fzorb/REDACTED-rig
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

More optimizations for Ryzen

Browse source
This commit is contained in:
SChernykh 2019-12-09 20:29:05 +01:00
parent 9bc13813ba
commit 763691fa4b
5 changed files with 20 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/crypto/randomx/jit_compiler_x86.cpp
View file

@ -169,6 +169,7 @@ namespace randomx {
static const uint8_t REX_DIVPD[] = { 0x66, 0x41, 0x0f, 0x5e };
static const uint8_t SQRTPD[] = { 0x66, 0x0f, 0x51 };
static const uint8_t AND_OR_MOV_LDMXCSR[] = { 0x25, 0x00, 0x60, 0x00, 0x00, 0x0D, 0xC0, 0x9F, 0x00, 0x00, 0x89, 0x44, 0x24, 0xFC, 0x0F, 0xAE, 0x54, 0x24, 0xFC };
static const uint8_t AND_OR_MOV_LDMXCSR_RYZEN[] = { 0x25, 0x00, 0x60, 0x00, 0x00, 0x0D, 0xC0, 0x9F, 0x00, 0x00, 0x3B, 0x44, 0x24, 0xFC, 0x74, 0x09, 0x89, 0x44, 0x24, 0xFC, 0x0F, 0xAE, 0x54, 0x24, 0xFC };
static const uint8_t ROL_RAX[] = { 0x48, 0xc1, 0xc0 };
static const uint8_t XOR_ECX_ECX[] = { 0x33, 0xC9 };
static const uint8_t REX_CMP_R32I[] = { 0x41, 0x81 };
@ -300,6 +301,8 @@ namespace randomx {
}
void JitCompilerX86::generateProgram(Program& prog, ProgramConfiguration& pcfg, uint32_t flags) {
vm_flags = flags;
generateProgramPrologue(prog, pcfg);
uint8_t* p;
@ -1010,7 +1013,12 @@ namespace randomx {
emit(ROL_RAX, p, pos);
emitByte(rotate, p, pos);
}
emit(AND_OR_MOV_LDMXCSR, p, pos);
if (vm_flags & RANDOMX_FLAG_RYZEN) {
emit(AND_OR_MOV_LDMXCSR_RYZEN, p, pos);
}
else {
emit(AND_OR_MOV_LDMXCSR, p, pos);
}
codePos = pos;
}