| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir |
| // RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll |
| // RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll |
| // RUN: FileCheck --check-prefix=LLVM --input-file=%t.ll %s |
| |
| struct SSO { |
| char *p; |
| unsigned long len; |
| union { |
| char local[16]; |
| unsigned long capacity; |
| }; |
| }; |
| |
| // Inner union's tail padding must not bleed into the outer record. |
| // CIR: !rec_anon{{.*}} = !cir.record<union "anon{{.*}}" padded {!cir.array<!s8i x 16>, !u64i, !cir.array<!u8i x 8>}> |
| // CIR: !rec_SSO = !cir.record<struct "SSO" {!cir.ptr<!s8i>, !u64i, !rec_anon{{.*}}}> |
| |
| // LLVM: %struct.SSO = type { ptr, i64, %union.anon{{.*}} } |
| // LLVM: %union.anon{{.*}} = type { i64, [8 x i8] } |
| |
| extern "C" SSO *last_of_three() { |
| SSO *p = new SSO[3]; |
| return &p[2]; |
| } |
| |
| // Allocation is 3*sizeof(SSO)=96; per-element stride comes from struct size. |
| // LLVM-LABEL: define {{.*}}@last_of_three |
| // LLVM: call {{.*}}@_Znam(i64 noundef 96) |
| // LLVM: getelementptr{{.*}}%struct.SSO, ptr %{{.+}}, i64 2 |
