| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir |
| // RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll |
| // RUN: FileCheck --input-file=%t-cir.ll %s -check-prefix=LLVM |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll |
| // RUN: FileCheck --input-file=%t.ll %s -check-prefix=LLVM |
| |
| // This is UB, but Clang allows it and it is used in one of the |
| // llvm-test-suite MultiSource tests. |
| |
| struct S { |
| int a; |
| int b; |
| int c; |
| }; |
| |
| void test_self_initialize() { |
| struct S s = s; |
| } |
| |
| // CIR: cir.func{{.*}} @test_self_initialize() |
| // %[[S:.*]] = cir.alloca "s" {{.*}} init : !cir.ptr<!rec_S> |
| // cir.copy %[[S]] to %[[S]] : !cir.ptr<!rec_S> |
| |
| // LLVM: define{{.*}} void @test_self_initialize() |
| // LLVM: %[[S:.*]] = alloca %struct.S |
| // LLVM: call void @llvm.memcpy.p0.p0.i64(ptr{{.*}} %[[S]], ptr{{.*}} %[[S]], i64 12, i1 false) |
