Subversion Repositories openrisc_me

/* From PR rtl-optimization/19683.  On little-endian MIPS targets,

   reload would incorrectly inherit the high part of the multiplication

   result.  */

/* { dg-do run { target mips*-*-* } } */

extern void abort (void);

extern void exit (int);

#ifndef __mips16

#define REPEAT10(X, Y)                                  \

  X(Y##0); X(Y##1); X(Y##2); X(Y##3); X(Y##4);          \

  X(Y##5); X(Y##6); X(Y##7); X(Y##8); X(Y##9)

#define REPEAT30(X) REPEAT10 (X, 0); REPEAT10 (X, 1); REPEAT10 (X, 2)

#define IN(X) unsigned int x##X = ptr[0]

#define OUT(X) ptr[0] = x##X

union u { unsigned long long ll; unsigned int i[2]; };

unsigned int

foo (volatile unsigned int *ptr)

{

  union u u;

  int result;

  u.ll = (unsigned long long) ptr[0] * ptr[0];

  REPEAT30 (IN);

  REPEAT30 (OUT);

  asm ("#" : "=l" (result) : "l" (u.i[1]));

  return result;

}

int

main (void)

{

  unsigned int array[] = { 1000 * 1000 * 1000 };

  union u u;

  u.ll = (unsigned long long) array[0] * array[0];

  if (foo (array) != u.i[1])

    abort ();

  exit (0);

}

#else

int

main (void)

{

  exit (0);

}

#endif