gcc/testsuite/gcc.target/nios2/r2-stio-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -mgpopt -march=r2" } */
   3
   4 /* The ldio/stio builtins must not use GP-relative addresses for
   5    small data objects in R2.  This is because the address offset field
   6    has been reduced to 12 bits in R2, and %gprel is a 16-bit relocation.  */
   7
   8 extern volatile unsigned int frob;
   9
  10 volatile unsigned int frob = 0;
  11
  12 void foo (unsigned int val)
  13 {
  14   __builtin_stwio (&frob, val);
  15 }
  16
  17 /* { dg-final { scan-assembler "stwio\\t" } } */
  18 /* { dg-final { scan-assembler-not "stwio\\t.*%gprel(frob)" } } */
  19