| /* { dg-do compile } */ |
| /* { dg-options "-O1 -fno-trapping-math -fno-finite-math-only -fdump-tree-gimple -fdump-tree-optimized" } */ |
| |
| extern void f(int); |
| extern void link_error (); |
| |
| extern float x; |
| extern double y; |
| extern long double z; |
| |
| int |
| main () |
| { |
| double nan = __builtin_nan (""); |
| float nanf = __builtin_nanf (""); |
| long double nanl = __builtin_nanl (""); |
| |
| if (!__builtin_isnan (nan)) |
| link_error (); |
| if (!__builtin_isnan (nanf)) |
| link_error (); |
| if (!__builtin_isnanf (nanf)) |
| link_error (); |
| if (!__builtin_isnan (nanl)) |
| link_error (); |
| if (!__builtin_isnanl (nanl)) |
| link_error (); |
| |
| if (__builtin_isnan (4.0)) |
| link_error (); |
| if (__builtin_isnan (4.0)) |
| link_error (); |
| if (__builtin_isnanf (4.0)) |
| link_error (); |
| if (__builtin_isnan (4.0)) |
| link_error (); |
| if (__builtin_isnanl (4.0)) |
| link_error (); |
| |
| f (__builtin_isnan (x)); |
| f (__builtin_isnan (y)); |
| f (__builtin_isnanf (y)); |
| f (__builtin_isnan (z)); |
| f (__builtin_isnanl (z)); |
| } |
| |
| |
| /* Check that all instances of __builtin_isnan were folded. */ |
| /* { dg-final { scan-tree-dump-times "isnan" 0 "gimple" } } */ |
| |
| /* Check that all instances of link_error were subject to DCE. */ |
| /* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } */ |
