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| author | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-03 15:48:56 +0000 |
|---|---|---|
| committer | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-03 15:48:56 +0000 |
| commit | ceea063b697987925bcb8ae8e1bedd5e5580a55f (patch) | |
| tree | e8950dc74bb16dd5c134d58dd1c869b0d3b374f9 /gcc/tree-sra.c | |
| parent | 26df34fa5d08f1fd9f50bf4ea8af50f8d193a1a0 (diff) | |
| download | gcc-ceea063b697987925bcb8ae8e1bedd5e5580a55f.tar.gz | |
2012-05-03 Martin Jambor <mjambor@suse.cz>
* builtins.c (get_object_alignment_1): Return whether we can determine
the alignment or conservatively assume byte alignment. Return the
alignment by reference. Use get_pointer_alignment_1 for dereference
alignment.
(get_pointer_alignment_1): Return whether we can determine the
alignment or conservatively assume byte alignment. Return the
alignment by reference. Use get_ptr_info_alignment to get SSA name
alignment.
(get_object_alignment): Update call to get_object_alignment_1.
(get_object_or_type_alignment): Likewise, fall back to type alignment
only when it returned false.
(get_pointer_alignment): Update call to get_pointer_alignment_1.
* fold-const.c (get_pointer_modulus_and_residue): Update call to
get_object_alignment_1.
* ipa-prop.c (ipa_modify_call_arguments): Update call to
get_pointer_alignment_1.
* tree-sra.c (build_ref_for_offset): Likewise, fall back to the type
of MEM_REF or TARGET_MEM_REF only when it returns false.
* tree-ssa-ccp.c (get_value_from_alignment): Update call to
get_object_alignment_1.
(ccp_finalize): Use set_ptr_info_alignment.
* tree.h (get_object_alignment_1): Update declaration.
(get_pointer_alignment_1): Likewise.
* gimple-pretty-print.c (dump_gimple_phi): Use get_ptr_info_alignment.
(dump_gimple_stmt): Likewise.
* tree-flow.h (ptr_info_def): Updated comments of fields align and
misalign.
(get_ptr_info_alignment): Declared.
(mark_ptr_info_alignment_unknown): Likewise.
(set_ptr_info_alignment): Likewise.
(adjust_ptr_info_misalignment): Likewise.
* tree-ssa-address.c (copy_ref_info): Use new access functions to get
and set alignment of SSA names.
* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Call
mark_ptr_info_alignment_unknown.
* tree-ssanames.c (get_ptr_info_alignment): New function.
(mark_ptr_info_alignment_unknown): Likewise.
(set_ptr_info_alignment): Likewise.
(adjust_ptr_info_misalignment): Likewise.
(get_ptr_info): Call mark_ptr_info_alignment_unknown.
* tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
Likewise.
(bump_vector_ptr): Likewise.
* tree-vect-stmts.c (create_array_ref): Use set_ptr_info_alignment.
(vectorizable_store): Likewise.
(vectorizable_load): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@187101 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-sra.c')
| -rw-r--r-- | gcc/tree-sra.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c index de99b305e3c..3f84f6b22fb 100644 --- a/gcc/tree-sra.c +++ b/gcc/tree-sra.c @@ -1472,11 +1472,13 @@ build_ref_for_offset (location_t loc, tree base, HOST_WIDE_INT offset, by looking at the access mode. That would constrain the alignment of base + base_offset which we would need to adjust according to offset. */ - align = get_pointer_alignment_1 (base, &misalign); - if (misalign == 0 - && (TREE_CODE (prev_base) == MEM_REF - || TREE_CODE (prev_base) == TARGET_MEM_REF)) - align = MAX (align, TYPE_ALIGN (TREE_TYPE (prev_base))); + if (!get_pointer_alignment_1 (base, &align, &misalign)) + { + gcc_assert (misalign == 0); + if (TREE_CODE (prev_base) == MEM_REF + || TREE_CODE (prev_base) == TARGET_MEM_REF) + align = TYPE_ALIGN (TREE_TYPE (prev_base)); + } misalign += (double_int_sext (tree_to_double_int (off), TYPE_PRECISION (TREE_TYPE (off))).low * BITS_PER_UNIT); |