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Optimizations to reduce code size under 32K

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This commit is contained in:
tevador
2019-01-08 14:50:31 +01:00
parent b6d654291f
commit b71e0eec65
4 changed files with 1252 additions and 1633 deletions
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32
src/AssemblyGeneratorX86.cpp
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@@ -28,9 +28,10 @@ namespace RandomX {
static const char* regR32[8] = { "r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d" };
static const char* regF[8] = { "xmm8", "xmm9", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7" };
static const char* regMx = "rdi";
static const char* regIc = "ebp";
static const char* regStackBeginAddr = "rbx";
static const char* regMx = "rbp";
static const char* regIc = "ebx";
static const char* regIc8 = "bl";
static const char* regStackBeginAddr = "rdi";
static const char* regScratchpadAddr = "rsi";
void AssemblyGeneratorX86::generateProgram(const void* seed) {
@@ -62,7 +63,7 @@ namespace RandomX {
void AssemblyGeneratorX86::genar(Instruction& instr, int i) {
asmCode << "\txor " << regR[instr.rega % RegistersCount] << ", 0" << std::hex << instr.addra << "h" << std::dec << std::endl;
asmCode << "\tmov ecx, " << regR32[instr.rega % RegistersCount] << std::endl;
asmCode << "\ttest " << regIc << ", 63" << std::endl;
asmCode << "\ttest " << regIc8 << ", 63" << std::endl;
asmCode << "\tjnz short rx_body_" << i << std::endl;
switch (instr.loca & 3)
{
@@ -71,13 +72,15 @@ namespace RandomX {
case 2:
asmCode << "\tcall rx_read_l1" << std::endl;
asmCode << "rx_body_" << i << ":" << std::endl;
asmCode << "\txor " << regMx << ", rcx" << std::endl;
if ((instr.loca & 192) == 0)
asmCode << "\txor " << regMx << ", rcx" << std::endl;
asmCode << "\tand ecx, " << (ScratchpadL1 - 1) << std::endl;
break;
default: //3
asmCode << "\tcall rx_read_l2" << std::endl;
asmCode << "rx_body_" << i << ":" << std::endl;
asmCode << "\txor " << regMx << ", rcx" << std::endl;
if ((instr.loca & 192) == 0)
asmCode << "\txor " << regMx << ", rcx" << std::endl;
asmCode << "\tand ecx, " << (ScratchpadL2 - 1) << std::endl;
break;
}
@@ -88,7 +91,7 @@ namespace RandomX {
void AssemblyGeneratorX86::genaf(Instruction& instr, int i) {
asmCode << "\txor " << regR[instr.rega % RegistersCount] << ", 0" << std::hex << instr.addra << "h" << std::dec << std::endl;
asmCode << "\tmov ecx, " << regR32[instr.rega % RegistersCount] << std::endl;
asmCode << "\ttest " << regIc << ", 63" << std::endl;
asmCode << "\ttest " << regIc8 << ", 63" << std::endl;
asmCode << "\tjnz short rx_body_" << i << std::endl;
switch (instr.loca & 3)
{
@@ -97,13 +100,15 @@ namespace RandomX {
case 2:
asmCode << "\tcall rx_read_l1" << std::endl;
asmCode << "rx_body_" << i << ":" << std::endl;
asmCode << "\txor " << regMx << ", rcx" << std::endl;
if((instr.loca & 192) == 0)
asmCode << "\txor " << regMx << ", rcx" << std::endl;
asmCode << "\tand ecx, " << (ScratchpadL1 - 1) << std::endl;
break;
default: //3
asmCode << "\tcall rx_read_l2" << std::endl;
asmCode << "rx_body_" << i << ":" << std::endl;
asmCode << "\txor " << regMx << ", rcx" << std::endl;
if ((instr.loca & 192) == 0)
asmCode << "\txor " << regMx << ", rcx" << std::endl;
asmCode << "\tand ecx, " << (ScratchpadL2 - 1) << std::endl;
break;
}
@@ -200,8 +205,9 @@ namespace RandomX {
}
}
void AssemblyGeneratorX86::gencf(Instruction& instr) {
asmCode << "\tmovaps " << regF[instr.regc % RegistersCount] << ", xmm0" << std::endl;
void AssemblyGeneratorX86::gencf(Instruction& instr, bool move = true) {
if(move)
asmCode << "\tmovaps " << regF[instr.regc % RegistersCount] << ", xmm0" << std::endl;
const char* store = (instr.locc & 8) ? "movhpd" : "movlpd";
switch (instr.locc & 7)
{
@@ -451,8 +457,8 @@ namespace RandomX {
void AssemblyGeneratorX86::h_FPSQRT(Instruction& instr, int i) {
genaf(instr, i);
asmCode << "\tandps xmm0, xmm10" << std::endl;
asmCode << "\tsqrtpd xmm0, xmm0" << std::endl;
gencf(instr);
asmCode << "\tsqrtpd " << regF[instr.regc % RegistersCount] << ", xmm0" << std::endl;
gencf(instr, false);
}
void AssemblyGeneratorX86::h_FPROUND(Instruction& instr, int i) {