diff options
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 058e4a4..d3281e4 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -270,8 +270,9 @@ vect_determine_vectorization_factor (loop_vec_info loop_vinfo) gcc_assert (stmt_info); /* Skip stmts which do not need to be vectorized. */ - if (!STMT_VINFO_RELEVANT_P (stmt_info) - && !STMT_VINFO_LIVE_P (stmt_info)) + if ((!STMT_VINFO_RELEVANT_P (stmt_info) + && !STMT_VINFO_LIVE_P (stmt_info)) + || gimple_clobber_p (stmt)) { if (STMT_VINFO_IN_PATTERN_P (stmt_info) && (pattern_stmt = STMT_VINFO_RELATED_STMT (stmt_info)) @@ -1431,7 +1432,8 @@ vect_analyze_loop_operations (loop_vec_info loop_vinfo, bool slp) for (si = gsi_start_bb (bb); !gsi_end_p (si); gsi_next (&si)) { gimple stmt = gsi_stmt (si); - if (!vect_analyze_stmt (stmt, &need_to_vectorize, NULL)) + if (!gimple_clobber_p (stmt) + && !vect_analyze_stmt (stmt, &need_to_vectorize, NULL)) return false; } } /* bbs */ @@ -5595,7 +5597,17 @@ vect_transform_loop (loop_vec_info loop_vinfo) if (transform_pattern_stmt) stmt = pattern_stmt; else - stmt = gsi_stmt (si); + { + stmt = gsi_stmt (si); + /* During vectorization remove existing clobber stmts. */ + if (gimple_clobber_p (stmt)) + { + unlink_stmt_vdef (stmt); + gsi_remove (&si, true); + release_defs (stmt); + continue; + } + } if (dump_enabled_p ()) { |