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llvm-project/compiler-rt/test/builtins/Unit/mulosi4_test.c

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Implement mulo<mode>4 for use in signed overflow checking. Fixes rdar://9219742 and rdar://9218244 llvm-svn: 133284
2011-06-18 04:17:05 +08:00
//===-- mulosi4_test.c - Test __mulosi4 -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file tests __mulosi4 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
// Returns: a * b
// Effects: aborts if a * b overflows
Add COMPILER_RT_ABI attribute to declarations of builtin functions in unittests Summary: This makes their local declarations match their definitions for ARM targets, where they have a different calling convention. This really only affects functions that use floating point types (since the runtime functions use soft-float, and some targets may default to hard-float) but it seemed good to make it uniform and do the int-only ones too. Differential Revision: http://reviews.llvm.org/D9062 llvm-svn: 235722
2015-04-24 23:45:57 +08:00
COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow);
Implement mulo<mode>4 for use in signed overflow checking. Fixes rdar://9219742 and rdar://9218244 llvm-svn: 133284
2011-06-18 04:17:05 +08:00
int test__mulosi4(si_int a, si_int b, si_int expected, int expected_overflow)
{
int ov;
si_int x = __mulosi4(a, b, &ov);
if (ov != expected_overflow)
printf("error in __mulosi4: overflow=%d expected=%d\n",
ov, expected_overflow);
else if (!expected_overflow && x != expected) {
printf("error in __mulosi4: 0x%X * 0x%X = 0x%X (overflow=%d), "
"expected 0x%X (overflow=%d)\n",
a, b, x, ov, expected, expected_overflow);
return 1;
}
return 0;
}
int main()
{
if (test__mulosi4(0, 0, 0, 0))
return 1;
if (test__mulosi4(0, 1, 0, 0))
return 1;
if (test__mulosi4(1, 0, 0, 0))
return 1;
if (test__mulosi4(0, 10, 0, 0))
return 1;
if (test__mulosi4(10, 0, 0, 0))
return 1;
if (test__mulosi4(0, 0x1234567, 0, 0))
return 1;
if (test__mulosi4(0x1234567, 0, 0, 0))
return 1;
if (test__mulosi4(0, -1, 0, 0))
return 1;
if (test__mulosi4(-1, 0, 0, 0))
return 1;
if (test__mulosi4(0, -10, 0, 0))
return 1;
if (test__mulosi4(-10, 0, 0, 0))
return 1;
if (test__mulosi4(0, -0x1234567, 0, 0))
return 1;
if (test__mulosi4(-0x1234567, 0, 0, 0))
return 1;
if (test__mulosi4(1, 1, 1, 0))
return 1;
if (test__mulosi4(1, 10, 10, 0))
return 1;
if (test__mulosi4(10, 1, 10, 0))
return 1;
if (test__mulosi4(1, 0x1234567, 0x1234567, 0))
return 1;
if (test__mulosi4(0x1234567, 1, 0x1234567, 0))
return 1;
if (test__mulosi4(1, -1, -1, 0))
return 1;
if (test__mulosi4(1, -10, -10, 0))
return 1;
if (test__mulosi4(-10, 1, -10, 0))
return 1;
if (test__mulosi4(1, -0x1234567, -0x1234567, 0))
return 1;
if (test__mulosi4(-0x1234567, 1, -0x1234567, 0))
return 1;
if (test__mulosi4(0x7FFFFFFF, -2, 0x80000001, 1))
return 1;
if (test__mulosi4(-2, 0x7FFFFFFF, 0x80000001, 1))
return 1;
if (test__mulosi4(0x7FFFFFFF, -1, 0x80000001, 0))
return 1;
if (test__mulosi4(-1, 0x7FFFFFFF, 0x80000001, 0))
return 1;
if (test__mulosi4(0x7FFFFFFF, 0, 0, 0))
return 1;
if (test__mulosi4(0, 0x7FFFFFFF, 0, 0))
return 1;
if (test__mulosi4(0x7FFFFFFF, 1, 0x7FFFFFFF, 0))
return 1;
if (test__mulosi4(1, 0x7FFFFFFF, 0x7FFFFFFF, 0))
return 1;
if (test__mulosi4(0x7FFFFFFF, 2, 0x80000001, 1))
return 1;
if (test__mulosi4(2, 0x7FFFFFFF, 0x80000001, 1))
return 1;
if (test__mulosi4(0x80000000, -2, 0x80000000, 1))
return 1;
if (test__mulosi4(-2, 0x80000000, 0x80000000, 1))
return 1;
if (test__mulosi4(0x80000000, -1, 0x80000000, 1))
return 1;
if (test__mulosi4(-1, 0x80000000, 0x80000000, 1))
return 1;
if (test__mulosi4(0x80000000, 0, 0, 0))
return 1;
if (test__mulosi4(0, 0x80000000, 0, 0))
return 1;
if (test__mulosi4(0x80000000, 1, 0x80000000, 0))
return 1;
if (test__mulosi4(1, 0x80000000, 0x80000000, 0))
return 1;
if (test__mulosi4(0x80000000, 2, 0x80000000, 1))
return 1;
if (test__mulosi4(2, 0x80000000, 0x80000000, 1))
return 1;
if (test__mulosi4(0x80000001, -2, 0x80000001, 1))
return 1;
if (test__mulosi4(-2, 0x80000001, 0x80000001, 1))
return 1;
if (test__mulosi4(0x80000001, -1, 0x7FFFFFFF, 0))
return 1;
if (test__mulosi4(-1, 0x80000001, 0x7FFFFFFF, 0))
return 1;
if (test__mulosi4(0x80000001, 0, 0, 0))
return 1;
if (test__mulosi4(0, 0x80000001, 0, 0))
return 1;
if (test__mulosi4(0x80000001, 1, 0x80000001, 0))
return 1;
if (test__mulosi4(1, 0x80000001, 0x80000001, 0))
return 1;
if (test__mulosi4(0x80000001, 2, 0x80000000, 1))
return 1;
if (test__mulosi4(2, 0x80000001, 0x80000000, 1))
return 1;
return 0;
}