tree-ssa-alias.c (indirect_ref_may_alias_decl_p, [...]): Revert accidental commits.
* tree-ssa-alias.c (indirect_ref_may_alias_decl_p, indirect_refs_may_alias_p): Revert accidental commits. From-SVN: r272358
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@ -1,5 +1,8 @@
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2019-06-16 Jan Hubicka <hubicka@ucw.cz>
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* tree-ssa-alias.c (indirect_ref_may_alias_decl_p,
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indirect_refs_may_alias_p): Revert accidental commits.
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* tree-ssa-alias.c (aliasing_component_refs_p): Watch for arrays
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at the end of structures.
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@ -1532,9 +1532,8 @@ indirect_ref_may_alias_decl_p (tree ref1 ATTRIBUTE_UNUSED, tree base1,
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&& same_type_for_tbaa (TREE_TYPE (base1), TREE_TYPE (dbase2)) == 1
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&& (TREE_CODE (TREE_TYPE (base1)) != ARRAY_TYPE
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|| (TYPE_SIZE (TREE_TYPE (base1))
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&& TREE_CODE (TYPE_SIZE (TREE_TYPE (base1))) == INTEGER_CST))
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&& !ranges_maybe_overlap_p (doffset1, max_size1, doffset2, max_size2))
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return false;
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&& TREE_CODE (TYPE_SIZE (TREE_TYPE (base1))) == INTEGER_CST)))
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return ranges_maybe_overlap_p (doffset1, max_size1, doffset2, max_size2);
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if (ref1 && ref2
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&& nonoverlapping_component_refs_p (ref1, ref2))
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@ -1614,9 +1613,8 @@ indirect_refs_may_alias_p (tree ref1 ATTRIBUTE_UNUSED, tree base1,
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{
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poly_offset_int moff1 = mem_ref_offset (base1) << LOG2_BITS_PER_UNIT;
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poly_offset_int moff2 = mem_ref_offset (base2) << LOG2_BITS_PER_UNIT;
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if (!ranges_maybe_overlap_p (offset1 + moff1, max_size1,
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offset2 + moff2, max_size2))
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return false;
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return ranges_maybe_overlap_p (offset1 + moff1, max_size1,
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offset2 + moff2, max_size2);
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}
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if (!ptr_derefs_may_alias_p (ptr1, ptr2))
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return false;
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@ -1655,9 +1653,8 @@ indirect_refs_may_alias_p (tree ref1 ATTRIBUTE_UNUSED, tree base1,
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/* But avoid treating arrays as "objects", instead assume they
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can overlap by an exact multiple of their element size.
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See gcc.dg/torture/alias-2.c. */
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&& TREE_CODE (TREE_TYPE (ptrtype1)) != ARRAY_TYPE
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&& !ranges_maybe_overlap_p (offset1, max_size1, offset2, max_size2))
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return false;
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&& TREE_CODE (TREE_TYPE (ptrtype1)) != ARRAY_TYPE)
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return ranges_maybe_overlap_p (offset1, max_size1, offset2, max_size2);
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if (ref1 && ref2
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&& nonoverlapping_component_refs_p (ref1, ref2))
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