forked from OSchip/llvm-project
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
//===-- fixunsxfsi_test.c - Test __fixunsxfsi -----------------------------===//
|
|
//
|
|
// 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 __fixunsxfsi for the compiler_rt library.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "int_lib.h"
|
|
#include <stdio.h>
|
|
|
|
#if HAS_80_BIT_LONG_DOUBLE
|
|
// Returns: convert a to a unsigned int, rounding toward zero.
|
|
// Negative values all become zero.
|
|
|
|
// Assumption: long double is an intel 80 bit floating point type padded with 6 bytes
|
|
// su_int is a 32 bit integral type
|
|
// value in long double is representable in su_int or is negative
|
|
// (no range checking performed)
|
|
|
|
// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
|
|
// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
|
|
|
|
su_int __fixunsxfsi(long double a);
|
|
|
|
int test__fixunsxfsi(long double a, su_int expected)
|
|
{
|
|
su_int x = __fixunsxfsi(a);
|
|
if (x != expected)
|
|
printf("error in __fixunsxfsi(%LA) = %X, expected %X\n", a, x, expected);
|
|
return x != expected;
|
|
}
|
|
|
|
char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0};
|
|
char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
|
|
#endif
|
|
|
|
int main()
|
|
{
|
|
#if HAS_80_BIT_LONG_DOUBLE
|
|
if (test__fixunsxfsi(0.0, 0))
|
|
return 1;
|
|
|
|
if (test__fixunsxfsi(0.5, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(0.99, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(1.0, 1))
|
|
return 1;
|
|
if (test__fixunsxfsi(1.5, 1))
|
|
return 1;
|
|
if (test__fixunsxfsi(1.99, 1))
|
|
return 1;
|
|
if (test__fixunsxfsi(2.0, 2))
|
|
return 1;
|
|
if (test__fixunsxfsi(2.01, 2))
|
|
return 1;
|
|
if (test__fixunsxfsi(-0.5, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(-0.99, 0))
|
|
return 1;
|
|
#if !TARGET_LIBGCC
|
|
if (test__fixunsxfsi(-1.0, 0)) // libgcc ignores "returns 0 for negative input" spec
|
|
return 1;
|
|
if (test__fixunsxfsi(-1.5, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(-1.99, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(-2.0, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(-2.01, 0))
|
|
return 1;
|
|
#endif
|
|
|
|
if (test__fixunsxfsi(0x1.000000p+31, 0x80000000))
|
|
return 1;
|
|
if (test__fixunsxfsi(0x1.FFFFFEp+31, 0xFFFFFF00))
|
|
return 1;
|
|
if (test__fixunsxfsi(0x1.FFFFFEp+30, 0x7FFFFF80))
|
|
return 1;
|
|
if (test__fixunsxfsi(0x1.FFFFFCp+30, 0x7FFFFF00))
|
|
return 1;
|
|
|
|
#if !TARGET_LIBGCC
|
|
if (test__fixunsxfsi(-0x1.FFFFFEp+30, 0))
|
|
return 1;
|
|
if (test__fixunsxfsi(-0x1.FFFFFCp+30, 0))
|
|
return 1;
|
|
#endif
|
|
|
|
if (test__fixunsxfsi(0x1.FFFFFFFEp+31, 0xFFFFFFFF))
|
|
return 1;
|
|
if (test__fixunsxfsi(0x1.FFFFFFFC00000p+30, 0x7FFFFFFF))
|
|
return 1;
|
|
if (test__fixunsxfsi(0x1.FFFFFFF800000p+30, 0x7FFFFFFE))
|
|
return 1;
|
|
|
|
#endif
|
|
return 0;
|
|
}
|