gcc/testsuite/gcc.dg/torture/pr32897.c

   1 /* { dg-options "-G0" { target mips*-*-* } } */
   2
   3 volatile int g[32];
   4 long long gll;
   5 double gd;
   6
   7 #define MULTI(X) \
   8         X( 1), X( 2), X( 3), X( 4), X( 5), X( 6), X( 7), X( 8), X( 9), X(10), \
   9         X(11), X(12), X(13), X(14), X(15), X(16), X(17), X(18), X(19), X(20), \
  10         X(21), X(22), X(23), X(24), X(25), X(26), X(27), X(28), X(29), X(30)
  11
  12 #define DECLARE(INDEX) x##INDEX
  13 #define COPY_IN(INDEX) x##INDEX = g[INDEX]
  14 #define COPY_OUT(INDEX) g[INDEX] = x##INDEX
  15
  16 void
  17 test (int n)
  18 {
  19   union { long long l; double d; } u = { 0x12345678 };
  20   gll = u.l;
  21   int MULTI (DECLARE);
  22   MULTI (COPY_IN);
  23   MULTI (COPY_OUT);
  24   MULTI (COPY_OUT);
  25   MULTI (COPY_OUT);
  26   gd = u.d;
  27 }