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49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -fcxx-exceptions -fexceptions -emit-cir %s -o %t.cir
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// RUN: FileCheck --input-file=%t.cir %s --check-prefix=CIR
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -fcxx-exceptions -fexceptions -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --input-file=%t-cir.ll %s --check-prefix=LLVM
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struct Base {};
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struct Derived : Base {
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~Derived();
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};
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Derived make_derived();
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void bind_base_ref_to_derived_temp() {
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const Base &r = make_derived();
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}
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// CIR-LABEL: cir.func {{.*}}@_Z29bind_base_ref_to_derived_tempv
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// CIR: %[[REF_TMP:.*]] = cir.alloca !rec_Derived, !cir.ptr<!rec_Derived>, ["ref.tmp0"]
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// CIR: %[[R:.*]] = cir.alloca !cir.ptr<!rec_Base>, !cir.ptr<!cir.ptr<!rec_Base>>, ["r", init, const]
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// CIR: %[[SPILL:.*]] = cir.alloca !cir.ptr<!rec_Base>, !cir.ptr<!cir.ptr<!rec_Base>>, ["tmp.exprcleanup"]
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// CIR: cir.call @_Z12make_derivedv()
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// CIR: cir.cleanup.scope {
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// CIR: %[[BASE:.*]] = cir.base_class_addr %[[REF_TMP]] : !cir.ptr<!rec_Derived> nonnull [0] -> !cir.ptr<!rec_Base>
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// CIR: cir.store {{.*}} %[[BASE]], %[[SPILL]]
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// CIR: cir.yield
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// CIR: } cleanup eh {
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// CIR: cir.call @_ZN7DerivedD1Ev(%[[REF_TMP]])
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// CIR: cir.yield
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// CIR: }
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// CIR: cir.cleanup.scope {
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// CIR: %[[RELOAD:.*]] = cir.load {{.*}} %[[SPILL]] : !cir.ptr<!cir.ptr<!rec_Base>>, !cir.ptr<!rec_Base>
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// CIR: cir.store {{.*}} %[[RELOAD]], %[[R]]
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// CIR: cir.yield
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// CIR: } cleanup all {
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// CIR: cir.call @_ZN7DerivedD1Ev(%[[REF_TMP]])
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// CIR: cir.yield
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// CIR: }
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// CIR: cir.return
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// LLVM-LABEL: define {{.*}}@_Z29bind_base_ref_to_derived_tempv()
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// LLVM: %[[REF_TMP:.*]] = alloca %struct.Derived
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// LLVM: %[[R:.*]] = alloca ptr
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// LLVM: %[[SPILL:.*]] = alloca ptr
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// LLVM: store ptr %[[REF_TMP]], ptr %[[SPILL]]
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// LLVM: %[[RELOAD:.*]] = load ptr, ptr %[[SPILL]]
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// LLVM: store ptr %[[RELOAD]], ptr %[[R]]
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// LLVM: call void @_ZN7DerivedD1Ev(ptr {{.*}} %[[REF_TMP]])
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// LLVM: ret void
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