| //@ compile-flags: -Z patchable-function-entry=15 |
| |
| #![feature(patchable_function_entry)] |
| #![crate_type = "lib"] |
| |
| // This should have the default, as set by the compile flags |
| #[no_mangle] |
| pub fn fun0() {} |
| |
| // The attribute should override the compile flags |
| #[no_mangle] |
| #[patchable_function_entry(prefix_nops = 1, entry_nops = 2)] |
| pub fn fun1() {} |
| |
| // If we override an attribute to 0 or unset, the attribute should go away |
| #[no_mangle] |
| #[patchable_function_entry(entry_nops = 0)] |
| pub fn fun2() {} |
| |
| // The attribute should override the compile flags |
| #[no_mangle] |
| #[patchable_function_entry(prefix_nops = 20, entry_nops = 1)] |
| pub fn fun3() {} |
| |
| // The attribute should override the compile flags |
| #[no_mangle] |
| #[patchable_function_entry(prefix_nops = 2, entry_nops = 19)] |
| pub fn fun4() {} |
| |
| // The attribute should override patchable-function-entry to 3 |
| // and patchable-function-prefix to the default of 0, clearing it entirely |
| #[no_mangle] |
| #[patchable_function_entry(entry_nops = 3)] |
| pub fn fun5() {} |
| |
| // The attribute should override patchable-function-prefix to 4 |
| // and patchable-function-entry to the default of 0, clearing it entirely |
| #[no_mangle] |
| #[patchable_function_entry(prefix_nops = 4)] |
| pub fn fun6() {} |
| |
| // CHECK: @fun0() unnamed_addr #0 |
| // CHECK: @fun1() unnamed_addr #1 |
| // CHECK: @fun2() unnamed_addr #2 |
| // CHECK: @fun3() unnamed_addr #3 |
| // CHECK: @fun4() unnamed_addr #4 |
| // CHECK: @fun5() unnamed_addr #5 |
| // CHECK: @fun6() unnamed_addr #6 |
| |
| // CHECK: attributes #0 = { {{.*}}"patchable-function-entry"="15" {{.*}} } |
| // CHECK-NOT: attributes #0 = { {{.*}}patchable-function-prefix{{.*}} } |
| |
| // CHECK: attributes #1 = { {{.*}}"patchable-function-entry"="2"{{.*}}"patchable-function-prefix"="1" {{.*}} } |
| |
| // CHECK-NOT: attributes #2 = { {{.*}}patchable-function-entry{{.*}} } |
| // CHECK-NOT: attributes #2 = { {{.*}}patchable-function-prefix{{.*}} } |
| // CHECK: attributes #2 = { {{.*}} } |
| |
| // CHECK: attributes #3 = { {{.*}}"patchable-function-entry"="1"{{.*}}"patchable-function-prefix"="20" {{.*}} } |
| // CHECK: attributes #4 = { {{.*}}"patchable-function-entry"="19"{{.*}}"patchable-function-prefix"="2" {{.*}} } |
| |
| // CHECK: attributes #5 = { {{.*}}"patchable-function-entry"="3"{{.*}} } |
| // CHECK-NOT: attributes #5 = { {{.*}}patchable-function-prefix{{.*}} } |
| |
| // CHECK: attributes #6 = { {{.*}}"patchable-function-prefix"="4"{{.*}} } |
| // CHECK-NOT: attributes #6 = { {{.*}}patchable-function-entry{{.*}} } |
