| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-optimized -fno-tree-sra" } */ |
| |
| /* Even without SRA being enabled, we should be able to eliminate every structure store and load here. */ |
| extern void foo (const int); |
| int main(void) |
| { |
| struct a |
| { |
| int e; |
| int f; |
| int g; |
| } a; |
| struct a b; |
| int x, c; |
| a.e = 50; |
| a.f = 9; |
| a.g = a.e * a.f; |
| foo (a.f); |
| foo (a.g); |
| x = a.f; |
| c = a.e; |
| foo (x); |
| foo (c); |
| a.e = 5; |
| a.f = 40; |
| a.g = 90; |
| foo (a.e); |
| foo (a.f); |
| foo (a.g); |
| c = a.f; |
| foo (c); |
| b.e = 9; |
| a.e = b.e + 1 * c; |
| a.f = 30; |
| foo (a.e); |
| foo (a.f); |
| x = a.e * a.f; |
| foo (x); |
| |
| } |
| /* { dg-final { scan-tree-dump-times "a.e" 0 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times "a.f" 0 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times "a.g" 0 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times "b.e" 0 "optimized" } } */ |
