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gcc -m

gcc -march
gcc -mconsole and gcc -mwindows] to specify the subsystem.
gcc -mcpu
gcc -municode

-msse, -msse2, -msse3, -mmmx, -m3dnow

These options enable the Streaming SIMD Extensions (SSE), SSE2, SSE3, MMX, and 3DNow! instruction sets for (modern) x86 and x86-64 architectures.
Using these options enance mathematical computations and benefits code written for

See also

GCC options

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