[PATCH] middle-end/115110 - Fix view_converted_memref_p

[PATCH] middle-end/115110 - Fix view_converted_memref_p

[Richard Biener]

view_converted_memref_p was checking the reference type against the
pointer type of the offset operand rather than its pointed-to type
which leads to all refs being subject to view-convert treatment
in get_alias_set causing numerous testsuite fails but with its
new uses from r15-512-g9b7cad5884f21c is also a wrong-code issue.

Bootstrap & regtest on x86_64-unknown-linux-gnu in progress.

	PR middle-end/115110
	* tree-ssa-alias.cc (view_converted_memref_p): Fix.
---
 gcc/tree-ssa-alias.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gcc/tree-ssa-alias.cc b/gcc/tree-ssa-alias.cc
index 9f5f69bcfad..d64d6d02f4a 100644
--- a/gcc/tree-ssa-alias.cc
+++ b/gcc/tree-ssa-alias.cc
@@ -2077,8 +2077,9 @@ view_converted_memref_p (tree base)
 {
   if (TREE_CODE (base) != MEM_REF && TREE_CODE (base) != TARGET_MEM_REF)
     return false;
-  return same_type_for_tbaa (TREE_TYPE (base),
-			     TREE_TYPE (TREE_OPERAND (base, 1))) != 1;
+  return (same_type_for_tbaa (TREE_TYPE (base),
+			      TREE_TYPE (TREE_TYPE (TREE_OPERAND (base, 1))))
+	  != 1);
 }
 
 /* Return true if an indirect reference based on *PTR1 constrained
-- 
2.35.3