| /* PR target/95450 */ |
| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-optimized" } */ |
| /* { dg-final { scan-tree-dump-not "return \[0-9.e+]\+;" "optimized" } } */ |
| |
| /* Verify this is not optimized for double double into return floating_point_constant, |
| as while that constant is the maximum normalized floating point value, it needs |
| 107 bit precision, which is more than GCC supports for this format. */ |
| |
| #if __LDBL_MANT_DIG__ == 106 |
| union U |
| { |
| struct { double hi; double lo; } dd; |
| long double ld; |
| }; |
| |
| const union U g = { { __DBL_MAX__, __DBL_MAX__ / (double)134217728UL / (double)134217728UL } }; |
| #else |
| struct S |
| { |
| long double ld; |
| } g; |
| #endif |
| |
| long double |
| foo (void) |
| { |
| return g.ld; |
| } |
