gcc-4_9/gcc/testsuite/gcc.target/nios2/nios2-cache-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -mno-cache-volatile" } */
   3 /* { dg-final { scan-assembler "ldwio" } } */
   4 /* { dg-final { scan-assembler "stwio" } } */
   5
   6 /* Make sure -mno-cache-volatile generates I/O variants of the load and
   7    stores to foo.  */
   8
   9 extern volatile int foo;
  10
  11 int
  12 read_foo (void)
  13 {
  14   return foo;
  15 }
  16
  17 void
  18 write_foo (int x)
  19 {
  20   foo = x;
  21 }