avx_开发者

How can I exchange the low 128 bits and high 128 bits in a 256 bit AVX (YMM) register

I am porting SSE SIMD code to use the 256 bit AVX extensions and cannot seem to find any instruction that will blend/shuffle/move the high 128 bits and the low 128 bits.[详细]

2023-03-30 21:40 分类：问答

Reference manual/tutorial for x86 SIMD intrinsics? [closed]

Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-03-23 17:58 分类：问答

Unexpected result from AVX _m256_unpack*_ps unpack intrinsic

I\'m attempting to use the AVX intrinsic unpack instructions _m256_unpacklo_ps and _m256_unpackhi_ps to interleave 16 float values.The results I\'m getting are strange, either because I\'m not underst[详细]

2023-03-20 08:30 分类：问答

Overloading conflict with vector types m128, m256 in GCC

I\'ve started playing around with AVX instructions on the new Intel\'s Sandy Bridge processor. I\'m using GCC 4.5.2, TDM-GCC 64bit build of MinGW64.[详细]

2023-03-04 06:36 分类：问答

How to force gcc to use all SSE (or AVX) registers?

I\'m trying to write some computationally intensive code for Windows x64 target, with SSE or the new AVX instructions, compiling in GCC 4.5.2 and 4.6.1, MinGW64 (TDM GCC build, and some custom build).[详细]

2023-03-04 05:20 分类：问答

Can you use the the AVX instructions with an i5 2600K if your motherboard doesn't include a video card?

From everything I\'ve read, the i5 2500K processor disables it\'s integrated graphics if it detects an external GPU.开发者_Go百科I\'ve got a motherboard that doesn\'t have an integrated video port so[详细]

2023-03-01 01:13 分类：问答

Does Xcode 4 have support for AVX?

Before I spend time and money downloading Xcode 4, can开发者_运维知识库 anyone tell me whether it comes with a version of gcc (or any other compiler, e.g. LLVM) which supports the AVX instruction set[详细]

2023-02-15 19:07 分类：问答

Intel AVX intrinsics: any compatibility library out?

Are there any Intel AVX intrinsics library out? I\'m looking for something similar as \'sse2mmx.h\' header which fall-backs to MMX intrinsics if SSE2 integer intrinsics are not available on compile ti[详细]

2022-12-28 06:40 分类：问答

Which assemblers currently support the AVX instruction set?

I\'d like to start and play with some AVX (advanced vector extension) instructions. I know Intel provides an emulator to test software containing these instructions (see this question), but since I do[详细]

2022-12-11 06:24 分类：问答