| /* glibc bug, https://sourceware.org/ml/libc-alpha/2017-04/msg00256.html |
| When using software completions, we have to prevent assembler to match |
| input and output operands of sqrtt/sqrtf insn. Fixed in glibc 2.26. */ |
| /* { dg-do run } */ |
| /* { dg-options "-O2 -fno-builtin-sqrt -mieee" } */ |
| |
| double sqrt (double); |
| |
| static double |
| float64frombits (unsigned long b) |
| { |
| union { unsigned long __b; double __d; } u = { .__b = b }; |
| return u.__d; |
| } |
| |
| int |
| main (void) |
| { |
| double a = float64frombits (2); |
| |
| if (sqrt (a) != 3.1434555694052576e-162) |
| __builtin_abort (); |
| |
| return 0; |
| } |
