================
@@ -0,0 +1,39 @@
+// 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=OGCG --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] }
+
+// OGCG: %struct.SSO = type { ptr, i64, %union.anon }
----------------
adams381 wrote:
Merged the LLVM and OGCG checks into one LLVM: block; both %t-cir.ll and %t.ll
use --check-prefix=LLVM.
https://github.com/llvm/llvm-project/pull/198361
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