| // RUN: %target-swift-frontend -emit-ir -primary-file %s | %FileCheck %s |
| |
| protocol P {} |
| class A : P {} |
| |
| sil_vtable A {} |
| |
| // <rdar://25695389> |
| // Ensure that an "abstract" conformance that minimization |
| // resolves as concrete doesn't mess up IRGen. Note that this test case |
| // is only meaningful if type-checking actually resolves the conformance |
| // as abstract, which it does today for both Swift and SIL inputs. |
| // If it stops doing that, we can drop the special case in IRGen. |
| sil @foo : $@convention(thin) <T where T : A, T : P> (@guaranteed T) -> () { |
| bb0(%0 : $T): |
| %1 = alloc_stack $P |
| %2 = init_existential_addr %1 : $*P, $T |
| strong_retain %0 : $T |
| store %0 to %2 : $*T |
| destroy_addr %1 : $*P |
| dealloc_stack %1 : $*P |
| %3 = tuple () |
| return %3 : $() |
| } |
| // CHECK: define {{.*}}void @foo(%T16class_constraint1AC*, %swift.type* %T) |
| // CHECK: store i8** @"$s16class_constraint1ACAA1PAAWP", |
