================ @@ -0,0 +1,69 @@ +// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 4 +// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s + + +typedef struct { struct {} a; } empty; + +// CHECK-LABEL: define dso_local void @empty_record_test( +// CHECK-SAME: i32 noundef [[Z:%.*]], ...) #[[ATTR0:[0-9]+]] { +// CHECK-NEXT: entry: +// CHECK-NEXT: [[RETVAL:%.*]] = alloca [[STRUCT_EMPTY:%.*]], align 1 +// CHECK-NEXT: [[Z_ADDR:%.*]] = alloca i32, align 4 +// CHECK-NEXT: [[LIST:%.*]] = alloca [1 x %struct.__va_list_tag], align 16 +// CHECK-NEXT: [[TMP:%.*]] = alloca [[STRUCT_EMPTY]], align 1 +// CHECK-NEXT: store i32 [[Z]], ptr [[Z_ADDR]], align 4 +// CHECK-NEXT: [[ARRAYDECAY:%.*]] = getelementptr inbounds [1 x %struct.__va_list_tag], ptr [[LIST]], i64 0, i64 0 +// CHECK-NEXT: call void @llvm.va_start(ptr [[ARRAYDECAY]]) +// CHECK-NEXT: [[ARRAYDECAY1:%.*]] = getelementptr inbounds [1 x %struct.__va_list_tag], ptr [[LIST]], i64 0, i64 0 +// CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[RETVAL]], ptr align 1 [[TMP]], i64 0, i1 false) +// CHECK-NEXT: ret void +// +empty empty_record_test(int z, ...) { + __builtin_va_list list; + __builtin_va_start(list, z); + return __builtin_va_arg(list, empty); +} + +typedef struct { + struct{} a; + double b; +} s1; ---------------- efriedma-quic wrote:
Not sure this is really worth testing... at least, it's not testing anything relevant to this patch. (sizeof(s1)==8.) Up to you, I guess. https://github.com/llvm/llvm-project/pull/86377 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits