| /* { dg-do compile } */ |
| /* { dg-options "-O -fno-tree-sra -fdump-tree-fre1-details" } */ |
| #if (__SIZEOF_INT__ == __SIZEOF_FLOAT__) |
| typedef int intflt; |
| #elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__) |
| typedef long intflt; |
| #else |
| #error Add target support here for type that will union float size |
| #endif |
| union U { |
| intflt i; |
| float f; |
| }; |
| intflt foo(int i, int b) |
| { |
| union U u; |
| if (b) |
| { |
| i = i << 2; |
| u.i = i; |
| return u.f; |
| } |
| else |
| { |
| i = i << 2; |
| u.i = i; |
| return u.f; |
| } |
| } |
| |
| /* { dg-final { scan-tree-dump-times "Replaced u.f with" 2 "fre1" } } */ |
| /* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */ |
