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benchmiaoes.c
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benchmiaoes.c
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#define __GNU_SOURCE
#include <time.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/mman.h>
asm (
"___d:\n\t"
".8byte 0xabcedf0123456789\n\t"
);
#define PAGE_SIZE (1 << 20)
#define DUMMY_SIZE 16384
static inline double second(){
struct timespec _t;
clock_gettime(CLOCK_REALTIME, &_t);
return _t.tv_sec + _t.tv_nsec/1.0e9;
}
static inline long long nano_second(){
struct timespec _t;
clock_gettime(CLOCK_REALTIME, &_t);
return _t.tv_sec * 1000000000ll + _t.tv_nsec;
}
#define FIVE ONE ONE ONE ONE ONE
#define TEN FIVE FIVE
#define FIFITY TEN TEN TEN TEN TEN
#define HUNDRED FIFITY FIFITY
#define FHUNDRED HUNDRED HUNDRED HUNDRED HUNDRED HUNDRED
#define THOUSAND FHUNDRED FHUNDRED
#define FTHOUSAND THOUSAND THOUSAND THOUSAND THOUSAND THOUSAND
#define TENTHOUSAND FTHOUSAND FTHOUSAND
#ifndef __INNER_COUNT_NUM
#define __INNER_COUNT_NUM FIFITY
#endif
#ifndef __INNER_COUNT
#define __INNER_COUNT 50ULL
#endif
// How do I turn a macro into a string using cpp?
// https://stackoverflow.com/questions/6852920/
#define _STR(str) #str
#define STRING(str) _STR(str)
// #ifndef __LOOP_COUNT
// #define __LOOP_COUNT 2000000000ULL
// #endif
static size_t __LOOP_COUNT = 20000000;
uint8_t dummy[DUMMY_SIZE] __attribute__ ((aligned (16384)));
size_t self_pointer = (size_t)&self_pointer;
size_t self_pointer2 = (size_t)&self_pointer;
// 1 freq
uint64_t __attribute__ ((noinline)) freq(size_t cnt){
uint64_t res;
#undef ONE
#define ONE "add %2, %2\n\t"
asm volatile(
".align 256 \n\t"
"1: \n\t"
__INNER_COUNT_NUM
"dec %1 \n\t"
"jne 1b \n\t"
"movq %2, %0\n\t"
:"=r"(res)
:"r"(cnt), "r"(self_pointer)
:"memory");
return res;
}
uint64_t freq_test() {
freq(10000);
double begin = second();
uint64_t res = freq(__LOOP_COUNT);
double end = second();
double f = (__LOOP_COUNT * __INNER_COUNT) / 1000000000.0 / (end - begin);
printf("frequency:%f GHz, one cycle:%f ns\n", f, 1/f);
return res;
}
// 2 bcc
uint64_t bcc(void){
uint64_t res;
#undef ONE
#if defined(__x86_64__)
asm volatile(
"1: \n\t"
"add %2, %2\n\t"
"sub $1, %1 \n\t"
"jnz 1b \n\t"
"mov %2, %0\n\t"
: "=r"(res)
: "r"(__INNER_COUNT * __LOOP_COUNT), "r"(self_pointer)
: "rax",
"memory");
#endif
return res;
}
uint64_t bcc_test(void) {
double begin = second();
uint64_t res = bcc();
double end = second();
printf("simple add/bcc:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 3 jr
uint64_t jr(void){
uint64_t res;
#undef ONE
#define ONE "0: \n\t" \
"add %2, %2\n\t" \
"lea 0f(%%rip), %%rax\n\t" \
"jmp *%%rax\n\t"
asm volatile(
"1: \n\t"
__INNER_COUNT_NUM
"0: sub $1, %1 \n\t"
"jnz 1b \n\t"
"mov %2, %0\n\t"
: "=r"(res)
: "r"(__LOOP_COUNT), "r"(self_pointer)
: "rax",
"memory");
return res;
}
uint64_t jr_test(void) {
double begin = second();
uint64_t res = jr();
double end = second();
printf("simple jr:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 4 call_ret
asm (
"foo_ret: \n\t"
"add %rax, %rax\n\t"
"ret \n\t"
);
uint64_t call_ret(void){
uint64_t res;
#undef ONE
#define ONE "call foo_ret\n\t"
asm volatile(
"mov %2, %%rax\n\t"
"mov %1, %%rbx\n\t"
"1: \n\t"
__INNER_COUNT_NUM
"0: sub $1, %%rbx \n\t"
"jnz 1b \n\t"
"mov %%rax, %0\n\t"
: "=r"(res)
: "r"(__LOOP_COUNT), "r"(self_pointer)
: "memory", "rax", "rbx");
return res;
}
uint64_t call_ret_test(void) {
double begin = second();
uint64_t res = call_ret();
double end = second();
printf("simple call_ret:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 14 indirect call, call_reg_ret
asm (
"foo_ret1: \n\t"
"add %rax, %rax\n\t"
"ret \n\t"
);
uint64_t call_reg_ret(void){
uint64_t res;
#undef ONE
#define ONE "call *%%rcx\n\t"
asm volatile(
"mov $foo_ret1, %%rcx\n\t"
"mov %2, %%rax\n\t"
"mov %1, %%rbx\n\t"
"1: \n\t"
__INNER_COUNT_NUM
"0: sub $1, %%rbx \n\t"
"jnz 1b \n\t"
"mov %%rax, %0\n\t"
: "=r"(res)
: "r"(__LOOP_COUNT), "r"(self_pointer)
: "memory", "rax", "rbx", "rcx");
return res;
}
uint64_t call_reg_ret_test(void) {
double begin = second();
uint64_t res = call_reg_ret();
double end = second();
printf("simple call_ret reg:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 5 base_index_imm
#define base_index_imm \
asm volatile( \
"1: \n\t" \
__INNER_COUNT_NUM \
"0: sub $1, %1 \n\t" \
"jnz 1b \n\t" \
"mov %%rbx, %0" \
: "=r"(res) \
: "r"(__LOOP_COUNT), "r"(base), "r"(index1), "r"(index2), "r"(index3) \
: "rbx", "memory");
uint64_t base_index_imm_test(long arg1) {
uint64_t res;
long base = (long)aligned_alloc(64, 1 << 20);
long index1 = 1 << 10;
long index2 = base / 4 + 64;
long index3 = base + 64;
double begin = second();
switch (arg1)
{
case 0: {
#undef ONE // 4i__
#define ONE "sub $1, %4\n\tadd $1, %4\n\tmov (,%4,4), %%rbx\n\t"
base_index_imm
break;
}
case 1: {
#undef ONE // 4i_d
#define ONE "sub $1, %4\n\tadd $1, %4\n\tmov 64(,%4,4), %%rbx\n\t\n\t"
base_index_imm
break;
}
case 2: {
#undef ONE // __b_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov (%2), %%rbx\n\t"
base_index_imm
break;
}
case 3: {
#undef ONE // __bd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov 64(%2), %%rbx\n\t"
base_index_imm
break;
}
case 4: {
#undef ONE // 4ib_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov (%2,%3,4), %%rbx\n\t"
base_index_imm
break;
}
case 5: {
#undef ONE // 4ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov 64(%2,%3,4), %%rbx\n\t"
base_index_imm
break;
}
case 6: {
#undef ONE // _ib_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov (%2,%3), %%rbx\n\t"
base_index_imm
break;
}
case 7: {
#undef ONE // _ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov 64(%2,%3), %%rbx\n\t"
base_index_imm
break;
}
case 8: {
#undef ONE // _i_d
#define ONE "sub $1, %5\n\tadd $1, %5\n\tmov 64(,%5), %%rbx\n\t"
base_index_imm
break;
}
case 9: {
#undef ONE // _i_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov (,%5), %%rbx\n\t"
base_index_imm
break;
}
case 10: {
#undef ONE // 8ib_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov (%2,%3,8), %%rbx\n\t"
base_index_imm
break;
}
case 11: {
#undef ONE // 8ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tmov 64(%2,%3,8), %%rbx\n\t"
base_index_imm
break;
}
case 12: {
#undef ONE // 4ib_ with disturb
#define ONE "sub $1, %2\n\tadd $1, %2\n\t" \
"sub $1, %3\n\tadd $1, %3\n\t" \
"mov (%2,%3,4), %%rbx\n\t"
base_index_imm
break;
}
case 13: {
#undef ONE // 8ib_ with disturb
#define ONE "sub $1, %2\n\tadd $1, %2\n\t" \
"sub $1, %3\n\tadd $1, %3\n\t" \
"mov (%2,%3,8), %%rbx\n\t"
base_index_imm
break;
}
case 14: {
#undef ONE // ___d
#define ONE "\n\t" \
"sub $1, %2\n\tadd $1, %2\n\tmov ___d, %%rbx\n\t"
base_index_imm
break;
}
// use add to test
case 15: {
#undef ONE // _i_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd (,%5), %%rbx\n\t"
base_index_imm
break;
}
case 16: {
#undef ONE // __b_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd (%2), %%rbx\n\t"
base_index_imm
break;
}
case 17: {
#undef ONE // ___d
#define ONE "\n\t" \
"sub $1, %2\n\tadd $1, %2\n\tadd ___d, %%rbx\n\t"
base_index_imm
break;
}
case 18: {
#undef ONE // 4i__
#define ONE "sub $1, %4\n\tadd $1, %4\n\tadd (,%4,4), %%rbx\n\t"
base_index_imm
break;
}
case 19: {
#undef ONE // _ib_
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd (%2,%3), %%rbx\n\t"
base_index_imm
break;
}
case 20: {
#undef ONE // _i_d
#define ONE "sub $1, %5\n\tadd $1, %5\n\tadd 64(,%5), %%rbx\n\t"
base_index_imm
break;
}
case 21: {
#undef ONE // __bd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 64(%2), %%rbx\n\t"
base_index_imm
break;
}
case 22: {
#undef ONE // 4ib_ with disturb
#define ONE "sub $1, %2\n\tadd $1, %2\n\t" \
"sub $1, %3\n\tadd $1, %3\n\t" \
"add (%2,%3,4), %%rbx\n\t"
base_index_imm
break;
}
case 23: {
#undef ONE // 8ib_ with disturb
#define ONE "sub $1, %2\n\tadd $1, %2\n\t" \
"sub $1, %3\n\tadd $1, %3\n\t" \
"add (%2,%3,8), %%rbx\n\t"
base_index_imm
break;
}
case 24: {
#undef ONE // 4i_d
#define ONE "sub $1, %4\n\tadd $1, %4\n\tadd 64(,%4,4), %%rbx\n\t\n\t"
base_index_imm
break;
}
case 25: {
#undef ONE // _ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 64(%2,%3), %%rbx\n\t"
base_index_imm
break;
}
case 26: {
#undef ONE // 4ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 64(%2,%3,4), %%rbx\n\t"
base_index_imm
break;
}
case 27: {
#undef ONE // 8ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 64(%2,%3,8), %%rbx\n\t"
base_index_imm
break;
}
// 32bit disp test
case 28: {
base += 0x3ef;
#undef ONE // __bd disp=0xfffffc11
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd -0x3ef(%2), %%rbx\n\t"
base_index_imm
break;
}
case 29: {
base += 0x43ef;
#undef ONE // __bd disp=0xffffbc11
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd -0x43ef(%2), %%rbx\n\t"
base_index_imm
break;
}
case 30: {
base += 0x83ef;
#undef ONE // __bd disp=0xffff7c11
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd -0x83ef(%2), %%rbx\n\t"
base_index_imm
break;
}
case 31: {
base += 0x512343ef;
#undef ONE // __bd disp=0xaedcbc11
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd -0x512343ef(%2), %%rbx\n\t"
base_index_imm
break;
}
case 32: {
#undef ONE // 4ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 0x12364(%2,%3,4), %%rbx\n\t"
base_index_imm
break;
}
case 33: {
#undef ONE // 4ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 0x4(%%rip), %%rbx\n\t"
base_index_imm
break;
}
case 34: {
#undef ONE // 4ibd
#define ONE "sub $1, %2\n\tadd $1, %2\n\tadd 0x12345(%%rip), %%rbx\n\t"
base_index_imm
break;
}
default:
break;
}
double end = second();
printf("simple base_index_imm_%ld:%f ns\n", arg1, (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 18 cmp_jcc
#define cmp_jcc \
asm volatile( \
"1: \n\t" \
__INNER_COUNT_NUM \
"0: sub $1, %1 \n\t" \
"jnz 1b \n\t" \
"mov %%rbx, %0" \
: "=r"(res) \
: "r"(__LOOP_COUNT), "r"(base), "r"(index1), "r"(index2) \
: "rbx", "memory");
uint64_t cmp_jcc_test(long arg1) {
uint64_t res;
long base = (long)aligned_alloc(64, 1 << 20);
long index1 = 1 << 10;
long index2 = base / 4 + 64;
double begin = second();
switch (arg1)
{
case 0: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jae 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 1: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jbe 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 2: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jge 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 3: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jle 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 4: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp 0x1004(,%4,4), %%rax\n\t" \
"jo 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 5: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"js 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 6: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jp 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 7: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jae 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 8: {
#undef ONE
#define ONE "sub $1, %4\n\tadd $1, %4\n\t" \
"cmp (,%4,4), %%rax\n\t" \
"jne 2f\n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 9: {
#undef ONE
#define ONE "mov $10, %%rax\n\t" \
"cmp $10, %%al\n\t" \
"jz 2f \n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 10: {
#undef ONE
#define ONE "mov $10, %%rax\n\t" \
"cmp $10, %%ax\n\t" \
"jz 2f \n\t" \
"2: \n\t"
cmp_jcc
break;
}
case 11: {
#undef ONE
#define ONE "mov $10, %%rax\n\t" \
"mov $20, %%rbx\n\t" \
"cmp %%eax, %%ebx\n\t" \
"jz 2f \n\t" \
"2: \n\t"
cmp_jcc
break;
}
default:
break;
}
double end = second();
printf("simple cmp_jcc_%ld:%f ns\n", arg1, (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 6 push_pop
uint64_t push_pop(void){
uint64_t res;
#undef ONE
#define ONE \
"push %%rax\n\t" \
"jmp 3f\n\t" \
"3: \n\t" \
"add %%rsp, %%rax\n\t" \
"pop %%rax\n\t" \
"jmp 2f\n\t" \
"2: \n\t"
asm volatile(
"1: \n\t"
__INNER_COUNT_NUM
"0: sub $1, %1 \n\t"
"jnz 1b \n\t"
"mov %%rax, %0\n\t"
: "=r" (res)
: "r"(__LOOP_COUNT)
: "rax",
"memory");
return res;
}
uint64_t push_pop_test(void) {
double begin = second();
uint64_t res = push_pop();
double end = second();
printf("simple push_pop:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 7 lahf
uint64_t lahf(void){
uint64_t res;
#undef ONE
#define ONE "add %%rax, %%rbx\n\t" "lahf \n\t"
asm volatile(
"1: \n\t"
__INNER_COUNT_NUM
"0: sub $1, %1 \n\t"
"jnz 1b \n\t"
"mov %%rbx, %0\n\t"
: "=r"(res)
: "r"(__LOOP_COUNT)
: "rax", "rbx", "memory");
return res;
}
uint64_t lahf_test(void) {
double begin = second();
uint64_t res = lahf();
double end = second();
printf("simple lahf:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 8 partial_reg
#undef ONE
#define _partial_reg \
asm volatile( \
"1: \n\t" \
__INNER_COUNT_NUM \
"0: sub $1, %1 \n\t" \
"jnz 1b \n\t" \
"mov %%rax, %0\n\t" \
: "=r"(res) \
: "r"(__LOOP_COUNT) \
: "rax", "rbx", "memory");
uint64_t partial_reg(long arg1){
uint64_t res;
switch(arg1) {
case 0: {
#undef ONE
#define ONE "add %%bh, %%al\n\t"
_partial_reg
break;
}
case 1: {
#undef ONE
#define ONE "add %%bl, %%ah\n\t"
_partial_reg
break;
}
case 2: {
#undef ONE
#define ONE "add %%bh, %%ah\n\t"
_partial_reg
break;
}
case 3: {
#undef ONE
#define ONE "add %%ah, %%ah\n\t"
_partial_reg
break;
}
case 4: {
#undef ONE
#define ONE "add %%al, %%ah\n\t"
_partial_reg
break;
}
case 5: {
#undef ONE
#define ONE "add %%bx, %%ax\n\t"
_partial_reg
break;
}
case 6: {
#undef ONE
#define ONE "add %%ebx, %%eax\n\t"
_partial_reg
break;
}
case 7: {
#undef ONE
#define ONE "add $2, %%ax\n\t"
_partial_reg
break;
}
case 8: {
#undef ONE
#define ONE "add $2, %%ah\n\t"
_partial_reg
break;
}
}
return res;
}
uint64_t partial_reg_test(long arg1) {
double begin = second();
uint64_t res = partial_reg(arg1);
double end = second();
printf("simple partial_reg:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 9 load_imm32
#define _load_imm32 \
asm volatile( \
"1: \n\t" \
__INNER_COUNT_NUM \
"0: sub $1, %1 \n\t" \
"jnz 1b \n\t" \
"mov %%rax, %0\n\t" \
: "=r"(res) \
: "r"(__LOOP_COUNT) \
: "rax", "rbx", "memory");
uint64_t load_imm32(long arg1){
uint64_t res;
switch (arg1) {
case 0: {
#undef ONE
#define ONE "add $0xfffffc11, %%eax\n\t"
_load_imm32
break;
}
case 1: {
#undef ONE
#define ONE "add $0xffffbc11, %%eax\n\t"
_load_imm32
break;
}
case 2: {
#undef ONE
#define ONE "add $0xaedcbc11, %%eax\n\t"
_load_imm32
break;
}
case 3: {
#undef ONE
#define ONE "add $0xffff7c11, %%eax\n\t"
_load_imm32
break;
}
}
return res;
}
uint64_t load_imm32_test(long arg1) {
double begin = second();
uint64_t res = load_imm32(arg1);
double end = second();
printf("simple load_imm32:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 10 load_imm64
#define _load_imm64 \
asm volatile( \
"1: \n\t" \
__INNER_COUNT_NUM \
"0: sub $1, %1 \n\t" \
"jnz 1b \n\t" \
"mov %%rbx, %0\n\t" \
: "=r"(res) \
: "r"(__LOOP_COUNT) \
: "rax", "rbx", "memory");
uint64_t load_imm64(long arg1){
uint64_t res;
switch (arg1) {
case 0: {
#undef ONE
#define ONE "movabs $0xfffffffffffff704, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 1: {
#undef ONE
#define ONE "movabs $0xffffffffffffa304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 2: {
#undef ONE
#define ONE "movabs $0xffffffffff720304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 3: {
#undef ONE
#define ONE "movabs $0xffffffff73020304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 4: {
#undef ONE
#define ONE "movabs $0xfffffff701020304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 5: {
#undef ONE
#define ONE "movabs $0xffff7c1101020304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 6: {
#undef ONE
#define ONE "movabs $0xfff7bc1101020304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 7: {
#undef ONE
#define ONE "movabs $0xabfabc1101020304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 8: { // zero hole in [15:0] for AArch64
#undef ONE
#define ONE "movabs $0xabfabc1153040000, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 9: { // zero hole in [11:0] for LoongArch
#undef ONE
#define ONE "movabs $0xabfabc1153045000, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 10: { // zero hole in [31:16] for AArch64
#undef ONE
#define ONE "movabs $0xabfabc1100005304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 11: { // zero hole in [31:12] for LoongArch
#undef ONE
#define ONE "movabs $0xabfabc1100000304, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 12: { // simple bitmask pattern for AArch64
#undef ONE
#define ONE "movabs $0x3333333333333333, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 13: { // complex bitmask pattern for AArch64
#undef ONE
// can be load by two AArch64 instructions
// andi tmp, 0x3333333333333333, zero;
// xor tmp, 0xFF00007FFF00007F, tmp;
#define ONE "movabs $0xCC33334CCC33334C, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
case 14: { // complex bitmask pattern for AArch64
#undef ONE
// can be load by two AArch64 instructions
// andi tmp, 0x3333333333333333, zero;
// xor tmp, 0x7FFF00007FFF0000, tmp;
#define ONE "movabs $0x4CCC33334CCC3333, %%rax\n\tadd %%rax, %%rbx\n\t"
_load_imm64
break;
}
}
return res;
}
uint64_t load_imm64_test(long arg1) {
double begin = second();
uint64_t res = load_imm64(arg1);
double end = second();
printf("simple load_imm64:%f ns\n", (end - begin) / ((__LOOP_COUNT * __INNER_COUNT) / 1000000000.0));
return res;
}
// 11 extension
#define _extension \
asm volatile( \
"1: \n\t" \
__INNER_COUNT_NUM \
"0: sub $1, %1 \n\t" \
"jnz 1b \n\t" \
"mov %%rbx, %0" \
: "=r"(res) \
: "r"(__LOOP_COUNT), "r"(num) \
: "rax", "rbx", "memory");
uint64_t extension_test(long arg1) {
uint64_t res;
uint64_t num = 0xabcdef9876543210ull;
double begin = second();
switch (arg1) {
case 0: {
#undef ONE // low -> 16
#define ONE "movsx %b2, %%ax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 1: {
#undef ONE // high -> 16
#define ONE "movsx %h2, %%ax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 2: {
#undef ONE // low -> 32
#define ONE "movsx %b2, %%eax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 3: {
#undef ONE // high -> 32
#define ONE "movsx %h2, %%eax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 4: {
#undef ONE // 16 -> 32
#define ONE "movsx %w2, %%eax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 5: {
#undef ONE // 16 -> 64
#define ONE "movsx %w2, %%rax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 6: {
#undef ONE // 32 -> 64
#define ONE "movsxd %k2, %%rax\n\tadd %%rax, %%rbx\n\t"
_extension
break;
}
case 7: {