[clang] [CIR] CompoundLiteralExpr for Aggregate types (PR #164172)

[Amr Hesham via cfe-commits]

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@@ -280,3 +280,22 @@ void bin_comma() {
 // OGCG: define{{.*}} void @_Z9bin_commav()
 // OGCG:   %[[A_ADDR:.*]] = alloca %struct.CompleteS, align 4
 // OGCG:   call void @llvm.memset.p0.i64(ptr align 4 %[[A_ADDR]], i8 0, i64 8, i1 false)
+
+void compound_literal_expr() { CompleteS a = (CompleteS){}; }
+
+// CIR: %[[A_ADDR:.*]] = cir.alloca !rec_CompleteS, !cir.ptr<!rec_CompleteS>, ["a", init]
+// CIR: %[[A_ELEM_0_PTR:.*]] = cir.get_member %[[A_ADDR]][0] {name = "a"} : !cir.ptr<!rec_CompleteS> -> !cir.ptr<!s32i>
+// CIR: %[[CONST_0:.*]] = cir.const #cir.int<0> : !s32i
+// CIR: cir.store{{.*}} %[[CONST_0]], %[[A_ELEM_0_PTR]] : !s32i, !cir.ptr<!s32i>
+// CIR: %[[A_ELEM_1_PTR:.*]] = cir.get_member %[[A_ADDR]][1] {name = "b"} : !cir.ptr<!rec_CompleteS> -> !cir.ptr<!s8i>
+// CIR: %[[CONST_0:.*]] = cir.const #cir.int<0> : !s8i
+// CIR: cir.store{{.*}} %[[CONST_0]], %[[A_ELEM_1_PTR]] : !s8i, !cir.ptr<!s8i>
+
+// LLVM: %[[A_ADDR:.*]] = alloca %struct.CompleteS, i64 1, align 4
+// LLVM: %[[A_ELEM_0_PTR:.*]] = getelementptr %struct.CompleteS, ptr %[[A_ADDR]], i32 0, i32 0
+// LLVM: store i32 0, ptr %[[A_ELEM_0_PTR]], align 4
+// LLVM: %[[A_ELEM_1_PTR:.*]] = getelementptr %struct.CompleteS, ptr %[[A_ADDR]], i32 0, i32 1
+// LLVM: store i8 0, ptr %[[A_ELEM_1_PTR]], align 4
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AmrDeveloper wrote:

I added a TODO for now, and later we can revisit it

https://github.com/llvm/llvm-project/pull/164172