Nov 24, 2023"i want change it to -march=x86-64 in cmake, how to do it? - find out how exactly pcl adds -march=native flag. Yes, gcc/clang -march=native detects isa extensions supported by the host system and enables all of them.
Oct 5, 2018for -o0, whether -march=native or -march= is the default still specifies the same family, so both are perfectly compatibly with -o0; As i understand it, -march=native will detect the isa and extensions to use from cpuid (which include model, family and stepping information). -march=xxx will use a baseline set of extensions and a.
Mar 11, 2025using clang 16.0 or later, i would like to know what values could be used for the -march argument. Gcc 4.2 and above support -march=native. -march=native applies additional settings beyond -march, specific to your cpu.
Instead of manually selecting the optimization flags i'm using -march=native, which in theory should add all optimization flags applicable to the. Jul 27, 2022what 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 -march=haswell/core-avx2 are.
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