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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.
18 lines
393 B
ArmAsm
18 lines
393 B
ArmAsm
#if IS_IN (libc)
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# define VEC_SIZE 32
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# define VEC(i) ymm##i
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# define VMOVNT vmovntdq
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# define VMOVU vmovdqu
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# define VMOVA vmovdqa
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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)
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# define SECTION(p) p##.avx.rtm
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# define MEMMOVE_SYMBOL(p,s) p##_avx_##s##_rtm
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# include "memmove-vec-unaligned-erms.S"
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#endif
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