http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52139
Bug #: 52139
Summary: ICE: in remove_insn, at emit-rtl.c:3960 with -O -fPIC
-fno-tree-dominator-opts -fno-tree-fre --param
case-values-threshold=1
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 26587
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26587
reduced testcase
Compiler output:
$ gcc -O -fPIC -fno-tree-dominator-opts -fno-tree-fre --param
case-values-threshold=1 testcase.c
testcase.c: In function 'foo':
testcase.c:17:1: internal compiler error: in remove_insn, at emit-rtl.c:3960
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
(gdb) bt
#0 fancy_abort (file=0x1264468 "/mnt/svn/gcc-trunk/gcc/emit-rtl.c", line=3960,
function=0x1265661 "remove_insn")
at /mnt/svn/gcc-trunk/gcc/diagnostic.c:898
#1 0x000000000073f55c in remove_insn (insn=0x7ffff5bc6580) at
/mnt/svn/gcc-trunk/gcc/emit-rtl.c:3960
#2 0x000000000069c541 in delete_insn (insn=0x7ffff5bc6580) at
/mnt/svn/gcc-trunk/gcc/cfgrtl.c:145
#3 0x000000000069fb8a in cfg_layout_merge_blocks (a=0x7ffff5ba5410,
b=0x7ffff5ba5340) at /mnt/svn/gcc-trunk/gcc/cfgrtl.c:2896
#4 0x000000000068c5f6 in merge_blocks (a=0x7ffff5ba5410, b=0x7ffff5ba5340) at
/mnt/svn/gcc-trunk/gcc/cfghooks.c:683
#5 0x00000000010810b7 in try_optimize_cfg (mode=<optimized out>) at
/mnt/svn/gcc-trunk/gcc/cfgcleanup.c:2696
#6 cleanup_cfg (mode=<optimized out>) at
/mnt/svn/gcc-trunk/gcc/cfgcleanup.c:2940
#7 0x00000000010d6cc6 in rest_of_handle_cse () at
/mnt/svn/gcc-trunk/gcc/cse.c:7327
#8 rest_of_handle_cse () at /mnt/svn/gcc-trunk/gcc/cse.c:7310
#9 0x00000000008fbba5 in execute_one_pass (pass=0x17ced80) at
/mnt/svn/gcc-trunk/gcc/passes.c:2081
#10 0x00000000008fbf65 in execute_pass_list (pass=0x17ced80) at
/mnt/svn/gcc-trunk/gcc/passes.c:2136
#11 0x00000000008fbf77 in execute_pass_list (pass=0x17c9f40) at
/mnt/svn/gcc-trunk/gcc/passes.c:2137
#12 0x0000000000a5e24e in tree_rest_of_compilation (fndecl=0x7ffff5ba6e00) at
/mnt/svn/gcc-trunk/gcc/tree-optimize.c:422
#13 0x00000000006affca in cgraph_expand_function (node=0x7ffff5a976c0) at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1829
#14 0x00000000006b1ebc in cgraph_expand_all_functions () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1896
#15 cgraph_optimize () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:2210
#16 0x00000000006b250a in cgraph_finalize_compilation_unit () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1338
#17 0x000000000058ec70 in c_write_global_declarations () at
/mnt/svn/gcc-trunk/gcc/c-decl.c:10030
#18 0x00000000009f0a2c in compile_file () at
/mnt/svn/gcc-trunk/gcc/toplev.c:573
#19 do_compile () at /mnt/svn/gcc-trunk/gcc/toplev.c:1938
#20 toplev_main (argc=18, argv=0x7fffffffd7f8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:2014
#21 0x00007ffff61cc09d in __libc_start_main () from /lib64/libc.so.6
#22 0x0000000000572371 in _start ()
Tested revisions:
r183913 - crash
