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// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
// RUN: %clang_builtins %s %librt -o %t && %run %t
//===-- aeabi_frsub.c - Test __aeabi_frsub --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file tests __aeabi_frsub for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#if __arm__
extern __attribute__((pcs("aapcs"))) float __aeabi_frsub(float a, float b);
int test__aeabi_frsub(float a, float b, float expected)
{
float actual = __aeabi_frsub(a, b);
if (actual != expected)
printf("error in __aeabi_frsub(%f, %f) = %f, expected %f\n",
a, b, actual, expected);
return actual != expected;
}
#endif
int main()
{
#if __arm__
if (test__aeabi_frsub(1.0, 1.0, 0.0))
return 1;
if (test__aeabi_frsub(1234.567, 765.4321, -469.134900))
return 1;
if (test__aeabi_frsub(-123.0, -678.0, -555.0))
return 1;
if (test__aeabi_frsub(0.0, -0.0, 0.0))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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