Viewing file:  minmax-1.c (1.22 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* { dg-do run } */
/* { dg-options "-fdump-tree-original" } */
/* Check that MIN-MAX and MAX-MIN combinations are folded. */
extern void abort (void);
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) > (b) ? (a) : (b))
int f1(int a, int b)
{
return MIN (MAX (a, b), b); /* == b */
}
int f2(int a, int b)
{
return MAX (MIN (a, b), b); /* == b */
}
int f3(int a, int b)
{
return MIN (MAX (b, a), b); /* == b */
}
int f4(int a, int b)
{
return MAX (MIN (b, a), b); /* == b */
}
int g1(int a, int b)
{
return MIN (a, MAX (a, b)); /* == a */
}
int g2(int a, int b)
{
return MAX (a, MIN (a, b)); /* == a */
}
int g3(int a, int b)
{
return MIN (a, MAX (b, a)); /* == a */
}
int g4(int a, int b)
{
return MAX (a, MIN (b, a)); /* == a */
}
int main(void)
{
if (f1 (1, 2) != 2)
abort ();
if (f2 (1, 2) != 2)
abort ();
if (f3 (1, 2) != 2)
abort ();
if (f4 (1, 2) != 2)
abort ();
if (g1 (1, 2) != 1)
abort ();
if (g2 (1, 2) != 1)
abort ();
if (g3 (1, 2) != 1)
abort ();
if (g4 (1, 2) != 1)
abort ();
return 0;
}
/* { dg-final { scan-tree-dump-times "MIN_EXPR" 0 "original"} } */
/* { dg-final { scan-tree-dump-times "MAX_EXPR" 0 "original"} } */
|
