsojka at seznam dot cz 2010-07-29 10:02 ` [Bug tree-optimization/45120] " rguenth at gcc dot gnu dot org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: zsojka at seznam dot cz @ 2010-07-29 1:00 UTC (permalink / raw) To: gcc-bugs With -fipa-pta in flags, pta-field-2.c FAILs: FAIL: gcc.c-torture/execute/pta-field-2.c execution, -O2 FAIL: gcc.c-torture/execute/pta-field-2.c execution, -O3 -fomit-frame-pointer FAIL: gcc.c-torture/execute/pta-field-2.c execution, -O3 -g FAIL: gcc.c-torture/execute/pta-field-2.c execution, -Os FAIL: gcc.c-torture/execute/pta-field-2.c execution, -O2 -flto Command line: $ gcc -O2 -fipa-pta pta-field-2.i $ ./a.out Aborted The code might be undefined, but even -fno-strict-aliasing doesn't help: $ gcc -O2 -fipa-pta pta-field-2.i -fno-strict-aliasing $ ./a.out Aborted Tested revisions: r162653 - fail r161659 - fail r161170 - OK -- Summary: [4.6 Regression] -fipa-pta causes FAIL: gcc.c- torture/execute/pta-field-2.c execution Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: zsojka at seznam dot cz GCC host triplet: x86_64-pc-linux-gnu GCC target triplet: x86_64-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45120 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/45120] [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution 2010-07-29 1:00 [Bug tree-optimization/45120] New: [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution zsojka at seznam dot cz @ 2010-07-29 10:02 ` rguenth at gcc dot gnu dot org 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-07-29 10:02 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from rguenth at gcc dot gnu dot org 2010-07-29 10:01 ------- Confirmed, mine. We generate wrong constraints for bar (int * * x) { int * D.2737; <bb 2>: D.2737_3 = MEM[(struct Foo *)x_1(D) + -8B].p; *D.2737_3 = 0; return; } Generating constraints for bar (bar) bar.arg0 = &NONLOCAL D.2737_3 = *bar.arg0 bar.use = bar.arg0 bar.clobber = D.2737_3 I have a patch. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot |dot org |org Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2010-07-29 10:01:51 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45120 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/45120] [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution 2010-07-29 1:00 [Bug tree-optimization/45120] New: [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution zsojka at seznam dot cz 2010-07-29 10:02 ` [Bug tree-optimization/45120] " rguenth at gcc dot gnu dot org @ 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-07-29 12:31 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from rguenth at gcc dot gnu dot org 2010-07-29 12:31 ------- Fixed. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED Target Milestone|--- |4.6.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45120 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/45120] [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution 2010-07-29 1:00 [Bug tree-optimization/45120] New: [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution zsojka at seznam dot cz 2010-07-29 10:02 ` [Bug tree-optimization/45120] " rguenth at gcc dot gnu dot org 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org @ 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu dot org @ 2010-07-29 12:31 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rguenth at gcc dot gnu dot org 2010-07-29 12:30 ------- Subject: Bug 45120 Author: rguenth Date: Thu Jul 29 12:30:09 2010 New Revision: 162676 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162676 Log: 2010-07-29 Richard Guenther <rguenther@suse.de> PR tree-optimization/45120 * tree-ssa-structalias.c (get_constraint_for_component_ref): Handle offset in DEREFs properly. (get_constraint_for_1): Handle MEM_REF offset properly. * gcc.dg/ipa/ipa-pta-15.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/ipa/ipa-pta-15.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-structalias.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45120 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-07-29 12:31 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-07-29 1:00 [Bug tree-optimization/45120] New: [4.6 Regression] -fipa-pta causes FAIL: gcc.c-torture/execute/pta-field-2.c execution zsojka at seznam dot cz 2010-07-29 10:02 ` [Bug tree-optimization/45120] " rguenth at gcc dot gnu dot org 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org 2010-07-29 12:31 ` rguenth at gcc dot gnu dot org
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