gcc/testsuite/gcc.dg/20050503-1.c

   1 /* PR middle-end/21265
   2    Test whether tail call information is propagated through builtin
   3    expanders.  */
   4 /* { dg-do compile } */
   5 /* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && { ia32 && { ! nonpic } } } { "*" } { "" } } */
   6 /* { dg-options "-O2" } */
   7
   8 typedef __SIZE_TYPE__ size_t;
   9
  10 #define F(n, rettype, name, args, callargs) \
  11 extern rettype name args;                               \
  12 rettype test##n args                                    \
  13 {                                                       \
  14   return name callargs;                                 \
  15 }
  16 #define F1(n, rettype, name, t1, callargs) \
  17   F (n, rettype, name, (t1 a1), callargs)
  18 #define F2(n, rettype, name, t1, t2, callargs) \
  19   F (n, rettype, name, (t1 a1, t2 a2), callargs)
  20 #define F3(n, rettype, name, t1, t2, t3, callargs) \
  21   F (n, rettype, name, (t1 a1, t2 a2, t3 a3), callargs)
  22
  23 F3 (1a, void *, memcpy, void *, const void *, size_t, (a1, a2, a3))
  24 F3 (1b, void *, memcpy, void *, const void *, size_t, (a1, a2, 10))
  25 F3 (2a, void *, mempcpy, void *, const void *, size_t, (a1, a2, a3))
  26 F3 (2b, void *, mempcpy, void *, const void *, size_t, (a1, a2, 10))
  27 F3 (3a, void *, memmove, void *, const void *, size_t, (a1, a2, a3))
  28 F3 (3b, void *, memmove, void *, const void *, size_t, (a1, "abcdefghijklmno", a3))
  29 F3 (4a, void *, memset, void *, int, size_t, (a1, a2, a3))
  30 F3 (4b, void *, memset, void *, int, size_t, (a1, a2, 156))
  31 F3 (4c, void *, memset, void *, int, size_t, (a1, 0, a3))
  32 F3 (4d, void *, memset, void *, int, size_t, (a1, 0, 10000))
  33 F3 (5a, int, memcmp, const void *, const void *, size_t, (a1, a2, a3))
  34 F3 (5b, int, memcmp, const void *, const void *, size_t, (a1, "abcdefghijkl", a3))
  35 F2 (6, char *, strcpy, char *, const char *, (a1, a2))
  36 F2 (7, char *, stpcpy, char *, const char *, (a1, a2))
  37 F3 (8, char *, strncpy, char *, const char *, size_t, (a1, a2, a3))
  38 F3 (9, char *, stpncpy, char *, const char *, size_t, (a1, a2, a3))
  39 F2 (10, char *, strcat, char *, const char *, (a1, a2))
  40 F3 (11, char *, strncat, char *, const char *, size_t, (a1, a2, a3))
  41 F1 (12a, size_t, strlen, const char *, (a1))
  42 F1 (12b, size_t, strlen, const char *, ("foobar"))
  43 F2 (13a, int, strcmp, const char *, const char *, (a1, a2))
  44 F2 (13b, int, strcmp, const char *, const char *, (a1, "abcdefghijklm"))
  45 F3 (14a, int, strncmp, const char *, const char *, size_t, (a1, a2, a3))
  46 F3 (14b, int, strncmp, const char *, const char *, size_t, (a1, "abcdefghijklm", 10))
  47 F2 (15, char *, strchr, const char *, int, (a1, a2))
  48
  49 /* All the calls above should be tail call optimized on i?86/x86-64.  */
  50 /* { dg-final { scan-assembler-not "call" { target i?86-*-linux* i?86-*-gnu* x86_64-*-linux* } } } */