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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.
13 lines
262 B
ArmAsm
13 lines
262 B
ArmAsm
#ifndef MEMCMP
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# define MEMCMP __memcmp_avx2_movbe_rtm
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#endif
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#define ZERO_UPPER_VEC_REGISTERS_RETURN \
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ZERO_UPPER_VEC_REGISTERS_RETURN_XTEST
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#define VZEROUPPER_RETURN jmp L(return_vzeroupper)
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#define SECTION(p) p##.avx.rtm
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#include "memcmp-avx2-movbe.S"
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