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Unique scratchpad addresses

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This commit is contained in:
tevador
2019-04-14 17:21:26 +02:00
parent 2c87a058ec
commit 33a2fd021d
6 changed files with 287 additions and 288 deletions
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src/JitCompilerX86.cpp
+15 -6
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@@ -201,6 +201,7 @@ namespace RandomX {
static const uint8_t REX_TEST[] = { 0x49, 0xF7 };
static const uint8_t JZ[] = { 0x0f, 0x84 };
static const uint8_t RET = 0xc3;
static const uint8_t LEA_32[] = { 0x67, 0x41, 0x8d };
static const uint8_t NOP1[] = { 0x90 };
static const uint8_t NOP2[] = { 0x66, 0x90 };
@@ -434,8 +435,12 @@ namespace RandomX {
template void JitCompilerX86::generateCode<Program>(Instruction& instr, int i);
void JitCompilerX86::genAddressReg(Instruction& instr, bool rax = true) {
emit(REX_MOV_RR);
emitByte((rax ? 0xc0 : 0xc8) + instr.src);
emit(LEA_32);
emitByte(0x80 + instr.src + (rax ? 0 : 8));
if (instr.src == RegisterNeedsSib) {
emitByte(0x24);
}
emit32(instr.getImm32());
if (rax)
emitByte(AND_EAX_I);
else
@@ -444,8 +449,12 @@ namespace RandomX {
}
void JitCompilerX86::genAddressRegDst(Instruction& instr, bool align16 = false) {
emit(REX_MOV_RR);
emitByte(0xc0 + instr.dst);
emit(LEA_32);
emitByte(0x80 + instr.dst);
if (instr.dst == RegisterNeedsSib) {
emitByte(0x24);
}
emit32(instr.getImm32());
emitByte(AND_EAX_I);
int32_t maskL1 = align16 ? ScratchpadL1Mask16 : ScratchpadL1Mask;
int32_t maskL2 = align16 ? ScratchpadL2Mask16 : ScratchpadL2Mask;
@@ -472,12 +481,12 @@ namespace RandomX {
return;
}
emit(REX_LEA);
if (instr.dst == 5) //rbp,r13 cannot be the base register without offset
if (instr.dst == RegisterNeedsDisplacement)
emitByte(0xac);
else
emitByte(0x04 + 8 * instr.dst);
genSIB(instr.mod % 4, instr.src, instr.dst);
if (instr.dst == 5)
if (instr.dst == RegisterNeedsDisplacement)
emit32(instr.getImm32());
}