test/sf_test.cpp

#define XBYAK_NO_OP_NAMES
#include <xbyak/xbyak_util.h>

#ifdef XBYAK32
	#error "this sample is for only 64-bit mode"
#endif

using namespace Xbyak::util;

struct Code : public Xbyak::CodeGenerator {
	void gen1()
	{
		StackFrame sf(this, 1);
		mov(rax, sf.p(0));
	}
	void gen2()
	{
		StackFrame sf(this, 2);
		lea(rax, ptr [sf.p(0) + sf.p(1)]);
	}
	void gen3()
	{
		StackFrame sf(this, 3);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
	}
	void gen4()
	{
		StackFrame sf(this, 4);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
		add(rax, sf.p(3));
	}

	void gen5()
	{
		StackFrame sf(this, 4, UseRCX);
		xor_(rcx, rcx);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
		add(rax, sf.p(3));
	}

	void gen6()
	{
		StackFrame sf(this, 4, UseRCX | UseRDX);
		xor_(rcx, rcx);
		xor_(rdx, rdx);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
		add(rax, sf.p(3));
	}

	void gen7()
	{
		StackFrame sf(this, 3, UseRCX | UseRDX);
		xor_(rcx, rcx);
		xor_(rdx, rdx);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
	}

	void gen8()
	{
		StackFrame sf(this, 3, 3 | UseRCX | UseRDX);
		xor_(rcx, rcx);
		xor_(rdx, rdx);
		mov(sf.t(0), 1);
		mov(sf.t(1), 2);
		mov(sf.t(2), 3);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
	}

	void gen9()
	{
		StackFrame sf(this, 3, 3 | UseRCX | UseRDX, 32);
		xor_(rcx, rcx);
		xor_(rdx, rdx);
		mov(sf.t(0), 1);
		mov(sf.t(1), 2);
		mov(sf.t(2), 3);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
		mov(ptr [rsp + 8 * 0], rax);
		mov(ptr [rsp + 8 * 1], rax);
		mov(ptr [rsp + 8 * 2], rax);
		mov(ptr [rsp + 8 * 3], rax);
	}

	void gen10()
	{
		StackFrame sf(this, 4, 8 | UseRCX | UseRDX, 32);
		xor_(rcx, rcx);
		xor_(rdx, rdx);
		for (int i = 0; i < 8; i++) {
			mov(sf.t(i), i);
		}
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
		add(rax, sf.p(3));
		mov(ptr [rsp + 8 * 0], rax);
		mov(ptr [rsp + 8 * 1], rax);
		mov(ptr [rsp + 8 * 2], rax);
		mov(ptr [rsp + 8 * 3], rax);
	}

	void gen11()
	{
		StackFrame sf(this, 0, UseRCX);
		xor_(rcx, rcx);
		mov(rax, 3);
	}

	void gen12()
	{
		StackFrame sf(this, 4, UseRDX);
		xor_(rdx, rdx);
		mov(rax, sf.p(0));
		add(rax, sf.p(1));
		add(rax, sf.p(2));
		add(rax, sf.p(3));
	}
};

struct Code2 : Xbyak::CodeGenerator {
	Code2()
		: Xbyak::CodeGenerator(4096 * 32)
	{
	}
	void gen(int pNum, int tNum, int stackSizeByte)
	{
		StackFrame sf(this, pNum, tNum, stackSizeByte);
		if (tNum & UseRCX) xor_(rcx, rcx);
		if (tNum & UseRDX) xor_(rdx, rdx);
		for (int i = 0, n = tNum & ~(UseRCX | UseRDX); i < n; i++) {
			mov(sf.t(i), 5);
		}
		for (int i = 0; i < stackSizeByte; i++) {
			mov(byte [rsp + i], 0);
		}
		mov(rax, 1);
		for (int i = 0; i < pNum; i++) {
			add(rax, sf.p(i));
		}
	}
};

static int errNum = 0;
void check(int x, int y)
{
	if (x != y) {
		printf("err x=%d, y=%d\n", x, y);
		errNum++;
	}
}

void verify(const Xbyak::uint8 *f, int pNum)
{
	switch (pNum) {
	case 0:
		check(1, Xbyak::CastTo<int (*)()>(f)());
		return;
	case 1:
		check(11, Xbyak::CastTo<int (*)(int)>(f)(10));
		return;
	case 2:
		check(111, Xbyak::CastTo<int (*)(int, int)>(f)(10, 100));
		return;
	case 3:
		check(1111, Xbyak::CastTo<int (*)(int, int, int)>(f)(10, 100, 1000));
		return;
	case 4:
		check(11111, Xbyak::CastTo<int (*)(int, int, int, int)>(f)(10, 100, 1000, 10000));
		return;
	default:
		printf("ERR pNum=%d\n", pNum);
		exit(1);
	}
}

void testAll()
{
	Code2 code;
	for (int stackSize = 0; stackSize < 32; stackSize += 7) {
		for (int pNum = 0; pNum < 4; pNum++) {
			for (int mode = 0; mode < 4; mode++) {
				int maxNum = 0;
				int opt = 0;
				if (mode == 0) {
					maxNum = 10;
				} else if (mode == 1) {
					maxNum = 9;
					opt = UseRCX;
				} else if (mode == 2) {
					maxNum = 9;
					opt = UseRDX;
				} else {
					maxNum = 8;
					opt = UseRCX | UseRDX;
				}
				for (int tNum = 0; tNum < maxNum; tNum++) {
					printf("pNum=%d, tNum=%d, stackSize=%d\n", pNum, tNum | opt, stackSize);
					const Xbyak::uint8 *f = code.getCurr();
					code.gen(pNum, tNum | opt, stackSize);
					verify(f, pNum);
				}
			}
		}
	}
}

void testPartial()
{
	Code code;
	int (*f1)(int) = code.getCurr<int (*)(int)>();
	code.gen1();
	check(5, f1(5));

	int (*f2)(int, int) = code.getCurr<int (*)(int, int)>();
	code.gen2();
	check(9, f2(3, 6));

	int (*f3)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
	code.gen3();
	check(14, f3(1, 4, 9));

	int (*f4)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
	code.gen4();
	check(30, f4(1, 4, 9, 16));

	int (*f5)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
	code.gen5();
	check(23, f5(2, 5, 7, 9));

	int (*f6)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
	code.gen6();
	check(18, f6(3, 4, 5, 6));

	int (*f7)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
	code.gen7();
	check(12, f7(3, 4, 5));

	int (*f8)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
	code.gen8();
	check(23, f8(5, 8, 10));

	int (*f9)(int, int, int) = code.getCurr<int (*)(int, int, int)>();
	code.gen9();
	check(60, f9(10, 20, 30));

	int (*f10)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
	code.gen10();
	check(100, f10(10, 20, 30, 40));

	int (*f11)() = code.getCurr<int (*)()>();
	code.gen11();
	check(3, f11());

	int (*f12)(int, int, int, int) = code.getCurr<int (*)(int, int, int, int)>();
	code.gen12();
	check(24, f12(3, 5, 7, 9));
}

int main()
	try
{
	testAll();

	testPartial();
	printf("errNum=%d\n", errNum);
} catch (const Xbyak::Error& e) {
	printf("err %s\n", Xbyak::ConvertErrorToString(e));
	return 1;
} catch (...) {
	puts("ERR");
	return 1;
}