diff options
Diffstat (limited to 'gcc/tree-vect-transform.c')
| -rw-r--r-- | gcc/tree-vect-transform.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/gcc/tree-vect-transform.c b/gcc/tree-vect-transform.c index 2de9ce6..cdd3acf 100644 --- a/gcc/tree-vect-transform.c +++ b/gcc/tree-vect-transform.c @@ -926,17 +926,12 @@ vect_create_epilog_for_reduction (tree vect_def, tree stmt, tree reduction_op, int vec_size_in_bits = tree_low_cst (TYPE_SIZE (vectype), 1); tree vec_temp; - /* The result of the reduction is expected to be at the LSB bits - of the vector. For big-endian targets this means at the right - end of the vector. For little-endian targets this means at the - left end of the vector. */ - - if (BITS_BIG_ENDIAN - && vec_shr_optab->handlers[mode].insn_code != CODE_FOR_nothing) + /* The result of the reduction is expected to be at the least + significant bits of the vector. This is merely convention, + as it's the extraction later that really matters, and that + is also under our control. */ + if (vec_shr_optab->handlers[mode].insn_code != CODE_FOR_nothing) shift_code = VEC_RSHIFT_EXPR; - else if (!BITS_BIG_ENDIAN - && vec_shl_optab->handlers[mode].insn_code != CODE_FOR_nothing) - shift_code = VEC_LSHIFT_EXPR; else have_whole_vector_shift = false; |