http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57081
Bug #: 57081 Summary: Segmentation fault in simple_iv (tree-scalar-evolution.c:3151) Classification: Unclassified Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassig...@gcc.gnu.org ReportedBy: antoine.balest...@gmail.com Using GCC 4.9.0 as of 20130426 : $ cat seg.c int a; void f(void) { int b; if(0) lbl: goto lbl; if(b) { int p = 0; goto lbl; } a = 0; while(b++); goto lbl; } $ xgcc -w -O2 seg.c seg.c: In function âfâ: seg.c:20:1: internal compiler error: Segmentation fault } ^ 0x90ba1f crash_signal ../../srcdir/gcc/toplev.c:333 0x9a90c4 simple_iv(loop*, loop*, tree_node*, affine_iv*, bool) ../../srcdir/gcc/tree-scalar-evolution.c:3151 0x86ec0f is_comparison_with_loop_invariant_p ../../srcdir/gcc/predict.c:1084 0x8725ac predict_loops ../../srcdir/gcc/predict.c:1552 0x8725ac tree_estimate_probability() ../../srcdir/gcc/predict.c:2342 0x872f10 tree_estimate_probability_driver ../../srcdir/gcc/predict.c:2379 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions.