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JIT compiler: removed unnecessary memcpy from generateProgram()

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This commit is contained in:
SChernykh 2020-01-13 18:00:41 +01:00
parent 638ed7b4f2
commit 73722ce186
2 changed files with 11 additions and 12 deletions
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16
src/crypto/randomx/asm/program_loop_load.inc
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@ -18,11 +18,11 @@
cvtdq2pd xmm5, qword ptr [rcx+40]
cvtdq2pd xmm6, qword ptr [rcx+48]
cvtdq2pd xmm7, qword ptr [rcx+56]
andps xmm4, xmm13
andps xmm5, xmm13
andps xmm6, xmm13
andps xmm7, xmm13
orps xmm4, xmm14
orps xmm5, xmm14
orps xmm6, xmm14
orps xmm7, xmm14
andpd xmm4, xmm13
andpd xmm5, xmm13
andpd xmm6, xmm13
andpd xmm7, xmm13
orpd xmm4, xmm14
orpd xmm5, xmm14
orpd xmm6, xmm14
orpd xmm7, xmm14

7
src/crypto/randomx/jit_compiler_x86.cpp
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@ -299,6 +299,7 @@ namespace randomx {
// Shift code base address to improve caching - all threads will use different L2/L3 cache sets
code = allocatedCode + (codeOffset.fetch_add(59 * 64) % CodeSize);
memcpy(code, codePrologue, prologueSize);
memcpy(code + prologueSize, codeLoopLoad, loopLoadSize);
memcpy(code + epilogueOffset, codeEpilogue, epilogueSize);
# ifdef XMRIG_FIX_RYZEN
mainLoopBounds.first = code + prologueSize;
@ -393,10 +394,8 @@ namespace randomx {
xmrig::Rx::setMainLoopBounds(mainLoopBounds);
# endif
codePos = prologueSize;
memcpy(code + codePos - 48, &pcfg.eMask, sizeof(pcfg.eMask));
memcpy(code + codePos, codeLoopLoad, loopLoadSize);
codePos += loopLoadSize;
memcpy(code + prologueSize - 48, &pcfg.eMask, sizeof(pcfg.eMask));
codePos = prologueSize + loopLoadSize;
//mark all registers as used
uint64_t* r = (uint64_t*)registerUsage;