gcc/testsuite/gcc.dg/pr43157.c

   1 /* { dg-do link } */
   2 /* { dg-require-effective-target lto } */
   3 /* { dg-require-linker-plugin "" } */
   4 /* { dg-options "-O1 -flto -fuse-linker-plugin" } */
   5
   6 #define LABEL3(pfx, x) # pfx x
   7 #define LABEL2(pfx, x) LABEL3(pfx, x)
   8 #define LABEL(x) LABEL2(__USER_LABEL_PREFIX__, x)
   9
  10 unsigned int factorial_ (unsigned int) __asm__ (LABEL ("factorial"));
  11
  12 unsigned int factorial (unsigned int i)
  13 {
  14   return i > 1 ? i * factorial_ (i - 1) : 1;
  15 }
  16
  17 int main (void)
  18 {
  19   return factorial (5);
  20 }