[Bug target/9383] [SYSV] stack frame always made for nested functions

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-11-27 05:37 -------
This is because g1 is allocated space on the stack as a result of the following
code in expand_function_start.  If a function has local variables (including
hidden ones like this one) then it needs a stack frame.  Other ABIs can create
leaf functions having local vars without necessarily creating a stack frame.

  /* If function gets a static chain arg, store it in the stack frame.
     Do this first, so it gets the first stack slot offset.  */
  if (current_function_needs_context)
    {
      last_ptr = assign_stack_local (Pmode, GET_MODE_SIZE (Pmode), 0);


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
            Summary|[SYSV] -fomit-frame-pointer |[SYSV] stack frame always
                   |has no effect on nested     |made for nested functions
                   |functions                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9383