diff options
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 37c7daa..995d143 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -7234,6 +7234,14 @@ vectorizable_reduction (loop_vec_info loop_vinfo, dump_printf (MSG_NOTE, "proceeding using word mode.\n"); } + if (vect_emulated_vector_p (vectype_in) + && !vect_can_vectorize_without_simd_p (code)) + { + if (dump_enabled_p ()) + dump_printf (MSG_NOTE, "using word mode not possible.\n"); + return false; + } + /* lane-reducing operations have to go through vect_transform_reduction. For the other cases try without the single cycle optimization. */ if (!ok) @@ -7936,6 +7944,16 @@ vectorizable_phi (vec_info *, return true; } +/* Return true if VECTYPE represents a vector that requires lowering + by the vector lowering pass. */ + +bool +vect_emulated_vector_p (tree vectype) +{ + return (!VECTOR_MODE_P (TYPE_MODE (vectype)) + && (!VECTOR_BOOLEAN_TYPE_P (vectype) + || TYPE_PRECISION (TREE_TYPE (vectype)) != 1)); +} /* Return true if we can emulate CODE on an integer mode representation of a vector. */ |