112 lines
1.9 KiB
C++
112 lines
1.9 KiB
C++
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#include <stdio.h>
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#include <stdlib.h>
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#include <memory.h>
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#define XBYAK_NO_OP_NAMES
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#include <xbyak/xbyak.h>
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struct A {
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int x_;
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int y_;
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A() : x_(3), y_(5) {}
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int func(int a, int b, int c, int d, int e) const { return x_ + y_ + a + b + c + d + e; }
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};
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#ifdef _MSC_VER
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#pragma warning(disable : 4510 4512 4610)
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#endif
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struct Code : public Xbyak::CodeGenerator {
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Code()
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{
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using namespace Xbyak;
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int RET_ADJ = 0;
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#ifdef XBYAK32
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#ifdef _WIN32
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const int PARA_ADJ = 0;
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RET_ADJ = 5 * 4;
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#else
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const int PARA_ADJ = 4;
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mov(ecx, ptr [esp + 4]);
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#endif
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#endif
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const struct {
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#ifdef XBYAK32
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const Reg32& self;
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#else
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const Reg64& self;
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#endif
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const Operand& a;
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const Operand& b;
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const Operand& c;
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const Operand& d;
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const Operand& e;
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} para = {
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#if defined(XBYAK64_WIN)
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rcx,
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edx,
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r8d,
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r9d,
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ptr [rsp + 8 * 5],
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ptr [rsp + 8 * 6],
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#elif defined(XBYAK64_GCC)
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rdi,
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esi,
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edx,
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ecx,
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r8d,
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r9d,
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#else
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ecx,
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ptr [esp + 4 + PARA_ADJ],
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ptr [esp + 8 + PARA_ADJ],
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ptr [esp + 12 + PARA_ADJ],
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ptr [esp + 16 + PARA_ADJ],
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ptr [esp + 20 + PARA_ADJ],
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#endif
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};
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mov(eax, ptr [para.self]);
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add(eax, ptr [para.self + 4]);
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add(eax, para.a);
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add(eax, para.b);
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add(eax, para.c);
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add(eax, para.d);
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add(eax, para.e);
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ret(RET_ADJ);
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}
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};
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int main()
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{
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#ifdef XBYAK64
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printf("64bit");
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#else
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printf("32bit");
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#endif
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#ifdef _WIN32
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puts(" win");
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#else
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puts(" linux");
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#endif
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try {
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Code code;
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int (A::*p)(int, int, int, int, int) const = 0;
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const void *addr = code.getCode<void*>();
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memcpy(&p, &addr, sizeof(void*));
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for (int i = 0; i < 10; i++) {
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A a;
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int t1, t2, t3, t4, t5, x, y;
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a.x_ = rand(); a.y_ = rand();
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t1 = rand(); t2 = rand(); t3 = rand();
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t4 = rand(); t5 = rand();
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x = a.func(t1, t2, t3, t4, t5);
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y = (a.*p)(t1, t2, t3, t4, t5);
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printf("%c %d, %d\n", x == y ? 'o' : 'x', x, y);
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}
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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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}
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}
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