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-rw-r--r--gcc/tree-ssa-structalias.c23
1 files changed, 2 insertions, 21 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index 70a9d32..31ab38f 100644
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -2630,25 +2630,6 @@ bitpos_of_field (const tree fdecl)
}
-/* Return true if an access to [ACCESSPOS, ACCESSSIZE]
- overlaps with a field at [FIELDPOS, FIELDSIZE] */
-
-static bool
-offset_overlaps_with_access (const unsigned HOST_WIDE_INT fieldpos,
- const unsigned HOST_WIDE_INT fieldsize,
- const unsigned HOST_WIDE_INT accesspos,
- const unsigned HOST_WIDE_INT accesssize)
-{
- if (fieldpos == accesspos && fieldsize == accesssize)
- return true;
- if (accesspos >= fieldpos && accesspos < (fieldpos + fieldsize))
- return true;
- if (accesspos < fieldpos && (accesspos + accesssize > fieldpos))
- return true;
-
- return false;
-}
-
/* Given a COMPONENT_REF T, return the constraint_expr for it. */
static void
@@ -2713,8 +2694,8 @@ get_constraint_for_component_ref (tree t, VEC(ce_s, heap) **results)
varinfo_t curr;
for (curr = get_varinfo (result->var); curr; curr = curr->next)
{
- if (offset_overlaps_with_access (curr->offset, curr->size,
- result->offset, bitmaxsize))
+ if (ranges_overlap_p (curr->offset, curr->size,
+ result->offset, bitmaxsize))
{
result->var = curr->id;
break;