Automatic accessor function inlining

[LRN <lrn1986@xxxxxxxxx>]

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file1.c:
static int _foobar;
int get_foobar () { return _foobar; }

file1.h:
int get_foobar ();

file2.c:
#include <stdio.h>
#include "file1.h"
int main (int argc, char **argv)
{
  int x = get_foobar ();
  printf ("x = %d\n", x);
  return 0;
}

Question: will gcc inline get_foobar()?
Consider this version instead:

file1.c:
int _foobar;

file1.h:
extern int _foobar;

file2.c:
#include <stdio.h>
#include "file1.h"
int main (int argc, char **argv)
{
  int x = _foobar;
  printf ("x = %d\n", x);
  return 0;
}

Will it be faster than the one with an accessor function?
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