http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47152
Summary: ice in try_head_merge_bb at cfgcleanup.c:2177
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: ae...@gcc.gnu.org
Host: x86_64-unknown-linux-gnu
Target: cris-axis-elf
Hello.
make[4]: Entering directory `/home/aesok/cris/build/cris-elf/v10/libgcc'
# If this is the top-level multilib, build all the other
# multilibs.
/home/aesok/cris/build/./gcc/xgcc -B/home/aesok/cris/build/./gcc/
-B/home/aesok/
cross-local/cris-elf/cris-elf/bin/
-B/home/aesok/cross-local/cris-elf/cris-elf/l
ib/ -isystem /home/aesok/cross-local/cris-elf/cris-elf/include -isystem
/home/ae
sok/cross-local/cris-elf/cris-elf/sys-include --sysroot=/home/aesok/cross-local
/cris-elf -g -O2 -march=v10 -mbest-lib-options -O2 -g -O2 -DIN_GCC
-DCROSS_DI
RECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmi
ssing-prototypes -Wold-style-definition -isystem ./include -g -DIN_LIBGCC2
-
D__GCC_FLOAT_NOT_NEEDED -fno-stack-protector -I. -I. -I../../.././gcc
-I../../
../../gcc/libgcc -I../../../../gcc/libgcc/. -I../../../../gcc/libgcc/../gcc
-I..
/../../../gcc/libgcc/../include -DHAVE_CC_TLS -DUSE_EMUTLS -o _addsub_df.o -MT
_addsub_df.o -MD -MP -MF _addsub_df.dep -DFINE_GRAINED_LIBRARIES -DL_addsub_df
-
c ../../.././gcc/dp-bit.c
../../.././gcc/dp-bit.c: In function '_fpadd_parts':
../../.././gcc/dp-bit.c:730:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[4]: *** [_addsub_df.o] Error 1
This GDB was configured as "x86_64-linux-gnu".
(gdb) file /home/aesok/cris/build/./gcc/cc1
Reading symbols from /home/aesok/cris/build/gcc/cc1...done.
(gdb) run -fpreprocessed dp-bit.i -melf -ffunction-sections -fdata-sections
-quiet -dumpbase dp-bit.c -march=v10 -mbest-lib-options -auxbase-strip
_addsub_df.o -g -g -g -O2 -O2 -O2 -Wextra -Wall -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -version
-fno-stack-protector -o dp-bit.s
Starting program: /home/aesok/cris/build/gcc/cc1 -fpreprocessed dp-bit.i -melf
-ffunction-sections -fdata-sections -quiet -dumpbase dp-bit.c -march=v10
-mbest-lib-options -auxbase-strip _addsub_df.o -g -g -g -O2 -O2 -O2 -Wextra
-Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -version -fno-stack-protector -o dp-bit.s
GNU C (GCC) version 4.6.0 20110102 (experimental) [trunk revision 152933]
(cris-elf)
compiled by GNU C version 4.3.2, GMP version 4.2.2, MPFR version 2.4.1,
MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.6.0 20110102 (experimental) [trunk revision 152933]
(cris-elf)
compiled by GNU C version 4.3.2, GMP version 4.2.2, MPFR version 2.4.1,
MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: d661c5447d50525e7c2e92079814b9be
Program received signal SIGSEGV, Segmentation fault.
try_head_merge_bb (bb=0x7ffff7635888) at ../../gcc/gcc/cfgcleanup.c:2177
2177 while (!NONDEBUG_INSN_P (curr));
(gdb) bt
#0 try_head_merge_bb (bb=0x7ffff7635888) at ../../gcc/gcc/cfgcleanup.c:2177
#1 0x00000000009ff29e in cleanup_cfg (mode=2)
at ../../gcc/gcc/cfgcleanup.c:2480
#2 0x0000000000a17f47 in rest_of_handle_stack_adjustments ()
at ../../gcc/gcc/combine-stack-adj.c:554
#3 0x000000000072d34f in execute_one_pass (pass=0xe8b0e0)
at ../../gcc/gcc/passes.c:1553
#4 0x000000000072d645 in execute_pass_list (pass=0xe8b0e0)
at ../../gcc/gcc/passes.c:1608
#5 0x000000000072d65d in execute_pass_list (pass=0xe86880)
at ../../gcc/gcc/passes.c:1609
#6 0x000000000072d65d in execute_pass_list (pass=0xe86820)
at ../../gcc/gcc/passes.c:1609
#7 0x000000000080f556 in tree_rest_of_compilation (fndecl=0x7ffff75c8400)
at ../../gcc/gcc/tree-optimize.c:422
#8 0x0000000000994110 in cgraph_expand_function (node=0x7ffff75c6580)
at ../../gcc/gcc/cgraphunit.c:1508
#9 0x0000000000996f29 in cgraph_optimize ()
at ../../gcc/gcc/cgraphunit.c:1567
#10 0x000000000099735d in cgraph_finalize_compilation_unit ()
at ../../gcc/gcc/cgraphunit.c:1031
#11 0x000000000047a4b4 in c_write_global_declarations ()
at ../../gcc/gcc/c-decl.c:9843
#12 0x00000000007b299f in toplev_main (argc=30, argv=0x7fffffffe5b8)
at ../../gcc/gcc/toplev.c:591
#13 0x00007ffff766a1a6 in __libc_start_main () from /lib/libc.so.6
#14 0x0000000000469a19 in _start ()
(gdb)
Anatoly.
