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TheRock/compiler/amd-llvm/clang/test/CIR/CodeGen/vtable-emission.cpp
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derek.holloway 7502bf64a4
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39 lines
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-rtti -fclangir -emit-cir %s -o %t.cir
// RUN: FileCheck --input-file=%t.cir %s
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-rtti -fclangir -emit-llvm -o %t-cir.ll %s
// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fno-rtti -emit-llvm -o %t.ll %s
// RUN: FileCheck --check-prefix=OGCG --input-file=%t.ll %s
// Note: This test is using -fno-rtti so that we can delay implemntation of that handling.
// When rtti handling for vtables is implemented, that option should be removed.
struct S {
virtual void key();
virtual void nonKey() {}
};
void S::key() {}
// CHECK-DAG: !rec_anon_struct = !cir.struct<{!cir.array<!cir.ptr<!u8i> x 4>}>
// The definition of the key function should result in the vtable being emitted.
// CHECK: cir.global "private" external @_ZTV1S = #cir.vtable<{
// CHECK-SAME: #cir.const_array<[
// CHECK-SAME: #cir.ptr<null> : !cir.ptr<!u8i>,
// CHECK-SAME: #cir.ptr<null> : !cir.ptr<!u8i>,
// CHECK-SAME: #cir.global_view<@_ZN1S3keyEv> : !cir.ptr<!u8i>,
// CHECK-SAME: #cir.global_view<@_ZN1S6nonKeyEv> : !cir.ptr<!u8i>]>
// CHECK-SAME: : !cir.array<!cir.ptr<!u8i> x 4>}> : !rec_anon_struct
// LLVM: @_ZTV1S = global { [4 x ptr] } { [4 x ptr]
// LLVM-SAME: [ptr null, ptr null, ptr @_ZN1S3keyEv, ptr @_ZN1S6nonKeyEv] }
// OGCG: @_ZTV1S = constant { [4 x ptr] } { [4 x ptr]
// OGCG-SAME: [ptr null, ptr null, ptr @_ZN1S3keyEv, ptr @_ZN1S6nonKeyEv] }
// CHECK: cir.func {{.*}} @_ZN1S3keyEv
// The reference from the vtable should result in nonKey being emitted.
// CHECK: cir.func no_inline comdat linkonce_odr @_ZN1S6nonKeyEv