C++ 调用 always_inline '__m128i _mm_cvtepu8_epi32(__m128i)'时内联失败：目标特定选项不匹配 _mm_cvtepu8_epi32 (__m128i __X)
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inlining failed in call to always_inline '__m128i _mm_cvtepu8_epi32(__m128i)': target specific option mismatch _mm_cvtepu8_epi32 (__m128i __X)
提问by ttsesm
I am trying to compile this projectfrom github which is implemented in C++ with SIMD intrinsic (SSE4.1). The project in github is given as a Visual Studio solution, but I am trying to port it in Qtcreator with cmake. While I am trying to compile it I get the following error:
我正在尝试从 github编译这个项目，它是用 C++ 实现的，带有 SIMD 内在（SSE4.1）。github 中的项目是作为 Visual Studio 解决方案提供的，但我正在尝试使用 cmake 将其移植到 Qtcreator 中。当我尝试编译它时，我收到以下错误：
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.3.0/include/smmintrin.h:520:1: error: inlining failed in call to always_inline '__m128i _mm_cvtepu8_epi32(__m128i)': target specific option mismatch
_mm_cvtepu8_epi32 (__m128i __X)
which I am sure it has to do with the SSE optimization part, but since I am not that familiar with this subject I do not really know what it means and how I can solve it and in the net that I searched I couldn't really get something useful. The code that gives the following problem is the following:
我确定这与 SSE 优化部分有关，但是由于我对这个主题不太熟悉，因此我真的不知道它的含义以及如何解决它，并且在我搜索的网络中我真的无法解决得到一些有用的东西。出现以下问题的代码如下：
static void cvt8u32f(const Mat& src, Mat& dest, const float amp)
{
const int imsize = src.size().area()/8;
const int nn = src.size().area()- imsize*8 ;
uchar* s = (uchar*)src.ptr(0);
float* d = dest.ptr<float>(0);
const __m128 mamp = _mm_set_ps1(amp);
const __m128i zero = _mm_setzero_si128();
for(int i=imsize;i--;)
{
__m128i s1 = _mm_loadl_epi64((__m128i*)s);
_mm_store_ps(d,_mm_mul_ps(mamp,_mm_cvtepi32_ps(_mm_cvtepu8_epi32(s1))));
_mm_store_ps(d+4,_mm_mul_ps(mamp,_mm_cvtepi32_ps(_mm_cvtepu8_epi32(_mm_srli_si128(s1,4)))));
s+=8;
d+=8;
}
for(int i=0;i<nn;i++)
{
*d = (float)*s * amp;
s++,d++;
}
}
can someone explain me what is the issue and what I am missing. Thanks in advance.
有人可以向我解释是什么问题以及我缺少什么。提前致谢。
回答by Olga
add in file.pro: QMAKE_CXXFLAGS +=-msse3
在 file.pro 中添加：QMAKE_CXXFLAGS +=-msse3
