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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-05-29 09:49:42 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-05-29 09:49:42 +0000 |
| commit | 2adb88139c8475e21d07dc4e7859d9df85767596 (patch) | |
| tree | 6c80b189fd0b9250df5581608770c18fb098718b /gcc/tree-dfa.c | |
| parent | 6471e33bce5eb81ad6c18de6fc8048f16fd77e56 (diff) | |
| download | gcc-2adb88139c8475e21d07dc4e7859d9df85767596.tar.gz | |
2009-05-29 Richard Guenther <rguenther@suse.de>
* tree-ssa-operands.c (get_expr_operands): Do not handle
INDIRECT_REFs in the handled-component case. Remove
unused get_ref_base_and_extent case.
* tree-dfa.c (get_ref_base_and_extent): Avoid calling
tree_low_cst and host_integerp where possible.
* tree-ssa-structalias.c (equiv_class_label_eq): Check hash
codes for equivalence.
* dce.c (find_call_stack_args): Avoid redundant bitmap queries.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@147973 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-dfa.c')
| -rw-r--r-- | gcc/tree-dfa.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c index d4a379c333c..4fecd01c423 100644 --- a/gcc/tree-dfa.c +++ b/gcc/tree-dfa.c @@ -750,7 +750,7 @@ get_ref_base_and_extent (tree exp, HOST_WIDE_INT *poffset, switch (TREE_CODE (exp)) { case BIT_FIELD_REF: - bit_offset += tree_low_cst (TREE_OPERAND (exp, 2), 0); + bit_offset += TREE_INT_CST_LOW (TREE_OPERAND (exp, 2)); break; case COMPONENT_REF: @@ -761,13 +761,14 @@ get_ref_base_and_extent (tree exp, HOST_WIDE_INT *poffset, if (TREE_CODE (TREE_TYPE (TREE_OPERAND (exp, 0))) == UNION_TYPE) seen_union = true; - if (this_offset && TREE_CODE (this_offset) == INTEGER_CST) + if (this_offset + && TREE_CODE (this_offset) == INTEGER_CST + && host_integerp (this_offset, 0)) { - HOST_WIDE_INT hthis_offset = tree_low_cst (this_offset, 0); - + HOST_WIDE_INT hthis_offset = TREE_INT_CST_LOW (this_offset); hthis_offset *= BITS_PER_UNIT; bit_offset += hthis_offset; - bit_offset += tree_low_cst (DECL_FIELD_BIT_OFFSET (field), 0); + bit_offset += TREE_INT_CST_LOW (DECL_FIELD_BIT_OFFSET (field)); } else { @@ -787,18 +788,20 @@ get_ref_base_and_extent (tree exp, HOST_WIDE_INT *poffset, case ARRAY_RANGE_REF: { tree index = TREE_OPERAND (exp, 1); - tree low_bound = array_ref_low_bound (exp); - tree unit_size = array_ref_element_size (exp); + tree low_bound, unit_size; /* If the resulting bit-offset is constant, track it. */ - if (host_integerp (index, 0) - && host_integerp (low_bound, 0) - && host_integerp (unit_size, 1)) + if (TREE_CODE (index) == INTEGER_CST + && host_integerp (index, 0) + && (low_bound = array_ref_low_bound (exp), + host_integerp (low_bound, 0)) + && (unit_size = array_ref_element_size (exp), + host_integerp (unit_size, 1))) { - HOST_WIDE_INT hindex = tree_low_cst (index, 0); + HOST_WIDE_INT hindex = TREE_INT_CST_LOW (index); - hindex -= tree_low_cst (low_bound, 0); - hindex *= tree_low_cst (unit_size, 1); + hindex -= TREE_INT_CST_LOW (low_bound); + hindex *= TREE_INT_CST_LOW (unit_size); hindex *= BITS_PER_UNIT; bit_offset += hindex; |