我正在尝试使用 SSE 内在函数。我制作了一个测试程序,只需将两个向量与四个 16 位元素相加。
#include <xmmintrin.h>
#include <iostream>
using namespace std;
void test_vec_add(){
const int length = 4;
float product[128*4] __attribute__ ((aligned(16)));
_m128 x = _mm_set_ps(1.0f,2.0f,3.0f,4.0f);
_m128 y = _mm_set_ps(1.0f,2.0f,3.0f,4.0f);
_m128 z = _mm_add_ps(x,y);
_mm_store_ps(product,z);
}
int main(){
test_vec_add();
}
我正在编译这段代码
g++ -msse3 test_sse.cpp
但是,我收到以下并发症错误
test_sse.cpp: In function ‘void test_vec_add()’:
test_sse.cpp:7:3: error: ‘_m128’ was not declared in this scope
test_sse.cpp:7:9: error: expected ‘;’ before ‘x’
test_sse.cpp:8:9: error: expected ‘;’ before ‘y’
test_sse.cpp:9:9: error: expected ‘;’ before ‘z’
test_sse.cpp:10:24: error: ‘z’ was not declared in this scope
test_sse.cpp: In function ‘int main()’:
test_sse.cpp:15:20: error: ‘test_vec_add’ was not declared in this scope
这可能是一个非常愚蠢的错误,但我无法确定它在哪里。任何帮助将不胜感激。