------- Comment #2 from howarth at nitro dot med dot uc dot edu 2010-07-23
01:59 -------
The ICE in lto1 backtraces as...
gdb /sw/lib/gcc4.6/libexec/gcc/x86_64-apple-darwin10.4.0/4.6.0/lto1
(gdb) r -fPIC -quiet -dumpdir ./ -dumpbase cns_solve-1007222053.exe.ltrans2
-mmacosx-version-min=10.6.4 -mtune=generic -auxbase-strip
cns_solve-1007222053.exe.ltrans2.ltrans.o -O2 -w -version -fdefault-integer-8
-fwhole-program -fltrans cns_solve-1007222053.exe.ltrans2.o -o
cns_solve-1007222053.exe.ltrans2.s
Starting program:
/sw/lib/gcc4.6/libexec/gcc/x86_64-apple-darwin10.4.0/4.6.0/lto1 -fPIC -quiet
-dumpdir ./ -dumpbase cns_solve-1007222053.exe.ltrans2
-mmacosx-version-min=10.6.4 -mtune=generic -auxbase-strip
cns_solve-1007222053.exe.ltrans2.ltrans.o -O2 -w -version -fdefault-integer-8
-fwhole-program -fltrans cns_solve-1007222053.exe.ltrans2.o -o
cns_solve-1007222053.exe.ltrans2.s
Reading symbols for shared libraries .++++++++++++..... done
GNU GIMPLE (GCC) version 4.6.0 20100722 (experimental)
(x86_64-apple-darwin10.4.0)
compiled by GNU C version 4.6.0 20100722 (experimental), GMP version
4.3.2, MPFR version 2.4.2-p3, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU GIMPLE (GCC) version 4.6.0 20100722 (experimental)
(x86_64-apple-darwin10.4.0)
compiled by GNU C version 4.6.0 20100722 (experimental), GMP version
4.3.2, MPFR version 2.4.2-p3, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
rewrite_use_address (use=0x14151e260, cand=<value temporarily unavailable, due
to optimizations>) at ../../gcc-4.6-20100722/gcc/tree-ssa-loop-ivopts.c:5607
5607 if ((INDIRECT_REF_P (base)
(gdb) bt
#0 rewrite_use_address (use=0x14151e260, cand=<value temporarily unavailable,
due to optimizations>) at
../../gcc-4.6-20100722/gcc/tree-ssa-loop-ivopts.c:5607
#1 0x0000000100593e24 in tree_ssa_iv_optimize () at
../../gcc-4.6-20100722/gcc/tree-ssa-loop-ivopts.c:5717
#2 0x00000001005a0d2a in tree_ssa_loop_ivopts () at
../../gcc-4.6-20100722/gcc/tree-ssa-loop.c:634
#3 0x000000010044c438 in execute_one_pass (pass=0x1008f73c0) at
../../gcc-4.6-20100722/gcc/passes.c:1564
#4 0x000000010044c6dd in execute_pass_list (pass=0x1008f73c0) at
../../gcc-4.6-20100722/gcc/passes.c:1619
#5 0x000000010044c6ef in execute_pass_list (pass=0x1008f79c0) at
../../gcc-4.6-20100722/gcc/passes.c:1620
#6 0x000000010044c6ef in execute_pass_list (pass=0x1008f6be0) at
../../gcc-4.6-20100722/gcc/passes.c:1620
#7 0x0000000100540825 in tree_rest_of_compilation (fndecl=0x141718c00) at
../../gcc-4.6-20100722/gcc/tree-optimize.c:452
#8 0x000000010069974d in cgraph_expand_function (node=0x141720150) at
../../gcc-4.6-20100722/gcc/cgraphunit.c:1643
#9 0x000000010069ba69 in cgraph_optimize () at
../../gcc-4.6-20100722/gcc/cgraphunit.c:1722
#10 0x0000000100017a49 in lto_main (debug_p=<value temporarily unavailable, due
to optimizations>) at ../../gcc-4.6-20100722/gcc/lto/lto.c:1852
#11 0x00000001004f9729 in toplev_main (argc=20, argv=0x7fff5fbfeea8) at
../../gcc-4.6-20100722/gcc/toplev.c:978
#12 0x0000000100000f44 in start ()
(gdb)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45037
