gcc/testsuite/gcc.dg/pr27528.c

   1 /* Check the warnings and errors generated for asm operands that aren't
   2    obviously constant but that are constrained to be constants.  */
   3 /* { dg-options "" } */
   4
   5 int bar (int);
   6 void
   7 foo (int *x, int y)
   8 {
   9   int constant = 0;
  10   asm ("# %0" :: "i" (x)); /* { dg-warning "probably doesn't match" } */
  11   /* { dg-error "impossible constraint" "" { target *-*-* } .-1 } */
  12
  13   asm ("# %0" :: "i" (bar (*x))); /* { dg-warning "probably doesn't match" } */
  14   /* { dg-error "impossible constraint" "" { target *-*-* } .-1 } */
  15
  16   asm ("# %0" :: "i" (*x + 0x11)); /* { dg-warning "probably doesn't match" } */
  17   /* { dg-error "impossible constraint" "" { target *-*-* } .-1 } */
  18
  19   asm ("# %0" :: "i" (constant)); /* { dg-warning "probably doesn't match" } */
  20   /* { dg-error "impossible constraint" "" { target *-*-* } .-1 } */
  21
  22   asm ("# %0" :: "i" (y * 0)); /* folded */
  23 }