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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/54647] New: Segmentation fault in get_expr_value_id with -O2 Date: Thu, 20 Sep 2012 22:13:00 -0000 [thread overview] Message-ID: <bug-54647-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54647 Bug #: 54647 Summary: Segmentation fault in get_expr_value_id with -O2 Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: dcb314@hotmail.com Created attachment 28240 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28240 C++ source code I just tried to compile the package kdelibs3-3.5.10-39 on gcc-4.8 trunk dated 20120919 on an AMD x86_64 box. The compiler said render_table.cpp: In member function 'void khtml::RenderTable::splitColumn(int, int)': render_table.cpp:563:6: internal compiler error: Segmentation fault void RenderTable::splitColumn( int pos, int firstSpan ) ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Here is valgrind helping out with a stack backtrace ==27576== Invalid read of size 4 ==27576== at 0xB5BAC8: get_expr_value_id(pre_expr_d*) (tree-ssa-pre.c:615) ==27576== by 0xB6346A: find_or_generate_expression(basic_block_def*, pre_expr_d*, gimple_statement_d**, gimple_statement_d*) [clone .constprop.104] (tree-ssa-pre.c:2894) ==27576== by 0xB60282: create_expression_by_pieces(basic_block_def*, pre_expr_d*, gimple_statement_d**, gimple_statement_d*, tree_node*) [clone .constprop.103] (tree-ssa-pre.c:2995) ==27576== by 0xB606FD: insert_into_preds_of_block(basic_block_def*, unsigned int, vec_t<pre_expr_d*>*) (tree-ssa-pre.c:3234) ==27576== by 0xB61743: insert_aux(basic_block_def*) (tree-ssa-pre.c:3524) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== by 0xB61127: insert_aux(basic_block_def*) (tree-ssa-pre.c:3749) ==27576== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==27576== Preprocessed source code attached. Flag -O2 required.
next reply other threads:[~2012-09-20 22:13 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-09-20 22:13 dcb314 at hotmail dot com [this message] 2012-09-20 23:40 ` [Bug c++/54647] " markus at trippelsdorf dot de 2012-09-20 23:56 ` paolo.carlini at oracle dot com 2012-09-20 23:56 ` paolo.carlini at oracle dot com 2012-09-21 8:55 ` [Bug tree-optimization/54647] [4.8 Regression] " rguenth at gcc dot gnu.org 2012-09-21 9:46 ` rguenth at gcc dot gnu.org 2012-09-21 12:44 ` rguenth at gcc dot gnu.org 2012-09-21 12:46 ` rguenth at gcc dot gnu.org
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