derek.holloway
7502bf64a4
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266 lines
14 KiB
C++
266 lines
14 KiB
C++
// RUN: %clang_cc1 -std=c++17 -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 --input-file=%t-before.cir %s --check-prefixes=CIR-BEFORE
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// RUN: FileCheck --input-file=%t.cir %s --check-prefix=CIR
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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --input-file=%t-cir.ll %s --check-prefixes=LLVM,LLVMCIR
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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s --check-prefixes=LLVM,OGCG
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// Exercises lifetime-extended reference temporaries with non-trivial
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// destructors where the extending declaration has static or thread storage
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// duration, for both non-array and array temporary types.
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struct NonTrivial {
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NonTrivial();
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~NonTrivial();
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int x;
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};
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const NonTrivial &static_ref = NonTrivial();
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thread_local const NonTrivial &thread_ref = NonTrivial();
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typedef NonTrivial NonTrivialArr[2];
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const NonTrivialArr &static_arr_ref = NonTrivialArr{};
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thread_local const NonTrivialArr &thread_arr_ref = NonTrivialArr{};
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// CIR-BEFORE: cir.global external @static_ref = ctor : !cir.ptr<!rec_NonTrivial> {
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// CIR-BEFORE: %[[STATIC_REF:.*]] = cir.get_global @static_ref
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// CIR-BEFORE: %[[REF_TEMP:.*]] = cir.get_global @_ZGR10static_ref_
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// CIR-BEFORE: cir.call @_ZN10NonTrivialC1Ev(%[[REF_TEMP]])
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// CIR-BEFORE: cir.store{{.*}} %[[REF_TEMP]], %[[STATIC_REF]]
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// CIR-BEFORE: } dtor {
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// CIR-BEFORE: %[[REF_TEMP_DTOR:.*]] = cir.get_global @_ZGR10static_ref_
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// CIR-BEFORE: cir.call @_ZN10NonTrivialD1Ev(%[[REF_TEMP_DTOR]])
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// CIR-BEFORE: }
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// CIR-BEFORE: cir.global "private" internal @_ZGR10static_ref_ = #cir.zero : !rec_NonTrivial
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// CIR: cir.global external @static_ref = #cir.ptr<null> : !cir.ptr<!rec_NonTrivial>
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// CIR: cir.func internal private @__cxx_global_var_init()
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// CIR: cir.get_global @static_ref
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// CIR: cir.get_global @_ZGR10static_ref_
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// CIR: cir.call @_ZN10NonTrivialC1Ev
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// CIR: cir.store
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// CIR: cir.get_global @_ZGR10static_ref_
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// CIR: cir.get_global @_ZN10NonTrivialD1Ev
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// CIR: cir.get_global @__dso_handle
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// CIR: cir.call @__cxa_atexit
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// CIR: cir.global "private" internal @_ZGR10static_ref_ = #cir.zero : !rec_NonTrivial
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// CIR-BEFORE: cir.global external tls_dyn dyn_tls_refs = <"_ZTW10thread_ref", "_ZTH10thread_ref"> @thread_ref = ctor : !cir.ptr<!rec_NonTrivial> {
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// CIR-BEFORE: %[[THREAD_REF:.*]] = cir.get_global thread_local @thread_ref
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// CIR-BEFORE: %[[REF_TEMP:.*]] = cir.get_global @_ZGR10thread_ref_
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// CIR-BEFORE: cir.call @_ZN10NonTrivialC1Ev(%[[REF_TEMP]])
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// CIR-BEFORE: cir.store{{.*}} %[[REF_TEMP]], %[[THREAD_REF]]
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// CIR-BEFORE: } dtor {
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// CIR-BEFORE: %[[REF_TEMP_DTOR:.*]] = cir.get_global @_ZGR10thread_ref_
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// CIR-BEFORE: cir.call @_ZN10NonTrivialD1Ev(%[[REF_TEMP_DTOR]])
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// CIR-BEFORE: }
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// CIR-BEFORE: cir.global "private" internal tls_dyn @_ZGR10thread_ref_ = #cir.zero : !rec_NonTrivial
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// CIR: cir.global external tls_dyn dyn_tls_refs = <"_ZTW10thread_ref", "_ZTH10thread_ref"> @thread_ref = #cir.ptr<null> : !cir.ptr<!rec_NonTrivial>
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// CIR: cir.func internal private @__cxx_global_var_init.1()
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// CIR: cir.get_global thread_local @thread_ref
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// CIR: cir.get_global @_ZGR10thread_ref_
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// CIR: cir.call @_ZN10NonTrivialC1Ev
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// CIR: cir.store
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// CIR: cir.get_global @_ZGR10thread_ref_
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// CIR: cir.get_global @_ZN10NonTrivialD1Ev
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// CIR: cir.get_global @__dso_handle
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// CIR: cir.call @__cxa_thread_atexit
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// CIR: cir.global "private" internal tls_dyn @_ZGR10thread_ref_ = #cir.zero : !rec_NonTrivial
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// CIR-BEFORE: cir.global external @static_arr_ref = ctor : !cir.ptr<!cir.array<!rec_NonTrivial x 2>> {
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// CIR-BEFORE: %[[ARRAY_INIT_TEMP:.*]] = cir.alloca {{.*}}"arrayinit.temp"
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// CIR-BEFORE: %[[STATIC_ARR_REF:.*]] = cir.get_global @static_arr_ref
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// CIR-BEFORE: %[[STATIC_ARR_REF_TEMP:.*]] = cir.get_global @_ZGR14static_arr_ref_
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// CIR-BEFORE: %[[DECAY:.*]] = cir.cast array_to_ptrdecay %[[STATIC_ARR_REF_TEMP]]
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// CIR-BEFORE: cir.store{{.*}} %[[DECAY]], %[[ARRAY_INIT_TEMP]]
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// CIR-BEFORE: %[[TWO:.*]] = cir.const #cir.int<2> : !s64i
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// CIR-BEFORE: %[[NEXT:.*]] = cir.ptr_stride %[[DECAY]], %[[TWO]] : (!cir.ptr<!rec_NonTrivial>, !s64i) -> !cir.ptr<!rec_NonTrivial>
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// CIR-BEFORE: cir.do {
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// CIR-BEFORE: cir.call @_ZN10NonTrivialC1Ev
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// CIR-BEFORE: } while {
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// CIR-BEFORE: cir.condition
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// CIR-BEFORE: }
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// CIR-BEFORE: cir.store{{.*}} %[[STATIC_ARR_REF_TEMP]], %[[STATIC_ARR_REF]] : !cir.ptr<!cir.array<!rec_NonTrivial x 2>>, !cir.ptr<!cir.ptr<!cir.array<!rec_NonTrivial x 2>>>
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// CIR-BEFORE: } dtor {
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// CIR-BEFORE: %[[STATIC_ARR_REF_TEMP_DTOR:.*]] = cir.get_global @_ZGR14static_arr_ref_
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// CIR-BEFORE: cir.array.dtor %[[STATIC_ARR_REF_TEMP_DTOR]] : !cir.ptr<!cir.array<!rec_NonTrivial x 2>> {
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// CIR-BEFORE: ^bb0(%[[ELEMENT:.*]]: !cir.ptr<!rec_NonTrivial>):
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// CIR-BEFORE: cir.call @_ZN10NonTrivialD1Ev(%[[ELEMENT]])
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// CIR-BEFORE: }
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// CIR-BEFORE: }
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// CIR-BEFORE: cir.global "private" internal @_ZGR14static_arr_ref_ = #cir.zero : !cir.array<!rec_NonTrivial x 2>
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// CIR: cir.global external @static_arr_ref = #cir.ptr<null> : !cir.ptr<!cir.array<!rec_NonTrivial x 2>>
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// CIR: cir.func internal private @__cxx_global_array_dtor(
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// CIR: cir.do {
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// CIR: cir.call @_ZN10NonTrivialD1Ev
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// CIR: } while {
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// CIR: cir.condition
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// CIR: }
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// CIR: cir.func internal private @__cxx_global_var_init.2()
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// CIR: cir.call @_ZN10NonTrivialC1Ev
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// CIR: cir.store
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// CIR: cir.get_global @__cxx_global_array_dtor
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// CIR: cir.get_global @__dso_handle
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// CIR: cir.call @__cxa_atexit
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// CIR: cir.global "private" internal @_ZGR14static_arr_ref_ = #cir.zero : !cir.array<!rec_NonTrivial x 2>
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// CIR-BEFORE: cir.global external tls_dyn dyn_tls_refs = <"_ZTW14thread_arr_ref", "_ZTH14thread_arr_ref"> @thread_arr_ref = ctor : !cir.ptr<!cir.array<!rec_NonTrivial x 2>> {
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// CIR-BEFORE: %[[ARRAY_INIT_TEMP:.*]] = cir.alloca {{.*}}"arrayinit.temp"
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// CIR-BEFORE: %[[THREAD_ARR_REF:.*]] = cir.get_global thread_local @thread_arr_ref
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// CIR-BEFORE: %[[THREAD_ARR_REF_TEMP:.*]] = cir.get_global @_ZGR14thread_arr_ref_
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// CIR-BEFORE: %[[DECAY:.*]] = cir.cast array_to_ptrdecay %[[THREAD_ARR_REF_TEMP]]
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// CIR-BEFORE: cir.store{{.*}} %[[DECAY]], %[[ARRAY_INIT_TEMP]]
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// CIR-BEFORE: %[[TWO:.*]] = cir.const #cir.int<2> : !s64i
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// CIR-BEFORE: %[[NEXT:.*]] = cir.ptr_stride %[[DECAY]], %[[TWO]] : (!cir.ptr<!rec_NonTrivial>, !s64i) -> !cir.ptr<!rec_NonTrivial>
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// CIR-BEFORE: cir.do {
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// CIR-BEFORE: cir.call @_ZN10NonTrivialC1Ev
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// CIR-BEFORE: } while {
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// CIR-BEFORE: cir.condition
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// CIR-BEFORE: }
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// CIR-BEFORE: cir.store{{.*}} %[[THREAD_ARR_REF_TEMP]], %[[THREAD_ARR_REF]] : !cir.ptr<!cir.array<!rec_NonTrivial x 2>>, !cir.ptr<!cir.ptr<!cir.array<!rec_NonTrivial x 2>>>
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// CIR-BEFORE: } dtor {
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// CIR-BEFORE: %[[THREAD_ARR_REF_TEMP_DTOR:.*]] = cir.get_global @_ZGR14thread_arr_ref_
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// CIR-BEFORE: cir.array.dtor %[[THREAD_ARR_REF_TEMP_DTOR]] : !cir.ptr<!cir.array<!rec_NonTrivial x 2>> {
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// CIR-BEFORE: ^bb0(%[[ELEMENT:.*]]: !cir.ptr<!rec_NonTrivial>):
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// CIR-BEFORE: cir.call @_ZN10NonTrivialD1Ev(%[[ELEMENT]])
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// CIR-BEFORE: }
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// CIR-BEFORE: }
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// CIR-BEFORE: cir.global "private" internal tls_dyn @_ZGR14thread_arr_ref_ = #cir.zero : !cir.array<!rec_NonTrivial x 2>
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// CIR: cir.global external tls_dyn dyn_tls_refs = <"_ZTW14thread_arr_ref", "_ZTH14thread_arr_ref"> @thread_arr_ref = #cir.ptr<null> : !cir.ptr<!cir.array<!rec_NonTrivial x 2>>
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// CIR: cir.func internal private @__cxx_global_array_dtor.1(
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// CIR: cir.do {
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// CIR: cir.call @_ZN10NonTrivialD1Ev
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// CIR: } while {
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// CIR: cir.condition
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// CIR: }
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// CIR: cir.func internal private @__cxx_global_var_init.3()
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// CIR: cir.call @_ZN10NonTrivialC1Ev
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// CIR: cir.store
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// CIR: cir.get_global @__cxx_global_array_dtor.1
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// CIR: cir.get_global @__dso_handle
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// CIR: cir.call @__cxa_thread_atexit
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// CIR: cir.global "private" internal tls_dyn @_ZGR14thread_arr_ref_ = #cir.zero : !cir.array<!rec_NonTrivial x 2>
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// LLVM-DAG: @static_ref = global ptr null
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// LLVM-DAG: @_ZGR10static_ref_ = internal global %struct.NonTrivial zeroinitializer
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// LLVM-DAG: @thread_ref = thread_local global ptr null
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// LLVM-DAG: @_ZGR10thread_ref_ = internal thread_local global %struct.NonTrivial zeroinitializer
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// LLVM-DAG: @static_arr_ref = global ptr null
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// LLVM-DAG: @_ZGR14static_arr_ref_ = internal global [2 x %struct.NonTrivial] zeroinitializer
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// LLVM-DAG: @thread_arr_ref = thread_local global ptr null
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// LLVM-DAG: @_ZGR14thread_arr_ref_ = internal thread_local global [2 x %struct.NonTrivial] zeroinitializer
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// Static, non-array.
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// LLVM-LABEL: define internal void @__cxx_global_var_init()
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// LLVM: call void @_ZN10NonTrivialC1Ev(ptr {{.*}} @_ZGR10static_ref_)
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// LLVMCIR: store ptr @_ZGR10static_ref_, ptr @static_ref
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// LLVMCIR: call void @__cxa_atexit(ptr @_ZN10NonTrivialD1Ev, ptr @_ZGR10static_ref_, ptr @__dso_handle)
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// OGCG: call i32 @__cxa_atexit(ptr @_ZN10NonTrivialD1Ev, ptr @_ZGR10static_ref_, ptr @__dso_handle)
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// OGCG: store ptr @_ZGR10static_ref_, ptr @static_ref
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// Thread, non-array.
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// LLVMCIR-LABEL: define internal void @__cxx_global_var_init.1()
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// LLVMCIR: %[[TLS_ADDR:.*]] = call {{.*}}ptr @llvm.threadlocal.address.p0(ptr {{.*}}@thread_ref)
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// LLVMCIR: call void @_ZN10NonTrivialC1Ev(ptr {{.*}} @_ZGR10thread_ref_)
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// LLVMCIR: store ptr @_ZGR10thread_ref_, ptr %[[TLS_ADDR]]
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// LLVMCIR: call void @__cxa_thread_atexit(ptr @_ZN10NonTrivialD1Ev, ptr @_ZGR10thread_ref_, ptr @__dso_handle)
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// OGCG-LABEL: define internal void @__cxx_global_var_init.1()
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// OGCG: call void @_ZN10NonTrivialC1Ev(ptr {{.*}} @_ZGR10thread_ref_)
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// OGCG: call i32 @__cxa_thread_atexit(ptr @_ZN10NonTrivialD1Ev, ptr @_ZGR10thread_ref_, ptr @__dso_handle)
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// OGCG: %[[TLS_ADDR:.*]] = call {{.*}}ptr @llvm.threadlocal.address.p0(ptr {{.*}}@thread_ref)
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// OGCG: store ptr @_ZGR10thread_ref_, ptr %[[TLS_ADDR]]
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// Static, array.
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// LLVMCIR-LABEL: define internal void @__cxx_global_array_dtor(ptr {{.*}})
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// LLVMCIR: [[LOOP_CONDITION_BLOCK:.*]]:
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// LLVMCIR: %[[DONE:.*]] = icmp ne ptr
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// LLVMCIR: br i1 %[[DONE]], label %[[LOOP_BODY_BLOCK:.*]], label %[[LOOP_EXIT_BLOCK:.*]]
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// LLVMCIR: [[LOOP_BODY_BLOCK]]:
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// LLVMCIR: call void @_ZN10NonTrivialD1Ev(ptr
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// LLVMCIR: br label %[[LOOP_CONDITION_BLOCK]]
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// LLVMCIR: [[LOOP_EXIT_BLOCK]]:
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// LLVMCIR-LABEL: define internal void @__cxx_global_var_init.2()
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// LLVMCIR: [[LOOP_CONDITION_BLOCK:.*]]:
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// LLVMCIR: %[[DONE:.*]] = icmp ne ptr
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// LLVMCIR: br i1 %[[DONE]], label %[[LOOP_BODY_BLOCK:.*]], label %[[LOOP_EXIT_BLOCK:.*]]
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// LLVMCIR: [[LOOP_BODY_BLOCK]]:
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// LLVMCIR: call void @_ZN10NonTrivialC1Ev
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// LLVMCIR: br label %[[LOOP_CONDITION_BLOCK]]
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// LLVMCIR: [[LOOP_EXIT_BLOCK]]:
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// LLVMCIR: store ptr @_ZGR14static_arr_ref_, ptr @static_arr_ref
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// LLVMCIR: call void @__cxa_atexit(ptr @__cxx_global_array_dtor, ptr @_ZGR14static_arr_ref_, ptr @__dso_handle)
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// OGCG-LABEL: define internal void @__cxx_global_var_init.2()
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// OGCG: [[ENTRY:.*]]:
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// OGCG: br label %[[LOOP_BODY_BLOCK:.*]]
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// OGCG: [[LOOP_BODY_BLOCK]]:
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// OGCG: call void @_ZN10NonTrivialC1Ev
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// OGCG: %[[DONE:.*]] = icmp eq ptr
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// OGCG: br i1 %[[DONE]], label %[[LOOP_EXIT_BLOCK:.*]], label %[[LOOP_BODY_BLOCK]]
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// OGCG: [[LOOP_EXIT_BLOCK]]:
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// OGCG: call i32 @__cxa_atexit(ptr @__cxx_global_array_dtor, ptr null, ptr @__dso_handle)
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// OGCG: store ptr @_ZGR14static_arr_ref_, ptr @static_arr_ref
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// OGCG-LABEL: define internal void @__cxx_global_array_dtor(ptr {{.*}})
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// OGCG: [[ENTRY:.*]]:
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// OGCG: br label %[[LOOP_BODY_BLOCK:.*]]
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// OGCG: [[LOOP_BODY_BLOCK:.*]]:
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// OGCG: call void @_ZN10NonTrivialD1Ev(ptr
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// OGCG: %[[DONE:.*]] = icmp eq ptr
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// OGCG: br i1 %[[DONE]], label %[[LOOP_EXIT_BLOCK:.*]], label %[[LOOP_BODY_BLOCK]]
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// OGCG: [[LOOP_EXIT_BLOCK]]:
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// Thread, array.
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// LLVMCIR-LABEL: define internal void @__cxx_global_array_dtor.1(ptr {{.*}})
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// LLVMCIR: [[LOOP_CONDITION_BLOCK:.*]]:
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// LLVMCIR: %[[DONE:.*]] = icmp ne ptr
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// LLVMCIR: br i1 %[[DONE]], label %[[LOOP_BODY_BLOCK:.*]], label %[[LOOP_EXIT_BLOCK:.*]]
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// LLVMCIR: [[LOOP_BODY_BLOCK]]:
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// LLVMCIR: call void @_ZN10NonTrivialD1Ev(ptr
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// LLVMCIR: br label %[[LOOP_CONDITION_BLOCK]]
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// LLVMCIR: [[LOOP_EXIT_BLOCK]]:
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// LLVMCIR-LABEL: define internal void @__cxx_global_var_init.3()
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// LLVMCIR: %[[THREAD_ARR_REF:.*]] = call ptr @_ZTW14thread_arr_ref()
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// LLVMCIR: [[LOOP_CONDITION_BLOCK:.*]]:
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// LLVMCIR: %[[DONE:.*]] = icmp ne ptr
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// LLVMCIR: br i1 %[[DONE]], label %[[LOOP_BODY_BLOCK:.*]], label %[[LOOP_EXIT_BLOCK:.*]]
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// LLVMCIR: [[LOOP_BODY_BLOCK]]:
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// LLVMCIR: call void @_ZN10NonTrivialC1Ev
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// LLVMCIR: br label %[[LOOP_CONDITION_BLOCK]]
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// LLVMCIR: [[LOOP_EXIT_BLOCK]]:
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// LLVMCIR: store ptr @_ZGR14thread_arr_ref_, ptr %[[THREAD_ARR_REF]]
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// LLVMCIR: call void @__cxa_thread_atexit(ptr @__cxx_global_array_dtor.1, ptr @_ZGR14thread_arr_ref_, ptr @__dso_handle)
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// OGCG-LABEL: define internal void @__cxx_global_var_init.3()
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// OGCG: [[ENTRY:.*]]:
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// OGCG: br label %[[LOOP_BODY_BLOCK:.*]]
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// OGCG: [[LOOP_BODY_BLOCK]]:
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// OGCG: call void @_ZN10NonTrivialC1Ev
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// OGCG: %[[DONE:.*]] = icmp eq ptr
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// OGCG: br i1 %[[DONE]], label %[[LOOP_EXIT_BLOCK:.*]], label %[[LOOP_BODY_BLOCK]]
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// OGCG: [[LOOP_EXIT_BLOCK]]:
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// OGCG: call i32 @__cxa_thread_atexit(ptr @__cxx_global_array_dtor.4, ptr null, ptr @__dso_handle)
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// OGCG: %[[THREAD_ARR_ADDR:.*]] = call {{.*}}ptr @llvm.threadlocal.address.p0(ptr {{.*}}@thread_arr_ref)
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// OGCG: store ptr @_ZGR14thread_arr_ref_, ptr %[[THREAD_ARR_ADDR]]
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// OGCG-LABEL: define internal void @__cxx_global_array_dtor.4(ptr {{.*}})
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// OGCG: [[ENTRY:.*]]:
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// OGCG: br label %[[LOOP_BODY_BLOCK:.*]]
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// OGCG: [[LOOP_BODY_BLOCK:.*]]:
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// OGCG: call void @_ZN10NonTrivialD1Ev(ptr
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// OGCG: %[[DONE:.*]] = icmp eq ptr
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// OGCG: br i1 %[[DONE]], label %[[LOOP_EXIT_BLOCK:.*]], label %[[LOOP_BODY_BLOCK]]
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// OGCG: [[LOOP_EXIT_BLOCK]]:
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