Command line:
$ CXX="/mnt/svn/gcc-trunk/binary-157723-lto/bin/g++"
$ FLAGS="-O1 -freorder-blocks-and-partition -ftree-vectorize
-fgraphite-identity -m32 -mstackrealign"
$ $CXX -fprofile-arcs $FLAGS testcase.c
$ ./a.out
$ $CXX -fprofile-use $FLAGS testcase.c
testcase.c: In function 'int test_for2(int, int)':
testcase.c:10:1: internal compiler error: vector VEC(dw_cfi_ref,heap) grow
domain error, in output_cfis at dwarf2out.c:3346
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
The worse situation is when gcc is OOM-killed, or shows error message about not
being able to allocate (random big number) bytes of memory:
cc1plus: out of memory allocating 1305533456 bytes after a total of 0 bytes
What happens is random, but "echo 0 > /proc/sys/kernel/randomize_va_space"
seems to prevent the random behaviour.
Tested revisions:
r157723 - crash
r157460 - crash
r157326 - crash
r157161 - OK
r156293 - OK
r153685 - OK
Valgrind doesn't show any warning
--
Summary: ICE: vector VEC(dw_cfi_ref,heap) grow domain error, in
output_cfis at dwarf2out.c:3346 or OOM-killed
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: zsojka at seznam dot cz
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43540
