At revision 161501, bootstrapping fails at stage 2 on x86_64-apple-darwin10
with:
...
/opt/gcc/build_w/./prev-gcc/xgcc -B/opt/gcc/build_w/./prev-gcc/
-B/opt/gcc/gcc4.6w/x86_64-apple-darwin10.4.0/bin/
-B/opt/gcc/gcc4.6w/x86_64-apple-darwin10.4.0/bin/
-B/opt/gcc/gcc4.6w/x86_64-apple-darwin10.4.0/lib/ -isystem
/opt/gcc/gcc4.6w/x86_64-apple-darwin10.4.0/include -isystem
/opt/gcc/gcc4.6w/x86_64-apple-darwin10.4.0/sys-include -c -g -O2 -gtoggle
-DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -Werror -Wold-style-definition
-Wc++-compat -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild
-I../../work/gcc -I../../work/gcc/build -I../../work/gcc/../include
-I../../work/gcc/../libcpp/include -I/opt/sw64/include
-I../../work/gcc/../libdecnumber -I../../work/gcc/../libdecnumber/dpd
-I../libdecnumber -I/opt/sw64/include -DCLOOG_PPL_BACKEND
-I/opt/sw64/include \
-o build/genmodes.o ../../work/gcc/genmodes.c
../../work/gcc/genmodes.c: In function 'new_mode':
../../work/gcc/genmodes.c:153:1: internal compiler error: Segmentation fault
The backtrace of run -O2 genmodes.i is
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x00000141e4413800
0x0000000100387be1 in bitmap_clear ()
(gdb) bt
#0 0x0000000100387be1 in bitmap_clear ()
#1 0x0000000100387f43 in bitmap_obstack_free ()
#2 0x0000000100b3bcfa in vrp_finalize ()
#3 0x0000000100b3be34 in execute_vrp ()
#4 0x00000001007e1dba in execute_one_pass ()
#5 0x00000001007e21ab in execute_pass_list ()
#6 0x00000001007e21c9 in execute_pass_list ()
#7 0x0000000100995e9f in tree_rest_of_compilation ()
#8 0x0000000100c2aa3e in cgraph_expand_function ()
#9 0x0000000100c2acd5 in cgraph_expand_all_functions ()
#10 0x0000000100c2b3a7 in cgraph_optimize ()
#11 0x0000000100c28a31 in cgraph_finalize_compilation_unit ()
#12 0x000000010002e330 in c_write_global_declarations ()
#13 0x00000001008fb619 in compile_file ()
#14 0x00000001008fe0c5 in do_compile ()
#15 0x00000001008fe18f in toplev_main ()
#16 0x000000010010c7e8 in main ()
--
Summary: [4.6 Regression] Bootstrap failure for x86_64-apple-
darwin10: ICE while compiling genmodes.c
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dominiq at lps dot ens dot fr
GCC build triplet: x86_64-apple-darwin10
GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44699
