1385 lines
28 KiB
C++
1385 lines
28 KiB
C++
#include <stdio.h>
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#include <string.h>
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#include <string>
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#define XBYAK_NO_OP_NAMES
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#include <xbyak/xbyak.h>
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#include <cybozu/inttype.hpp>
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#include <cybozu/test.hpp>
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using namespace Xbyak;
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void putNop(Xbyak::CodeGenerator *gen, int n)
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{
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for (int i = 0; i < n; i++) {
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gen->nop();
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}
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}
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void diff(const std::string& a, const std::string& b)
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{
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if (a == b) return;
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if (a.size() != b.size()) printf("size diff %d %d\n", (int)a.size(), (int)b.size());
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for (size_t i = 0; i < (std::min)(a.size(), b.size()); i++) {
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if (a[i] != b[i]) {
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printf("diff %d(%04x) %02x %02x\n", (int)i, (int)i, (unsigned char)a[i], (unsigned char)b[i]);
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}
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}
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}
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void dump(const std::string& m)
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{
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printf("size=%d\n ", (int)m.size());
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for (int i = 0; i < 16; i++) {
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printf("%02x ", i);
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}
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printf("\n ");
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for (int i = 0; i < 16; i++) {
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printf("---");
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}
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printf("\n");
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for (size_t i = 0; i < m.size(); i++) {
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if ((i % 16) == 0) printf("%04x ", (int)(i / 16));
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printf("%02x ", (unsigned char)m[i]);
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if ((i % 16) == 15) putchar('\n');
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}
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putchar('\n');
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}
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CYBOZU_TEST_AUTO(test1)
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{
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struct TestJmp : public Xbyak::CodeGenerator {
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/*
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4 X0:
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5 00000004 EBFE jmp short X0
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6
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7 X1:
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8 00000006 <res 00000001> dummyX1 resb 1
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9 00000007 EBFD jmp short X1
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10
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11 X126:
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12 00000009 <res 0000007E> dummyX126 resb 126
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13 00000087 EB80 jmp short X126
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14
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15 X127:
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16 00000089 <res 0000007F> dummyX127 resb 127
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17 00000108 E97CFFFFFF jmp near X127
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18
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19 0000010D EB00 jmp short Y0
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20 Y0:
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21
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22 0000010F EB01 jmp short Y1
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23 00000111 <res 00000001> dummyY1 resb 1
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24 Y1:
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25
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26 00000112 EB7F jmp short Y127
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27 00000114 <res 0000007F> dummyY127 resb 127
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28 Y127:
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29
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30 00000193 E980000000 jmp near Y128
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31 00000198 <res 00000080> dummyY128 resb 128
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32 Y128:
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*/
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TestJmp(int offset, bool isBack, bool isShort, bool useNewLabel)
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{
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if (useNewLabel) {
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Label label;
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if (isBack) {
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L(label);
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putNop(this, offset);
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jmp(label);
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} else {
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if (isShort) {
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jmp(label);
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} else {
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jmp(label, T_NEAR);
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}
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putNop(this, offset);
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L(label);
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}
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} else {
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if (isBack) {
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L("@@");
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putNop(this, offset);
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jmp("@b");
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} else {
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if (isShort) {
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jmp("@f");
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} else {
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jmp("@f", T_NEAR);
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}
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putNop(this, offset);
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L("@@");
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}
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}
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}
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};
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static const struct Tbl {
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int offset;
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bool isBack;
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bool isShort;
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uint8_t result[6];
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int size;
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} tbl[] = {
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{ 0, true, true, { 0xeb, 0xfe }, 2 },
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{ 1, true, true, { 0xeb, 0xfd }, 2 },
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{ 126, true, true, { 0xeb, 0x80 }, 2 },
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{ 127, true, false, {0xe9, 0x7c, 0xff, 0xff, 0xff }, 5 },
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{ 0, false, true, { 0xeb, 0x00 }, 2 },
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{ 1, false, true, { 0xeb, 0x01 }, 2 },
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{ 127, false, true, { 0xeb, 0x7f }, 2 },
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{ 128, false, false, { 0xe9, 0x80, 0x00, 0x00, 0x00 }, 5 },
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};
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for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
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const Tbl *p = &tbl[i];
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for (int k = 0; k < 2; k++) {
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TestJmp jmp(p->offset, p->isBack, p->isShort, k == 0);
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const uint8_t *q = (const uint8_t*)jmp.getCode();
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if (p->isBack) q += p->offset; /* skip nop */
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for (int j = 0; j < p->size; j++) {
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CYBOZU_TEST_EQUAL(q[j], p->result[j]);
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}
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}
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}
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}
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CYBOZU_TEST_AUTO(testJmpCx)
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{
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struct TestJmpCx : public CodeGenerator {
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explicit TestJmpCx(void *p, bool useNewLabel)
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: Xbyak::CodeGenerator(16, p)
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{
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if (useNewLabel) {
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Label lp;
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L(lp);
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#ifdef XBYAK64
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/*
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67 E3 FD ; jecxz lp
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E3 FB ; jrcxz lp
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*/
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jecxz(lp);
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jrcxz(lp);
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#else
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/*
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E3FE ; jecxz lp
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67E3FB ; jcxz lp
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*/
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jecxz(lp);
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jcxz(lp);
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#endif
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} else {
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inLocalLabel();
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L(".lp");
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#ifdef XBYAK64
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/*
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67 E3 FD ; jecxz lp
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E3 FB ; jrcxz lp
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*/
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jecxz(".lp");
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jrcxz(".lp");
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#else
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/*
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E3FE ; jecxz lp
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67E3FB ; jcxz lp
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*/
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jecxz(".lp");
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jcxz(".lp");
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#endif
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outLocalLabel();
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}
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}
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};
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const struct {
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const char *p;
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size_t len;
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} tbl = {
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#ifdef XBYAK64
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"\x67\xe3\xfd\xe3\xfb", 5
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#else
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"\xe3\xfe\x67\xe3\xfb", 5
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#endif
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};
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for (int j = 0; j < 2; j++) {
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char buf[16] = {};
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TestJmpCx code(buf, j == 0);
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CYBOZU_TEST_EQUAL(memcmp(buf, tbl.p, tbl.len), 0);
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}
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}
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CYBOZU_TEST_AUTO(loop)
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{
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const uint8_t ok[] = {
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// lp:
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0x31, 0xC0, // xor eax, eax
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0xE2, 0xFC, // loop lp
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0xE0, 0xFA, // loopne lp
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0xE1, 0xF8, // loope lp
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};
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struct Code : CodeGenerator {
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Code(bool useLabel)
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{
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if (useLabel) {
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Xbyak::Label lp = L();
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xor_(eax, eax);
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loop(lp);
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loopne(lp);
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loope(lp);
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} else {
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L("@@");
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xor_(eax, eax);
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loop("@b");
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loopne("@b");
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loope("@b");
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}
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}
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};
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Code code1(false);
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CYBOZU_TEST_EQUAL(code1.getSize(), sizeof(ok));
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CYBOZU_TEST_EQUAL_ARRAY(code1.getCode(), ok, sizeof(ok));
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Code code2(true);
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CYBOZU_TEST_EQUAL(code2.getSize(), sizeof(ok));
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CYBOZU_TEST_EQUAL_ARRAY(code2.getCode(), ok, sizeof(ok));
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}
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#ifdef _MSC_VER
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#pragma warning(disable : 4310)
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#endif
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CYBOZU_TEST_AUTO(test2)
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{
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struct TestJmp2 : public CodeGenerator {
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/*
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1 00000000 90 nop
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2 00000001 90 nop
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3 f1:
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4 00000002 <res 0000007E> dummyX1 resb 126
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6 00000080 EB80 jmp f1
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7
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8 f2:
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9 00000082 <res 0000007F> dummyX2 resb 127
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11 00000101 E97CFFFFFF jmp f2
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12
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13
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14 00000106 EB7F jmp f3
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15 00000108 <res 0000007F> dummyX3 resb 127
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17 f3:
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18
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19 00000187 E980000000 jmp f4
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20 0000018C <res 00000080> dummyX4 resb 128
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22 f4:
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*/
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TestJmp2(void *p, bool useNewLabel)
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: Xbyak::CodeGenerator(8192, p)
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{
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if (useNewLabel) {
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inLocalLabel();
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nop();
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nop();
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L(".f1");
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putNop(this, 126);
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jmp(".f1");
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L(".f2");
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putNop(this, 127);
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jmp(".f2", T_NEAR);
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jmp(".f3");
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putNop(this, 127);
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L(".f3");
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jmp(".f4", T_NEAR);
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putNop(this, 128);
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L(".f4");
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outLocalLabel();
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} else {
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nop();
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nop();
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Label f1, f2, f3, f4;
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L(f1);
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putNop(this, 126);
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jmp(f1);
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L(f2);
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putNop(this, 127);
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jmp(f2, T_NEAR);
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jmp(f3);
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putNop(this, 127);
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L(f3);
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jmp(f4, T_NEAR);
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putNop(this, 128);
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L(f4);
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}
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}
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};
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std::string ok;
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ok.resize(0x18C + 128, (char)0x90);
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ok[0x080] = (char)0xeb;
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ok[0x081] = (char)0x80;
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ok[0x101] = (char)0xe9;
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ok[0x102] = (char)0x7c;
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ok[0x103] = (char)0xff;
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ok[0x104] = (char)0xff;
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ok[0x105] = (char)0xff;
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ok[0x106] = (char)0xeb;
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ok[0x107] = (char)0x7f;
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ok[0x187] = (char)0xe9;
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ok[0x188] = (char)0x80;
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ok[0x189] = (char)0x00;
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ok[0x18a] = (char)0x00;
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ok[0x18b] = (char)0x00;
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for (int i = 0; i < 2; i++) {
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for (int j = 0; j < 2; j++) {
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TestJmp2 c(i == 0 ? 0 : Xbyak::AutoGrow, j == 0);
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c.ready();
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std::string m((const char*)c.getCode(), c.getSize());
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CYBOZU_TEST_EQUAL(m, ok);
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}
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}
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}
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#ifdef XBYAK32
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int add5(int x) { return x + 5; }
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int add2(int x) { return x + 2; }
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CYBOZU_TEST_AUTO(test3)
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{
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struct Grow : Xbyak::CodeGenerator {
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Grow(int dummySize)
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: Xbyak::CodeGenerator(128, Xbyak::AutoGrow)
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{
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mov(eax, 100);
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push(eax);
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call((void*)add5);
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add(esp, 4);
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push(eax);
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call((void*)add2);
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add(esp, 4);
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ret();
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for (int i = 0; i < dummySize; i++) {
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db(0);
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}
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}
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};
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for (int dummySize = 0; dummySize < 40000; dummySize += 10000) {
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printf("dummySize=%d\n", dummySize);
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Grow g(dummySize);
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g.ready();
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int (*f)() = (int (*)())g.getCode();
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int x = f();
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const int ok = 107;
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CYBOZU_TEST_EQUAL(x, ok);
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}
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}
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#endif
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uint8_t bufL[4096 * 32];
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uint8_t bufS[4096 * 2];
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struct MyAllocator : Xbyak::Allocator {
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uint8_t *alloc(size_t size)
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{
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if (size < sizeof(bufS)) {
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printf("test use bufS(%d)\n", (int)size);
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return bufS;
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}
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if (size < sizeof(bufL)) {
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printf("test use bufL(%d)\n", (int)size);
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return bufL;
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}
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fprintf(stderr, "no memory %d\n", (int)size);
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exit(1);
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}
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void free(uint8_t *)
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{
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}
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} myAlloc;
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CYBOZU_TEST_AUTO(test4)
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{
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struct Test4 : Xbyak::CodeGenerator {
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Test4(int size, void *mode, bool useNewLabel)
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: CodeGenerator(size, mode)
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{
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if (useNewLabel) {
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Label x;
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jmp(x);
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putNop(this, 10);
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L(x);
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ret();
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} else {
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inLocalLabel();
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jmp(".x");
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putNop(this, 10);
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L(".x");
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ret();
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outLocalLabel();
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}
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}
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};
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for (int i = 0; i < 2; i++) {
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const bool useNewLabel = i == 0;
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std::string fm, gm;
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Test4 fc(1024, 0, useNewLabel);
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Test4 gc(5, Xbyak::AutoGrow, !useNewLabel);
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gc.ready();
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fm.assign((const char*)fc.getCode(), fc.getSize());
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gm.assign((const char*)gc.getCode(), gc.getSize());
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CYBOZU_TEST_EQUAL(fm, gm);
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}
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}
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#ifndef __APPLE__
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CYBOZU_TEST_AUTO(test5)
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{
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struct Test5 : Xbyak::CodeGenerator {
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explicit Test5(int size, int count, void *mode)
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: CodeGenerator(size, mode, &myAlloc)
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{
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using namespace Xbyak;
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inLocalLabel();
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mov(ecx, count);
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xor_(eax, eax);
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L(".lp");
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for (int i = 0; i < count; i++) {
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L(Label::toStr(i));
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add(eax, 1);
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int to = 0;
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if (i < count / 2) {
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to = count - 1 - i;
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} else {
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to = count - i;
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}
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if (i == count / 2) {
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jmp(".exit", T_NEAR);
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} else {
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jmp(Label::toStr(to), T_NEAR);
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}
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}
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L(".exit");
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sub(ecx, 1);
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jnz(".lp", T_NEAR);
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ret();
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outLocalLabel();
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}
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};
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std::string fm, gm;
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const int count = 50;
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int ret;
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Test5 fc(1024 * 64, count, 0);
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ret = ((int (*)())fc.getCode())();
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CYBOZU_TEST_EQUAL(ret, count * count);
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fm.assign((const char*)fc.getCode(), fc.getSize());
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Test5 gc(10, count, Xbyak::AutoGrow);
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gc.ready();
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ret = ((int (*)())gc.getCode())();
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CYBOZU_TEST_EQUAL(ret, count * count);
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gm.assign((const char*)gc.getCode(), gc.getSize());
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CYBOZU_TEST_EQUAL(fm, gm);
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}
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#endif
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size_t getValue(const uint8_t* p)
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{
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size_t v = 0;
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for (size_t i = 0; i < sizeof(size_t); i++) {
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v |= size_t(p[i]) << (i * 8);
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}
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return v;
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}
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void checkAddr(const uint8_t *p, size_t offset, size_t expect)
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{
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size_t v = getValue(p + offset);
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CYBOZU_TEST_EQUAL(v, size_t(p) + expect);
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}
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CYBOZU_TEST_AUTO(MovLabel)
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{
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struct MovLabelCode : Xbyak::CodeGenerator {
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MovLabelCode(bool grow, bool useNewLabel)
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: Xbyak::CodeGenerator(grow ? 128 : 4096, grow ? Xbyak::AutoGrow : 0)
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{
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#ifdef XBYAK64
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const Reg64& a = rax;
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#else
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const Reg32& a = eax;
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#endif
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if (useNewLabel) {
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nop(); // 0x90
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Label lp1, lp2;
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L(lp1);
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nop();
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mov(a, lp1); // 0xb8 + <4byte> / 0x48bb + <8byte>
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nop();
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mov(a, lp2); // 0xb8
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// force realloc if AutoGrow
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putNop(this, 256);
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nop();
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L(lp2);
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} else {
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inLocalLabel();
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nop(); // 0x90
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L(".lp1");
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nop();
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mov(a, ".lp1"); // 0xb8 + <4byte> / 0x48bb + <8byte>
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nop();
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mov(a, ".lp2"); // 0xb8
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// force realloc if AutoGrow
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putNop(this, 256);
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nop();
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L(".lp2");
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outLocalLabel();
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}
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}
|
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};
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|
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const struct {
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int pos;
|
|
uint8_t ok;
|
|
} tbl[] = {
|
|
#ifdef XBYAK32
|
|
{ 0x00, 0x90 },
|
|
// lp1:0x001
|
|
{ 0x001, 0x90 },
|
|
{ 0x002, 0xb8 },
|
|
// 0x003
|
|
{ 0x007, 0x90 },
|
|
{ 0x008, 0xb8 },
|
|
// 0x009
|
|
{ 0x10d, 0x90 },
|
|
// lp2:0x10e
|
|
#else
|
|
{ 0x000, 0x90 },
|
|
// lp1:0x001
|
|
{ 0x001, 0x90 },
|
|
{ 0x002, 0x48 },
|
|
{ 0x003, 0xb8 },
|
|
// 0x004
|
|
{ 0x00c, 0x90 },
|
|
{ 0x00d, 0x48 },
|
|
{ 0x00e, 0xb8 },
|
|
// 0x00f
|
|
{ 0x117, 0x90 },
|
|
// lp2:0x118
|
|
#endif
|
|
};
|
|
for (int j = 0; j < 2; j++) {
|
|
const bool grow = j == 0;
|
|
for (int k = 0; k < 2; k++) {
|
|
const bool useNewLabel = k == 0;
|
|
MovLabelCode code(grow, useNewLabel);
|
|
if (grow) code.ready();
|
|
const uint8_t* const p = code.getCode();
|
|
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
|
|
int pos = tbl[i].pos;
|
|
uint8_t x = p[pos];
|
|
uint8_t ok = tbl[i].ok;
|
|
CYBOZU_TEST_EQUAL(x, ok);
|
|
}
|
|
#ifdef XBYAK32
|
|
checkAddr(p, 0x03, 0x001);
|
|
checkAddr(p, 0x09, 0x10e);
|
|
#else
|
|
checkAddr(p, 0x04, 0x001);
|
|
checkAddr(p, 0x0f, 0x118);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(testMovLabel2)
|
|
{
|
|
struct MovLabel2Code : Xbyak::CodeGenerator {
|
|
MovLabel2Code()
|
|
{
|
|
#ifdef XBYAK64
|
|
const Reg64& a = rax;
|
|
const Reg64& c = rcx;
|
|
#else
|
|
const Reg32& a = eax;
|
|
const Reg32& c = ecx;
|
|
#endif
|
|
xor_(a, a);
|
|
xor_(c, c);
|
|
jmp("in");
|
|
ud2();
|
|
L("@@"); // L1
|
|
add(a, 2);
|
|
mov(c, "@f");
|
|
jmp(c); // goto L2
|
|
ud2();
|
|
L("in");
|
|
mov(c, "@b");
|
|
add(a, 1);
|
|
jmp(c); // goto L1
|
|
ud2();
|
|
L("@@"); // L2
|
|
add(a, 4);
|
|
ret();
|
|
}
|
|
};
|
|
MovLabel2Code code;
|
|
int ret = code.getCode<int (*)()>()();
|
|
CYBOZU_TEST_EQUAL(ret, 7);
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(testF_B)
|
|
{
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code(int type)
|
|
{
|
|
inLocalLabel();
|
|
xor_(eax, eax);
|
|
switch (type) {
|
|
case 0:
|
|
L("@@");
|
|
inc(eax);
|
|
cmp(eax, 1);
|
|
je("@b");
|
|
break;
|
|
case 1:
|
|
test(eax, eax);
|
|
jz("@f");
|
|
ud2();
|
|
L("@@");
|
|
break;
|
|
case 2:
|
|
L("@@");
|
|
inc(eax);
|
|
cmp(eax, 1); // 1, 2
|
|
je("@b");
|
|
cmp(eax, 2); // 2, 3
|
|
je("@b");
|
|
break;
|
|
case 3:
|
|
L("@@");
|
|
inc(eax);
|
|
cmp(eax, 1); // 1, 2
|
|
je("@b");
|
|
cmp(eax, 2); // 2, 3
|
|
je("@b");
|
|
jmp("@f");
|
|
ud2();
|
|
L("@@");
|
|
break;
|
|
case 4:
|
|
L("@@");
|
|
inc(eax);
|
|
cmp(eax, 1); // 1, 2
|
|
je("@b");
|
|
cmp(eax, 2); // 2, 3
|
|
je("@b");
|
|
jmp("@f");
|
|
ud2();
|
|
L("@@");
|
|
inc(eax); // 4, 5
|
|
cmp(eax, 4);
|
|
je("@b");
|
|
break;
|
|
case 5:
|
|
L("@@");
|
|
L("@@");
|
|
inc(eax);
|
|
cmp(eax, 1);
|
|
je("@b");
|
|
break;
|
|
case 6:
|
|
L("@@");
|
|
L("@@");
|
|
L("@@");
|
|
inc(eax);
|
|
cmp(eax, 1);
|
|
je("@b");
|
|
break;
|
|
case 7:
|
|
jmp("@f");
|
|
L("@@");
|
|
inc(eax); // 1, 2
|
|
cmp(eax, 1);
|
|
je("@b");
|
|
cmp(eax, 2);
|
|
jne("@f"); // not jmp
|
|
inc(eax); // 3
|
|
L("@@");
|
|
inc(eax); // 4, 5, 6
|
|
cmp(eax, 4);
|
|
je("@b");
|
|
cmp(eax, 5);
|
|
je("@b");
|
|
jmp("@f");
|
|
jmp("@f");
|
|
jmp("@b");
|
|
L("@@");
|
|
break;
|
|
}
|
|
ret();
|
|
outLocalLabel();
|
|
}
|
|
};
|
|
const int expectedTbl[] = {
|
|
2, 0, 3, 3, 5, 2, 2, 6
|
|
};
|
|
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(expectedTbl); i++) {
|
|
Code code((int)i);
|
|
int ret = code.getCode<int (*)()>()();
|
|
CYBOZU_TEST_EQUAL(ret, expectedTbl[i]);
|
|
}
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(test6)
|
|
{
|
|
struct TestLocal : public Xbyak::CodeGenerator {
|
|
TestLocal(bool grow)
|
|
: Xbyak::CodeGenerator(grow ? 128 : 4096, grow ? Xbyak::AutoGrow : 0)
|
|
{
|
|
xor_(eax, eax);
|
|
inLocalLabel();
|
|
jmp("start0", T_NEAR);
|
|
L(".back");
|
|
inc(eax); // 8
|
|
jmp(".next", T_NEAR);
|
|
L("start2");
|
|
inc(eax); // 7
|
|
jmp(".back", T_NEAR);
|
|
inLocalLabel();
|
|
L(".back");
|
|
inc(eax); // 5
|
|
putNop(this, 128);
|
|
jmp(".next", T_NEAR);
|
|
L("start1");
|
|
inc(eax); // 4
|
|
jmp(".back", T_NEAR);
|
|
inLocalLabel();
|
|
L(".back");
|
|
inc(eax); // 2
|
|
jmp(".next", T_NEAR);
|
|
L("start0");
|
|
inc(eax); // 1
|
|
jmp(".back", T_NEAR);
|
|
L(".next");
|
|
inc(eax); // 3
|
|
jmp("start1", T_NEAR);
|
|
outLocalLabel();
|
|
L(".next");
|
|
inc(eax); // 6
|
|
jmp("start2", T_NEAR);
|
|
outLocalLabel();
|
|
L(".next");
|
|
inc(eax); // 9
|
|
jmp("start3", T_NEAR);
|
|
inLocalLabel();
|
|
L(".back");
|
|
inc(eax); // 14
|
|
jmp("exit", T_NEAR);
|
|
L("start4");
|
|
inc(eax); // 13
|
|
jmp(".back", T_NEAR);
|
|
outLocalLabel();
|
|
L("start3");
|
|
inc(eax); // 10
|
|
inLocalLabel();
|
|
jmp(".next", T_NEAR);
|
|
L(".back");
|
|
inc(eax); // 12
|
|
jmp("start4", T_NEAR);
|
|
L(".next");
|
|
inc(eax); // 11
|
|
jmp(".back", T_NEAR);
|
|
outLocalLabel();
|
|
outLocalLabel();
|
|
L("exit");
|
|
inc(eax); // 15
|
|
ret();
|
|
}
|
|
};
|
|
|
|
for (int i = 0; i < 2; i++) {
|
|
const bool grow = i == 1;
|
|
printf("test6 grow=%d\n", i);
|
|
TestLocal code(grow);
|
|
if (grow) code.ready();
|
|
int (*f)() = code.getCode<int (*)()>();
|
|
int a = f();
|
|
CYBOZU_TEST_EQUAL(a, 15);
|
|
}
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(test_jcc)
|
|
{
|
|
struct A : Xbyak::CodeGenerator {
|
|
A()
|
|
{
|
|
add(eax, 5);
|
|
ret();
|
|
}
|
|
};
|
|
struct B : Xbyak::CodeGenerator {
|
|
B(bool grow, const void *p) : Xbyak::CodeGenerator(grow ? 0 : 4096, grow ? Xbyak::AutoGrow : 0)
|
|
{
|
|
mov(eax, 1);
|
|
add(eax, 2);
|
|
jnz(p);
|
|
}
|
|
};
|
|
A a;
|
|
const void *p = a.getCode<const void*>();
|
|
for (int i = 0; i < 2; i++) {
|
|
bool grow = i == 1;
|
|
B b(grow, p);
|
|
if (grow) {
|
|
b.ready();
|
|
}
|
|
int (*f)() = b.getCode<int (*)()>();
|
|
CYBOZU_TEST_EQUAL(f(), 8);
|
|
}
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(testNewLabel)
|
|
{
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code(bool grow)
|
|
: Xbyak::CodeGenerator(grow ? 128 : 4096, grow ? Xbyak::AutoGrow : 0)
|
|
{
|
|
xor_(eax, eax);
|
|
{
|
|
Label label1;
|
|
Label label2;
|
|
Label label3;
|
|
Label label4;
|
|
Label exit;
|
|
jmp(label1, T_NEAR);
|
|
L(label2);
|
|
inc(eax); // 2
|
|
jmp(label3, T_NEAR);
|
|
L(label4);
|
|
inc(eax); // 4
|
|
jmp(exit, T_NEAR);
|
|
putNop(this, 128);
|
|
L(label3);
|
|
inc(eax); // 3
|
|
jmp(label4, T_NEAR);
|
|
L(label1);
|
|
inc(eax); // 1
|
|
jmp(label2, T_NEAR);
|
|
L(exit);
|
|
}
|
|
{
|
|
Label label1;
|
|
Label label2;
|
|
Label label3;
|
|
Label label4;
|
|
Label exit;
|
|
jmp(label1);
|
|
L(label2);
|
|
inc(eax); // 6
|
|
jmp(label3);
|
|
L(label4);
|
|
inc(eax); // 8
|
|
jmp(exit);
|
|
L(label3);
|
|
inc(eax); // 7
|
|
jmp(label4);
|
|
L(label1);
|
|
inc(eax); // 5
|
|
jmp(label2);
|
|
L(exit);
|
|
}
|
|
Label callLabel;
|
|
{ // eax == 8
|
|
Label label1;
|
|
Label label2;
|
|
L(label1);
|
|
inc(eax); // 9, 10, 11, 13
|
|
cmp(eax, 9);
|
|
je(label1);
|
|
// 10, 11, 13
|
|
inc(eax); // 11, 12, 13
|
|
cmp(eax, 11);
|
|
je(label1);
|
|
// 12, 13
|
|
cmp(eax, 12);
|
|
je(label2);
|
|
inc(eax); // 14
|
|
cmp(eax, 14);
|
|
je(label2);
|
|
ud2();
|
|
L(label2); // 14
|
|
inc(eax); // 13, 15
|
|
cmp(eax, 13);
|
|
je(label1);
|
|
}
|
|
call(callLabel);
|
|
ret();
|
|
L(callLabel);
|
|
inc(eax); // 16
|
|
ret();
|
|
}
|
|
};
|
|
for (int i = 0; i < 2; i++) {
|
|
const bool grow = i == 1;
|
|
printf("testNewLabel grow=%d\n", grow);
|
|
Code code(grow);
|
|
if (grow) code.ready();
|
|
int (*f)() = code.getCode<int (*)()>();
|
|
int r = f();
|
|
CYBOZU_TEST_EQUAL(r, 16);
|
|
}
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(returnLabel)
|
|
{
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code()
|
|
{
|
|
xor_(eax, eax);
|
|
Label L1 = L();
|
|
test(eax, eax);
|
|
Label exit;
|
|
jnz(exit);
|
|
inc(eax); // 1
|
|
Label L2;
|
|
call(L2);
|
|
jmp(L1);
|
|
L(L2);
|
|
inc(eax); // 2
|
|
ret();
|
|
L(exit);
|
|
inc(eax); // 3
|
|
ret();
|
|
}
|
|
};
|
|
Code code;
|
|
int (*f)() = code.getCode<int (*)()>();
|
|
int r = f();
|
|
CYBOZU_TEST_EQUAL(r, 3);
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(testAssign)
|
|
{
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code(bool grow)
|
|
: Xbyak::CodeGenerator(grow ? 128 : 4096, grow ? Xbyak::AutoGrow : 0)
|
|
{
|
|
xor_(eax, eax);
|
|
Label dst, src;
|
|
L(src);
|
|
inc(eax);
|
|
cmp(eax, 1);
|
|
je(dst);
|
|
inc(eax); // 2, 3, 5
|
|
cmp(eax, 5);
|
|
putNop(this, 128);
|
|
jne(dst, T_NEAR);
|
|
ret();
|
|
assignL(dst, src);
|
|
// test of copy label
|
|
{
|
|
Label sss(dst);
|
|
{
|
|
Label ttt;
|
|
ttt = src;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
for (int i = 0; i < 2; i++) {
|
|
const bool grow = i == 0;
|
|
printf("testAssign grow=%d\n", grow);
|
|
Code code(grow);
|
|
if (grow) code.ready();
|
|
int (*f)() = code.getCode<int (*)()>();
|
|
int ret = f();
|
|
CYBOZU_TEST_EQUAL(ret, 5);
|
|
}
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(doubleDefine)
|
|
{
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code()
|
|
{
|
|
{
|
|
Label label;
|
|
L(label);
|
|
// forbitten double L()
|
|
CYBOZU_TEST_EXCEPTION(L(label), Xbyak::Error);
|
|
}
|
|
{
|
|
Label label;
|
|
jmp(label);
|
|
CYBOZU_TEST_ASSERT(hasUndefinedLabel());
|
|
}
|
|
{
|
|
Label label1, label2;
|
|
L(label1);
|
|
jmp(label2);
|
|
assignL(label2, label1);
|
|
// forbitten double assignL
|
|
CYBOZU_TEST_EXCEPTION(assignL(label2, label1), Xbyak::Error);
|
|
}
|
|
{
|
|
Label label1, label2;
|
|
L(label1);
|
|
jmp(label2);
|
|
// forbitten assignment to label1 set by L()
|
|
CYBOZU_TEST_EXCEPTION(assignL(label1, label2), Xbyak::Error);
|
|
}
|
|
}
|
|
} code;
|
|
}
|
|
|
|
struct GetAddressCode1 : Xbyak::CodeGenerator {
|
|
void test()
|
|
{
|
|
Xbyak::Label L1, L2, L3;
|
|
nop();
|
|
L(L1);
|
|
const uint8_t *p1 = getCurr();
|
|
CYBOZU_TEST_EQUAL_POINTER(L1.getAddress(), p1);
|
|
|
|
nop();
|
|
jmp(L2);
|
|
nop();
|
|
jmp(L3);
|
|
L(L2);
|
|
CYBOZU_TEST_EQUAL_POINTER(L2.getAddress(), getCurr());
|
|
// L3 is not defined
|
|
CYBOZU_TEST_EQUAL_POINTER(L3.getAddress(), 0);
|
|
|
|
// L3 is set by L1
|
|
assignL(L3, L1);
|
|
CYBOZU_TEST_EQUAL_POINTER(L3.getAddress(), p1);
|
|
}
|
|
};
|
|
|
|
struct CodeLabelTable : Xbyak::CodeGenerator {
|
|
enum { ret0 = 3 };
|
|
enum { ret1 = 5 };
|
|
enum { ret2 = 8 };
|
|
CodeLabelTable()
|
|
{
|
|
using namespace Xbyak;
|
|
#ifdef XBYAK64_WIN
|
|
const Reg64& p0 = rcx;
|
|
const Reg64& a = rax;
|
|
#elif defined (XBYAK64_GCC)
|
|
const Reg64& p0 = rdi;
|
|
const Reg64& a = rax;
|
|
#else
|
|
const Reg32& p0 = edx;
|
|
const Reg32& a = eax;
|
|
mov(edx, ptr [esp + 4]);
|
|
#endif
|
|
Label labelTbl, L0, L1, L2;
|
|
mov(a, labelTbl);
|
|
jmp(ptr [a + p0 * sizeof(void*)]);
|
|
L(labelTbl);
|
|
putL(L0);
|
|
putL(L1);
|
|
putL(L2);
|
|
L(L0);
|
|
mov(a, ret0);
|
|
ret();
|
|
L(L1);
|
|
mov(a, ret1);
|
|
ret();
|
|
L(L2);
|
|
mov(a, ret2);
|
|
ret();
|
|
}
|
|
};
|
|
|
|
CYBOZU_TEST_AUTO(LabelTable)
|
|
{
|
|
CodeLabelTable c;
|
|
int (*f)(int) = c.getCode<int (*)(int)>();
|
|
CYBOZU_TEST_EQUAL(f(0), c.ret0);
|
|
CYBOZU_TEST_EQUAL(f(1), c.ret1);
|
|
CYBOZU_TEST_EQUAL(f(2), c.ret2);
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(getAddress1)
|
|
{
|
|
GetAddressCode1 c;
|
|
c.test();
|
|
}
|
|
|
|
struct GetAddressCode2 : Xbyak::CodeGenerator {
|
|
Xbyak::Label L1, L2, L3;
|
|
size_t a1;
|
|
size_t a3;
|
|
explicit GetAddressCode2(int size)
|
|
: Xbyak::CodeGenerator(size, size == 4096 ? 0 : Xbyak::AutoGrow)
|
|
, a1(0)
|
|
, a3(0)
|
|
{
|
|
bool autoGrow = size != 4096;
|
|
nop();
|
|
L(L1);
|
|
if (autoGrow) {
|
|
CYBOZU_TEST_EQUAL_POINTER(L1.getAddress(), 0);
|
|
}
|
|
a1 = getSize();
|
|
nop();
|
|
jmp(L2);
|
|
if (autoGrow) {
|
|
CYBOZU_TEST_EQUAL_POINTER(L2.getAddress(), 0);
|
|
}
|
|
L(L3);
|
|
a3 = getSize();
|
|
if (autoGrow) {
|
|
CYBOZU_TEST_EQUAL_POINTER(L3.getAddress(), 0);
|
|
}
|
|
nop();
|
|
assignL(L2, L1);
|
|
if (autoGrow) {
|
|
CYBOZU_TEST_EQUAL_POINTER(L2.getAddress(), 0);
|
|
}
|
|
}
|
|
};
|
|
|
|
CYBOZU_TEST_AUTO(getAddress2)
|
|
{
|
|
const int sizeTbl[] = {
|
|
2, 128, // grow
|
|
4096 // not grow
|
|
};
|
|
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(sizeTbl); i++) {
|
|
int size = sizeTbl[i];
|
|
GetAddressCode2 c(size);
|
|
c.ready();
|
|
const uint8_t *p = c.getCode();
|
|
CYBOZU_TEST_EQUAL(c.L1.getAddress(), p + c.a1);
|
|
CYBOZU_TEST_EQUAL(c.L3.getAddress(), p + c.a3);
|
|
CYBOZU_TEST_EQUAL(c.L2.getAddress(), p + c.a1);
|
|
}
|
|
}
|
|
|
|
#ifdef XBYAK64
|
|
CYBOZU_TEST_AUTO(rip)
|
|
{
|
|
int a[] = { 1, 10 };
|
|
int b[] = { 100, 1000 };
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code(const int *a, const int *b)
|
|
{
|
|
Label label1, label2;
|
|
jmp("@f");
|
|
L(label1);
|
|
db(a[0], 4);
|
|
db(a[1], 4);
|
|
L("@@");
|
|
mov(eax, ptr [rip + label1]); // a[0]
|
|
mov(ecx, ptr [rip + label1+4]); // a[1]
|
|
mov(edx, ptr [rip + label2-8+2+6]); // b[0]
|
|
add(ecx, ptr [rip + 16+label2-12]); // b[1]
|
|
add(eax, ecx);
|
|
add(eax, edx);
|
|
ret();
|
|
L(label2);
|
|
db(b[0], 4);
|
|
db(b[1], 4);
|
|
|
|
// error
|
|
CYBOZU_TEST_EXCEPTION(rip + label1 + label2, Xbyak::Error);
|
|
}
|
|
} code(a, b);
|
|
int ret = code.getCode<int (*)()>()();
|
|
CYBOZU_TEST_EQUAL(ret, a[0] + a[1] + b[0] + b[1]);
|
|
}
|
|
|
|
int ret1234()
|
|
{
|
|
return 1234;
|
|
}
|
|
|
|
int ret9999()
|
|
{
|
|
return 9999;
|
|
}
|
|
|
|
CYBOZU_TEST_AUTO(rip_jmp)
|
|
{
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code()
|
|
{
|
|
Label label;
|
|
xor_(eax, eax);
|
|
call(ptr [rip + label]);
|
|
mov(ecx, eax);
|
|
call(ptr [rip + label + 8]);
|
|
add(eax, ecx);
|
|
ret();
|
|
L(label);
|
|
db((size_t)ret1234, 8);
|
|
db((size_t)ret9999, 8);
|
|
}
|
|
} code;
|
|
int ret = code.getCode<int (*)()>()();
|
|
CYBOZU_TEST_EQUAL(ret, ret1234() + ret9999());
|
|
}
|
|
|
|
#if 0
|
|
CYBOZU_TEST_AUTO(rip_addr)
|
|
{
|
|
/*
|
|
we can't assume |&x - &code| < 2GiB anymore
|
|
*/
|
|
static int x = 5;
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code()
|
|
{
|
|
mov(eax, 123);
|
|
mov(ptr[rip + &x], eax);
|
|
ret();
|
|
}
|
|
} code;
|
|
code.getCode<void (*)()>()();
|
|
CYBOZU_TEST_EQUAL(x, 123);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __APPLE__
|
|
CYBOZU_TEST_AUTO(rip_addr_with_fixed_buf)
|
|
{
|
|
MIE_ALIGN(4096) static char buf[8192];
|
|
static char *p = buf + 4096;
|
|
static int *x0 = (int*)buf;
|
|
static int *x1 = x0 + 1;
|
|
struct Code : Xbyak::CodeGenerator {
|
|
Code() : Xbyak::CodeGenerator(4096, p)
|
|
{
|
|
mov(eax, 123);
|
|
mov(ptr[rip + x0], eax);
|
|
mov(dword[rip + x1], 456);
|
|
mov(byte[rip + 1 + x1 + 3], 99);
|
|
ret();
|
|
}
|
|
} code;
|
|
code.setProtectModeRE();
|
|
code.getCode<void (*)()>()();
|
|
CYBOZU_TEST_EQUAL(*x0, 123);
|
|
CYBOZU_TEST_EQUAL(*x1, 456);
|
|
CYBOZU_TEST_EQUAL(buf[8], 99);
|
|
code.setProtectModeRW();
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
struct ReleaseTestCode : Xbyak::CodeGenerator {
|
|
ReleaseTestCode(Label& L1, Label& L2, Label& L3)
|
|
{
|
|
L(L1);
|
|
jmp(L1);
|
|
L(L2);
|
|
jmp(L3); // not assigned
|
|
}
|
|
};
|
|
|
|
/*
|
|
code must unlink label if code is destroyed
|
|
*/
|
|
CYBOZU_TEST_AUTO(release_label_after_code)
|
|
{
|
|
puts("---");
|
|
{
|
|
Label L1, L2, L3, L4, L5;
|
|
{
|
|
ReleaseTestCode code(L1, L2, L3);
|
|
CYBOZU_TEST_ASSERT(L1.getId() > 0);
|
|
CYBOZU_TEST_ASSERT(L1.getAddress() != 0);
|
|
CYBOZU_TEST_ASSERT(L2.getId() > 0);
|
|
CYBOZU_TEST_ASSERT(L2.getAddress() != 0);
|
|
CYBOZU_TEST_ASSERT(L3.getId() > 0);
|
|
CYBOZU_TEST_ASSERT(L3.getAddress() == 0); // L3 is not assigned
|
|
code.assignL(L4, L1);
|
|
L5 = L1;
|
|
printf("id=%d %d %d %d %d\n", L1.getId(), L2.getId(), L3.getId(), L4.getId(), L5.getId());
|
|
}
|
|
puts("code is released");
|
|
CYBOZU_TEST_ASSERT(L1.getId() == 0);
|
|
CYBOZU_TEST_ASSERT(L1.getAddress() == 0);
|
|
CYBOZU_TEST_ASSERT(L2.getId() == 0);
|
|
CYBOZU_TEST_ASSERT(L2.getAddress() == 0);
|
|
// CYBOZU_TEST_ASSERT(L3.getId() == 0); // L3 is not assigned so not cleared
|
|
CYBOZU_TEST_ASSERT(L3.getAddress() == 0);
|
|
CYBOZU_TEST_ASSERT(L4.getId() == 0);
|
|
CYBOZU_TEST_ASSERT(L4.getAddress() == 0);
|
|
CYBOZU_TEST_ASSERT(L5.getId() == 0);
|
|
CYBOZU_TEST_ASSERT(L5.getAddress() == 0);
|
|
printf("id=%d %d %d %d %d\n", L1.getId(), L2.getId(), L3.getId(), L4.getId(), L5.getId());
|
|
}
|
|
}
|
|
|
|
struct JmpTypeCode : Xbyak::CodeGenerator {
|
|
void nops()
|
|
{
|
|
for (int i = 0; i < 130; i++) {
|
|
nop();
|
|
}
|
|
}
|
|
// return jmp code size
|
|
size_t gen(bool pre, bool large, Xbyak::CodeGenerator::LabelType type)
|
|
{
|
|
Label label;
|
|
if (pre) {
|
|
L(label);
|
|
if (large) nops();
|
|
size_t pos = getSize();
|
|
jmp(label, type);
|
|
return getSize() - pos;
|
|
} else {
|
|
size_t pos = getSize();
|
|
jmp(label, type);
|
|
size_t size = getSize() - pos;
|
|
if (large) nops();
|
|
L(label);
|
|
return size;
|
|
}
|
|
}
|
|
};
|
|
|
|
CYBOZU_TEST_AUTO(setDefaultJmpNEAR)
|
|
{
|
|
const Xbyak::CodeGenerator::LabelType T_SHORT = Xbyak::CodeGenerator::T_SHORT;
|
|
const Xbyak::CodeGenerator::LabelType T_NEAR = Xbyak::CodeGenerator::T_NEAR;
|
|
const Xbyak::CodeGenerator::LabelType T_AUTO = Xbyak::CodeGenerator::T_AUTO;
|
|
const struct {
|
|
bool pre;
|
|
bool large;
|
|
Xbyak::CodeGenerator::LabelType type;
|
|
size_t expect1; // 0 means exception
|
|
size_t expect2;
|
|
} tbl[] = {
|
|
{ false, false, T_SHORT, 2, 2 },
|
|
{ false, false, T_NEAR, 5, 5 },
|
|
{ false, true, T_SHORT, 0, 0 },
|
|
{ false, true, T_NEAR, 5, 5 },
|
|
|
|
{ true, false, T_SHORT, 2, 2 },
|
|
{ true, false, T_NEAR, 5, 5 },
|
|
{ true, true, T_SHORT, 0, 0 },
|
|
{ true, true, T_NEAR, 5, 5 },
|
|
|
|
{ false, false, T_AUTO, 2, 5 },
|
|
{ false, true, T_AUTO, 0, 5 },
|
|
{ true, false, T_AUTO, 2, 2 },
|
|
{ true, true, T_AUTO, 5, 5 },
|
|
};
|
|
JmpTypeCode code1, code2;
|
|
code2.setDefaultJmpNEAR(true);
|
|
for (size_t i = 0; i < CYBOZU_NUM_OF_ARRAY(tbl); i++) {
|
|
if (tbl[i].expect1) {
|
|
size_t size = code1.gen(tbl[i].pre, tbl[i].large, tbl[i].type);
|
|
CYBOZU_TEST_EQUAL(size, tbl[i].expect1);
|
|
} else {
|
|
CYBOZU_TEST_EXCEPTION(code1.gen(tbl[i].pre, tbl[i].large, tbl[i].type), std::exception);
|
|
}
|
|
if (tbl[i].expect2) {
|
|
size_t size = code2.gen(tbl[i].pre, tbl[i].large, tbl[i].type);
|
|
CYBOZU_TEST_EQUAL(size, tbl[i].expect2);
|
|
} else {
|
|
CYBOZU_TEST_EXCEPTION(code2.gen(tbl[i].pre, tbl[i].large, tbl[i].type), std::exception);
|
|
}
|
|
}
|
|
}
|