Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/torture/fp-int-convert-float128-timode-3.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children | 1830386684a0 |
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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-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); }