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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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7
src/crypto/randomx/jit_compiler_x86_static.S
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@@ -41,6 +41,7 @@
.global DECL(randomx_prefetch_scratchpad_end)
.global DECL(randomx_program_prologue)
.global DECL(randomx_program_prologue_first_load)
.global DECL(randomx_program_imul_rcp_store)
.global DECL(randomx_program_loop_begin)
.global DECL(randomx_program_loop_load)
.global DECL(randomx_program_loop_load_xop)
@@ -106,11 +107,15 @@ DECL(randomx_program_prologue_first_load):
nop
nop
nop
jmp DECL(randomx_program_loop_begin)
jmp DECL(randomx_program_imul_rcp_store)
.balign 64
#include "asm/program_xmm_constants.inc"
DECL(randomx_program_imul_rcp_store):
#include "asm/program_imul_rcp_store.inc"
jmp DECL(randomx_program_loop_begin)
.balign 64
DECL(randomx_program_loop_begin):
nop