public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413
@ 2013-05-02 14:59 schwab@linux-m68k.org
2013-05-02 15:10 ` [Bug tree-optimization/57144] " rguenth at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: schwab@linux-m68k.org @ 2013-05-02 14:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144
Bug #: 57144
Summary: [4.9 regression] mpfr miscompiled after r198413
Classification: Unclassified
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: schwab@linux-m68k.org
CC: law@gcc.gnu.org
Depends on: 57124
Target: ia64-*-*
r198413 is causing miscompilation of mpfr-2.4.2 on ia64, seen by a lot of
failures in its testsuite, some are looping infinitely. This makes it
impossible to bootstrap with an in-tree mpfr, because the fortran compiler
hangs while calling mpfr_log10 from gfc_arith_init_1.
The patch in <http://permalink.gmane.org/gmane.comp.gcc.patches/285076> does
not help.
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug tree-optimization/57144] [4.9 regression] mpfr miscompiled after r198413 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org @ 2013-05-02 15:10 ` rguenth at gcc dot gnu.org 2013-05-02 16:28 ` law at redhat dot com ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2013-05-02 15:10 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.9.0 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/57144] [4.9 regression] mpfr miscompiled after r198413 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org 2013-05-02 15:10 ` [Bug tree-optimization/57144] " rguenth at gcc dot gnu.org @ 2013-05-02 16:28 ` law at redhat dot com 2013-05-02 17:03 ` law at redhat dot com ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: law at redhat dot com @ 2013-05-02 16:28 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144 Jeffrey A. Law <law at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |law at redhat dot com --- Comment #1 from Jeffrey A. Law <law at redhat dot com> 2013-05-02 16:28:40 UTC --- Thanks. I can trigger a 2.4.2 testsuite failure on x86_64. Investigating. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/57144] [4.9 regression] mpfr miscompiled after r198413 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org 2013-05-02 15:10 ` [Bug tree-optimization/57144] " rguenth at gcc dot gnu.org 2013-05-02 16:28 ` law at redhat dot com @ 2013-05-02 17:03 ` law at redhat dot com 2013-05-03 16:37 ` law at redhat dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: law at redhat dot com @ 2013-05-02 17:03 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144 Jeffrey A. Law <law at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2013-05-02 AssignedTo|unassigned at gcc dot |law at redhat dot com |gnu.org | Ever Confirmed|0 |1 --- Comment #2 from Jeffrey A. Law <law at redhat dot com> 2013-05-02 17:03:03 UTC --- It looks like more overflow issues, though slightly different than 57124. In the case I looked at in the mpfr code we overflow converting a constant to the desired type. It's all downhill from there. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/57144] [4.9 regression] mpfr miscompiled after r198413 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org ` (2 preceding siblings ...) 2013-05-02 17:03 ` law at redhat dot com @ 2013-05-03 16:37 ` law at redhat dot com 2013-05-04 11:20 ` schwab@linux-m68k.org 2013-05-24 17:22 ` law at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: law at redhat dot com @ 2013-05-03 16:37 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144 --- Comment #3 from Jeffrey A. Law <law at redhat dot com> 2013-05-03 16:37:34 UTC --- I've checked in a patch to the trunk which should fix this problem. If you could verify on ia64 it would be greatly appreciated. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/57144] [4.9 regression] mpfr miscompiled after r198413 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org ` (3 preceding siblings ...) 2013-05-03 16:37 ` law at redhat dot com @ 2013-05-04 11:20 ` schwab@linux-m68k.org 2013-05-24 17:22 ` law at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: schwab@linux-m68k.org @ 2013-05-04 11:20 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144 Andreas Schwab <schwab@linux-m68k.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #4 from Andreas Schwab <schwab@linux-m68k.org> 2013-05-04 11:20:08 UTC --- Works. http://gcc.gnu.org/ml/gcc-testresults/2013-05/msg00274.html ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/57144] [4.9 regression] mpfr miscompiled after r198413 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org ` (4 preceding siblings ...) 2013-05-04 11:20 ` schwab@linux-m68k.org @ 2013-05-24 17:22 ` law at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: law at redhat dot com @ 2013-05-24 17:22 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57144 Bug 57144 depends on bug 57124, which changed state. Bug 57124 Summary: 254.gap@spec2000 got miscompare after r198413 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57124 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-05-24 17:22 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-05-02 14:59 [Bug tree-optimization/57144] New: [4.9 regression] mpfr miscompiled after r198413 schwab@linux-m68k.org 2013-05-02 15:10 ` [Bug tree-optimization/57144] " rguenth at gcc dot gnu.org 2013-05-02 16:28 ` law at redhat dot com 2013-05-02 17:03 ` law at redhat dot com 2013-05-03 16:37 ` law at redhat dot com 2013-05-04 11:20 ` schwab@linux-m68k.org 2013-05-24 17:22 ` law at redhat dot com
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).