[ i486 ]
gcc -O2 -fno-strict-aliasing -fwrapv -march=i486 -ggdb -DHAVE_POSIX_REGCOMP
-c -o fetch.o fetch.c
cc1: out of memory allocating 4064 bytes after a total of 1292098548 bytes
[ powerpc ]
gcc -O2 -fno-strict-aliasing -fwrapv -fsigned-char -ggdb -DHAVE_POSIX_REGCOMP
-c -o fetch.o fetch.c
cc: Internal error: Killed (program cc1)
flags to reporduce bug: '-O2 -fwrapv -march=i486'
note that e.g. with -march=i686 it works fine.
(gdb) bt
#0 0x00000000006bd510 in ggc_alloc_stat ()
#1 0x00000000006a3e14 in make_node_stat ()
#2 0x00000000006a6c76 in build2_stat ()
#3 0x0000000000562056 in fold_build2_stat ()
#4 0x000000000055c83c in fold_binary ()
#5 0x0000000000562040 in fold_build2_stat ()
#6 0x00000000006c5adf in extract_range_from_assert ()
#7 0x00000000006c6dcb in extract_range_from_expr ()
#8 0x00000000006c9e9e in vrp_visit_assignment ()
#9 0x00000000006cabfd in vrp_visit_stmt ()
#10 0x00000000004a08f8 in simulate_stmt ()
#11 0x00000000004a0bfa in process_ssa_edge_worklist ()
#12 0x00000000004a1916 in ssa_propagate ()
#13 0x00000000006cc3a4 in execute_vrp ()
#14 0x00000000006c0199 in execute_one_pass ()
#15 0x00000000006c022c in execute_pass_list ()
#16 0x00000000006c0240 in execute_pass_list ()
#17 0x000000000045d12e in tree_rest_of_compilation ()
#18 0x000000000040cac3 in c_expand_body ()
#19 0x00000000006fa50f in cgraph_expand_function ()
#20 0x00000000006fa646 in cgraph_expand_all_functions ()
#21 0x00000000006faa6b in cgraph_optimize ()
#22 0x000000000040debf in c_write_global_declarations ()
#23 0x00000000006a2419 in compile_file ()
#24 0x00000000006a38ed in do_compile ()
#25 0x00000000006a394e in toplev_main ()
#26 0x000000000044a601 in main ()
--
Summary: '-O2 -fwrapv' exhausts memory.
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pluto at agmk dot net
GCC build triplet: 486, powerpc
GCC host triplet: 486, powerpc
GCC target triplet: 486, powerpc
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28187
