forked from OSchip/llvm-project
157 lines
4.5 KiB
C
157 lines
4.5 KiB
C
//===-- mulosi4_test.c - Test __mulosi4 -----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file tests __mulosi4 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include "int_lib.h"
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#include <stdio.h>
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// Returns: a * b
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// Effects: aborts if a * b overflows
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COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow);
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int test__mulosi4(si_int a, si_int b, si_int expected, int expected_overflow)
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{
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int ov;
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si_int x = __mulosi4(a, b, &ov);
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if (ov != expected_overflow)
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printf("error in __mulosi4: overflow=%d expected=%d\n",
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ov, expected_overflow);
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else if (!expected_overflow && x != expected) {
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printf("error in __mulosi4: 0x%X * 0x%X = 0x%X (overflow=%d), "
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"expected 0x%X (overflow=%d)\n",
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a, b, x, ov, expected, expected_overflow);
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return 1;
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}
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return 0;
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}
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int main()
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{
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if (test__mulosi4(0, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, 1, 0, 0))
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return 1;
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if (test__mulosi4(1, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, 10, 0, 0))
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return 1;
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if (test__mulosi4(10, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, 0x1234567, 0, 0))
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return 1;
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if (test__mulosi4(0x1234567, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, -1, 0, 0))
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return 1;
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if (test__mulosi4(-1, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, -10, 0, 0))
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return 1;
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if (test__mulosi4(-10, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, -0x1234567, 0, 0))
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return 1;
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if (test__mulosi4(-0x1234567, 0, 0, 0))
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return 1;
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if (test__mulosi4(1, 1, 1, 0))
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return 1;
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if (test__mulosi4(1, 10, 10, 0))
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return 1;
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if (test__mulosi4(10, 1, 10, 0))
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return 1;
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if (test__mulosi4(1, 0x1234567, 0x1234567, 0))
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return 1;
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if (test__mulosi4(0x1234567, 1, 0x1234567, 0))
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return 1;
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if (test__mulosi4(1, -1, -1, 0))
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return 1;
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if (test__mulosi4(1, -10, -10, 0))
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return 1;
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if (test__mulosi4(-10, 1, -10, 0))
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return 1;
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if (test__mulosi4(1, -0x1234567, -0x1234567, 0))
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return 1;
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if (test__mulosi4(-0x1234567, 1, -0x1234567, 0))
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return 1;
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if (test__mulosi4(0x7FFFFFFF, -2, 0x80000001, 1))
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return 1;
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if (test__mulosi4(-2, 0x7FFFFFFF, 0x80000001, 1))
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return 1;
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if (test__mulosi4(0x7FFFFFFF, -1, 0x80000001, 0))
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return 1;
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if (test__mulosi4(-1, 0x7FFFFFFF, 0x80000001, 0))
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return 1;
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if (test__mulosi4(0x7FFFFFFF, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, 0x7FFFFFFF, 0, 0))
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return 1;
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if (test__mulosi4(0x7FFFFFFF, 1, 0x7FFFFFFF, 0))
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return 1;
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if (test__mulosi4(1, 0x7FFFFFFF, 0x7FFFFFFF, 0))
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return 1;
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if (test__mulosi4(0x7FFFFFFF, 2, 0x80000001, 1))
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return 1;
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if (test__mulosi4(2, 0x7FFFFFFF, 0x80000001, 1))
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return 1;
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if (test__mulosi4(0x80000000, -2, 0x80000000, 1))
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return 1;
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if (test__mulosi4(-2, 0x80000000, 0x80000000, 1))
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return 1;
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if (test__mulosi4(0x80000000, -1, 0x80000000, 1))
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return 1;
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if (test__mulosi4(-1, 0x80000000, 0x80000000, 1))
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return 1;
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if (test__mulosi4(0x80000000, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, 0x80000000, 0, 0))
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return 1;
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if (test__mulosi4(0x80000000, 1, 0x80000000, 0))
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return 1;
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if (test__mulosi4(1, 0x80000000, 0x80000000, 0))
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return 1;
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if (test__mulosi4(0x80000000, 2, 0x80000000, 1))
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return 1;
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if (test__mulosi4(2, 0x80000000, 0x80000000, 1))
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return 1;
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if (test__mulosi4(0x80000001, -2, 0x80000001, 1))
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return 1;
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if (test__mulosi4(-2, 0x80000001, 0x80000001, 1))
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return 1;
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if (test__mulosi4(0x80000001, -1, 0x7FFFFFFF, 0))
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return 1;
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if (test__mulosi4(-1, 0x80000001, 0x7FFFFFFF, 0))
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return 1;
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if (test__mulosi4(0x80000001, 0, 0, 0))
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return 1;
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if (test__mulosi4(0, 0x80000001, 0, 0))
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return 1;
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if (test__mulosi4(0x80000001, 1, 0x80000001, 0))
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return 1;
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if (test__mulosi4(1, 0x80000001, 0x80000001, 0))
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return 1;
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if (test__mulosi4(0x80000001, 2, 0x80000000, 1))
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return 1;
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if (test__mulosi4(2, 0x80000001, 0x80000000, 1))
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return 1;
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return 0;
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}
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