// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_floattixf
// REQUIRES: x86-target-arch
#include "int_lib.h"
#include <float.h>
#include <stdio.h>
#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE
// Returns: convert a to a long double, rounding toward even.
// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
// ti_int is a 128 bit integral type
// 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
COMPILER_RT_ABI long double __floattixf(ti_int a);
int test__floattixf(ti_int a, long double expected)
{
long double x = __floattixf(a);
if (x != expected)
{
twords at;
at.all = a;
printf("error in __floattixf(0x%.16llX%.16llX) = %LA, expected %LA\n",
at.s.high, at.s.low, x, expected);
}
return x != expected;
}
COMPILE_TIME_ASSERT(sizeof(ti_int) == 2*sizeof(di_int));
COMPILE_TIME_ASSERT(sizeof(ti_int)*CHAR_BIT == 128);
COMPILE_TIME_ASSERT(sizeof(long double)*CHAR_BIT == 128);
#endif
int main()
{
#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE
if (test__floattixf(0, 0.0))
return 1;
if (test__floattixf(1, 1.0))
return 1;
if (test__floattixf(2, 2.0))
return 1;
if (test__floattixf(20, 20.0))
return 1;
if (test__floattixf(-1, -1.0))
return 1;
if (test__floattixf(-2, -2.0))
return 1;
if (test__floattixf(-20, -20.0))
return 1;
if (test__floattixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
return 1;
if (test__floattixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
return 1;
if (test__floattixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
return 1;
if (test__floattixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
return 1;
if (test__floattixf(make_ti(0x8000008000000000LL, 0), -0x1.FFFFFEp+126))
return 1;
if (test__floattixf(make_ti(0x8000000000000800LL, 0), -0x1.FFFFFFFFFFFFEp+126))
return 1;
if (test__floattixf(make_ti(0x8000010000000000LL, 0), -0x1.FFFFFCp+126))
return 1;
if (test__floattixf(make_ti(0x8000000000001000LL, 0), -0x1.FFFFFFFFFFFFCp+126))
return 1;
if (test__floattixf(make_ti(0x8000000000000000LL, 0), -0x1.000000p+127))
return 1;
if (test__floattixf(make_ti(0x8000000000000001LL, 0), -0x1.FFFFFFFFFFFFFFFCp+126L))
return 1;
if (test__floattixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
return 1;
if (test__floattixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
return 1;
if (test__floattixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
return 1;
if (test__floattixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
return 1;
if (test__floattixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
return 1;
if (test__floattixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
return 1;
if (test__floattixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
return 1;
if (test__floattixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
return 1;
if (test__floattixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
return 1;
if (test__floattixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
return 1;
if (test__floattixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
return 1;
if (test__floattixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
return 1;
if (test__floattixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
return 1;
if (test__floattixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
return 1;
if (test__floattixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
return 1;
if (test__floattixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
return 1;
if (test__floattixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
return 1;
if (test__floattixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
return 1;
if (test__floattixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
0x1.2345678901234562p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
0x1.2345678901234562p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
0x1.2345678901234562p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
0x1.2345678901234564p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
0x1.2345678901234564p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
0x1.2345678901234564p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
0x1.2345678901234564p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
0x1.2345678901234566p+108L))
return 1;
if (test__floattixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
0x1.2345678901234566p+108L))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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