1b1c8d83d3
Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
26 lines
1.1 KiB
C++
26 lines
1.1 KiB
C++
// RUN: %clang_cc1 -std=c++17 -emit-llvm %s -triple x86_64-windows-msvc -o - | FileCheck %s
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// Make sure virtual base base destructors get referenced and emitted if
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// necessary when the complete ("vbase") destructor is emitted. In this case,
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// clang previously did not emit ~DefaultedDtor.
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struct HasDtor { ~HasDtor(); };
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struct DefaultedDtor {
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~DefaultedDtor() = default;
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HasDtor o;
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};
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struct HasCompleteDtor : virtual DefaultedDtor {
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~HasCompleteDtor();
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};
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void useCompleteDtor(HasCompleteDtor *p) { delete p; }
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// CHECK-LABEL: define dso_local void @"?useCompleteDtor@@YAXPEAUHasCompleteDtor@@@Z"(%struct.HasCompleteDtor* noundef %p)
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// CHECK: call void @"??_DHasCompleteDtor@@QEAAXXZ"({{.*}})
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// CHECK-LABEL: define linkonce_odr dso_local void @"??_DHasCompleteDtor@@QEAAXXZ"(%struct.HasCompleteDtor* {{[^,]*}} %this)
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// CHECK: call void @"??1HasCompleteDtor@@QEAA@XZ"({{.*}})
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// CHECK: call void @"??1DefaultedDtor@@QEAA@XZ"({{.*}})
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// CHECK-LABEL: define linkonce_odr dso_local void @"??1DefaultedDtor@@QEAA@XZ"(%struct.DefaultedDtor* {{[^,]*}} %this)
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// CHECK: call void @"??1HasDtor@@QEAA@XZ"(%struct.HasDtor* {{[^,]*}} %{{.*}})
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