g ++：没有AVX这样的指令 [英] g++: No Such Instruction with AVX

问题描述

当我编写一个程序时，我正在使用C ++编写程序（用于最新的Macbook pro，当然这支持AVX指令集），我得到了以下错误。我正在使用从Macports获得的最新版g ++。你有什么想法，我可以做什么来修复错误，而不会限制指令集可用于编译器？是否有任何特别的包，我应该尝试更新？

  g ++  -  mp-4.7 -std = c ++ 11  - Wall -Ofast -march = native -fno-rtti src / raw_to_json.cpp -o bin / raw_to_json.bin 
 /var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1831:no such instruction：`` vpxor％xmm0，％xmm0，％xmm0'
 /var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1847:no such instruction：`vmovdqa％xmm0，96（％rsp）'
 /var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1848:no such instruction：`vmovdqa％xmm0，112（％rsp）'
 / var / folders / 83 / tjczqmxn1y9166m642_rxdlw0000gn / T // cc0hIx0w.s：1849：no such instruction：`vmovdqa％xmm0，128（％rsp）'
 /var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1850:no such instruction：`vmovdqa％ xmm0,144（％rsp）'
 /var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1851:no such instruction：`vmovdqa％xmm0，160（％rsp）'
  

感谢您的帮助！

解决方案

修正了Conrado PLG回答他自己的问题的答案此处。总之，我必须做到以下几点：

1. 移动或以其他方式摆脱旧的为，位于 / opt / local / bin /../ local / libexec / as / x86_64 / as 。


2. 复制脚本Vincent Habchi，找到此处，至 / opt / local / bin /../local/libexec/as/ x86_64 / as 。


3. sudo chmod + x
   

请注意，由于调用汇编器需要通过shell脚本第一。

When I compiled a program I was writing in C++ (for the latest Macbook pro, which of course supports the AVX instruction set), I got the following errors. I am using the latest release of g++ obtained from Macports. Do you have any ideas as to what I can do to fix the error without restricting the instruction sets available to the compiler? Is there any package in particular that I should try to update?

g++-mp-4.7 -std=c++11 -Wall -Ofast -march=native -fno-rtti src/raw_to_json.cpp -o bin/raw_to_json.bin
/var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1831:no such instruction: `vpxor %xmm0, %xmm0,%xmm0'
/var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1847:no such instruction: `vmovdqa %xmm0, 96(%rsp)'
/var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1848:no such instruction: `vmovdqa %xmm0, 112(%rsp)'
/var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1849:no such instruction: `vmovdqa %xmm0, 128(%rsp)'
/var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1850:no such instruction: `vmovdqa %xmm0, 144(%rsp)'
/var/folders/83/tjczqmxn1y9166m642_rxdlw0000gn/T//cc0hIx0w.s:1851:no such instruction: `vmovdqa %xmm0, 160(%rsp)'

Thanks for the help!

解决方案

Fixed thanks to Conrado PLG's answer to his own question here. In short, I had to do the following:

1. Move or otherwise get rid of the old as, found at /opt/local/bin/../local/libexec/as/x86_64/as.
2. Copy the script by Vincent Habchi, found here, to /opt/local/bin/../local/libexec/as/x86_64/as.
3. sudo chmod +x the script.

Note that there may some performance degradation, due to the fact that calling the assembler requires going through a shell script first.

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