swar64-4x16b-pragma.c
1.06 KB
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////A: --has-swar
//C: -daiteq-swar-enable
//#include <stdio.h>
typedef unsigned long s4x16b __attribute__((subword(16)));
#define LEN 10
unsigned long data_a[LEN] = {1,2,3,4,5,6,7,8,9,10};
unsigned long data_b[LEN] = {10,20,30,40,50,60,70,80,90,100};
unsigned long data_z[LEN] = {0,0,0,0,0,0,0,0,0,0};
void do_4x16b_add(void)
{
// #pragma swar saturate
s4x16b *a = (s4x16b *)data_a;
s4x16b *b = (s4x16b *)data_b;
s4x16b *z = (s4x16b *)data_z;
for (int i=0;i<LEN;++i)
{
z[i] = a[i] + b[i];
}
}
void do_4x16b_add_2(void)
{
#pragma swar saturate
s4x16b *a = (s4x16b *)data_a;
s4x16b *b = (s4x16b *)data_b;
s4x16b *z = (s4x16b *)data_z;
z[1] = a[1] + b[1];
__builtin_swarctrl(5);
}
int main(void)
{
volatile unsigned long a;
//__builtin_swarctrl(0);
a = __builtin_swaraccum(0);
a = __builtin_swaraccum(1);
a = __builtin_swaraccum(2);
a = __builtin_swaraccum(3);
do_4x16b_add();
do_4x16b_add_2();
a = __builtin_swaraccum(0);
a = __builtin_swaraccum(1);
a = __builtin_swaraccum(2);
a = __builtin_swaraccum(3);
return 0;
}