[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2010-10-28 20:26:24 UTC ---
This works with
GNU C (GCC) version 4.6.0 20101026 (experimental) [trunk revision 165988]
(x86_64-unknown-linux-gnu)

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

--- Comment #5 from Zdenek Sojka <zsojka at seznam dot cz> 2010-10-28 20:36:20 UTC ---
It seems to have disappeared between r163636 and r165699. Both original and
reduced testcase stopped crashing between those revisions.

4.5 r165781 doesn't crash as well.

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-28 22:39:39 UTC ---
It was fixed by revision 163775:

http://gcc.gnu.org/ml/gcc-cvs/2010-09/msg00066.html

[Bug 45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

Richard Guenther <rguenth@gcc.gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #7 from Richard Guenther <rguenth@gcc.gnu.org> 2010-11-03 16:08:02 UTC ---
Fixed.

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[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-03 16:10:31 UTC ---
*** Bug 45220 has been marked as a duplicate of this bug. ***

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2010-08-07 18:46 -------
It is caused by revision 162842:

http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00053.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-08-07 10:44 -------
Confirmed.

(gdb) call debug_gimple_stmt ($1)
.MEM_15 = PHI <.MEM_19
Program received signal SIGSEGV, Segmentation fault.
0x08384621 in gimple_phi_arg_edge (gs=0xb77611b0, i=0)
    at /home/richard/src/trunk/gcc/tree-flow-inline.h:479
479       return EDGE_PRED (gimple_bb (gs), i);

Immediate uses are hosed before DSE.  And partial inlining is the cause.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-08-07 10:44:03
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219

[Bug tree-optimization/45219] [4.6 Regression] ICE: SIGSEGV in dominated_by_p (dominance.c:973) with -O2 -fprofile-generate

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-08-06 23:00 -------
Created an attachment (id=21429)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21429&action=view)
reduced testcase (from gcc.dg/tree-ssa/20041008-1.c)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45219