Subversion Repositories openrisc

/* { dg-do compile } */
/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */
 
#include <stdlib.h>
 
#define N 3200
 
extern void abort (void);
typedef unsigned char T;
 
__attribute__ ((noinline)) void
testmax (const T *c, T init, T result)
{
  T lc[N], accum = init;
  int i;
 
  __builtin_memcpy (lc, c, sizeof(lc));
 
  for (i = 0; i < N; i++) {
    accum = accum < lc[i] ? lc[i] : accum;
  }
 
  if (accum != result)
    abort ();
}
 
__attribute__ ((noinline)) void
testmin (const T *c, T init, T result)
{
  T lc[N], accum = init;
  int i;
 
  __builtin_memcpy (lc, c, sizeof(lc));
 
  for (i = 0; i < N; i++) {
    accum = accum > lc[i] ? lc[i] : accum;
  }
 
  if (accum != result)
    abort ();
}
 
int main (void)
{ 
  static unsigned char A[N] = {
    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
    0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
  };
 
  static unsigned char B[N] = {
    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
    0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f
  };
 
  static unsigned char C[N] = {
    0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
    0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
  };
 
  int i;
 
  for (i=32; i<N; i++)
    {
      A[i]= 0x01;
      B[i]= 0x70;
      C[i]= 0xff;
    }
 
  testmin (A, 10, 1);
  testmin (B, 0x7f, 0x70);
  testmin (C, 0x7f, 0x09);
 
  testmax (A, 0, 0x7f);
  testmax (B, 0, 0x8f);
  testmax (C, 0, 0xff);
 
  return 0;
}
 
 
/* { dg-final { scan-tree-dump-times "Detected reduction" 2 "parloops" } } */
/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 3 "parloops" } } */
/* { dg-final { cleanup-tree-dump "parloops" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */