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RandomX: optimized IMUL_RCP instruction

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+0.4% on AMD Zen2
+0.3% on AMD Zen3
+0.1% on Intel SandyBridge
+0.3% on rx/wow on Intel SandyBridge
This commit is contained in:
SChernykh 2021-04-19 17:43:58 +02:00
parent 61d165a314
commit 3477f9fbc1
6 changed files with 55 additions and 9 deletions
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8
src/crypto/randomx/jit_compiler_x86_static.asm
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@ -32,6 +32,7 @@ PUBLIC randomx_prefetch_scratchpad
PUBLIC randomx_prefetch_scratchpad_end
PUBLIC randomx_program_prologue
PUBLIC randomx_program_prologue_first_load
PUBLIC randomx_program_imul_rcp_store
PUBLIC randomx_program_loop_begin
PUBLIC randomx_program_loop_load
PUBLIC randomx_program_loop_load_xop
@ -94,12 +95,17 @@ randomx_program_prologue_first_load PROC
nop
nop
nop
jmp randomx_program_loop_begin
jmp randomx_program_imul_rcp_store
randomx_program_prologue_first_load ENDP
ALIGN 64
include asm/program_xmm_constants.inc
randomx_program_imul_rcp_store PROC
include asm/program_imul_rcp_store.inc
jmp randomx_program_loop_begin
randomx_program_imul_rcp_store ENDP
ALIGN 64
randomx_program_loop_begin PROC
nop