/*
 * 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 "src/rtl-internal.h"
#include "tests/common.h"


static unsigned int opt_flags = BINREC_OPT_DSE;

static int add_rtl(RTLUnit *unit)
{
    int reg1;
    EXPECT(reg1 = rtl_alloc_register(unit, RTLTYPE_FLOAT32));
    EXPECT(rtl_add_insn(unit, RTLOP_LOAD_IMM, reg1, 0, 0, 0x3F800000));

    /* None of these should not be eliminated without BINREC_OPT_DSE_FP. */
    int reg2, reg3, reg4, reg5;
    EXPECT(reg2 = rtl_alloc_register(unit, RTLTYPE_FLOAT64));
    EXPECT(rtl_add_insn(unit, RTLOP_FCVT, reg2, reg1, 0, 0));
    EXPECT(reg3 = rtl_alloc_register(unit, RTLTYPE_INT32));
    EXPECT(rtl_add_insn(unit, RTLOP_FTRUNCI, reg3, reg1, 0, 0));
    EXPECT(reg4 = rtl_alloc_register(unit, RTLTYPE_FLOAT32));
    EXPECT(rtl_add_insn(unit, RTLOP_FADD, reg4, reg1, reg1, 0));
    EXPECT(reg5 = rtl_alloc_register(unit, RTLTYPE_FLOAT32));
    EXPECT(rtl_add_insn(unit, RTLOP_FNMSUB, reg5, reg1, reg1, reg1));

    int reg6, reg7;
    EXPECT(reg6 = rtl_alloc_register(unit, RTLTYPE_V2_FLOAT32));
    EXPECT(rtl_add_insn(unit, RTLOP_VBROADCAST, reg6, reg1, 0, 0));
    EXPECT(reg7 = rtl_alloc_register(unit, RTLTYPE_V2_FLOAT64));
    EXPECT(rtl_add_insn(unit, RTLOP_VFCVT, reg7, reg6, 0, 0));

    return EXIT_SUCCESS;
}

static const char expected[] =
    #ifdef RTL_DEBUG_OPTIMIZE
        "[info] Dropping dead store to r2 at 1\n"
        "[info] Not killing instruction 1 for FP exception safety\n"
        "[info] Dropping dead store to r3 at 2\n"
        "[info] Not killing instruction 2 for FP exception safety\n"
        "[info] Dropping dead store to r4 at 3\n"
        "[info] Not killing instruction 3 for FP exception safety\n"
        "[info] Dropping dead store to r5 at 4\n"
        "[info] Not killing instruction 4 for FP exception safety\n"
        "[info] Dropping dead store to r7 at 6\n"
        "[info] Not killing instruction 6 for FP exception safety\n"
    #endif
    "    0: LOAD_IMM   r1, 1.0f\n"
    "    1: FCVT       r2, r1\n"
    "    2: FTRUNCI    r3, r1\n"
    "    3: FADD       r4, r1, r1\n"
    "    4: FNMSUB     r5, r1, r1, r1\n"
    "    5: VBROADCAST r6, r1\n"
    "    6: VFCVT      r7, r6\n"
    "\n"
    "Block 0: <none> --> [0,6] --> <none>\n"
    ;

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