Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-timode-3.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
children |
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/* Test for correct rounding of conversions from __int128 to __float128. */ /* { dg-do run } */ /* { dg-require-effective-target __float128 } */ /* { dg-require-effective-target base_quadfloat_support } */ /* { dg-require-effective-target int128 } */ /* { dg-require-effective-target fenv } */ /* { dg-options "-frounding-math" } */ /* { dg-add-options __float128 } */ #include <fenv.h> #include <stdlib.h> int main (void) { volatile unsigned long long h = -1ULL; volatile unsigned __int128 u128 = (((unsigned __int128) h) << 64) | h; volatile __int128 s128 = u128 >> 1; fesetround (FE_TOWARDZERO); __float128 ru = u128, rs = s128; if (ru != 0x1.ffffffffffffffffffffffffffffp127q) abort (); if (rs != 0x1.ffffffffffffffffffffffffffffp126q) abort (); exit (0); }