re PR lto/53195 (ICE seg fault in lto (in set_is_used (tp=Unhandled dwarf…

re PR lto/53195 (ICE seg fault in lto (in set_is_used (tp=Unhandled dwarf expression opcode 0xf3 ) at ../.././gcc/tree-flow-inline.h:567))

2012-05-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53195
	* tree-inline.c (setup_one_parameter): Properly add referenced
	vars from the parameters new known value.

From-SVN: r187235

gcc/ChangeLog

+2012-05-07  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/53195
+	* tree-inline.c (setup_one_parameter): Properly add referenced
+	vars from the parameters new known value.
+
 2012-05-07  Steven Bosscher  <steven@gcc.gnu.org>
 
 	* config/m68k/m68k.c (m68k_sched_branch_type): Remove.
@@ -5,8 +11,8 @@
 	(m68k_sched_md_init_global): Don't allocate it.
 	(m68k_sched_md_finish_global): Don't free it.
 	* config/m68k/m68k.h (m68k_sched_branch_type): Remove prototype.
-	* config/m68k/m68k.md: Set the type of insns using m68k_sched_branch_type
-	to bcc directly.
+	* config/m68k/m68k.md: Set the type of insns using
+	m68k_sched_branch_type to bcc directly.
 
 2012-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 

gcc/tree-inline.c

@@ -2608,6 +2608,17 @@ setup_one_parameter (copy_body_data *id, tree p, tree value, tree fn,
   /* Make gimplifier happy about this variable.  */
   DECL_SEEN_IN_BIND_EXPR_P (var) = 1;
 
+  /* We are eventually using the value - make sure all variables
+     referenced therein are properly recorded.  */
+  if (value
+      && gimple_in_ssa_p (cfun)
+      && TREE_CODE (value) == ADDR_EXPR)
+    {
+      tree base = get_base_address (TREE_OPERAND (value, 0));
+      if (base && TREE_CODE (base) == VAR_DECL)
+	add_referenced_var (base);
+    }
+
   /* If the parameter is never assigned to, has no SSA_NAMEs created,
      we would not need to create a new variable here at all, if it
      weren't for debug info.  Still, we can just use the argument