/*
 * libbinrec: a recompiling translator for machine code
 * Copyright (c) 2016 Andrew Church <achurch@achurch.org>
 *
 * This software may be copied and redistributed under certain conditions;
 * see the file "COPYING" in the source code distribution for details.
 * NO WARRANTY is provided with this software.
 */

#include "tests/common.h"
#include "tests/host-x86/common.h"


static const binrec_setup_t setup = {
    .host = BINREC_ARCH_X86_64_SYSV,
};
static const unsigned int host_opt = 0;

static int add_rtl(RTLUnit *unit)
{
    int dummy_regs[13];
    for (int i = 0; i < lenof(dummy_regs); i++) {
        EXPECT(dummy_regs[i] = rtl_alloc_register(unit, RTLTYPE_INT32));
        EXPECT(rtl_add_insn(unit, RTLOP_NOP, dummy_regs[i], 0, 0, 0));
    }

    int reg1, reg2, reg3;
    EXPECT(reg1 = rtl_alloc_register(unit, RTLTYPE_INT32));
    EXPECT(rtl_add_insn(unit, RTLOP_LOAD_IMM, reg1, 0, 0, 1));
    /* Let EAX die so reg2 gets it. */
    EXPECT(rtl_add_insn(unit, RTLOP_NOP, 0, dummy_regs[0], 0, 0));
    EXPECT(reg2 = rtl_alloc_register(unit, RTLTYPE_INT32));
    EXPECT(rtl_add_insn(unit, RTLOP_LOAD_IMM, reg2, 0, 0, 2));
    /* Allocate another dummy register to spill reg2. */
    EXPECT(dummy_regs[0] = rtl_alloc_register(unit, RTLTYPE_INT32));
    EXPECT(rtl_add_insn(unit, RTLOP_LOAD_IMM, dummy_regs[0], 0, 0, 0));
    EXPECT(reg3 = rtl_alloc_register(unit, RTLTYPE_INT32));
    EXPECT(rtl_add_insn(unit, RTLOP_MULHU, reg3, reg1, reg2, 0));
    EXPECT(rtl_add_insn(unit, RTLOP_NOP, 0, reg1, 0, 0));
    for (int i = 0; i < lenof(dummy_regs); i++) {
        EXPECT(rtl_add_insn(unit, RTLOP_NOP, 0, dummy_regs[i], 0, 0));
    }
    EXPECT(rtl_add_insn(unit, RTLOP_NOP, 0, reg2, 0, 0));

    return EXIT_SUCCESS;
}

static const uint8_t expected_code[] = {
    0x53,                               // push %rbx
    0x55,                               // push %rbp
    0x41,0x54,                          // push %r12
    0x41,0x55,                          // push %r13
    0x41,0x56,                          // push %r14
    0x41,0x57,                          // push %r15
    0x48,0x83,0xEC,0x08,                // sub $8,%rsp
    0x41,0xBE,0x01,0x00,0x00,0x00,      // mov $1,%r14d
    0xB8,0x02,0x00,0x00,0x00,           // mov $2,%eax
    0x89,0x04,0x24,                     // mov %eax,(%rsp)
    0x33,0xC0,                          // xor %eax,%eax
    0x44,0x89,0x6C,0x24,0x04,           // mov %r13d,4(%rsp)
    0x4C,0x8B,0xEA,                     // mov %rdx,%r13
    0x4C,0x8B,0xF8,                     // mov %rax,%r15
    0x41,0x8B,0xC6,                     // mov %r14d,%eax
    0xF7,0x24,0x24,                     // mull (%rsp)
    0x49,0x87,0xD5,                     // xchg %rdx,%r13
    0x49,0x8B,0xC7,                     // mov %r15,%rax
    0x48,0x83,0xC4,0x08,                // add $8,%rsp
    0x41,0x5F,                          // pop %r15
    0x41,0x5E,                          // pop %r14
    0x41,0x5D,                          // pop %r13
    0x41,0x5C,                          // pop %r12
    0x5D,                               // pop %rbp
    0x5B,                               // pop %rbx
    0xC3,                               // ret
};

static const char expected_log[] = "";

#include "tests/rtl-translate-test.i"