69cd776e1e
arguments. * Adds 'nonnull' and 'dereferenceable(N)' to 'this' pointer arguments * Gates 'nonnull' on -f(no-)delete-null-pointer-checks * Introduces this-nonnull.cpp and microsoft-abi-this-nullable.cpp tests to explicitly test the behavior of this change * Refactors hundreds of over-constrained clang tests to permit these attributes, where needed * Updates Clang12 patch notes mentioning this change Reviewed-by: rsmith, jdoerfert Differential Revision: https://reviews.llvm.org/D17993
26 lines
1.1 KiB
C++
26 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fno-rtti-data -O1 -disable-llvm-passes %s -emit-llvm -o - -triple x86_64-windows-msvc | FileCheck %s
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// Even though Foo<int> has an extern template declaration, we have to emit our
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// own copy the vftable when emitting the available externally constructor.
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// CHECK: @"??_7?$Foo@H@@6B@" = linkonce_odr unnamed_addr constant { [1 x i8*] } { [1 x i8*] [
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// CHECK-SAME: i8* bitcast (i8* (%struct.Foo*, i32)* @"??_G?$Foo@H@@UEAAPEAXI@Z" to i8*)
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// CHECK-SAME: ] }, comdat
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// CHECK-LABEL: define dso_local %struct.Foo* @"?f@@YAPEAU?$Foo@H@@XZ"()
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// CHECK: call %struct.Foo* @"??0?$Foo@H@@QEAA@XZ"(%struct.Foo* {{[^,]*}} %{{.*}})
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// CHECK: define available_externally dso_local %struct.Foo* @"??0?$Foo@H@@QEAA@XZ"(%struct.Foo* {{[^,]*}} returned {{[^,]*}} %this)
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// CHECK: store {{.*}} @"??_7?$Foo@H@@6B@"
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// CHECK: define linkonce_odr dso_local i8* @"??_G?$Foo@H@@UEAAPEAXI@Z"(%struct.Foo* {{[^,]*}} %this, i32 %should_call_delete)
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struct Base {
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virtual ~Base();
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};
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template <typename T> struct Foo : Base {
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Foo() {}
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};
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extern template class Foo<int>;
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Foo<int> *f() { return new Foo<int>(); }
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