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Since VZEROUPPER triggers RTM abort while VZEROALL won't, select AVX optimized string/memory functions with xtest jz 1f vzeroall ret 1: vzeroupper ret at function exit on processors with usable RTM, but without 256-bit EVEX instructions to avoid VZEROUPPER inside a transactionally executing RTM region.
5 lines
87 B
ArmAsm
5 lines
87 B
ArmAsm
#define STRLEN __wcslen_avx2_rtm
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#define USE_AS_WCSLEN 1
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#include "strlen-avx2-rtm.S"
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