github-wownero/RandomWOW
1
0
Fork 0
mirror of https://github.com/wownero/RandomWOW.git synced 2026-10-17 15:31:46 +02:00
Code Issues Packages Projects Releases Wiki Activity

Fixed JIT compiler not producing the same code as genAsm and genNative

Browse Source
This commit is contained in:
tevador
2019-02-15 16:43:52 +01:00
parent f0d52fcf4d
commit a145caa185
3 changed files with 50 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/JitCompilerX86.cpp
+11 -11
View File
@@ -130,13 +130,13 @@ namespace RandomX {
static const uint8_t ADD_RAX_RCX[] = { 0x48, 0x01, 0xC8 };
static const uint8_t SAR_RAX_I8[] = { 0x48, 0xC1, 0xF8 };
static const uint8_t NEG_RAX[] = { 0x48, 0xF7, 0xD8 };
static const uint8_t ADD_R_RAX[] = { 0x49, 0x01 };
static const uint8_t XOR_EAX_EAX[] = { 0x31, 0xC0 };
static const uint8_t ADD_R_RAX[] = { 0x4C, 0x03 };
static const uint8_t XOR_EAX_EAX[] = { 0x33, 0xC0 };
static const uint8_t ADD_RDX_R[] = { 0x4c, 0x01 };
static const uint8_t SUB_RDX_R[] = { 0x4c, 0x29 };
static const uint8_t SAR_RDX_I8[] = { 0x48, 0xC1, 0xFA };
static const uint8_t TEST_RDX_RDX[] = { 0x48, 0x85, 0xD2 };
static const uint8_t SETS_AL_ADD_RDX_RAX[] = { 0x0F, 0x98, 0xC0, 0x48, 0x01, 0xC2 };
static const uint8_t SETS_AL_ADD_RDX_RAX[] = { 0x0F, 0x98, 0xC0, 0x48, 0x03, 0xD0 };
static const uint8_t REX_NEG[] = { 0x49, 0xF7 };
static const uint8_t REX_XOR_RR[] = { 0x4D, 0x33 };
static const uint8_t REX_XOR_RI[] = { 0x49, 0x81 };
@@ -272,7 +272,7 @@ namespace RandomX {
}
void JitCompilerX86::genSIB(int scale, int index, int base) {
emitByte((scale << 5) | (index << 3) | base);
emitByte((scale << 6) | (index << 3) | base);
}
void JitCompilerX86::h_IADD_RC(Instruction& instr) {
@@ -290,7 +290,7 @@ namespace RandomX {
else {
emit(REX_81);
emitByte(0xe8 + instr.dst);
genAddressImm(instr);
emit32(instr.imm32);
}
}
@@ -311,7 +311,7 @@ namespace RandomX {
void JitCompilerX86::h_IMUL_9C(Instruction& instr) {
emit(REX_LEA);
emitByte(0x84 + 8 * instr.dst);
genSIB(3, instr.src, instr.dst);
genSIB(3, instr.dst, instr.dst);
emit32(instr.imm32);
}
@@ -323,7 +323,7 @@ namespace RandomX {
else {
emit(REX_IMUL_RRI);
emitByte(0xc0 + 9 * instr.dst);
genAddressImm(instr);
emit32(instr.imm32);
}
}
@@ -424,7 +424,7 @@ namespace RandomX {
emit(REX_SHR_RDX);
emitByte(mi.post_shift);
}
emit(REX_ADD_RR);
emit(REX_ADD_RM);
emitByte(0xc2 + 8 * instr.dst);
}
else { //divisor is a power of two
@@ -440,7 +440,7 @@ namespace RandomX {
}
void JitCompilerX86::h_ISDIV_C(Instruction& instr) {
int64_t divisor = instr.imm32;
int64_t divisor = (int32_t)instr.imm32;
if ((divisor & -divisor) == divisor || (divisor & -divisor) == -divisor) {
emit(REX_MOV_RR64);
emitByte(0xc0 + instr.dst);
@@ -493,7 +493,7 @@ namespace RandomX {
emit(TEST_RDX_RDX);
emit(SETS_AL_ADD_RDX_RAX);
emit(ADD_R_RAX);
emitByte(0xd0 + instr.dst);
emitByte(0xc2 + 8 * instr.dst);
}
}
@@ -559,7 +559,7 @@ namespace RandomX {
void JitCompilerX86::h_ISWAP_R(Instruction& instr) {
if (instr.src != instr.dst) {
emit(REX_XCHG);
emitByte(0xc0 + instr.dst + 8 * instr.src);
emitByte(0xc0 + instr.src + 8 * instr.dst);
}
}