derek.holloway
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139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_mulvsi3
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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 __mulvsi3(si_int a, si_int b);
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int test__mulvsi3(si_int a, si_int b, si_int expected)
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{
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si_int x = __mulvsi3(a, b);
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if (x != expected)
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printf("error in __mulvsi3: %d * %d = %d, expected %d\n",
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a, b, x, expected);
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return x != expected;
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}
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int main()
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{
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if (test__mulvsi3(0, 0, 0))
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return 1;
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if (test__mulvsi3(0, 1, 0))
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return 1;
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if (test__mulvsi3(1, 0, 0))
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return 1;
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if (test__mulvsi3(0, 10, 0))
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return 1;
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if (test__mulvsi3(10, 0, 0))
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return 1;
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if (test__mulvsi3(0, 0x1234567, 0))
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return 1;
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if (test__mulvsi3(0x1234567, 0, 0))
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return 1;
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if (test__mulvsi3(0, -1, 0))
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return 1;
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if (test__mulvsi3(-1, 0, 0))
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return 1;
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if (test__mulvsi3(0, -10, 0))
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return 1;
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if (test__mulvsi3(-10, 0, 0))
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return 1;
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if (test__mulvsi3(0, -0x1234567, 0))
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return 1;
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if (test__mulvsi3(-0x1234567, 0, 0))
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return 1;
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if (test__mulvsi3(1, 1, 1))
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return 1;
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if (test__mulvsi3(1, 10, 10))
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return 1;
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if (test__mulvsi3(10, 1, 10))
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return 1;
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if (test__mulvsi3(1, 0x1234567, 0x1234567))
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return 1;
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if (test__mulvsi3(0x1234567, 1, 0x1234567))
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return 1;
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if (test__mulvsi3(1, -1, -1))
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return 1;
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if (test__mulvsi3(1, -10, -10))
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return 1;
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if (test__mulvsi3(-10, 1, -10))
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return 1;
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if (test__mulvsi3(1, -0x1234567, -0x1234567))
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return 1;
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if (test__mulvsi3(-0x1234567, 1, -0x1234567))
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return 1;
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// if (test__mulvsi3(0x7FFFFFFF, -2, 0x80000001)) // abort
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// return 1;
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// if (test__mulvsi3(-2, 0x7FFFFFFF, 0x80000001)) // abort
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// return 1;
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if (test__mulvsi3(0x7FFFFFFF, -1, 0x80000001))
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return 1;
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if (test__mulvsi3(-1, 0x7FFFFFFF, 0x80000001))
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return 1;
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if (test__mulvsi3(0x7FFFFFFF, 0, 0))
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return 1;
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if (test__mulvsi3(0, 0x7FFFFFFF, 0))
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return 1;
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if (test__mulvsi3(0x7FFFFFFF, 1, 0x7FFFFFFF))
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return 1;
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if (test__mulvsi3(1, 0x7FFFFFFF, 0x7FFFFFFF))
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return 1;
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// if (test__mulvsi3(0x7FFFFFFF, 2, 0x80000001)) // abort
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// return 1;
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// if (test__mulvsi3(2, 0x7FFFFFFF, 0x80000001)) // abort
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// return 1;
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// if (test__mulvsi3(0x80000000, -2, 0x80000000)) // abort
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// return 1;
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// if (test__mulvsi3(-2, 0x80000000, 0x80000000)) // abort
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// return 1;
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// if (test__mulvsi3(0x80000000, -1, 0x80000000)) // abort
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// return 1;
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// if (test__mulvsi3(-1, 0x80000000, 0x80000000)) // abort
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// return 1;
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if (test__mulvsi3(0x80000000, 0, 0))
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return 1;
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if (test__mulvsi3(0, 0x80000000, 0))
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return 1;
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if (test__mulvsi3(0x80000000, 1, 0x80000000))
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return 1;
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if (test__mulvsi3(1, 0x80000000, 0x80000000))
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return 1;
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// if (test__mulvsi3(0x80000000, 2, 0x80000000)) // abort
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// return 1;
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// if (test__mulvsi3(2, 0x80000000, 0x80000000)) // abort
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// return 1;
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// if (test__mulvsi3(0x80000001, -2, 0x80000001)) // abort
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// return 1;
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// if (test__mulvsi3(-2, 0x80000001, 0x80000001)) // abort
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// return 1;
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if (test__mulvsi3(0x80000001, -1, 0x7FFFFFFF))
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return 1;
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if (test__mulvsi3(-1, 0x80000001, 0x7FFFFFFF))
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return 1;
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if (test__mulvsi3(0x80000001, 0, 0))
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return 1;
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if (test__mulvsi3(0, 0x80000001, 0))
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return 1;
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if (test__mulvsi3(0x80000001, 1, 0x80000001))
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return 1;
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if (test__mulvsi3(1, 0x80000001, 0x80000001))
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return 1;
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// if (test__mulvsi3(0x80000001, 2, 0x80000000)) // abort
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// return 1;
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// if (test__mulvsi3(2, 0x80000001, 0x80000000)) // abort
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// return 1;
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return 0;
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}
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