| /* { dg-do run } */ |
| /* { dg-options "-fdump-tree-alias" } */ |
| /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */ |
| |
| int *p; |
| void __attribute__((noinline,noclone)) |
| bar (void) |
| { |
| *p = 1; |
| } |
| int __attribute__((noinline,noclone)) |
| foo (__INTPTR_TYPE__ addr) |
| { |
| int i; |
| /* q points to ANYTHING */ |
| int **q = (int **)addr; |
| /* this store needs to cause i to escape */ |
| *q = &i; |
| i = 0; |
| /* and thus be clobbered by this function call */ |
| bar (); |
| return i; |
| } |
| extern void abort (void); |
| int |
| main() |
| { |
| if (foo ((__INTPTR_TYPE__)&p) != 1) |
| abort (); |
| return 0; |
| } |
| |
| /* { dg-final { scan-tree-dump "ESCAPED = {\[^\n\}\]* i \[^\n\}\]*}" "alias" } } */ |
