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[Bug tree-optimization/54942] [4.8 Regression] ICE: OOM with -O3 -fno-cse-follow-jumps -funroll-loops


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54942

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2012-10-17 05:00:16 UTC ---
==21397== Invalid read of size 8
==21397==    at 0x8C1D76: unroll_and_peel_loops(int) (sbitmap.h:141)
==21397==    by 0x8B25E7: rtl_unroll_and_peel_loops() (loop-init.c:378)
==21397==    by 0x905069: execute_one_pass(opt_pass*) (passes.c:2320)
==21397==    by 0x905494: execute_pass_list(opt_pass*) (passes.c:2381)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x6C61C7: expand_function(cgraph_node*) (cgraphunit.c:1601)
==21397==    by 0x6C8079: compile() (cgraphunit.c:1705)
==21397==    by 0x6C8654: finalize_compilation_unit() (cgraphunit.c:2080)
==21397==    by 0x5A25B7: c_write_global_declarations() (c-decl.c:10118)
==21397==    by 0x9EC004: compile_file() (toplev.c:560)
==21397==    by 0x9EDBB7: toplev_main(int, char**) (toplev.c:1866)
==21397==    by 0x5A334BC: (below main) (in /lib64/libc-2.15.so)
==21397==  Address 0x67ec2a0 is 0 bytes after a block of size 16 alloc'd
==21397==    at 0x4C29A80: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==21397==    by 0x117A6D7: xmalloc (xmalloc.c:147)
==21397==    by 0x983061: sbitmap_alloc(unsigned int) (sbitmap.c:85)
==21397==    by 0x8C1D60: unroll_and_peel_loops(int) (loop-unroll.c:467)
==21397==    by 0x8B25E7: rtl_unroll_and_peel_loops() (loop-init.c:378)
==21397==    by 0x905069: execute_one_pass(opt_pass*) (passes.c:2320)
==21397==    by 0x905494: execute_pass_list(opt_pass*) (passes.c:2381)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x6C61C7: expand_function(cgraph_node*) (cgraphunit.c:1601)
==21397==    by 0x6C8079: compile() (cgraphunit.c:1705)
==21397==    by 0x6C8654: finalize_compilation_unit() (cgraphunit.c:2080)
==21397==    by 0x5A25B7: c_write_global_declarations() (c-decl.c:10118)
==21397==    by 0x9EC004: compile_file() (toplev.c:560)
==21397==    by 0x9EDBB7: toplev_main(int, char**) (toplev.c:1866)
==21397==    by 0x5A334BC: (below main) (in /lib64/libc-2.15.so)
==21397== 
==21397== Invalid write of size 8
==21397==    at 0x8C1D87: unroll_and_peel_loops(int) (sbitmap.h:141)
==21397==    by 0x8B25E7: rtl_unroll_and_peel_loops() (loop-init.c:378)
==21397==    by 0x905069: execute_one_pass(opt_pass*) (passes.c:2320)
==21397==    by 0x905494: execute_pass_list(opt_pass*) (passes.c:2381)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x6C61C7: expand_function(cgraph_node*) (cgraphunit.c:1601)
==21397==    by 0x6C8079: compile() (cgraphunit.c:1705)
==21397==    by 0x6C8654: finalize_compilation_unit() (cgraphunit.c:2080)
==21397==    by 0x5A25B7: c_write_global_declarations() (c-decl.c:10118)
==21397==    by 0x9EC004: compile_file() (toplev.c:560)
==21397==    by 0x9EDBB7: toplev_main(int, char**) (toplev.c:1866)
==21397==    by 0x5A334BC: (below main) (in /lib64/libc-2.15.so)
==21397==  Address 0x67ec2a0 is 0 bytes after a block of size 16 alloc'd
==21397==    at 0x4C29A80: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==21397==    by 0x117A6D7: xmalloc (xmalloc.c:147)
==21397==    by 0x983061: sbitmap_alloc(unsigned int) (sbitmap.c:85)
==21397==    by 0x8C1D60: unroll_and_peel_loops(int) (loop-unroll.c:467)
==21397==    by 0x8B25E7: rtl_unroll_and_peel_loops() (loop-init.c:378)
==21397==    by 0x905069: execute_one_pass(opt_pass*) (passes.c:2320)
==21397==    by 0x905494: execute_pass_list(opt_pass*) (passes.c:2381)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x9054A6: execute_pass_list(opt_pass*) (passes.c:2382)
==21397==    by 0x6C61C7: expand_function(cgraph_node*) (cgraphunit.c:1601)
==21397==    by 0x6C8079: compile() (cgraphunit.c:1705)
==21397==    by 0x6C8654: finalize_compilation_unit() (cgraphunit.c:2080)
==21397==    by 0x5A25B7: c_write_global_declarations() (c-decl.c:10118)
==21397==    by 0x9EC004: compile_file() (toplev.c:560)
==21397==    by 0x9EDBB7: toplev_main(int, char**) (toplev.c:1866)
==21397==    by 0x5A334BC: (below main) (in /lib64/libc-2.15.so)
==21397== 

cc1: out of memory allocating 17179869180 bytes after a total of 0 bytes


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