re PR middle-end/50754 (ICE in expand_debug_expr, at cfgexpand.c:3341)

	PR middle-end/50754
	* cfgexpand.c (expand_debug_expr): Handle WIDEN_LSHIFT_EXPR, ignore
	VEC_PERM_EXPR.

From-SVN: r180201

gcc/ChangeLog

+2011-10-19  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/50754
+	* cfgexpand.c (expand_debug_expr): Handle WIDEN_LSHIFT_EXPR, ignore
+	VEC_PERM_EXPR.
+
 2011-10-19  Bernd Schmidt  <bernds@codesourcery.com>
 
 	* regrename.h: New file.

gcc/cfgexpand.c

@@ -3267,6 +3267,7 @@ expand_debug_expr (tree exp)
     case VEC_WIDEN_MULT_LO_EXPR:
     case VEC_WIDEN_LSHIFT_HI_EXPR:
     case VEC_WIDEN_LSHIFT_LO_EXPR:
+    case VEC_PERM_EXPR:
       return NULL;
 
    /* Misc codes.  */
@@ -3321,6 +3322,7 @@ expand_debug_expr (tree exp)
       return NULL;
 
     case WIDEN_SUM_EXPR:
+    case WIDEN_LSHIFT_EXPR:
       if (SCALAR_INT_MODE_P (GET_MODE (op0))
 	  && SCALAR_INT_MODE_P (mode))
 	{
@@ -3329,7 +3331,8 @@ expand_debug_expr (tree exp)
 									  0)))
 				  ? ZERO_EXTEND : SIGN_EXTEND, mode, op0,
 				  inner_mode);
-	  return simplify_gen_binary (PLUS, mode, op0, op1);
+	  return simplify_gen_binary (TREE_CODE (exp) == WIDEN_LSHIFT_EXPR
+				      ? ASHIFT : PLUS, mode, op0, op1);
 	}
       return NULL;