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Diffstat (limited to 'gcc/tree-vect-patterns.c')
| -rw-r--r-- | gcc/tree-vect-patterns.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c index 31e9e2a..c0fdde6 100644 --- a/gcc/tree-vect-patterns.c +++ b/gcc/tree-vect-patterns.c @@ -5110,6 +5110,9 @@ vect_mark_pattern_stmts (stmt_vec_info orig_stmt_info, gimple *pattern_stmt, for (gimple_stmt_iterator si = gsi_start (def_seq); !gsi_end_p (si); gsi_next (&si)) { + if (dump_enabled_p ()) + dump_printf_loc (MSG_NOTE, vect_location, + "extra pattern stmt: %G", gsi_stmt (si)); stmt_vec_info pattern_stmt_info = vect_init_pattern_stmt (gsi_stmt (si), orig_stmt_info, pattern_vectype); @@ -5169,10 +5172,13 @@ vect_mark_pattern_stmts (stmt_vec_info orig_stmt_info, gimple *pattern_stmt, found = true; break; } - if (found && s == pattern_stmt) - break; if (s == pattern_stmt) - gcc_unreachable (); + { + if (!found && dump_enabled_p ()) + dump_printf_loc (MSG_NOTE, vect_location, + "failed to update reduction index.\n"); + break; + } if (gsi_end_p (si)) s = pattern_stmt; else |