compiler-rt/test/builtins/Unit/riscv/mulsi3_test.c

   1 // REQUIRES: riscv32-target-arch
   2 // RUN: %clang_builtins %s %librt -o %t && %run %t
   3 //===-- mulsi3_test.c - Test __mulsi3 -------------------------------------===//
   4 //
   5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   6 // See https://llvm.org/LICENSE.txt for license information.
   7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file tests __mulsi3 for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "int_lib.h"
  16 #include <stdio.h>
  17 #include <limits.h>
  18
  19 #if !defined(__riscv_mul) && __riscv_xlen == 32
  20 // Based on mulsi3_test.c
  21
  22 COMPILER_RT_ABI si_int __mulsi3(si_int a, si_int b);
  23
  24 int test__mulsi3(si_int a, si_int b, si_int expected)
  25 {
  26     si_int x = __mulsi3(a, b);
  27     if (x != expected)
  28         printf("error in __mulsi3: %d * %d = %d, expected %d\n",
  29                a, b, __mulsi3(a, b), expected);
  30     return x != expected;
  31 }
  32 #endif
  33
  34 int main()
  35 {
  36 #if !defined(__riscv_mul) && __riscv_xlen == 32
  37     if (test__mulsi3(0, 0, 0))
  38         return 1;
  39     if (test__mulsi3(0, 1, 0))
  40         return 1;
  41     if (test__mulsi3(1, 0, 0))
  42         return 1;
  43     if (test__mulsi3(0, 10, 0))
  44         return 1;
  45     if (test__mulsi3(10, 0, 0))
  46         return 1;
  47     if (test__mulsi3(0, INT_MAX, 0))
  48         return 1;
  49     if (test__mulsi3(INT_MAX, 0, 0))
  50         return 1;
  51
  52     if (test__mulsi3(0, -1, 0))
  53         return 1;
  54     if (test__mulsi3(-1, 0, 0))
  55         return 1;
  56     if (test__mulsi3(0, -10, 0))
  57         return 1;
  58     if (test__mulsi3(-10, 0, 0))
  59         return 1;
  60     if (test__mulsi3(0, INT_MIN, 0))
  61         return 1;
  62     if (test__mulsi3(INT_MIN, 0, 0))
  63         return 1;
  64
  65     if (test__mulsi3(1, 1, 1))
  66         return 1;
  67     if (test__mulsi3(1, 10, 10))
  68         return 1;
  69     if (test__mulsi3(10, 1, 10))
  70         return 1;
  71     if (test__mulsi3(1, INT_MAX, INT_MAX))
  72         return 1;
  73     if (test__mulsi3(INT_MAX, 1, INT_MAX))
  74         return 1;
  75
  76     if (test__mulsi3(1, -1, -1))
  77         return 1;
  78     if (test__mulsi3(1, -10, -10))
  79         return 1;
  80     if (test__mulsi3(-10, 1, -10))
  81         return 1;
  82     if (test__mulsi3(1, INT_MIN, INT_MIN))
  83         return 1;
  84     if (test__mulsi3(INT_MIN, 1, INT_MIN))
  85         return 1;
  86
  87     if (test__mulsi3(46340, 46340, 2147395600))
  88         return 1;
  89     if (test__mulsi3(-46340, 46340, -2147395600))
  90         return 1;
  91     if (test__mulsi3(46340, -46340, -2147395600))
  92         return 1;
  93     if (test__mulsi3(-46340, -46340, 2147395600))
  94         return 1;
  95
  96     if (test__mulsi3(4194303, 8192, 34359730176))
  97         return 1;
  98     if (test__mulsi3(-4194303, 8192, -34359730176))
  99         return 1;
 100     if (test__mulsi3(4194303, -8192, -34359730176))
 101         return 1;
 102     if (test__mulsi3(-4194303, -8192, 34359730176))
 103         return 1;
 104
 105     if (test__mulsi3(8192, 4194303, 34359730176))
 106         return 1;
 107     if (test__mulsi3(-8192, 4194303, -34359730176))
 108         return 1;
 109     if (test__mulsi3(8192, -4194303, -34359730176))
 110         return 1;
 111     if (test__mulsi3(-8192, -4194303, 34359730176))
 112         return 1;
 113 #else
 114     printf("skipped\n");
 115 #endif
 116
 117     return 0;
 118 }