derek.holloway
7502bf64a4
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169 lines
10 KiB
C++
169 lines
10 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir -mmlir --mlir-print-ir-before=cir-lowering-prepare %s -o %t.cir 2> %t-before.cir
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// RUN: FileCheck %s --input-file=%t-before.cir --check-prefixes=CIR,CIR-BEFORE
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// RUN: FileCheck %s --input-file=%t.cir --check-prefixes=CIR,CIR-AFTER
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o - | FileCheck %s --check-prefixes=LLVM
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefixes=LLVM
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struct DefCtor{};
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struct WithCtor{
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WithCtor();
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WithCtor(int);
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};
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struct WithCtorDtor{
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WithCtorDtor();
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WithCtorDtor(int);
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~WithCtorDtor();
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};
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int globalInt;
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// CIR: cir.global external @globalInt = #cir.int<0> : !s32i {alignment = 4 : i64}
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// LLVM: @globalInt = global i32 0, align 4
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int &globalIntRef = globalInt;
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// CIR: cir.global constant external @globalIntRef = #cir.global_view<@globalInt> : !cir.ptr<!s32i> {alignment = 8 : i64}
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// LLVM: @globalIntRef = constant ptr @globalInt, align 8
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const int &constGlobalIntRef = 5;
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// CIR: cir.global "private" constant internal @_ZGR17constGlobalIntRef_ = #cir.int<5> : !s32i {alignment = 4 : i64}
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// CIR: cir.global constant external @constGlobalIntRef = #cir.global_view<@_ZGR17constGlobalIntRef_> : !cir.ptr<!s32i> {alignment = 8 : i64}
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// LLVM: @_ZGR17constGlobalIntRef_ = {{.*}}constant i32 5, align 4
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// LLVM: @constGlobalIntRef = constant ptr @_ZGR17constGlobalIntRef_, align 8
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DefCtor defCtor{};
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// CIR: cir.global external @defCtor = #cir.undef : !rec_DefCtor {alignment = 1 : i64}
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// LLVM: @defCtor = global %struct.DefCtor undef, align 1
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DefCtor &defCtorRef = defCtor;
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// CIR: cir.global constant external @defCtorRef = #cir.global_view<@defCtor> : !cir.ptr<!rec_DefCtor> {alignment = 8 : i64}
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// LLVM: @defCtorRef = constant ptr @defCtor, align 8
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const DefCtor &constDefCtorRef{};
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// CIR: cir.global "private" constant internal @_ZGR15constDefCtorRef_ = #cir.undef : !rec_DefCtor {alignment = 1 : i64}
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// CIR: cir.global constant external @constDefCtorRef = #cir.global_view<@_ZGR15constDefCtorRef_> : !cir.ptr<!rec_DefCtor> {alignment = 8 : i64}
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// LLVM: @_ZGR15constDefCtorRef_ = {{.*}}constant %struct.DefCtor undef, align 1
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// LLVM: @constDefCtorRef = constant ptr @_ZGR15constDefCtorRef_, align 8
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WithCtor withCtor{};
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// CIR-BEFORE: cir.global external @withCtor = ctor : !rec_WithCtor {
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// CIR-BEFORE-NEXT: %[[GET_GLOB:.*]] = cir.get_global @withCtor : !cir.ptr<!rec_WithCtor>
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// CIR-BEFORE-NEXT: cir.call @_ZN8WithCtorC1Ev(%[[GET_GLOB]]) : (!cir.ptr<!rec_WithCtor>{{.*}}) -> ()
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// CIR-BEFORE-NEXT: } {alignment = 1 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER: cir.global external @withCtor = #cir.zero : !rec_WithCtor {alignment = 1 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER-NEXT: cir.func internal private @__cxx_global_var_init{{.*}}() {
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// CIR-AFTER-NEXT: %[[GET_GLOB:.*]] = cir.get_global @withCtor : !cir.ptr<!rec_WithCtor>
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// CIR-AFTER-NEXT: cir.call @_ZN8WithCtorC1Ev(%[[GET_GLOB]]) : (!cir.ptr<!rec_WithCtor>{{.*}}) -> ()
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// CIR-AFTER-NEXT: cir.return
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// CIR-AFTER-NEXT: }
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// LLVM: @withCtor = global %struct.WithCtor zeroinitializer, align 1
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WithCtor &withCtorRef = withCtor;
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// CIR: cir.global constant external @withCtorRef = #cir.global_view<@withCtor> : !cir.ptr<!rec_WithCtor> {alignment = 8 : i64}
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// LLVM: @withCtorRef = constant ptr @withCtor, align 8
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const WithCtor &constWithCtorRef{};
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// CIR-BEFORE: cir.global external @constWithCtorRef = ctor : !cir.ptr<!rec_WithCtor> {
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// CIR-BEFORE-NEXT: %[[GET_GLOB:.*]] = cir.get_global @constWithCtorRef : !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-BEFORE-NEXT: %[[GET_GLOB_OBJ:.*]] = cir.get_global @_ZGR16constWithCtorRef_ : !cir.ptr<!rec_WithCtor>
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// CIR-BEFORE-NEXT: cir.call @_ZN8WithCtorC1Ev(%[[GET_GLOB_OBJ]]) : (!cir.ptr<!rec_WithCtor>{{.*}}) -> ()
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// CIR-BEFORE-NEXT: cir.store align(8) %[[GET_GLOB_OBJ]], %[[GET_GLOB]] : !cir.ptr<!rec_WithCtor>, !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-BEFORE-NEXT: } {alignment = 8 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER: cir.global external @constWithCtorRef = #cir.ptr<null> : !cir.ptr<!rec_WithCtor> {alignment = 8 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER-NEXT: cir.func internal private @__cxx_global_var_init{{.*}}() {
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// CIR-AFTER-NEXT: %[[GET_GLOB:.*]] = cir.get_global @constWithCtorRef : !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-AFTER-NEXT: %[[GET_GLOB_OBJ:.*]] = cir.get_global @_ZGR16constWithCtorRef_ : !cir.ptr<!rec_WithCtor>
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// CIR-AFTER-NEXT: cir.call @_ZN8WithCtorC1Ev(%[[GET_GLOB_OBJ]]) : (!cir.ptr<!rec_WithCtor>{{.*}}) -> ()
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// CIR-AFTER-NEXT: cir.store align(8) %[[GET_GLOB_OBJ]], %[[GET_GLOB]] : !cir.ptr<!rec_WithCtor>, !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-AFTER-NEXT: cir.return
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// CIR-AFTER-NEXT: }
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// LLVM: @constWithCtorRef = global ptr null, align 8
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const WithCtor &constWithCtorRef2{5};
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// CIR-BEFORE: cir.global external @constWithCtorRef2 = ctor : !cir.ptr<!rec_WithCtor> {
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// CIR-BEFORE-NEXT: %[[GET_GLOB:.*]] = cir.get_global @constWithCtorRef2 : !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-BEFORE-NEXT: %[[GET_GLOB_OBJ:.*]] = cir.get_global @_ZGR17constWithCtorRef2_ : !cir.ptr<!rec_WithCtor>
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// CIR-BEFORE-NEXT: %[[FIVE:.*]] = cir.const #cir.int<5> : !s32i
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// CIR-BEFORE-NEXT: cir.call @_ZN8WithCtorC1Ei(%[[GET_GLOB_OBJ]], %[[FIVE]]) : (!cir.ptr<!rec_WithCtor>{{.*}}, !s32i{{.*}}) -> ()
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// CIR-BEFORE-NEXT: cir.store align(8) %[[GET_GLOB_OBJ]], %[[GET_GLOB]] : !cir.ptr<!rec_WithCtor>, !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-BEFORE-NEXT: } {alignment = 8 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER: cir.global external @constWithCtorRef2 = #cir.ptr<null> : !cir.ptr<!rec_WithCtor> {alignment = 8 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER-NEXT: cir.func internal private @__cxx_global_var_init{{.*}}() {
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// CIR-AFTER-NEXT: %[[GET_GLOB:.*]] = cir.get_global @constWithCtorRef2 : !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-AFTER-NEXT: %[[GET_GLOB_OBJ:.*]] = cir.get_global @_ZGR17constWithCtorRef2_ : !cir.ptr<!rec_WithCtor>
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// CIR-AFTER-NEXT: %[[FIVE:.*]] = cir.const #cir.int<5> : !s32i
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// CIR-AFTER-NEXT: cir.call @_ZN8WithCtorC1Ei(%[[GET_GLOB_OBJ]], %[[FIVE]]) : (!cir.ptr<!rec_WithCtor>{{.*}}, !s32i{{.*}}) -> ()
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// CIR-AFTER-NEXT: cir.store align(8) %[[GET_GLOB_OBJ]], %[[GET_GLOB]] : !cir.ptr<!rec_WithCtor>, !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-AFTER-NEXT: cir.return
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// CIR-AFTER-NEXT: }
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// LLVM: @constWithCtorRef2 = global ptr null, align 8
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WithCtorDtor withCtorDtor{};
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// CIR-BEFORE: cir.global external @withCtorDtor = ctor : !rec_WithCtorDtor {
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// CIR-BEFORE-NEXT: %[[GET_GLOB:.*]] = cir.get_global @withCtorDtor : !cir.ptr<!rec_WithCtorDtor>
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// CIR-BEFORE-NEXT: cir.call @_ZN12WithCtorDtorC1Ev(%[[GET_GLOB]]) : (!cir.ptr<!rec_WithCtorDtor>{{.*}}) -> ()
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// CIR-BEFORE-NEXT: } dtor {
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// CIR-BEFORE-NEXT: %[[GET_GLOB:.*]] = cir.get_global @withCtorDtor : !cir.ptr<!rec_WithCtorDtor>
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// CIR-BEFORE-NEXT: cir.call @_ZN12WithCtorDtorD1Ev(%[[GET_GLOB]]) : (!cir.ptr<!rec_WithCtorDtor>{{.*}}) -> ()
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// CIR-BEFORE-NEXT: } {alignment = 1 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER: cir.global external @withCtorDtor = #cir.zero : !rec_WithCtorDtor {alignment = 1 : i64, ast = #cir.var.decl.ast}
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// CIR-AFTER: cir.func internal private @__cxx_global_var_init{{.*}}() {
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// CIR-AFTER-NEXT: %[[GET_GLOB:.*]] = cir.get_global @withCtorDtor : !cir.ptr<!rec_WithCtorDtor>
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// CIR-AFTER-NEXT: cir.call @_ZN12WithCtorDtorC1Ev(%[[GET_GLOB]]) : (!cir.ptr<!rec_WithCtorDtor>{{.*}}) -> ()
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// CIR-AFTER-NEXT: %[[GET_GLOB:.*]] = cir.get_global @withCtorDtor : !cir.ptr<!rec_WithCtorDtor>
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// CIR-AFTER-NEXT: %[[GET_DTOR:.*]] = cir.get_global @_ZN12WithCtorDtorD1Ev : !cir.ptr<!cir.func<(!cir.ptr<!rec_WithCtorDtor>)>>
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// CIR-AFTER-NEXT: %[[VOID_FN_PTR:.*]] = cir.cast bitcast %[[GET_DTOR]] : !cir.ptr<!cir.func<(!cir.ptr<!rec_WithCtorDtor>)>> -> !cir.ptr<!cir.func<(!cir.ptr<!void>)>>
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// CIR-AFTER-NEXT: %[[GLOB_TO_VOID:.*]] = cir.cast bitcast %[[GET_GLOB]] : !cir.ptr<!rec_WithCtorDtor> -> !cir.ptr<!void>
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// CIR-AFTER-NEXT: %[[DSO_HANDLE:.*]] = cir.get_global @__dso_handle : !cir.ptr<i8>
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// CIR-AFTER-NEXT: cir.call @__cxa_atexit(%[[VOID_FN_PTR]], %[[GLOB_TO_VOID]], %[[DSO_HANDLE]]) : (!cir.ptr<!cir.func<(!cir.ptr<!void>)>>, !cir.ptr<!void>, !cir.ptr<i8>{{.*}}) -> ()
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// CIR-AFTER-NEXT: cir.return
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// CIR-AFTER-NEXT: }
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// LLVM: @withCtorDtor = global %struct.WithCtorDtor zeroinitializer, align 1
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WithCtorDtor &withCtorDtorRef = withCtorDtor;
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// CIR: cir.global constant external @withCtorDtorRef = #cir.global_view<@withCtorDtor> : !cir.ptr<!rec_WithCtorDtor> {alignment = 8 : i64}
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// LLVM: @withCtorDtorRef = constant ptr @withCtorDtor, align 8
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extern WithCtor &ExternRef;
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// CIR: cir.global "private" constant external @ExternRef : !cir.ptr<!rec_WithCtor>
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// LLVM: @ExternRef = external constant ptr
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void use() {
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// CIR-LABEL: cir.func{{.*}}use
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WithCtor &local = ExternRef;
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// CIR-NEXT: %[[LOCAL:.*]] = cir.alloca !cir.ptr<!rec_WithCtor>, !cir.ptr<!cir.ptr<!rec_WithCtor>>, ["local", init, const]
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// CIR-NEXT: %[[EXT_REF:.*]] = cir.get_global @ExternRef : !cir.ptr<!cir.ptr<!rec_WithCtor>>
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// CIR-NEXT: %[[EXT_REF_LOAD:.*]] = cir.load %[[EXT_REF]] : !cir.ptr<!cir.ptr<!rec_WithCtor>>, !cir.ptr<!rec_WithCtor>
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// CIR-NEXT: cir.store{{.*}}%[[EXT_REF_LOAD]], %[[LOCAL]]
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}
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// LLVM: define internal void @__cxx_global_var_init{{.*}}()
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// LLVM: call void @_ZN8WithCtorC1Ev(ptr {{.*}}@withCtor)
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// LLVM-NEXT: ret void
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// LLVM: define internal void @__cxx_global_var_init{{.*}}()
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// LLVM: call void @_ZN8WithCtorC1Ev(ptr {{.*}}@_ZGR16constWithCtorRef_)
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// LLVM-NEXT: store ptr @_ZGR16constWithCtorRef_, ptr @constWithCtorRef, align 8
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// LLVM-NEXT: ret void
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// LLVM: define internal void @__cxx_global_var_init{{.*}}()
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// LLVM: call void @_ZN8WithCtorC1Ei(ptr {{.*}}@_ZGR17constWithCtorRef2_, i32 {{.*}}5)
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// LLVM-NEXT: store ptr @_ZGR17constWithCtorRef2_, ptr @constWithCtorRef2, align 8
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// LLVM-NEXT: ret void
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// LLVM: define internal void @__cxx_global_var_init{{.*}}()
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// LLVM: call void @_ZN12WithCtorDtorC1Ev(ptr {{.*}}@withCtorDtor)
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// LLVM-NEXT: call {{.*}}@__cxa_atexit(ptr {{.*}}@_ZN12WithCtorDtorD1Ev, ptr {{.*}}@withCtorDtor, ptr {{.*}}@__dso_handle)
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// LLVM-NEXT: ret void
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// LLVM-LABEL: define{{.*}}use
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// LLVM: %[[LOCAL:.*]] = alloca ptr
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// LLVM-NEXT: %[[EXT_REF:.*]] = load ptr, ptr @ExternRef
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// LLVM-NEXT: store ptr %[[EXT_REF]], ptr %[[LOCAL]]
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// TODO(cir): Once we get destructors for temporaries done, we should test them
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// here, same as the 'const-WithCtor' examples, except with the 'withCtorDtor'
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// versions.
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