| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fno-trapping-math -fdump-tree-ifcombine-details-blocks" } */ |
| |
| void f (); |
| enum Sign { NEG=-1, ZERO, POS }; |
| |
| static inline enum Sign sign (double x) |
| { |
| if (x > 0) return POS; |
| if (x < 0) return NEG; |
| return ZERO; |
| } |
| void g (double x) |
| { |
| if (sign (x) == NEG) f(); |
| } |
| |
| /* The above should be optimized to x < 0 by ifcombine. |
| The transformation would also be legal with -ftrapping-math. */ |
| |
| /* { dg-final { scan-tree-dump "optimizing.* < " "ifcombine" } } */ |
| /* { dg-final { scan-tree-dump-not "Invalid sum" "ifcombine" } } */ |
