diff options
| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-07-03 13:37:07 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-07-03 13:37:07 +0000 |
| commit | 25f68d908ff41a912a9bacb88afba665dd59c2ff (patch) | |
| tree | 67ac693ded20cc4120dbf6e06c393b0918f0e88a /gcc/tree-vect-data-refs.c | |
| parent | bb64297941f34721c7d4e94e754b454086511cf9 (diff) | |
| download | gcc-25f68d908ff41a912a9bacb88afba665dd59c2ff.zip gcc-25f68d908ff41a912a9bacb88afba665dd59c2ff.tar.gz gcc-25f68d908ff41a912a9bacb88afba665dd59c2ff.tar.bz2 | |
Add a helper for getting the overall alignment of a DR
This combines the information from previous patches to give a guaranteed
alignment for the DR as a whole. This should be a bit safer than using
base_element_aligned, since that only really took the base into account
(not the init or offset).
2017-07-03 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* tree-data-ref.h (dr_alignment): Declare.
* tree-data-ref.c (dr_alignment): New function.
* tree-vectorizer.h (dataref_aux): Remove base_element_aligned.
* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Don't
set it.
* tree-vect-stmts.c (vectorizable_store): Use dr_alignment.
From-SVN: r249917
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 3db408c..907f35e 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -731,12 +731,6 @@ vect_compute_data_ref_alignment (struct data_reference *dr) unsigned int base_alignment = drb->base_alignment; unsigned int base_misalignment = drb->base_misalignment; unsigned HOST_WIDE_INT vector_alignment = TYPE_ALIGN_UNIT (vectype); - unsigned HOST_WIDE_INT element_alignment - = TYPE_ALIGN_UNIT (TREE_TYPE (vectype)); - - if (base_alignment >= element_alignment - && (base_misalignment & (element_alignment - 1)) == 0) - DR_VECT_AUX (dr)->base_element_aligned = true; if (drb->offset_alignment < vector_alignment || !step_preserves_misalignment_p @@ -797,7 +791,6 @@ vect_compute_data_ref_alignment (struct data_reference *dr) DR_VECT_AUX (dr)->base_decl = base; DR_VECT_AUX (dr)->base_misaligned = true; - DR_VECT_AUX (dr)->base_element_aligned = true; base_misalignment = 0; } unsigned int misalignment = (base_misalignment |