From 32aac5bd94a9a9787bef9b5d8e072a6c5ded911e Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Sun, 16 Jun 2019 22:22:59 +0200 Subject: [PATCH] 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 --- gcc/ChangeLog | 3 +++ gcc/tree-ssa-alias.c | 15 ++++++--------- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 05c18aa..f75d8d0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2019-06-16 Jan Hubicka + * tree-ssa-alias.c (indirect_ref_may_alias_decl_p, + indirect_refs_may_alias_p): Revert accidental commits. + * tree-ssa-alias.c (aliasing_component_refs_p): Watch for arrays at the end of structures. diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 52f9270..b9cdc85 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -1532,9 +1532,8 @@ indirect_ref_may_alias_decl_p (tree ref1 ATTRIBUTE_UNUSED, tree base1, && same_type_for_tbaa (TREE_TYPE (base1), TREE_TYPE (dbase2)) == 1 && (TREE_CODE (TREE_TYPE (base1)) != ARRAY_TYPE || (TYPE_SIZE (TREE_TYPE (base1)) - && TREE_CODE (TYPE_SIZE (TREE_TYPE (base1))) == INTEGER_CST)) - && !ranges_maybe_overlap_p (doffset1, max_size1, doffset2, max_size2)) - return false; + && TREE_CODE (TYPE_SIZE (TREE_TYPE (base1))) == INTEGER_CST))) + return ranges_maybe_overlap_p (doffset1, max_size1, doffset2, max_size2); if (ref1 && ref2 && nonoverlapping_component_refs_p (ref1, ref2)) @@ -1614,9 +1613,8 @@ indirect_refs_may_alias_p (tree ref1 ATTRIBUTE_UNUSED, tree base1, { poly_offset_int moff1 = mem_ref_offset (base1) << LOG2_BITS_PER_UNIT; poly_offset_int moff2 = mem_ref_offset (base2) << LOG2_BITS_PER_UNIT; - if (!ranges_maybe_overlap_p (offset1 + moff1, max_size1, - offset2 + moff2, max_size2)) - return false; + return ranges_maybe_overlap_p (offset1 + moff1, max_size1, + offset2 + moff2, max_size2); } if (!ptr_derefs_may_alias_p (ptr1, ptr2)) return false; @@ -1655,9 +1653,8 @@ indirect_refs_may_alias_p (tree ref1 ATTRIBUTE_UNUSED, tree base1, /* But avoid treating arrays as "objects", instead assume they can overlap by an exact multiple of their element size. See gcc.dg/torture/alias-2.c. */ - && TREE_CODE (TREE_TYPE (ptrtype1)) != ARRAY_TYPE - && !ranges_maybe_overlap_p (offset1, max_size1, offset2, max_size2)) - return false; + && TREE_CODE (TREE_TYPE (ptrtype1)) != ARRAY_TYPE) + return ranges_maybe_overlap_p (offset1, max_size1, offset2, max_size2); if (ref1 && ref2 && nonoverlapping_component_refs_p (ref1, ref2)) -- 2.7.4