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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_extendhfsf2
//===--------------- extendhfsf2_test.c - Test __extendhfsf2 --------------===//
//
// 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 __extendhfsf2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#include "fp_test.h"
float __extendhfsf2(uint16_t a);
int test__extendhfsf2(uint16_t a, float expected)
{
float x = __extendhfsf2(a);
int ret = compareResultH(x, expected);
if (ret){
printf("error in test__extendhfsf2(%#.4x) = %f, "
"expected %f\n", a, x, expected);
}
return ret;
}
char assumption_1[sizeof(__fp16) * CHAR_BIT == 16] = {0};
int main()
{
// qNaN
if (test__extendhfsf2(UINT16_C(0x7e00),
makeQNaN32()))
return 1;
// NaN
if (test__extendhfsf2(UINT16_C(0x7e00),
makeNaN32(UINT32_C(0x8000))))
return 1;
// inf
if (test__extendhfsf2(UINT16_C(0x7c00),
makeInf32()))
return 1;
if (test__extendhfsf2(UINT16_C(0xfc00),
-makeInf32()))
return 1;
// zero
if (test__extendhfsf2(UINT16_C(0x0),
0.0f))
return 1;
if (test__extendhfsf2(UINT16_C(0x8000),
-0.0f))
return 1;
if (test__extendhfsf2(UINT16_C(0x4248),
3.1415926535f))
return 1;
if (test__extendhfsf2(UINT16_C(0xc248),
-3.1415926535f))
return 1;
if (test__extendhfsf2(UINT16_C(0x7c00),
0x1.987124876876324p+100f))
return 1;
if (test__extendhfsf2(UINT16_C(0x6e62),
0x1.988p+12f))
return 1;
if (test__extendhfsf2(UINT16_C(0x3c00),
0x1.0p+0f))
return 1;
if (test__extendhfsf2(UINT16_C(0x0400),
0x1.0p-14f))
return 1;
// denormal
if (test__extendhfsf2(UINT16_C(0x0010),
0x1.0p-20f))
return 1;
if (test__extendhfsf2(UINT16_C(0x0001),
0x1.0p-24f))
return 1;
if (test__extendhfsf2(UINT16_C(0x8001),
-0x1.0p-24f))
return 1;
if (test__extendhfsf2(UINT16_C(0x0001),
0x1.5p-25f))
return 1;
// and back to zero
if (test__extendhfsf2(UINT16_C(0x0000),
0x1.0p-25f))
return 1;
if (test__extendhfsf2(UINT16_C(0x8000),
-0x1.0p-25f))
return 1;
// max (precise)
if (test__extendhfsf2(UINT16_C(0x7bff),
65504.0f))
return 1;
// max (rounded)
if (test__extendhfsf2(UINT16_C(0x7bff),
65504.0f))
return 1;
// max (to +inf)
if (test__extendhfsf2(UINT16_C(0x7c00),
makeInf32()))
return 1;
if (test__extendhfsf2(UINT16_C(0xfc00),
-makeInf32()))
return 1;
return 0;
}
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