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[Bug tree-optimization/36504] [4.3/4.4 regression] ICE when building xorg-server with -O3 -fprefetch-loop-arrays
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Jun 2008 09:29:19 -0000
- Subject: [Bug tree-optimization/36504] [4.3/4.4 regression] ICE when building xorg-server with -O3 -fprefetch-loop-arrays
- References: <bug-36504-10160@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2008-06-12 09:29 -------
Program received signal SIGSEGV, Segmentation fault.
0x00000000008be25d in dr_analyze_alias (dr=0x1424660)
at /space/rguenther/src/svn/gcc-4_3-branch/gcc/tree-data-ref.c:769
769 if (DECL_P (base))
(gdb) print base
$1 = (tree) 0x0
(gdb) call debug_generic_expr (dr->ref)
VIEW_CONVERT_EXPR<struct ureg>(0)
eventually the DR code should be more robust here.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |spop at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Component|target |tree-optimization
Ever Confirmed|0 |1
Keywords| |ice-on-valid-code
Known to fail|4.3.1 |4.3.1 4.4.0
Last reconfirmed|0000-00-00 00:00:00 |2008-06-12 09:29:19
date| |
Summary|[4.3 regression] ICE when |[4.3/4.4 regression] ICE
|building xorg-server with - |when building xorg-server
|O3 -fprefetch-loop-arrays |with -O3 -fprefetch-loop-
| |arrays
Target Milestone|--- |4.3.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36504