diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 3 |
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e5aa7c7..d2a2953 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2016-07-27 Richard Biener <rguenther@suse.de> + PR tree-optimization/72517 + * tree-vect-data-refs.c (vect_analyze_data_ref_dependences): + Revert change to not compute read-read dependences. + +2016-07-27 Richard Biener <rguenther@suse.de> + * predict.c (set_even_probabilities): Make nedges unsigned. 2016-07-27 Martin Liska <mliska@suse.cz> diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 9a5408e..e908c86 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -473,9 +473,10 @@ vect_analyze_data_ref_dependences (loop_vec_info loop_vinfo, int *max_vf) .create (LOOP_VINFO_DATAREFS (loop_vinfo).length () * LOOP_VINFO_DATAREFS (loop_vinfo).length ()); LOOP_VINFO_NO_DATA_DEPENDENCIES (loop_vinfo) = true; + /* We need read-read dependences to compute STMT_VINFO_SAME_ALIGN_REFS. */ if (!compute_all_dependences (LOOP_VINFO_DATAREFS (loop_vinfo), &LOOP_VINFO_DDRS (loop_vinfo), - LOOP_VINFO_LOOP_NEST (loop_vinfo), false)) + LOOP_VINFO_LOOP_NEST (loop_vinfo), true)) return false; FOR_EACH_VEC_ELT (LOOP_VINFO_DDRS (loop_vinfo), i, ddr) |