Compiling glibc I get a segmentation fault: /opt/gcc/4.1-devel/libexec/gcc/x86_64-suse-linux-gnu/4.1.0/cc1 -fpreprocessed strptime_l.i -quiet -dumpbase strptime_l.c -mtune=k8 -auxbase-strip /builds/glibc/4.1+nptl/time/strptime_l.o -g -O2 -Wall -Winline -Wstrict-prototypes -Wwrite-strings -std=gnu99 -version -o strptime_l.s GNU C version 4.1.0 20050821 (experimental) (x86_64-suse-linux-gnu) compiled by GNU C version 4.1.0 20050821 (experimental). GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 5a830930ea2c878ce9ab608e6b40e0e8 strptime_l.i: In function ‘__strptime_internal’: strptime_l.i:7079: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions.
(gdb) r -fpreprocessed strptime_l.i -quiet -dumpbase strptime_l.c -mtune=k8 -auxbase-strip /builds/glibc/4.1+nptl/time/strptime_l.o -g -O2 -Wall -Winline -Wstrict-prototypes -Wwrite-strings -std=gnu99 -version -o strptime_l.s GNU C version 4.1.0 20050821 (experimental) (x86_64-suse-linux-gnu) compiled by GNU C version 4.1.0 20050821 (experimental). GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 5a830930ea2c878ce9ab608e6b40e0e8 Program received signal SIGSEGV, Segmentation fault. fold_binary (code=MINUS_EXPR, type=0x2aaaaadf86e0, op0=0x0, op1=0x2aaaab27ad80) at /cvs/gcc/gcc/fold-const.c:7127 7127 if (TREE_CODE (arg0) == COMPOUND_EXPR) (gdb) bt #0 fold_binary (code=MINUS_EXPR, type=0x2aaaaadf86e0, op0=0x0, op1=0x2aaaab27ad80) at /cvs/gcc/gcc/fold-const.c:7127 #1 0x000000000060e919 in fold_build2_stat (code=MINUS_EXPR, type=0x2aaaaadf86e0, op0=0x0, op1=0x2aaaab27ad80) at /cvs/gcc/gcc/fold-const.c:10480 #2 0x00000000004d1010 in estimate_numbers_of_iterations_loop (loop=0xf4f7c0) at /cvs/gcc/gcc/tree-ssa-loop-niter.c:1471 #3 0x00000000004d1588 in scev_probably_wraps_p (type=0x2aaaaadf86e0, base=<value optimized out>, step=<value optimized out>, at_stmt=0x0, loop=0xf4f7c0, init_is_max=0x7fffffffd5e7 "", unknown_max=0x7fffffffd5e7 "") at /cvs/gcc/gcc/tree-ssa-loop-niter.c:1949 #4 0x00000000009d4552 in chrec_convert (type=0x2aaaaadf86e0, chrec=0x2aaaab33c960, at_stmt=0x0) at /cvs/gcc/gcc/tree-chrec.c:1133 #5 0x00000000009d9fde in instantiate_parameters_1 (loop=0xf4f7c0, chrec=0x2aaaab2fd180, allow_superloop_chrecs=1 '\001', cache=0xf144c0) at /cvs/gcc/gcc/tree-scalar-evolution.c:2080 #6 0x00000000009dab81 in instantiate_parameters (loop=0xf4f7c0, chrec=0x2aaaab2fd180) at /cvs/gcc/gcc/tree-scalar-evolution.c:2174 #7 0x000000000097e845 in vrp_visit_assignment (stmt=0x2aaaab37f870, output_p=0x7fffffffd730) at /cvs/gcc/gcc/tree-vrp.c:1544 #8 0x00000000004e4456 in simulate_stmt (stmt=0x2aaaab37f870) at /cvs/gcc/gcc/tree-ssa-propagate.c:301 #9 0x00000000004e4bb9 in ssa_propagate (visit_stmt=<value optimized out>, visit_phi=<value optimized out>) at /cvs/gcc/gcc/tree-ssa-propagate.c:424 #10 0x00000000009806b4 in execute_vrp () at /cvs/gcc/gcc/tree-vrp.c:3915 #11 0x000000000097077c in execute_one_pass (pass=0xd92860) at /cvs/gcc/gcc/passes.c:808 #12 0x00000000009708ac in execute_pass_list (pass=0xd92860) at /cvs/gcc/gcc/passes.c:840 #13 0x00000000009708be in execute_pass_list (pass=0xd8eac0) at /cvs/gcc/gcc/passes.c:841 #14 0x0000000000483135 in tree_rest_of_compilation (fndecl=0x2aaaab047500) at /cvs/gcc/gcc/tree-optimize.c:419 #15 0x000000000040bf4d in c_expand_body (fndecl=0x2aaaab047500) at /cvs/gcc/gcc/c-decl.c:6633 #16 0x00000000009c4a26 in cgraph_expand_function (node=0x2aaaab373160) at /cvs/gcc/gcc/cgraphunit.c:1037 #17 0x00000000009c6bbb in cgraph_optimize () at /cvs/gcc/gcc/cgraphunit.c:1103 #18 0x0000000000416123 in c_write_global_declarations () at /cvs/gcc/gcc/c-decl.c:7618 #19 0x00000000009425d6 in toplev_main (argc=<value optimized out>, argv=<value optimized out>) at /cvs/gcc/gcc/toplev.c:984 #20 0x00002aaaaabde54a in __libc_start_main () from /lib64/tls/libc.so.6 #21 0x000000000040265a in _start () at start.S:113 (gdb) pt type <integer_type 0x2aaaaadf86e0 long unsigned int sizes-gimplified asm_written public unsigned DI size <integer_cst 0x2aaaaadeac30 type <integer_type 0x2aaaaadf80b0 bit_size_type> constant invariant 64> unit size <integer_cst 0x2aaaaadeac60 type <integer_type 0x2aaaaadf8000 long unsigned int> constant invariant 8> align 64 symtab -1428224608 alias set -1 precision 64 min <integer_cst 0x2aaaaadead50 0> max <integer_cst 0x2aaaaadead20 18446744073709551615> pointer_to_this <pointer_type 0x2aaaab059160>> (gdb) pt op1 <integer_cst 0x2aaaab27ad80 type <integer_type 0x2aaaab075bb0> constant invariant 0> This bug has been introduced during the last 7 days. -- Summary: Segfault in fold_binary Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: aj at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: x86_64-linux-gnu GCC host triplet: x86_64-linux-gnu GCC target triplet: x86_64-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23511