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[Bug rtl-optimization/17723] [4.0.0 regression] [ICE on legal code] gcc segfaults with -O2
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Sep 2004 13:46:52 -0000
- Subject: [Bug rtl-optimization/17723] [4.0.0 regression] [ICE on legal code] gcc segfaults with -O2
- References: <20040929130434.17723.martin@mpa-garching.mpg.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-29 13:46 -------
I can reproduce but I have not reduced it yet. Here is the backtrace:
#0 0x08180098 in merge_memattrs (x=0xf695a0e4, y=0xf695a1a4) at /home/gates/pinskia/src/
gnu/gcc/src/gcc/cfgcleanup.c:956
#1 0x0817ffcd in merge_memattrs (x=0xf695a0f0, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#2 0x0817ffcd in merge_memattrs (x=0xf695a0d8, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#3 0x0817ffcd in merge_memattrs (x=0xf69b5ccc, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#4 0x0817ffcd in merge_memattrs (x=0xf69b5cd8, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#5 0x0817ffcd in merge_memattrs (x=0xf69b5ce4, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#6 0x0817ffcd in merge_memattrs (x=0xf69b5cf0, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#7 0x0817ffcd in merge_memattrs (x=0xf69b5cfc, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#8 0x0817ffcd in merge_memattrs (x=0xf69b5d08, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#9 0x0817ffcd in merge_memattrs (x=0xf69b5d14, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#10 0x0817ffcd in merge_memattrs (x=0xf6934460, y=Variable "y" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:981
#11 0x08180bd4 in try_crossjump_to_edge (mode=19, e1=Variable "e1" is not available.
) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:1148
#12 0x08181ec1 in try_crossjump_bb (mode=19, bb=0xf6a8cb54) at /home/gates/pinskia/src/gnu/
gcc/src/gcc/cfgcleanup.c:1803
#13 0x08182fcf in cleanup_cfg (mode=19) at /home/gates/pinskia/src/gnu/gcc/src/gcc/cfgcleanup.c:
1990
#14 0x083e573f in rest_of_handle_flow2 () at /home/gates/pinskia/src/gnu/gcc/src/gcc/passes.c:
1370
#15 0x083e611e in rest_of_compilation () at /home/gates/pinskia/src/gnu/gcc/src/gcc/passes.c:1773
--
What |Removed |Added
----------------------------------------------------------------------------
Component|c |rtl-optimization
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17723