416 lines
8.2 KiB
C++
416 lines
8.2 KiB
C++
#define XBYAK_NO_OP_NAMES
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#include <xbyak/xbyak_util.h>
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#ifdef XBYAK32
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#error "this sample is for only 64-bit mode"
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#endif
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using namespace Xbyak::util;
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struct Code : public Xbyak::CodeGenerator {
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void gen1()
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{
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StackFrame sf(this, 1);
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mov(rax, sf.p[0]);
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}
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void gen2()
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{
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StackFrame sf(this, 2);
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lea(rax, ptr [sf.p[0] + sf.p[1]]);
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}
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void gen3()
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{
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StackFrame sf(this, 3);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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}
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void gen4()
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{
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StackFrame sf(this, 4);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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add(rax, sf.p[3]);
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}
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void gen5()
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{
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StackFrame sf(this, 4, UseRCX);
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xor_(rcx, rcx);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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add(rax, sf.p[3]);
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}
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void gen6()
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{
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StackFrame sf(this, 4, UseRCX | UseRDX);
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xor_(rcx, rcx);
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xor_(rdx, rdx);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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add(rax, sf.p[3]);
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}
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void gen7()
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{
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StackFrame sf(this, 3, UseRCX | UseRDX);
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xor_(rcx, rcx);
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xor_(rdx, rdx);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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}
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void gen8()
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{
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StackFrame sf(this, 3, 3 | UseRCX | UseRDX);
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xor_(rcx, rcx);
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xor_(rdx, rdx);
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mov(sf.t[0], 1);
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mov(sf.t[1], 2);
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mov(sf.t[2], 3);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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}
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void gen9()
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{
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StackFrame sf(this, 3, 3 | UseRCX | UseRDX, 32);
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xor_(rcx, rcx);
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xor_(rdx, rdx);
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mov(sf.t[0], 1);
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mov(sf.t[1], 2);
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mov(sf.t[2], 3);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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mov(ptr [rsp + 8 * 0], rax);
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mov(ptr [rsp + 8 * 1], rax);
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mov(ptr [rsp + 8 * 2], rax);
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mov(ptr [rsp + 8 * 3], rax);
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}
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void gen10()
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{
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StackFrame sf(this, 4, 8 | UseRCX | UseRDX, 32);
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xor_(rcx, rcx);
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xor_(rdx, rdx);
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for (int i = 0; i < 8; i++) {
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mov(sf.t[i], i);
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}
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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add(rax, sf.p[3]);
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mov(ptr [rsp + 8 * 0], rax);
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mov(ptr [rsp + 8 * 1], rax);
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mov(ptr [rsp + 8 * 2], rax);
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mov(ptr [rsp + 8 * 3], rax);
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}
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void gen11()
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{
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StackFrame sf(this, 0, UseRCX);
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xor_(rcx, rcx);
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mov(rax, 3);
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}
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void gen12()
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{
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StackFrame sf(this, 4, UseRDX);
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xor_(rdx, rdx);
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mov(rax, sf.p[0]);
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add(rax, sf.p[1]);
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add(rax, sf.p[2]);
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add(rax, sf.p[3]);
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}
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/*
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int64_t f(const int64_t a[13]) { return sum-of-a[]; }
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*/
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void gen13()
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{
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StackFrame sf(this, 1, 13);
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for (int i = 0; i < 13; i++) {
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mov(sf.t[i], ptr[sf.p[0] + i * 8]);
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}
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mov(rax, sf.t[0]);
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for (int i = 1; i < 13; i++) {
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add(rax, sf.t[i]);
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}
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}
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/*
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same as gen13
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*/
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void gen14()
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{
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StackFrame sf(this, 1, 11 | UseRCX | UseRDX);
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Pack t = sf.t;
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t.append(rcx);
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t.append(rdx);
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for (int i = 0; i < 13; i++) {
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mov(t[i], ptr[sf.p[0] + i * 8]);
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}
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mov(rax, t[0]);
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for (int i = 1; i < 13; i++) {
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add(rax, t[i]);
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}
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}
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/*
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return (1 << 15) - 1;
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*/
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void gen15()
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{
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StackFrame sf(this, 0, 14, 8);
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Pack t = sf.t;
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t.append(rax);
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for (int i = 0; i < 15; i++) {
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mov(t[i], 1 << i);
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}
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mov(qword[rsp], 0);
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for (int i = 0; i < 15; i++) {
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add(ptr[rsp], t[i]);
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}
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mov(rax, ptr[rsp]);
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}
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};
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struct Code2 : Xbyak::CodeGenerator {
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Code2()
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: Xbyak::CodeGenerator(4096 * 32)
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{
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}
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void gen(int pNum, int tNum, int stackSizeByte)
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{
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StackFrame sf(this, pNum, tNum, stackSizeByte);
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if (tNum & UseRCX) xor_(rcx, rcx);
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if (tNum & UseRDX) xor_(rdx, rdx);
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for (int i = 0, n = tNum & ~(UseRCX | UseRDX); i < n; i++) {
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mov(sf.t[i], 5);
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}
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for (int i = 0; i < stackSizeByte; i++) {
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mov(byte [rsp + i], 0);
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}
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mov(rax, 1);
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for (int i = 0; i < pNum; i++) {
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add(rax, sf.p[i]);
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}
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}
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void gen2(int pNum, int tNum, int stackSizeByte)
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{
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StackFrame sf(this, pNum, tNum, stackSizeByte);
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mov(rax, rsp);
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}
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};
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static int errNum = 0;
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void check(int x, int y)
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{
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if (x != y) {
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printf("err x=%d, y=%d\n", x, y);
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errNum++;
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}
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}
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void verify(const Xbyak::uint8 *f, int pNum)
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{
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switch (pNum) {
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case 0:
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check(1, reinterpret_cast<int (*)()>(f)());
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return;
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case 1:
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check(11, reinterpret_cast<int (*)(int)>(f)(10));
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return;
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case 2:
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check(111, reinterpret_cast<int (*)(int, int)>(f)(10, 100));
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return;
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case 3:
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check(1111, reinterpret_cast<int (*)(int, int, int)>(f)(10, 100, 1000));
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return;
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case 4:
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check(11111, reinterpret_cast<int (*)(int, int, int, int)>(f)(10, 100, 1000, 10000));
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return;
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default:
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printf("ERR pNum=%d\n", pNum);
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exit(1);
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}
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}
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void testAll()
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{
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Code2 code;
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for (int stackSize = 0; stackSize < 32; stackSize += 7) {
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for (int pNum = 0; pNum < 4; pNum++) {
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for (int mode = 0; mode < 4; mode++) {
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int maxNum = 0;
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int opt = 0;
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if (mode == 0) {
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maxNum = 10;
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} else if (mode == 1) {
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maxNum = 9;
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opt = UseRCX;
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} else if (mode == 2) {
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maxNum = 9;
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opt = UseRDX;
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} else {
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maxNum = 8;
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opt = UseRCX | UseRDX;
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}
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for (int tNum = 0; tNum < maxNum; tNum++) {
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// printf("pNum=%d, tNum=%d, stackSize=%d\n", pNum, tNum | opt, stackSize);
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const Xbyak::uint8 *f = code.getCurr();
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code.gen(pNum, tNum | opt, stackSize);
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verify(f, pNum);
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/*
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check rsp is 16-byte aligned if stackSize > 0
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*/
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if (stackSize > 0) {
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Code2 c2;
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c2.gen2(pNum, tNum | opt, stackSize);
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uint64_t addr = c2.getCode<uint64_t (*)()>()();
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check(addr % 16, 0);
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}
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}
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}
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}
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}
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}
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void testPartial()
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{
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Code code;
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int (*f1)(int) = code.getCurr<int (*)(int)>();
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code.gen1();
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check(5, f1(5));
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int (*f2)(int, int) = code.getCurr<int (*)(int, int)>();
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code.gen2();
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check(9, f2(3, 6));
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int (*f3)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
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code.gen3();
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check(14, f3(1, 4, 9));
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int (*f4)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
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code.gen4();
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check(30, f4(1, 4, 9, 16));
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int (*f5)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
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code.gen5();
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check(23, f5(2, 5, 7, 9));
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int (*f6)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
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code.gen6();
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check(18, f6(3, 4, 5, 6));
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int (*f7)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
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code.gen7();
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check(12, f7(3, 4, 5));
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int (*f8)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
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code.gen8();
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check(23, f8(5, 8, 10));
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int (*f9)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
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code.gen9();
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check(60, f9(10, 20, 30));
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int (*f10)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
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code.gen10();
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check(100, f10(10, 20, 30, 40));
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int (*f11)() = code.getCurr<int (*)()>();
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code.gen11();
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check(3, f11());
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int (*f12)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
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code.gen12();
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check(24, f12(3, 5, 7, 9));
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{
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int64_t tbl[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 };
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int64_t (*f13)(const int64_t*) = code.getCurr<int64_t (*)(const int64_t*)>();
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code.gen13();
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check(91, f13(tbl));
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int64_t (*f14)(const int64_t*) = code.getCurr<int64_t (*)(const int64_t*)>();
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code.gen14();
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check(91, f14(tbl));
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}
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int (*f15)() = code.getCurr<int (*)()>();
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code.gen15();
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check((1 << 15) - 1, f15());
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}
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void put(const Xbyak::util::Pack& p)
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{
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for (size_t i = 0, n = p.size(); i < n; i++) {
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printf("%s ", p[i].toString());
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}
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printf("\n");
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}
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void verifyPack(const Xbyak::util::Pack& p, const int *tbl, size_t tblNum)
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{
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for (size_t i = 0; i < tblNum; i++) {
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check(p[i].getIdx(), tbl[i]);
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}
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}
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void testPack()
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{
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const int N = 10;
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Xbyak::Reg64 regTbl[N];
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for (int i = 0; i < N; i++) {
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regTbl[i] = Xbyak::Reg64(i);
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}
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Xbyak::util::Pack p(regTbl, N);
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const struct {
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int pos;
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int num;
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int tbl[10];
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} tbl[] = {
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{ 0, 10, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 } },
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{ 1, 9, { 1, 2, 3, 4, 5, 6, 7, 8, 9 } },
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{ 2, 8, { 2, 3, 4, 5, 6, 7, 8, 9 } },
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{ 3, 7, { 3, 4, 5, 6, 7, 8, 9 } },
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{ 4, 6, { 4, 5, 6, 7, 8, 9 } },
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{ 5, 5, { 5, 6, 7, 8, 9 } },
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{ 6, 4, { 6, 7, 8, 9 } },
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{ 7, 3, { 7, 8, 9 } },
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{ 8, 2, { 8, 9 } },
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{ 9, 1, { 9 } },
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{ 3, 5, { 3, 4, 5, 6, 7 } },
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};
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for (size_t i = 0; i < sizeof(tbl) / sizeof(*tbl); i++) {
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const int pos = tbl[i].pos;
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const int num = tbl[i].num;
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verifyPack(p.sub(pos, num), tbl[i].tbl, num);
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if (pos + num == N) {
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verifyPack(p.sub(pos), tbl[i].tbl, num);
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}
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}
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}
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int main()
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try
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{
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testAll();
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testPartial();
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testPack();
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printf("errNum=%d\n", errNum);
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} catch (std::exception& e) {
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printf("err %s\n", e.what());
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return 1;
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} catch (...) {
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puts("ERR");
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return 1;
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}
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