572 lines
18 KiB
C++
572 lines
18 KiB
C++
#ifndef XBYAK_XBYAK_UTIL_H_
|
|
#define XBYAK_XBYAK_UTIL_H_
|
|
|
|
/**
|
|
utility class and functions for Xbyak
|
|
Xbyak::util::Clock ; rdtsc timer
|
|
Xbyak::util::Cpu ; detect CPU
|
|
@note this header is UNDER CONSTRUCTION!
|
|
*/
|
|
#include "xbyak.h"
|
|
|
|
#ifdef _MSC_VER
|
|
#if (_MSC_VER < 1400) && defined(XBYAK32)
|
|
static inline __declspec(naked) void __cpuid(int[4], int)
|
|
{
|
|
__asm {
|
|
push ebx
|
|
push esi
|
|
mov eax, dword ptr [esp + 4 * 2 + 8] // eaxIn
|
|
cpuid
|
|
mov esi, dword ptr [esp + 4 * 2 + 4] // data
|
|
mov dword ptr [esi], eax
|
|
mov dword ptr [esi + 4], ebx
|
|
mov dword ptr [esi + 8], ecx
|
|
mov dword ptr [esi + 12], edx
|
|
pop esi
|
|
pop ebx
|
|
ret
|
|
}
|
|
}
|
|
#else
|
|
#include <intrin.h> // for __cpuid
|
|
#endif
|
|
#else
|
|
#ifndef __GNUC_PREREQ
|
|
#define __GNUC_PREREQ(major, minor) ((((__GNUC__) << 16) + (__GNUC_MINOR__)) >= (((major) << 16) + (minor)))
|
|
#endif
|
|
#if __GNUC_PREREQ(4, 3) && !defined(__APPLE__)
|
|
#include <cpuid.h>
|
|
#else
|
|
#if defined(__APPLE__) && defined(XBYAK32) // avoid err : can't find a register in class `BREG' while reloading `asm'
|
|
#define __cpuid(eaxIn, a, b, c, d) __asm__ __volatile__("pushl %%ebx\ncpuid\nmovl %%ebp, %%esi\npopl %%ebx" : "=a"(a), "=S"(b), "=c"(c), "=d"(d) : "0"(eaxIn))
|
|
#define __cpuid_count(eaxIn, ecxIn, a, b, c, d) __asm__ __volatile__("pushl %%ebx\ncpuid\nmovl %%ebp, %%esi\npopl %%ebx" : "=a"(a), "=S"(b), "=c"(c), "=d"(d) : "0"(eaxIn), "2"(ecxIn))
|
|
#else
|
|
#define __cpuid(eaxIn, a, b, c, d) __asm__ __volatile__("cpuid\n" : "=a"(a), "=b"(b), "=c"(c), "=d"(d) : "0"(eaxIn))
|
|
#define __cpuid_count(eaxIn, ecxIn, a, b, c, d) __asm__ __volatile__("cpuid\n" : "=a"(a), "=b"(b), "=c"(c), "=d"(d) : "0"(eaxIn), "2"(ecxIn))
|
|
#endif
|
|
#endif
|
|
#endif
|
|
|
|
namespace Xbyak { namespace util {
|
|
|
|
/**
|
|
CPU detection class
|
|
*/
|
|
class Cpu {
|
|
uint64 type_;
|
|
unsigned int get32bitAsBE(const char *x) const
|
|
{
|
|
return x[0] | (x[1] << 8) | (x[2] << 16) | (x[3] << 24);
|
|
}
|
|
unsigned int mask(int n) const
|
|
{
|
|
return (1U << n) - 1;
|
|
}
|
|
void setFamily()
|
|
{
|
|
unsigned int data[4];
|
|
getCpuid(1, data);
|
|
stepping = data[0] & mask(4);
|
|
model = (data[0] >> 4) & mask(4);
|
|
family = (data[0] >> 8) & mask(4);
|
|
// type = (data[0] >> 12) & mask(2);
|
|
extModel = (data[0] >> 16) & mask(4);
|
|
extFamily = (data[0] >> 20) & mask(8);
|
|
if (family == 0x0f) {
|
|
displayFamily = family + extFamily;
|
|
} else {
|
|
displayFamily = family;
|
|
}
|
|
if (family == 6 || family == 0x0f) {
|
|
displayModel = (extModel << 4) + model;
|
|
} else {
|
|
displayModel = model;
|
|
}
|
|
}
|
|
public:
|
|
int model;
|
|
int family;
|
|
int stepping;
|
|
int extModel;
|
|
int extFamily;
|
|
int displayFamily; // family + extFamily
|
|
int displayModel; // model + extModel
|
|
/*
|
|
data[] = { eax, ebx, ecx, edx }
|
|
*/
|
|
static inline void getCpuid(unsigned int eaxIn, unsigned int data[4])
|
|
{
|
|
#ifdef _MSC_VER
|
|
__cpuid(reinterpret_cast<int*>(data), eaxIn);
|
|
#else
|
|
__cpuid(eaxIn, data[0], data[1], data[2], data[3]);
|
|
#endif
|
|
}
|
|
static inline void getCpuidEx(unsigned int eaxIn, unsigned int ecxIn, unsigned int data[4])
|
|
{
|
|
#ifdef _MSC_VER
|
|
__cpuidex(reinterpret_cast<int*>(data), eaxIn, ecxIn);
|
|
#else
|
|
__cpuid_count(eaxIn, ecxIn, data[0], data[1], data[2], data[3]);
|
|
#endif
|
|
}
|
|
static inline uint64 getXfeature()
|
|
{
|
|
#ifdef _MSC_VER
|
|
return _xgetbv(0);
|
|
#else
|
|
unsigned int eax, edx;
|
|
// xgetvb is not support on gcc 4.2
|
|
// __asm__ volatile("xgetbv" : "=a"(eax), "=d"(edx) : "c"(0));
|
|
__asm__ volatile(".byte 0x0f, 0x01, 0xd0" : "=a"(eax), "=d"(edx) : "c"(0));
|
|
return ((uint64)edx << 32) | eax;
|
|
#endif
|
|
}
|
|
typedef uint64 Type;
|
|
static const Type NONE = 0;
|
|
static const Type tMMX = 1 << 0;
|
|
static const Type tMMX2 = 1 << 1;
|
|
static const Type tCMOV = 1 << 2;
|
|
static const Type tSSE = 1 << 3;
|
|
static const Type tSSE2 = 1 << 4;
|
|
static const Type tSSE3 = 1 << 5;
|
|
static const Type tSSSE3 = 1 << 6;
|
|
static const Type tSSE41 = 1 << 7;
|
|
static const Type tSSE42 = 1 << 8;
|
|
static const Type tPOPCNT = 1 << 9;
|
|
static const Type tAESNI = 1 << 10;
|
|
static const Type tSSE5 = 1 << 11;
|
|
static const Type tOSXSAVE = 1 << 12;
|
|
static const Type tPCLMULQDQ = 1 << 13;
|
|
static const Type tAVX = 1 << 14;
|
|
static const Type tFMA = 1 << 15;
|
|
|
|
static const Type t3DN = 1 << 16;
|
|
static const Type tE3DN = 1 << 17;
|
|
static const Type tSSE4a = 1 << 18;
|
|
static const Type tRDTSCP = 1 << 19;
|
|
static const Type tAVX2 = 1 << 20;
|
|
static const Type tBMI1 = 1 << 21; // andn, bextr, blsi, blsmsk, blsr, tzcnt
|
|
static const Type tBMI2 = 1 << 22; // bzhi, mulx, pdep, pext, rorx, sarx, shlx, shrx
|
|
static const Type tLZCNT = 1 << 23;
|
|
|
|
static const Type tINTEL = 1 << 24;
|
|
static const Type tAMD = 1 << 25;
|
|
|
|
static const Type tENHANCED_REP = 1 << 26; // enhanced rep movsb/stosb
|
|
static const Type tRDRAND = 1 << 27;
|
|
static const Type tADX = 1 << 28; // adcx, adox
|
|
static const Type tRDSEED = 1 << 29; // rdseed
|
|
static const Type tSMAP = 1 << 30; // stac
|
|
static const Type tHLE = uint64(1) << 31; // xacquire, xrelease, xtest
|
|
static const Type tRTM = uint64(1) << 32; // xbegin, xend, xabort
|
|
static const Type tF16C = uint64(1) << 33; // vcvtph2ps, vcvtps2ph
|
|
static const Type tMOVBE = uint64(1) << 34; // mobve
|
|
static const Type tAVX512F = uint64(1) << 35;
|
|
static const Type tAVX512DQ = uint64(1) << 36;
|
|
static const Type tAVX512IFMA = uint64(1) << 37;
|
|
static const Type tAVX512PF = uint64(1) << 38;
|
|
static const Type tAVX512ER = uint64(1) << 39;
|
|
static const Type tAVX512CD = uint64(1) << 40;
|
|
static const Type tAVX512BW = uint64(1) << 41;
|
|
static const Type tAVX512VL = uint64(1) << 42;
|
|
static const Type tAVX512VBMI = uint64(1) << 43;
|
|
static const Type tAVX512_4VNNIW = uint64(1) << 44;
|
|
static const Type tAVX512_4FMAPS = uint64(1) << 45;
|
|
static const Type tPREFETCHWT1 = uint64(1) << 46;
|
|
static const Type tPREFETCHW = uint64(1) << 47;
|
|
static const Type tSHA = uint64(1) << 48;
|
|
static const Type tMPX = uint64(1) << 49;
|
|
|
|
Cpu()
|
|
: type_(NONE)
|
|
{
|
|
unsigned int data[4];
|
|
getCpuid(0, data);
|
|
const unsigned int maxNum = data[0];
|
|
static const char intel[] = "ntel";
|
|
static const char amd[] = "cAMD";
|
|
if (data[2] == get32bitAsBE(amd)) {
|
|
type_ |= tAMD;
|
|
getCpuid(0x80000001, data);
|
|
if (data[3] & (1U << 31)) type_ |= t3DN;
|
|
if (data[3] & (1U << 15)) type_ |= tCMOV;
|
|
if (data[3] & (1U << 30)) type_ |= tE3DN;
|
|
if (data[3] & (1U << 22)) type_ |= tMMX2;
|
|
if (data[3] & (1U << 27)) type_ |= tRDTSCP;
|
|
}
|
|
if (data[2] == get32bitAsBE(intel)) {
|
|
type_ |= tINTEL;
|
|
getCpuid(0x80000001, data);
|
|
if (data[3] & (1U << 27)) type_ |= tRDTSCP;
|
|
if (data[2] & (1U << 5)) type_ |= tLZCNT;
|
|
if (data[2] & (1U << 8)) type_ |= tPREFETCHW;
|
|
}
|
|
getCpuid(1, data);
|
|
if (data[2] & (1U << 0)) type_ |= tSSE3;
|
|
if (data[2] & (1U << 9)) type_ |= tSSSE3;
|
|
if (data[2] & (1U << 19)) type_ |= tSSE41;
|
|
if (data[2] & (1U << 20)) type_ |= tSSE42;
|
|
if (data[2] & (1U << 22)) type_ |= tMOVBE;
|
|
if (data[2] & (1U << 23)) type_ |= tPOPCNT;
|
|
if (data[2] & (1U << 25)) type_ |= tAESNI;
|
|
if (data[2] & (1U << 1)) type_ |= tPCLMULQDQ;
|
|
if (data[2] & (1U << 27)) type_ |= tOSXSAVE;
|
|
if (data[2] & (1U << 30)) type_ |= tRDRAND;
|
|
if (data[2] & (1U << 29)) type_ |= tF16C;
|
|
|
|
if (data[3] & (1U << 15)) type_ |= tCMOV;
|
|
if (data[3] & (1U << 23)) type_ |= tMMX;
|
|
if (data[3] & (1U << 25)) type_ |= tMMX2 | tSSE;
|
|
if (data[3] & (1U << 26)) type_ |= tSSE2;
|
|
|
|
if (type_ & tOSXSAVE) {
|
|
// check XFEATURE_ENABLED_MASK[2:1] = '11b'
|
|
uint64 bv = getXfeature();
|
|
if ((bv & 6) == 6) {
|
|
if (data[2] & (1U << 28)) type_ |= tAVX;
|
|
if (data[2] & (1U << 12)) type_ |= tFMA;
|
|
if (((bv >> 5) & 7) == 7) {
|
|
getCpuidEx(7, 0, data);
|
|
if (data[1] & (1U << 16)) type_ |= tAVX512F;
|
|
if (type_ & tAVX512F) {
|
|
if (data[1] & (1U << 17)) type_ |= tAVX512DQ;
|
|
if (data[1] & (1U << 21)) type_ |= tAVX512IFMA;
|
|
if (data[1] & (1U << 26)) type_ |= tAVX512PF;
|
|
if (data[1] & (1U << 27)) type_ |= tAVX512ER;
|
|
if (data[1] & (1U << 28)) type_ |= tAVX512CD;
|
|
if (data[1] & (1U << 30)) type_ |= tAVX512BW;
|
|
if (data[1] & (1U << 31)) type_ |= tAVX512VL;
|
|
if (data[2] & (1U << 1)) type_ |= tAVX512VBMI;
|
|
if (data[3] & (1U << 2)) type_ |= tAVX512_4VNNIW;
|
|
if (data[3] & (1U << 3)) type_ |= tAVX512_4FMAPS;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (maxNum >= 7) {
|
|
getCpuidEx(7, 0, data);
|
|
if (type_ & tAVX && data[1] & 0x20) type_ |= tAVX2;
|
|
if (data[1] & (1U << 3)) type_ |= tBMI1;
|
|
if (data[1] & (1U << 8)) type_ |= tBMI2;
|
|
if (data[1] & (1U << 9)) type_ |= tENHANCED_REP;
|
|
if (data[1] & (1U << 18)) type_ |= tRDSEED;
|
|
if (data[1] & (1U << 19)) type_ |= tADX;
|
|
if (data[1] & (1U << 20)) type_ |= tSMAP;
|
|
if (data[1] & (1U << 4)) type_ |= tHLE;
|
|
if (data[1] & (1U << 11)) type_ |= tRTM;
|
|
if (data[1] & (1U << 14)) type_ |= tMPX;
|
|
if (data[1] & (1U << 29)) type_ |= tSHA;
|
|
if (data[2] & (1U << 0)) type_ |= tPREFETCHWT1;
|
|
}
|
|
setFamily();
|
|
}
|
|
void putFamily() const
|
|
{
|
|
printf("family=%d, model=%X, stepping=%d, extFamily=%d, extModel=%X\n",
|
|
family, model, stepping, extFamily, extModel);
|
|
printf("display:family=%X, model=%X\n", displayFamily, displayModel);
|
|
}
|
|
bool has(Type type) const
|
|
{
|
|
return (type & type_) != 0;
|
|
}
|
|
};
|
|
|
|
class Clock {
|
|
public:
|
|
static inline uint64 getRdtsc()
|
|
{
|
|
#ifdef _MSC_VER
|
|
return __rdtsc();
|
|
#else
|
|
unsigned int eax, edx;
|
|
__asm__ volatile("rdtsc" : "=a"(eax), "=d"(edx));
|
|
return ((uint64)edx << 32) | eax;
|
|
#endif
|
|
}
|
|
Clock()
|
|
: clock_(0)
|
|
, count_(0)
|
|
{
|
|
}
|
|
void begin()
|
|
{
|
|
clock_ -= getRdtsc();
|
|
}
|
|
void end()
|
|
{
|
|
clock_ += getRdtsc();
|
|
count_++;
|
|
}
|
|
int getCount() const { return count_; }
|
|
uint64 getClock() const { return clock_; }
|
|
void clear() { count_ = 0; clock_ = 0; }
|
|
private:
|
|
uint64 clock_;
|
|
int count_;
|
|
};
|
|
|
|
#ifdef XBYAK64
|
|
const int UseRCX = 1 << 6;
|
|
const int UseRDX = 1 << 7;
|
|
|
|
class Pack {
|
|
static const size_t maxTblNum = 10;
|
|
const Xbyak::Reg64 *tbl_[maxTblNum];
|
|
size_t n_;
|
|
public:
|
|
Pack() : tbl_(), n_(0) {}
|
|
Pack(const Xbyak::Reg64 *tbl, size_t n) { init(tbl, n); }
|
|
Pack(const Pack& rhs)
|
|
: n_(rhs.n_)
|
|
{
|
|
for (size_t i = 0; i < n_; i++) tbl_[i] = rhs.tbl_[i];
|
|
}
|
|
Pack& operator=(const Pack& rhs)
|
|
{
|
|
n_ = rhs.n_;
|
|
for (size_t i = 0; i < n_; i++) tbl_[i] = rhs.tbl_[i];
|
|
return *this;
|
|
}
|
|
Pack(const Xbyak::Reg64& t0)
|
|
{ n_ = 1; tbl_[0] = &t0; }
|
|
Pack(const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 2; tbl_[0] = &t0; tbl_[1] = &t1; }
|
|
Pack(const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 3; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; }
|
|
Pack(const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 4; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; }
|
|
Pack(const Xbyak::Reg64& t4, const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 5; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; tbl_[4] = &t4; }
|
|
Pack(const Xbyak::Reg64& t5, const Xbyak::Reg64& t4, const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 6; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; tbl_[4] = &t4; tbl_[5] = &t5; }
|
|
Pack(const Xbyak::Reg64& t6, const Xbyak::Reg64& t5, const Xbyak::Reg64& t4, const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 7; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; tbl_[4] = &t4; tbl_[5] = &t5; tbl_[6] = &t6; }
|
|
Pack(const Xbyak::Reg64& t7, const Xbyak::Reg64& t6, const Xbyak::Reg64& t5, const Xbyak::Reg64& t4, const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 8; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; tbl_[4] = &t4; tbl_[5] = &t5; tbl_[6] = &t6; tbl_[7] = &t7; }
|
|
Pack(const Xbyak::Reg64& t8, const Xbyak::Reg64& t7, const Xbyak::Reg64& t6, const Xbyak::Reg64& t5, const Xbyak::Reg64& t4, const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 9; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; tbl_[4] = &t4; tbl_[5] = &t5; tbl_[6] = &t6; tbl_[7] = &t7; tbl_[8] = &t8; }
|
|
Pack(const Xbyak::Reg64& t9, const Xbyak::Reg64& t8, const Xbyak::Reg64& t7, const Xbyak::Reg64& t6, const Xbyak::Reg64& t5, const Xbyak::Reg64& t4, const Xbyak::Reg64& t3, const Xbyak::Reg64& t2, const Xbyak::Reg64& t1, const Xbyak::Reg64& t0)
|
|
{ n_ = 10; tbl_[0] = &t0; tbl_[1] = &t1; tbl_[2] = &t2; tbl_[3] = &t3; tbl_[4] = &t4; tbl_[5] = &t5; tbl_[6] = &t6; tbl_[7] = &t7; tbl_[8] = &t8; tbl_[9] = &t9; }
|
|
Pack& append(const Xbyak::Reg64& t)
|
|
{
|
|
if (n_ == maxTblNum) {
|
|
fprintf(stderr, "ERR Pack::can't append\n");
|
|
throw Error(ERR_BAD_PARAMETER);
|
|
}
|
|
tbl_[n_++] = &t;
|
|
return *this;
|
|
}
|
|
void init(const Xbyak::Reg64 *tbl, size_t n)
|
|
{
|
|
if (n > maxTblNum) {
|
|
fprintf(stderr, "ERR Pack::init bad n=%d\n", (int)n);
|
|
throw Error(ERR_BAD_PARAMETER);
|
|
}
|
|
n_ = n;
|
|
for (size_t i = 0; i < n; i++) {
|
|
tbl_[i] = &tbl[i];
|
|
}
|
|
}
|
|
const Xbyak::Reg64& operator[](size_t n) const
|
|
{
|
|
if (n >= n_) {
|
|
fprintf(stderr, "ERR Pack bad n=%d\n", (int)n);
|
|
throw Error(ERR_BAD_PARAMETER);
|
|
}
|
|
return *tbl_[n];
|
|
}
|
|
size_t size() const { return n_; }
|
|
/*
|
|
get tbl[pos, pos + num)
|
|
*/
|
|
Pack sub(size_t pos, size_t num = size_t(-1)) const
|
|
{
|
|
if (num == size_t(-1)) num = n_ - pos;
|
|
if (pos + num > n_) {
|
|
fprintf(stderr, "ERR Pack::sub bad pos=%d, num=%d\n", (int)pos, (int)num);
|
|
throw Error(ERR_BAD_PARAMETER);
|
|
}
|
|
Pack pack;
|
|
pack.n_ = num;
|
|
for (size_t i = 0; i < num; i++) {
|
|
pack.tbl_[i] = tbl_[pos + i];
|
|
}
|
|
return pack;
|
|
}
|
|
void put() const
|
|
{
|
|
for (size_t i = 0; i < n_; i++) {
|
|
printf("%s ", tbl_[i]->toString());
|
|
}
|
|
printf("\n");
|
|
}
|
|
};
|
|
|
|
class StackFrame {
|
|
#ifdef XBYAK64_WIN
|
|
static const int noSaveNum = 6;
|
|
static const int rcxPos = 0;
|
|
static const int rdxPos = 1;
|
|
#else
|
|
static const int noSaveNum = 8;
|
|
static const int rcxPos = 3;
|
|
static const int rdxPos = 2;
|
|
#endif
|
|
Xbyak::CodeGenerator *code_;
|
|
int pNum_;
|
|
int tNum_;
|
|
bool useRcx_;
|
|
bool useRdx_;
|
|
int saveNum_;
|
|
int P_;
|
|
bool makeEpilog_;
|
|
Xbyak::Reg64 pTbl_[4];
|
|
Xbyak::Reg64 tTbl_[10];
|
|
Pack p_;
|
|
Pack t_;
|
|
StackFrame(const StackFrame&);
|
|
void operator=(const StackFrame&);
|
|
public:
|
|
const Pack& p;
|
|
const Pack& t;
|
|
/*
|
|
make stack frame
|
|
@param sf [in] this
|
|
@param pNum [in] num of function parameter(0 <= pNum <= 4)
|
|
@param tNum [in] num of temporary register(0 <= tNum <= 10, with UseRCX, UseRDX)
|
|
@param stackSizeByte [in] local stack size
|
|
@param makeEpilog [in] automatically call close() if true
|
|
|
|
you can use
|
|
rax
|
|
gp0, ..., gp(pNum - 1)
|
|
gt0, ..., gt(tNum-1)
|
|
rcx if tNum & UseRCX
|
|
rdx if tNum & UseRDX
|
|
rsp[0..stackSizeByte - 1]
|
|
*/
|
|
StackFrame(Xbyak::CodeGenerator *code, int pNum, int tNum = 0, int stackSizeByte = 0, bool makeEpilog = true)
|
|
: code_(code)
|
|
, pNum_(pNum)
|
|
, tNum_(tNum & ~(UseRCX | UseRDX))
|
|
, useRcx_((tNum & UseRCX) != 0)
|
|
, useRdx_((tNum & UseRDX) != 0)
|
|
, saveNum_(0)
|
|
, P_(0)
|
|
, makeEpilog_(makeEpilog)
|
|
, p(p_)
|
|
, t(t_)
|
|
{
|
|
using namespace Xbyak;
|
|
if (pNum < 0 || pNum > 4) throw Error(ERR_BAD_PNUM);
|
|
const int allRegNum = pNum + tNum_ + (useRcx_ ? 1 : 0) + (useRdx_ ? 1 : 0);
|
|
if (allRegNum < pNum || allRegNum > 14) throw Error(ERR_BAD_TNUM);
|
|
const Reg64& _rsp = code->rsp;
|
|
const AddressFrame& _ptr = code->ptr;
|
|
saveNum_ = (std::max)(0, allRegNum - noSaveNum);
|
|
const int *tbl = getOrderTbl() + noSaveNum;
|
|
P_ = saveNum_ + (stackSizeByte + 7) / 8;
|
|
if (P_ > 0 && (P_ & 1) == 0) P_++; // here (rsp % 16) == 8, then increment P_ for 16 byte alignment
|
|
P_ *= 8;
|
|
if (P_ > 0) code->sub(_rsp, P_);
|
|
#ifdef XBYAK64_WIN
|
|
for (int i = 0; i < (std::min)(saveNum_, 4); i++) {
|
|
code->mov(_ptr [_rsp + P_ + (i + 1) * 8], Reg64(tbl[i]));
|
|
}
|
|
for (int i = 4; i < saveNum_; i++) {
|
|
code->mov(_ptr [_rsp + P_ - 8 * (saveNum_ - i)], Reg64(tbl[i]));
|
|
}
|
|
#else
|
|
for (int i = 0; i < saveNum_; i++) {
|
|
code->mov(_ptr [_rsp + P_ - 8 * (saveNum_ - i)], Reg64(tbl[i]));
|
|
}
|
|
#endif
|
|
int pos = 0;
|
|
for (int i = 0; i < pNum; i++) {
|
|
pTbl_[i] = Xbyak::Reg64(getRegIdx(pos));
|
|
}
|
|
for (int i = 0; i < tNum_; i++) {
|
|
tTbl_[i] = Xbyak::Reg64(getRegIdx(pos));
|
|
}
|
|
if (useRcx_ && rcxPos < pNum) code_->mov(code_->r10, code_->rcx);
|
|
if (useRdx_ && rdxPos < pNum) code_->mov(code_->r11, code_->rdx);
|
|
p_.init(pTbl_, pNum);
|
|
t_.init(tTbl_, tNum_);
|
|
}
|
|
/*
|
|
make epilog manually
|
|
@param callRet [in] call ret() if true
|
|
*/
|
|
void close(bool callRet = true)
|
|
{
|
|
using namespace Xbyak;
|
|
const Reg64& _rsp = code_->rsp;
|
|
const AddressFrame& _ptr = code_->ptr;
|
|
const int *tbl = getOrderTbl() + noSaveNum;
|
|
#ifdef XBYAK64_WIN
|
|
for (int i = 0; i < (std::min)(saveNum_, 4); i++) {
|
|
code_->mov(Reg64(tbl[i]), _ptr [_rsp + P_ + (i + 1) * 8]);
|
|
}
|
|
for (int i = 4; i < saveNum_; i++) {
|
|
code_->mov(Reg64(tbl[i]), _ptr [_rsp + P_ - 8 * (saveNum_ - i)]);
|
|
}
|
|
#else
|
|
for (int i = 0; i < saveNum_; i++) {
|
|
code_->mov(Reg64(tbl[i]), _ptr [_rsp + P_ - 8 * (saveNum_ - i)]);
|
|
}
|
|
#endif
|
|
if (P_ > 0) code_->add(_rsp, P_);
|
|
|
|
if (callRet) code_->ret();
|
|
}
|
|
~StackFrame()
|
|
{
|
|
if (!makeEpilog_) return;
|
|
try {
|
|
close();
|
|
} catch (std::exception& e) {
|
|
printf("ERR:StackFrame %s\n", e.what());
|
|
exit(1);
|
|
} catch (...) {
|
|
printf("ERR:StackFrame otherwise\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
private:
|
|
const int *getOrderTbl() const
|
|
{
|
|
using namespace Xbyak;
|
|
static const int tbl[] = {
|
|
#ifdef XBYAK64_WIN
|
|
Operand::RCX, Operand::RDX, Operand::R8, Operand::R9, Operand::R10, Operand::R11, Operand::RDI, Operand::RSI,
|
|
#else
|
|
Operand::RDI, Operand::RSI, Operand::RDX, Operand::RCX, Operand::R8, Operand::R9, Operand::R10, Operand::R11,
|
|
#endif
|
|
Operand::RBX, Operand::RBP, Operand::R12, Operand::R13, Operand::R14, Operand::R15
|
|
};
|
|
return &tbl[0];
|
|
}
|
|
int getRegIdx(int& pos) const
|
|
{
|
|
assert(pos < 14);
|
|
using namespace Xbyak;
|
|
const int *tbl = getOrderTbl();
|
|
int r = tbl[pos++];
|
|
if (useRcx_) {
|
|
if (r == Operand::RCX) { return Operand::R10; }
|
|
if (r == Operand::R10) { r = tbl[pos++]; }
|
|
}
|
|
if (useRdx_) {
|
|
if (r == Operand::RDX) { return Operand::R11; }
|
|
if (r == Operand::R11) { return tbl[pos++]; }
|
|
}
|
|
return r;
|
|
}
|
|
};
|
|
#endif
|
|
|
|
} } // end of util
|
|
#endif
|