tests/test-progs/insttest/src/riscv/rv64m.cpp

   1 /*
   2  * Copyright (c) 2016 The University of Virginia
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <cstdint>
  30 #include <limits>
  31
  32 #include "insttest.h"
  33 #include "rv64m.h"
  34
  35 int main()
  36 {
  37     using namespace std;
  38     using namespace insttest;
  39
  40     // MUL
  41     expect<int64_t>(39285, []{return M::mul(873, 45);}, "mul");
  42     expect<int64_t>(0, []{return M::mul(0x4000000000000000LL, 4);},
  43             "mul, overflow");
  44
  45     // MULH
  46     expect<int64_t>(1, []{return M::mulh(0x4000000000000000LL, 4);}, "mulh");
  47     expect<int64_t>(-1, []{return M::mulh(numeric_limits<int64_t>::min(), 2);},
  48             "mulh, negative");
  49     expect<int64_t>(0, []{return M::mulh(-1, -1);}, "mulh, all bits set");
  50
  51     // MULHSU
  52     expect<int64_t>(-1, []{return M::mulhsu(-1, -1);}, "mulhsu, all bits set");
  53     expect<int64_t>(-1,
  54             []{return M::mulhsu(numeric_limits<int64_t>::min(), 2);},\
  55             "mulhsu");
  56
  57     // MULHU
  58     expect<uint64_t>(1, []{return M::mulhu(0x8000000000000000ULL, 2);},
  59             "mulhu");
  60     expect<uint64_t>(0xFFFFFFFFFFFFFFFEULL, []{return M::mulhu(-1, -1);},
  61             "mulhu, all bits set");
  62
  63     // DIV
  64     expect<int64_t>(-7, []{return M::div(-59, 8);}, "div");
  65     expect<int64_t>(-1, []{return M::div(255, 0);}, "div/0");
  66     expect<int64_t>(numeric_limits<int64_t>::min(),
  67             []{return M::div(numeric_limits<int64_t>::min(), -1);},
  68             "div, overflow");
  69
  70     // DIVU
  71     expect<uint64_t>(2305843009213693944LL, []{return M::divu(-59, 8);},
  72             "divu");
  73     expect<uint64_t>(numeric_limits<uint64_t>::max(),
  74             []{return M::divu(255, 0);}, "divu/0");
  75     expect<uint64_t>(0,
  76             []{return M::divu(numeric_limits<uint64_t>::min(), -1);},
  77             "divu, \"overflow\"");
  78
  79     // REM
  80     expect<int64_t>(-3, []{return M::rem(-59, 8);}, "rem");
  81     expect<int64_t>(255, []{return M::rem(255, 0);}, "rem/0");
  82     expect<int64_t>(0, []{return M::rem(numeric_limits<int64_t>::min(), -1);},
  83             "rem, overflow");
  84
  85     // REMU
  86     expect<uint64_t>(5, []{return M::remu(-59, 8);}, "remu");
  87     expect<uint64_t>(255, []{return M::remu(255, 0);}, "remu/0");
  88     expect<uint64_t>(0x8000000000000000ULL,
  89             []{return M::remu(0x8000000000000000ULL, -1);},
  90             "remu, \"overflow\"");
  91
  92     // MULW
  93     expect<int64_t>(-100,
  94             []{return M::mulw(0x7FFFFFFF00000005LL, 0x80000000FFFFFFECLL);},
  95             "mulw, truncate");
  96     expect<int64_t>(0, []{return M::mulw(0x40000000, 4);}, "mulw, overflow");
  97
  98     // DIVW
  99     expect<int64_t>(-7,
 100             []{return M::divw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
 101             "divw, truncate");
 102     expect<int64_t>(-1, []{return M::divw(65535, 0);}, "divw/0");
 103     expect<int64_t>(numeric_limits<int32_t>::min(),
 104             []{return M::divw(numeric_limits<int32_t>::min(), -1);},
 105             "divw, overflow");
 106
 107     // DIVUW
 108     expect<int64_t>(536870904,
 109             []{return M::divuw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
 110             "divuw, truncate");
 111     expect<int64_t>(numeric_limits<uint64_t>::max(),
 112             []{return M::divuw(65535, 0);}, "divuw/0");
 113     expect<int64_t>(0,
 114             []{return M::divuw(numeric_limits<int32_t>::min(), -1);},
 115             "divuw, \"overflow\"");
 116     expect<int64_t>(-1,
 117             []{return M::divuw(numeric_limits<uint32_t>::max(), 1);},
 118             "divuw, sign extend");
 119
 120     // REMW
 121     expect<int64_t>(-3,
 122             []{return M::remw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
 123             "remw, truncate");
 124     expect<int64_t>(65535, []{return M::remw(65535, 0);}, "remw/0");
 125     expect<int64_t>(0, []{return M::remw(numeric_limits<int32_t>::min(), -1);},
 126             "remw, overflow");
 127
 128     // REMUW
 129     expect<int64_t>(5,
 130             []{return M::remuw(0x7FFFFFFFFFFFFFC5LL, 0xFFFFFFFF00000008LL);},
 131             "remuw, truncate");
 132     expect<int64_t>(65535, []{return M::remuw(65535, 0);}, "remuw/0");
 133     expect<int64_t>(numeric_limits<int32_t>::min(),
 134             []{return M::remuw(numeric_limits<int32_t>::min(), -1);},
 135             "remuw, \"overflow\"");
 136     expect<int64_t>(0xFFFFFFFF80000000,
 137             []{return M::remuw(0x80000000, 0xFFFFFFFF);},
 138             "remuw, sign extend");
 139
 140     return 0;
 141 }