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Mix dataset cacheline with registers r0-r7

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tevador
2019-01-13 21:14:59 +01:00
parent 48d85643de
commit a7ffe8c19a
8 changed files with 691 additions and 767 deletions
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src/JitCompilerX86.cpp
+13 -24
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@@ -102,22 +102,19 @@ namespace RandomX {
const uint8_t* codePrologue = (uint8_t*)&randomx_program_prologue;
const uint8_t* codeProgramBegin = (uint8_t*)&randomx_program_begin;
const uint8_t* codeEpilogue = (uint8_t*)&randomx_program_epilogue;
const uint8_t* codeReadDatasetL1 = (uint8_t*)&randomx_program_read_l1;
const uint8_t* codeReadDatasetL2 = (uint8_t*)&randomx_program_read_l2;
const uint8_t* codeReadDataset = (uint8_t*)&randomx_program_read;
const uint8_t* codeProgramEnd = (uint8_t*)&randomx_program_end;
const uint32_t* addressTransformations = (uint32_t*)&randomx_program_transform;
const int32_t prologueSize = codeProgramBegin - codePrologue;
const int32_t epilogueSize = codeReadDatasetL1 - codeEpilogue;
const int32_t readDatasetL1Size = codeReadDatasetL2 - codeReadDatasetL1;
const int32_t readDatasetL2Size = codeProgramEnd - codeReadDatasetL2;
const int32_t epilogueSize = codeReadDataset - codeEpilogue;
const int32_t readDatasetSize = codeProgramEnd - codeReadDataset;
const int32_t readDatasetL2Offset = CodeSize - readDatasetL2Size;
const int32_t readDatasetL1Offset = readDatasetL2Offset - readDatasetL1Size;
const int32_t epilogueOffset = readDatasetL1Offset - epilogueSize;
const int32_t readDatasetOffset = CodeSize - readDatasetSize;
const int32_t epilogueOffset = readDatasetOffset - epilogueSize;
size_t JitCompilerX86::getCodeSize() {
return codePos - prologueSize + readDatasetL1Size + readDatasetL2Size;
return codePos - prologueSize + readDatasetSize;
}
JitCompilerX86::JitCompilerX86() {
@@ -131,9 +128,8 @@ namespace RandomX {
throw std::runtime_error("mmap failed");
#endif
memcpy(code, codePrologue, prologueSize);
memcpy(code + CodeSize - epilogueSize - readDatasetL1Size - readDatasetL2Size, codeEpilogue, epilogueSize);
memcpy(code + CodeSize - readDatasetL1Size - readDatasetL2Size, codeReadDatasetL1, readDatasetL1Size);
memcpy(code + CodeSize - readDatasetL2Size, codeReadDatasetL2, readDatasetL2Size);
memcpy(code + CodeSize - epilogueSize - readDatasetSize, codeEpilogue, epilogueSize);
memcpy(code + CodeSize - readDatasetSize, codeReadDataset, readDatasetSize);
}
void JitCompilerX86::generateProgram(Pcg32& gen) {
@@ -150,10 +146,8 @@ namespace RandomX {
emitByte(0xe9);
emit(instructionOffsets[0] - (codePos + 4));
fixCallOffsets();
uint32_t transformL1 = addressTransformations[gen.getUniform(0, TransformationCount - 1)];
uint32_t transformL2 = addressTransformations[gen.getUniform(0, TransformationCount - 1)];
*reinterpret_cast<uint32_t*>(code + readDatasetL1Offset + 1) = transformL1;
*reinterpret_cast<uint32_t*>(code + readDatasetL2Offset + 1) = transformL2;
uint32_t transform = addressTransformations[gen.getUniform(0, TransformationCount - 1)];
*reinterpret_cast<uint32_t*>(code + readDatasetOffset) = transform;
}
void JitCompilerX86::generateCode(Instruction& instr, int i) {
@@ -176,18 +170,13 @@ namespace RandomX {
emit(instr.addra);
emit(uint16_t(0x8b41)); //mov
emitByte(0xc0 + (instr.rega % RegistersCount)); //eax, rega
emit(0x753fc3f6); //test bl,0x3f; jne
emit(uint16_t(0xe805));
if (instr.loca & 3) { //A.LOC.W
emit(readDatasetL1Offset - (codePos + 4));
}
else {
emit(readDatasetL2Offset - (codePos + 4));
}
if ((instr.loca & 192) == 0) { //A.LOC.X
emit(uint16_t(0x3348));
emitByte(0xe8); //xor rbp, rax
}
emit(0x753fc3f6); //test bl,0x3f; jne
emit(uint16_t(0xe805));
emit(readDatasetOffset - (codePos + 4));
emitByte(0x25); //and eax,
if (instr.loca & 3) {
emit(ScratchpadL1 - 1); //first 16 KiB of scratchpad