* cfgexpand.c (expand_debug_expr): Instead of generating
(mem (debug_implicit_ptr)) for MEM_REFs use COMPONENT_REF
etc. handling.
* g++.dg/debug/pr47283.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169057
138bc75d-0d04-0410-961f-
82ee72b054a4
+2011-01-20 Jakub Jelinek <jakub@redhat.com>
+
+ PR debug/47283
+ * cfgexpand.c (expand_debug_expr): Instead of generating
+ (mem (debug_implicit_ptr)) for MEM_REFs use COMPONENT_REF
+ etc. handling.
+
2011-01-20 Richard Guenther <rguenther@suse.de>
PR middle-end/47370
if (TREE_CODE (exp) == MEM_REF)
{
+ if (GET_CODE (op0) == DEBUG_IMPLICIT_PTR
+ || (GET_CODE (op0) == PLUS
+ && GET_CODE (XEXP (op0, 0)) == DEBUG_IMPLICIT_PTR))
+ /* (mem (debug_implicit_ptr)) might confuse aliasing.
+ Instead just use get_inner_reference. */
+ goto component_ref;
+
op1 = expand_debug_expr (TREE_OPERAND (exp, 1));
if (!op1 || !CONST_INT_P (op1))
return NULL;
return op0;
+ component_ref:
case ARRAY_REF:
case ARRAY_RANGE_REF:
case COMPONENT_REF:
2011-01-20 Jakub Jelinek <jakub@redhat.com>
+ PR debug/47283
+ * g++.dg/debug/pr47283.C: New test.
+
PR testsuite/47371
* gcc.target/i386/headmerge-1.c: Tighten up scan-assembler regex.
* gcc.target/i386/headmerge-2.c: Likewise.
--- /dev/null
+// PR debug/47283
+// { dg-do compile }
+
+template <typename T> inline const T &
+f1 (const T &a, const T &b)
+{
+ if (a < b)
+ return b;
+ return a;
+};
+
+struct A
+{
+ A (int w, int h) { a1 = w; }
+ A f2 (const A &) const;
+ int a1, a2;
+};
+
+inline A
+A::f2 (const A &x) const
+{
+ return A (f1 (a1, x.a1), f1 (a2, x.a2));
+};
+
+struct B
+{
+ A f3 () const;
+ void f4 (const A &) { b2 = 5 + b1; }
+ int b1, b2;
+};
+
+struct C
+{
+};
+
+struct D
+{
+ virtual C f5 (const C &) const;
+};
+
+struct E
+{
+ C f6 () const;
+ int f7 () const;
+ virtual B f8 (const C &) const;
+ A f9 () const;
+ virtual void f10 ();
+ struct F { D *h; } *d;
+};
+
+void
+E::f10 ()
+{
+ const C c = d->h->f5 (f6 ());
+ B b = f8 (c);
+ b.f4 (b.f3 ().f2 (f9 ()));
+ f7 ();
+}