sibcall2.c

来自「linux下的gcc编译器」· C语言 代码 · 共 20 行

// Build don't link:
// Special g++ Options: -O2 -foptimize-sibling-calls -fno-exceptions

struct X
{
  const char *c() const { return b; };
  char *b;
};
extern "C" int f (const char *);
struct A
{
   X x;
   void y();
};
void A::y()
{
  const char *const a[] = { x.c() };
  f (a[0]);
}