What are reasons for -march=native to be detrimental
Mar 4, 2021 · 7 There are plenty of reasons why a code can be slower with -march=native, although this is quite exceptional. That being said, in your specific context, one possible …
How to specify -march=native using pragmas (or otherwise) in gcc
How to specify -march=native using pragmas (or otherwise) in gcc Asked 7 years, 9 months ago Modified 5 years, 4 months ago Viewed 4k times
gcc - Error: bad value for -march= switch - Stack Overflow
Dec 10, 2012 · Error: bad value for -march= switch Asked 12 years, 6 months ago Modified 9 years, 11 months ago Viewed 8k times
Why is -march=native not enabled by default by compilers/IDEs?
Oct 5, 2018 · Why no march=native by default? As you have pointed out, besides producing binaries incompatibility with older CPUs, march=native isn't necessarily beneficial. It improves …
what is march parameter when compile a c file - Stack Overflow
Apr 29, 2020 · I saw these two kinds of make parameters: make -march=corei7-avx xxxx xxxx make -march-icelake-server xxxx xxx arch is understood, what's the m meaning? Where can I …
c++ - equivalent of -march=native for msvc - Stack Overflow
Yes, GCC/clang -march=native detects ISA extensions supported by the host system and enables all of them. Is also detects what CPU it actually is, and enables -mtune=icelake-client or …
gcc - How is -march different from -mtune? - Stack Overflow
Oct 12, 2024 · -march=foo implies -mtune=foo unless you also specify a different -mtune. This is one reason why using -march is better than just enabling options like -mavx without doing …
-march=haswell vs -march=core-avx2 vs -mavx2 - Stack Overflow
Jul 27, 2022 · What are the differences and tradeoffs between -march=haswell, -march=core-avx2, and -mavx2 for compiling avx2 intrinsics? I know that -mavx2 is a flag and …
What flags does -march=native activate with Clang?
Feb 12, 2016 · With GCC one is able to print out the specific flags that -march=native triggers. Is it possible to have Clang print similar information?
cc1plus: error: unrecognized argument in option '-march=native'
Aug 3, 2017 · I'm trying to cross compile OpenPano for linux arm using cmake. I'm getting an error: cc1plus: error: unrecognized argument in option '-march=native' But then it says that this …