re PR middle-end/65003 (-fsection-anchors ICE)

	PR middle-end/65003
	* varasm.c (place_block_symbol): Assert that DECL_RTL of the
	ultimate alias is MEM with SYMBOL_REF satisfying
	SYMBOL_REF_HAS_BLOCK_INFO_P as its operand.  Don't pass the MEM
	to place_block_symbol, but instead pass the SYMBOL_REF operand of it.

	* g++.dg/opt/pr65003.C: New test.

From-SVN: r220625

gcc/ChangeLog

+2015-02-11  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/65003
+	* varasm.c (place_block_symbol): Assert that DECL_RTL of the
+	ultimate alias is MEM with SYMBOL_REF satisfying
+	SYMBOL_REF_HAS_BLOCK_INFO_P as its operand.  Don't pass the MEM
+	to place_block_symbol, but instead pass the SYMBOL_REF operand of it.
+
 2015-02-11  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* config/nvptx/mkoffload.c: Include "diagnostic.h" instead of

gcc/testsuite/ChangeLog

+2015-02-11  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/65003
+	* g++.dg/opt/pr65003.C: New test.
+
 2015-02-11  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* lib/target-supports.exp (check_effective_target_pie): Renamed

gcc/testsuite/g++.dg/opt/pr65003.C

+// PR middle-end/65003
+// { dg-do compile }
+// { dg-options "-O2" }
+// { dg-additional-options "-fpic" { target fpic } }
+
+struct A
+{
+  void operator= (A &);
+  A ();
+};
+struct B
+{
+  A b;
+};
+struct C
+{
+  virtual bool foo (int &, bool) const;
+};
+struct D : virtual C
+{
+  bool foo (int &, bool) const;
+  B e;
+};
+struct F : D
+{
+  F (int &, const int &, const A &);
+  bool foo (int &, bool) const;
+};
+bool D::foo (int &, bool) const {}
+F::F (int &, const int &, const A &) {}
+bool F::foo (int &, bool) const {}

gcc/varasm.c

@@ -7180,6 +7180,10 @@ place_block_symbol (rtx symbol)
 	{
 	  rtx target = DECL_RTL (snode->ultimate_alias_target ()->decl);
 
+	  gcc_assert (MEM_P (target)
+		      && GET_CODE (XEXP (target, 0)) == SYMBOL_REF
+		      && SYMBOL_REF_HAS_BLOCK_INFO_P (XEXP (target, 0)));
+	  target = XEXP (target, 0);
 	  place_block_symbol (target);
 	  SYMBOL_REF_BLOCK_OFFSET (symbol) = SYMBOL_REF_BLOCK_OFFSET (target);
 	  return;