gcc/testsuite/gcc.dg/inline-13.c

/* Verify basic C99 inline functionality.  */
/* { dg-do compile } */
/* { dg-options "-std=c99" } */
/* { dg-final { scan-assembler-not "dontgenerate" } } */
/* { dg-final { scan-assembler "func1" } } */
/* { dg-final { scan-assembler "func2" } } */
/* { dg-final { scan-assembler "func3" } } */
/* { dg-final { scan-assembler "func4" } } */
/* { dg-final { scan-assembler "func5" } } */
/* { dg-final { scan-assembler "func6" } } */
/* { dg-final { scan-assembler "func7" } } */
/* { dg-final { scan-assembler "func8" } } */
/* { dg-final { scan-assembler "func9" } } */

inline int dontgenerate1 (void)
{
  return 1;
}

inline int dontgenerate2 (void);
inline int dontgenerate2 (void)
{
  return 2;
}

inline int dontgenerate3 (void)
{
  return 3;
}
inline int dontgenerate3 (void);

extern inline int func1 (void) { return 1; }

extern inline int func2 (void);
inline int func2 (void) { return 2; }

inline int func3 (void) { return 3; }
extern inline int func3 (void);

inline int func4 (void);
extern inline int func4 (void) { return 4; }

extern inline int func5 (void) { return 5; }
inline int func5 (void);

extern int func6 (void);
inline int func6 (void) { return 6; }

inline int func7 (void) { return 7; }
extern int func7 (void);

inline int func8 (void);
extern int func8 (void) { return 8; }

extern int func9 (void) { return 9; }
inline int func9 (void);