gimplify.c (gimplify_modify_expr): Do not create a DECL_DEBUG_EXPR if the target…

gimplify.c (gimplify_modify_expr): Do not create a DECL_DEBUG_EXPR if the target doesn't belong to the current...

	* gimplify.c (gimplify_modify_expr): Do not create a DECL_DEBUG_EXPR if
	the target doesn't belong to the current function.

From-SVN: r224019

gcc/ChangeLog

+2015-06-02  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gimplify.c (gimplify_modify_expr): Do not create a DECL_DEBUG_EXPR if
+	the target doesn't belong to the current function.
+
 2015-06-02  Marek Polacek  <polacek@redhat.com>
 
 	PR middle-end/66345

gcc/gimplify.c

@@ -4707,12 +4707,14 @@ gimplify_modify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
     return gimplify_modify_expr_complex_part (expr_p, pre_p, want_value);
 
   /* Try to alleviate the effects of the gimplification creating artificial
-     temporaries (see for example is_gimple_reg_rhs) on the debug info.  */
+     temporaries (see for example is_gimple_reg_rhs) on the debug info, but
+     make sure not to create DECL_DEBUG_EXPR links across functions.  */
   if (!gimplify_ctxp->into_ssa
       && TREE_CODE (*from_p) == VAR_DECL
       && DECL_IGNORED_P (*from_p)
       && DECL_P (*to_p)
-      && !DECL_IGNORED_P (*to_p))
+      && !DECL_IGNORED_P (*to_p)
+      && decl_function_context (*to_p) == current_function_decl)
     {
       if (!DECL_NAME (*from_p) && DECL_NAME (*to_p))
 	DECL_NAME (*from_p)

gcc/testsuite/ChangeLog

+2015-06-02  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc.dg/vect/vec-scal-opt.c: Adjust regexp.
+
 2015-06-02  Uros Bizjak  <ubizjak@gmail.com>
 
 	* gcc.dg/vect/vect-outer-simd-1.c: Remove cleanup-tree-dump directive.

gcc/testsuite/gcc.dg/vect/vec-scal-opt.c

@@ -19,4 +19,4 @@ int main (int argc, char *argv[]) {
    return vidx(short, r1, 0);
 }
 
-/* { dg-final { scan-tree-dump-times ">> k.\[0-9_\]*" 1 "veclower21" } } */
+/* { dg-final { scan-tree-dump-times ">> _\[0-9\]*" 1 "veclower21" } } */