derek.holloway
7502bf64a4
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37 lines
2.9 KiB
C++
37 lines
2.9 KiB
C++
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -fclangir -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 -std=c++17 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -fclangir -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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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
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// Test that throwing a pointer to a noexcept function produces correct RTTI
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// with the PTI_Noexcept flag (0x40 = 64) set in the __pointer_type_info.
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void f() noexcept {
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throw f;
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}
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// The pointee type _ZTIFvvE (function type info for void()) must be emitted
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// using the __function_type_info vtable.
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// CIR-DAG: cir.global {{.*}} @_ZTSFvvE = #cir.const_array<"FvvE" : !cir.array<!s8i x 4>, trailing_zeros> : !cir.array<!s8i x 5>
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// CIR-DAG: cir.global {{.*}} @_ZTIFvvE = #cir.typeinfo<{#cir.global_view<@_ZTVN10__cxxabiv120__function_type_infoE, [2 : i32]> : !cir.ptr<!u8i>, #cir.global_view<@_ZTSFvvE> : !cir.ptr<!u8i>}>
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// The pointer type info _ZTIPDoFvvE must include flag 64 (PTI_Noexcept).
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// CIR-DAG: cir.global {{.*}} @_ZTSPDoFvvE = #cir.const_array<"PDoFvvE" : !cir.array<!s8i x 7>, trailing_zeros> : !cir.array<!s8i x 8>
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// CIR-DAG: cir.global {{.*}} @_ZTIPDoFvvE = #cir.typeinfo<{#cir.global_view<@_ZTVN10__cxxabiv119__pointer_type_infoE, [2 : i32]> : !cir.ptr<!u8i>, #cir.global_view<@_ZTSPDoFvvE> : !cir.ptr<!u8i>, #cir.int<64> : !u32i, #cir.global_view<@_ZTIFvvE> : !cir.ptr<!u8i>}>
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// CIR: cir.throw %{{.*}} : !cir.ptr<!cir.ptr<!cir.func<()>>>, @_ZTIPDoFvvE
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// LLVM-DAG: @_ZTSFvvE = linkonce_odr global [5 x i8] c"FvvE\00", comdat
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// LLVM-DAG: @_ZTIFvvE = linkonce_odr constant { ptr, ptr } { ptr getelementptr (i8, ptr @_ZTVN10__cxxabiv120__function_type_infoE, i64 16), ptr @_ZTSFvvE }, comdat
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// LLVM-DAG: @_ZTSPDoFvvE = linkonce_odr global [8 x i8] c"PDoFvvE\00", comdat
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// LLVM-DAG: @_ZTIPDoFvvE = linkonce_odr constant { ptr, ptr, i32, ptr } { ptr getelementptr (i8, ptr @_ZTVN10__cxxabiv119__pointer_type_infoE, i64 16), ptr @_ZTSPDoFvvE, i32 64, ptr @_ZTIFvvE }, comdat
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// LLVM: call void @__cxa_throw(ptr %{{.*}}, ptr @_ZTIPDoFvvE, ptr null)
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// OGCG-DAG: @_ZTSFvvE = linkonce_odr constant [5 x i8] c"FvvE\00", comdat
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// OGCG-DAG: @_ZTIFvvE = linkonce_odr constant { ptr, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv120__function_type_infoE, i64 2), ptr @_ZTSFvvE }, comdat
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// OGCG-DAG: @_ZTSPDoFvvE = linkonce_odr constant [8 x i8] c"PDoFvvE\00", comdat
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// OGCG-DAG: @_ZTIPDoFvvE = linkonce_odr constant { ptr, ptr, i32, ptr } { ptr getelementptr inbounds (ptr, ptr @_ZTVN10__cxxabiv119__pointer_type_infoE, i64 2), ptr @_ZTSPDoFvvE, i32 64, ptr @_ZTIFvvE }, comdat
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// OGCG: invoke void @__cxa_throw(ptr %{{.*}}, ptr @_ZTIPDoFvvE, ptr null)
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