Preprocessed file supplied (bug.i)
This would appear to be related to RESOLVED bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21188 and
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21227
As far as I can make out the fixes for those bugs have been checked in, I'm
using gcc tip of CVS mainline as at Wed Jun 1 02:00 UTC 2005 and the bug is
still present. ie. This is either a different bug manifesting in the same place
or the old bug revived. This affects both the arm and the i686 backends, so I
suspect it is before it hits the backend.)
/usr/local/bin/arm-elf-gcc -v
Using built-in specs.
Target: arm-elf
Configured with: ../combined/configure --target=arm-elf --enable-languages=c,c++
--with-gnu-as --with-gnu-ld --with-newlib
Thread model: single
gcc version 4.1.0 20050601 (experimental)
Also...
/opt/gcc4_1/bin/gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc/configure --enable-languages=c --prefix=/opt/gcc4_1
Thread model: posix
gcc version 4.1.0 20050601 (experimental)
Using gcc -v I can see what gcc is running when it crashes, and hence reproduce
the bug like so...
cd /home/johnc/tmp
/opt/gcc4_1/libexec/gcc/i686-pc-linux-gnu/4.1.0/cc1 -fpreprocessed
/home/johnc/tmp/bug.i -dumpbase bug.i -auxbase bug -Os -std=c9x -v -o
/home/johnc/tmp/bug.s
ignoring nonexistent directory
"/opt/gcc4_1/lib/gcc/i686-pc-linux-gnu/4.1.0/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/opt/gcc4_1/include
/opt/gcc4_1/lib/gcc/i686-pc-linux-gnu/4.1.0/include
/usr/include
End of search list.
strcoll
dsdblm_CreateBlock
/home/johnc/tmp/bug.i: In function 'dsdblm_CreateBlock':
/home/johnc/tmp/bug.i:201: warning: comparison between pointer and integer
dsdblm_WriteBlock
Analyzing compilation unitPerforming intraprocedural optimizations
Assembling functions:
dsdblm_CreateBlock
/home/johnc/tmp/bug.i: In function 'dsdblm_CreateBlock':
/home/johnc/tmp/bug.i:196: internal compiler error: in compare_values, at
tree-vrp.c:301
I can then use gdb on cc1 and put a breakpoint on fancy_abort and get a stack
trace...
where
#0 fancy_abort (file=0x12d <Address 0x12d out of bounds>, line=0,
function=0x12d <Address 0x12d out of bounds>)
at ../../combined/gcc/diagnostic.c:588
#1 0x08382ab8 in compare_values (val1=0xb7fa8680, val2=0xb7ddfc30) at
../../combined/gcc/tree-vrp.c:410
#2 0x083848bd in compare_range_with_value (comp=LE_EXPR, vr=0xb7dc9840,
val=0xb7ddfc30) at ../../combined/gcc/tree-vrp.c:1234
#3 0x08386e64 in vrp_evaluate_conditional (cond=0xb7d66798) at
../../combined/gcc/tree-vrp.c:1992
#4 0x08387025 in vrp_visit_cond_stmt (stmt=0xb7d6c168, taken_edge_p=0xbf9bec20)
at ../../combined/gcc/tree-vrp.c:2044
#5 0x083874df in vrp_visit_stmt (stmt=0xb7d6c168, taken_edge_p=0x12d,
output_p=0x12d) at ../../combined/gcc/tree-vrp.c:2089
#6 0x08163401 in simulate_stmt (stmt=0xb7d6c168) at
../../combined/gcc/tree-ssa-propagate.c:302
#7 0x08163896 in simulate_block (block=0xb7de2af8) at
../../combined/gcc/tree-ssa-propagate.c:425
#8 0x08164a7d in ssa_propagate (visit_stmt=0x12d, visit_phi=0x12d) at
../../combined/gcc/tree-ssa-propagate.c:667
#9 0x08388526 in execute_vrp () at ../../combined/gcc/tree-vrp.c:2383
#10 0x080d2c02 in execute_one_pass (pass=0x8507600) at
../../combined/gcc/tree-optimize.c:623
#11 0x080d2d28 in execute_pass_list (pass=0x8507600) at
../../combined/gcc/tree-optimize.c:660
#12 0x080d2d48 in execute_pass_list (pass=0x85053c0) at
../../combined/gcc/tree-optimize.c:661
#13 0x080d3008 in tree_rest_of_compilation (fndecl=0xb7de157c) at
../../combined/gcc/tree-optimize.c:793
#14 0x0805d44d in c_expand_body (fndecl=0xb7de157c) at
../../combined/gcc/c-decl.c:6593
#15 0x083adf7a in cgraph_expand_function (node=0xb7de1b64) at
../../combined/gcc/cgraphunit.c:949
#16 0x083ae14b in cgraph_expand_all_functions () at
../../combined/gcc/cgraphunit.c:1013
#17 0x083ae41a in cgraph_optimize () at ../../combined/gcc/cgraphunit.c:1115
#18 0x0834d136 in compile_file () at ../../combined/gcc/toplev.c:1008
#19 0x0834e78b in do_compile () at ../../combined/gcc/toplev.c:2123
#20 0x0834e805 in toplev_main (argc=301, argv=0xbf9bef34) at
../../combined/gcc/toplev.c:2155
#21 0x080b110b in main (argc=301, argv=0x12d) at ../../combined/gcc/main.c:35
--
Summary: ICE in compare_values, at tree-vrp.c:301
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: john dot carter at tait dot co dot nz
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: i486-elf-linux
GCC target triplet: arm-elf && i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21858
