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glibc/ports/sysdeps/arm/sub_n.S

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arm: Add optimized add_n and sub_n Written from scratch rather than copied from GMP, due to LGPL 2.1 vs GPL 3, but tested with the GMP testsuite. This is 250% faster than the generic code as measured on Cortex-A15, and the same speed as GMP on the same core, and probably everywhere.
2013-02-27 00:17:51 +00:00
#define USE_AS_SUB_N
#include "add_n.S"
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