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Print average program code size

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Fixed assembly for MUL_64 and IMUL_32
Division weight 4 -> 8
This commit is contained in:
tevador
2019-01-12 16:05:09 +01:00
parent 2756bcdcfe
commit 1426fcbab5
8 changed files with 337 additions and 225 deletions
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src/JitCompilerX86.cpp
+14 -4
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@@ -116,6 +116,10 @@ namespace RandomX {
const int32_t readDatasetL1Offset = readDatasetL2Offset - readDatasetL1Size;
const int32_t epilogueOffset = readDatasetL1Offset - epilogueSize;
size_t JitCompilerX86::getCodeSize() {
return codePos - prologueSize + readDatasetL1Size + readDatasetL2Size;
}
JitCompilerX86::JitCompilerX86() {
#ifdef _WIN32
code = (uint8_t*)VirtualAlloc(nullptr, CodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
@@ -196,6 +200,7 @@ namespace RandomX {
void JitCompilerX86::genar(Instruction& instr) {
gena(instr);
emit(0xce048b48); //mov rax,QWORD PTR [rsi+rcx*8]
emit(0xdc580f66);
}
void JitCompilerX86::genaf(Instruction& instr) {
@@ -437,7 +442,7 @@ namespace RandomX {
void JitCompilerX86::h_DIV_64(Instruction& instr, int i) {
genar(instr);
if (instr.locb & 3) {
if (instr.locb & 7) {
#ifdef MAGIC_DIVISION
if (instr.imm32 != 0) {
uint32_t divisor = instr.imm32;
@@ -496,7 +501,7 @@ namespace RandomX {
void JitCompilerX86::h_IDIV_64(Instruction& instr, int i) {
genar(instr);
if (instr.locb & 3) {
if (instr.locb & 7) {
#ifdef MAGIC_DIVISION
int64_t divisor = instr.imm32;
if ((divisor & -divisor) == divisor || (divisor & -divisor) == -divisor) {
@@ -566,8 +571,8 @@ namespace RandomX {
#ifndef MAGIC_DIVISION
}
#endif
emit(0xc88b480b75fffa83);
emit(0x1274c9ff48c1d148);
emit(0xd8f7480575fffa83); //cmp edx,-1
emit(uint16_t(0x12eb)); //jmp result
emit(0x0fd28500000001b9);
emit(0x489948c96348ca45);
emit(uint16_t(0xf9f7)); //idiv rcx
@@ -766,6 +771,10 @@ namespace RandomX {
emitByte(0xc3); //ret
}
void JitCompilerX86::h_NOP(Instruction& instr, int i) {
genar(instr);
}
#include "instructionWeights.hpp"
#define INST_HANDLE(x) REPN(&JitCompilerX86::h_##x, WT(x))
@@ -801,6 +810,7 @@ namespace RandomX {
INST_HANDLE(JUMP)
INST_HANDLE(CALL)
INST_HANDLE(RET)
INST_HANDLE(NOP)
};
#endif