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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/50133] New: [4.7 Regression] ICE: SIGSEGV in vect_finish_stmt_generation (gimple.h:4821) with -ftree-vectorize -fno-tree-loop-im Date: Fri, 19 Aug 2011 21:58:00 -0000 [thread overview] Message-ID: <bug-50133-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50133 Bug #: 50133 Summary: [4.7 Regression] ICE: SIGSEGV in vect_finish_stmt_generation (gimple.h:4821) with -ftree-vectorize -fno-tree-loop-im Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: zsojka@seznam.cz Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 25057 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25057 testcase (gcc.dg/pr46184.c) Compiler output: $ gcc -O -ftree-vectorize -fno-tree-loop-im testcase.c ==6443== Invalid read of size 8 ==6443== at 0xB053E1: vect_finish_stmt_generation(gimple_statement_d*, gimple_statement_d*, gimple_stmt_iterator*) (gimple.h:4821) ==6443== by 0xB05C8E: vect_init_vector(gimple_statement_d*, tree_node*, tree_node*, gimple_stmt_iterator*) (tree-vect-stmts.c:1082) ==6443== by 0xB07625: vectorizable_load(gimple_statement_d*, gimple_stmt_iterator*, gimple_statement_d**, _slp_tree*, _slp_instance*) (tree-vect-stmts.c:4626) ==6443== by 0xB1268C: vect_transform_stmt(gimple_statement_d*, gimple_stmt_iterator*, bool*, _slp_tree*, _slp_instance*) (tree-vect-stmts.c:5197) ==6443== by 0xB2270B: vect_transform_loop(_loop_vec_info*) (tree-vect-loop.c:5332) ==6443== by 0xB2F678: vectorize_loops() (tree-vectorizer.c:205) ==6443== by 0x8A6046: execute_one_pass(opt_pass*) (passes.c:2063) ==6443== by 0x8A63B4: execute_pass_list(opt_pass*) (passes.c:2118) ==6443== by 0x8A63C6: execute_pass_list(opt_pass*) (passes.c:2119) ==6443== by 0x8A63C6: execute_pass_list(opt_pass*) (passes.c:2119) ==6443== by 0x9FE69D: tree_rest_of_compilation(tree_node*) (tree-optimize.c:420) ==6443== by 0x653A55: cgraph_expand_function(cgraph_node*) (cgraphunit.c:1797) ==6443== by 0x6557BA: cgraph_optimize() (cgraphunit.c:1856) ==6443== by 0x655E49: cgraph_finalize_compilation_unit() (cgraphunit.c:1310) ==6443== by 0x537367: c_write_global_declarations() (c-decl.c:9881) ==6443== by 0x99C191: toplev_main(int, char**) (toplev.c:564) ==6443== by 0x6734D2C: (below main) (in /lib64/libc-2.12.2.so) ==6443== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==6443== testcase.c: In function 'foo': testcase.c:4:1: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Tested revisions: r177889 - crash r177543 - crash r173150 - OK
next reply other threads:[~2011-08-19 21:38 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-08-19 21:58 zsojka at seznam dot cz [this message] 2011-08-19 23:05 ` [Bug tree-optimization/50133] " rguenth at gcc dot gnu.org 2011-08-21 7:56 ` irar at il dot ibm.com 2011-08-21 9:17 ` irar at il dot ibm.com 2011-08-21 18:09 ` jakub at gcc dot gnu.org 2011-08-22 9:40 ` jakub at gcc dot gnu.org 2011-08-22 10:28 ` jakub at gcc dot gnu.org 2011-08-22 15:12 ` jakub at gcc dot gnu.org 2011-08-23 9:58 ` jakub at gcc dot gnu.org
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