File: c99-contract-1.c

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gcc-arm-none-eabi 15%3A14.2.rel1-1
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/* Test floating-point contraction occurs only within source language
   expressions.  */
/* { dg-do run } */
/* { dg-options "-std=c99 -pedantic-errors" } */
/* { dg-skip-if "ptx only loosely follows IEEE" { "nvptx-*-*" } } */

extern void abort (void);
extern void exit (int);

volatile float a = 1 + 0x1p-23f, b = 1 - 0x1p-23f, c = -1;

int
main (void)
{
  float av = a, bv = b, cv = c;
  float p = av * bv;
  float r = p + cv;
  if (r == 0)
    exit (0);
  else
    abort ();
}