| //@ 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{{.*}} } |