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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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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;