Viewing file:  pr102483.c (1.32 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O2 -msse4.1 -ftree-vectorize -fdump-tree-optimized" } */
/* { dg-final { scan-tree-dump-times "\.REDUC_MIN" 2 "optimized" } } */
/* { dg-final { scan-tree-dump-times "\.REDUC_MAX" 2 "optimized" } } */
/* { dg-final { scan-tree-dump-times "\.REDUC_PLUS" 1 "optimized" } } */
char
__attribute__((noipa, optimize("Ofast"),target("sse4.1")))
reduce_add (char* p)
{
char sum = 0;
for (int i = 0; i != 4; i++)
sum += p[i];
return sum;
}
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) > (b) ? (b) : (a))
unsigned char
__attribute__((noipa, optimize("Ofast"),target("sse4.1")))
reduce_umax (unsigned char* p)
{
unsigned char sum = p[0];
for (int i = 0; i != 4; i++)
sum = MAX(sum, p[i]);
return sum;
}
unsigned char
__attribute__((noipa, optimize("Ofast"),target("sse4.1")))
reduce_umin (unsigned char* p)
{
unsigned char sum = p[0];
for (int i = 0; i != 4; i++)
sum = MIN(sum, p[i]);
return sum;
}
char
__attribute__((noipa, optimize("Ofast"),target("sse4.1")))
reduce_smax (char* p)
{
char sum = p[0];
for (int i = 0; i != 4; i++)
sum = MAX(sum, p[i]);
return sum;
}
char
__attribute__((noipa, optimize("Ofast"),target("sse4.1")))
reduce_smin (char* p)
{
char sum = p[0];
for (int i = 0; i != 4; i++)
sum = MIN(sum, p[i]);
return sum;
}
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