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remove unnecessary first-load initialization code

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This commit is contained in:
cryptonote-social 2021-01-23 13:02:54 -08:00
parent a7733de1e7
commit 529b933fcf
4 changed files with 2 additions and 18 deletions
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4
src/jit_compiler_x86.cpp
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@ -299,10 +299,6 @@ namespace randomx {
registerUsage[i] = -1;
}
codePos = ((uint8_t*)randomx_program_prologue_first_load) - ((uint8_t*)randomx_program_prologue);
code[codePos + sizeof(REX_XOR_RAX_R64)] = 0xc0 + pcfg.readReg0;
code[codePos + sizeof(REX_XOR_RAX_R64) * 2 + 1] = 0xc0 + pcfg.readReg1;
codePos = prologueSize;
memcpy(code + codePos - 48, &pcfg.eMask, sizeof(pcfg.eMask));
memcpy(code + codePos, codeLoopLoad, loopLoadSize);

5
src/jit_compiler_x86_static.S
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@ -40,7 +40,6 @@
.global DECL(randomx_prefetch_scratchpad)
.global DECL(randomx_prefetch_scratchpad_end)
.global DECL(randomx_program_prologue)
.global DECL(randomx_program_prologue_first_load)
.global DECL(randomx_program_loop_begin)
.global DECL(randomx_program_loop_load)
.global DECL(randomx_program_start)
@ -88,10 +87,6 @@ DECL(randomx_program_prologue):
movapd xmm13, xmmword ptr [mantissaMask+rip]
movapd xmm14, xmmword ptr [exp240+rip]
movapd xmm15, xmmword ptr [scaleMask+rip]
DECL(randomx_program_prologue_first_load):
xor rax, r8
xor rax, r8
mov rdx, rax
and eax, RANDOMX_SCRATCHPAD_MASK
ror rdx, 32

8
src/jit_compiler_x86_static.asm
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@ -31,7 +31,6 @@ _RANDOMX_JITX86_STATIC SEGMENT PAGE READ EXECUTE
PUBLIC randomx_prefetch_scratchpad
PUBLIC randomx_prefetch_scratchpad_end
PUBLIC randomx_program_prologue
PUBLIC randomx_program_prologue_first_load
PUBLIC randomx_program_loop_begin
PUBLIC randomx_program_loop_load
PUBLIC randomx_program_start
@ -75,17 +74,12 @@ randomx_program_prologue PROC
movapd xmm13, xmmword ptr [mantissaMask]
movapd xmm14, xmmword ptr [exp240]
movapd xmm15, xmmword ptr [scaleMask]
randomx_program_prologue ENDP
randomx_program_prologue_first_load PROC
xor rax, r8
xor rax, r8
mov rdx, rax
and eax, RANDOMX_SCRATCHPAD_MASK
ror rdx, 32
and edx, RANDOMX_SCRATCHPAD_MASK
jmp randomx_program_loop_begin
randomx_program_prologue_first_load ENDP
randomx_program_prologue ENDP
ALIGN 64
include asm/program_xmm_constants.inc

1
src/jit_compiler_x86_static.hpp
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@ -32,7 +32,6 @@ extern "C" {
void randomx_prefetch_scratchpad();
void randomx_prefetch_scratchpad_end();
void randomx_program_prologue();
void randomx_program_prologue_first_load();
void randomx_program_loop_begin();
void randomx_program_loop_load();
void randomx_program_start();