| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-pre-stats" } */ |
| |
| struct Loc { |
| int x[3]; |
| }; |
| |
| void bar (struct Loc *); |
| |
| int foo (int i, int j, int k, int b) |
| { |
| struct Loc IND; |
| int res; |
| |
| if (b) |
| { |
| IND.x[0] = i; |
| IND.x[1] = j; |
| IND.x[2] = k-1; |
| } |
| else |
| { |
| IND.x[0] = i; |
| IND.x[1] = j; |
| IND.x[2] = k; |
| } |
| |
| /* This should be optimized to i + j + {k, k + 1}. */ |
| res = IND.x[0] + IND.x[1] + IND.x[2]; |
| |
| /* This is just to prevent SRA. */ |
| bar (&IND); |
| |
| return res; |
| } |
| |
| /* All three loads should be eliminated. */ |
| /* { dg-final { scan-tree-dump "Eliminated: 3" "pre" } } */ |
