compiler-rt/test/builtins/Unit/lshrti3_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_lshrti3
   3 // REQUIRES: int128
   4 //===-- lshrti3_test.c - Test __lshrti3 -----------------------------------===//
   5 //
   6 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   7 // See https://llvm.org/LICENSE.txt for license information.
   8 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   9 //
  10 //===----------------------------------------------------------------------===//
  11 //
  12 // This file tests __lshrti3 for the compiler_rt library.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #include "int_lib.h"
  17 #include <stdio.h>
  18
  19 #ifdef CRT_HAS_128BIT
  20
  21 // Returns: logical a >> b
  22
  23 // Precondition:  0 <= b < bits_in_dword
  24
  25 COMPILER_RT_ABI ti_int __lshrti3(ti_int a, si_int b);
  26
  27 int test__lshrti3(ti_int a, si_int b, ti_int expected)
  28 {
  29     ti_int x = __lshrti3(a, b);
  30     if (x != expected)
  31     {
  32         twords at;
  33         at.all = a;
  34         twords xt;
  35         xt.all = x;
  36         twords expectedt;
  37         expectedt.all = expected;
  38         printf("error in __lshrti3: 0x%llX%.16llX >> %d = 0x%llX%.16llX,"
  39                " expected 0x%llX%.16llX\n",
  40                 at.s.high, at.s.low, b, xt.s.high, xt.s.low,
  41                 expectedt.s.high, expectedt.s.low);
  42     }
  43     return x != expected;
  44 }
  45
  46 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
  47
  48 #endif
  49
  50 int main()
  51 {
  52 #ifdef CRT_HAS_128BIT
  53     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 0,
  54                       make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL)))
  55         return 1;
  56     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 1,
  57                       make_ti(0x7F6E5D4C3B2A190ALL, 0xFF6E5D4C3B2A190ALL)))
  58         return 1;
  59     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 2,
  60                       make_ti(0x3FB72EA61D950C85LL, 0x7FB72EA61D950C85LL)))
  61         return 1;
  62     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 3,
  63                       make_ti(0x1FDB97530ECA8642LL, 0xBFDB97530ECA8642LL)))
  64         return 1;
  65     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 4,
  66                       make_ti(0x0FEDCBA987654321LL, 0x5FEDCBA987654321LL)))
  67         return 1;
  68
  69     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 28,
  70                       make_ti(0x0000000FEDCBA987LL, 0x6543215FEDCBA987LL)))
  71         return 1;
  72     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 29,
  73                       make_ti(0x00000007F6E5D4C3LL, 0xB2A190AFF6E5D4C3LL)))
  74         return 1;
  75     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 30,
  76                       make_ti(0x00000003FB72EA61LL, 0xD950C857FB72EA61LL)))
  77         return 1;
  78     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 31,
  79                       make_ti(0x00000001FDB97530LL, 0xECA8642BFDB97530LL)))
  80         return 1;
  81
  82     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 32,
  83                       make_ti(0x00000000FEDCBA98LL, 0x76543215FEDCBA98LL)))
  84         return 1;
  85
  86     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 33,
  87                       make_ti(0x000000007F6E5D4CLL, 0x3B2A190AFF6E5D4CLL)))
  88         return 1;
  89     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 34,
  90                       make_ti(0x000000003FB72EA6LL, 0x1D950C857FB72EA6LL)))
  91         return 1;
  92     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 35,
  93                       make_ti(0x000000001FDB9753LL, 0x0ECA8642BFDB9753LL)))
  94         return 1;
  95     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 36,
  96                       make_ti(0x000000000FEDCBA9LL, 0x876543215FEDCBA9LL)))
  97         return 1;
  98
  99     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 60,
 100                       make_ti(0x000000000000000FLL, 0xEDCBA9876543215FLL)))
 101         return 1;
 102     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 61,
 103                       make_ti(0x0000000000000007LL, 0xF6E5D4C3B2A190AFLL)))
 104         return 1;
 105     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 62,
 106                       make_ti(0x0000000000000003LL, 0xFB72EA61D950C857LL)))
 107         return 1;
 108     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 63,
 109                       make_ti(0x0000000000000001LL, 0xFDB97530ECA8642BLL)))
 110         return 1;
 111
 112     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 64,
 113                       make_ti(0x0000000000000000LL, 0xFEDCBA9876543215LL)))
 114         return 1;
 115
 116     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 65,
 117                       make_ti(0x0000000000000000LL, 0x7F6E5D4C3B2A190ALL)))
 118         return 1;
 119     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 66,
 120                       make_ti(0x0000000000000000LL, 0x3FB72EA61D950C85LL)))
 121         return 1;
 122     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 67,
 123                       make_ti(0x0000000000000000LL, 0x1FDB97530ECA8642LL)))
 124         return 1;
 125     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 68,
 126                       make_ti(0x0000000000000000LL, 0x0FEDCBA987654321LL)))
 127         return 1;
 128
 129     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 92,
 130                       make_ti(0x0000000000000000LL, 0x0000000FEDCBA987LL)))
 131         return 1;
 132     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 93,
 133                       make_ti(0x0000000000000000LL, 0x00000007F6E5D4C3LL)))
 134         return 1;
 135     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 94,
 136                       make_ti(0x0000000000000000LL, 0x00000003FB72EA61LL)))
 137         return 1;
 138     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 95,
 139                       make_ti(0x0000000000000000LL, 0x00000001FDB97530LL)))
 140         return 1;
 141
 142     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 96,
 143                       make_ti(0x0000000000000000LL, 0x00000000FEDCBA98LL)))
 144         return 1;
 145
 146     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 97,
 147                       make_ti(0x0000000000000000LL, 0x000000007F6E5D4CLL)))
 148         return 1;
 149     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 98,
 150                       make_ti(0x0000000000000000LL, 0x000000003FB72EA6LL)))
 151         return 1;
 152     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 99,
 153                       make_ti(0x0000000000000000LL, 0x000000001FDB9753LL)))
 154         return 1;
 155     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 100,
 156                       make_ti(0x0000000000000000LL, 0x000000000FEDCBA9LL)))
 157         return 1;
 158
 159     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 124,
 160                       make_ti(0x0000000000000000LL, 0x000000000000000FLL)))
 161         return 1;
 162     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 125,
 163                       make_ti(0x0000000000000000LL, 0x0000000000000007LL)))
 164         return 1;
 165     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 126,
 166                       make_ti(0x0000000000000000LL, 0x0000000000000003LL)))
 167         return 1;
 168     if (test__lshrti3(make_ti(0xFEDCBA9876543215LL, 0xFEDCBA9876543215LL), 127,
 169                       make_ti(0x0000000000000000LL, 0x0000000000000001LL)))
 170         return 1;
 171 #else
 172     printf("skipped\n");
 173 #endif
 174     return 0;
 175 }