Fix PR44768

From-SVN: r161947

1 files changed, 8 insertions, 4 deletions

diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 5b0596e..b39d4db 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -1252,8 +1252,8 @@ fini_vars_expansion (void)
   stack_vars_alloc = stack_vars_num = 0;
 }
 
-/* Make a fair guess for the size of the stack frame of the current
-   function.  This doesn't have to be exact, the result is only used
+/* Make a fair guess for the size of the stack frame of the decl
+   passed.  This doesn't have to be exact, the result is only used
    in the inline heuristics.  So we don't want to run the full stack
    var packing algorithm (which is quadratic in the number of stack
    vars).  Instead, we calculate the total size of all stack vars.
@@ -1261,12 +1261,15 @@ fini_vars_expansion (void)
    vars doesn't happen very often.  */
 
 HOST_WIDE_INT
-estimated_stack_frame_size (void)
+estimated_stack_frame_size (tree decl)
 {
   HOST_WIDE_INT size = 0;
   size_t i;
   tree var, outer_block = DECL_INITIAL (current_function_decl);
   unsigned ix;
+  tree old_cur_fun_decl = current_function_decl;
+  current_function_decl = decl;
+  push_cfun (DECL_STRUCT_FUNCTION (decl));
 
   init_vars_expansion ();
 
@@ -1287,7 +1290,8 @@ estimated_stack_frame_size (void)
       size += account_stack_vars ();
       fini_vars_expansion ();
     }
-
+  pop_cfun ();
+  current_function_decl = old_cur_fun_decl;
   return size;
 }