| // Check that the pointer adjustment from the virtual base offset is loaded as a |
| // 32-bit int. |
| |
| // RUN: %clang_cc1 %s -triple=aarch64-unknown-fuchsia -S -o - -emit-llvm | FileCheck %s |
| |
| // CHECK-LABEL: @_ZTv0_n12_N7Derived1fEi( |
| // CHECK-NEXT: entry: |
| // CHECK: [[this:%.+]] = bitcast %class.Derived* %this1 to i8* |
| // CHECK-NEXT: [[this2:%.+]] = bitcast i8* [[this]] to i8** |
| // CHECK-NEXT: [[vtable:%.+]] = load i8*, i8** [[this2]], align 8 |
| // CHECK-NEXT: [[vbase_offset_ptr:%.+]] = getelementptr inbounds i8, i8* [[vtable]], i64 -12 |
| // CHECK-NEXT: [[vbase_offset_ptr2:%.+]] = bitcast i8* [[vbase_offset_ptr]] to i32* |
| // CHECK-NEXT: [[vbase_offset:%.+]] = load i32, i32* [[vbase_offset_ptr2]], align 4 |
| // CHECK-NEXT: [[adj_this:%.+]] = getelementptr inbounds i8, i8* [[this]], i32 [[vbase_offset]] |
| // CHECK-NEXT: [[adj_this2:%.+]] = bitcast i8* [[adj_this]] to %class.Derived* |
| // CHECK: [[call:%.+]] = tail call i32 @_ZN7Derived1fEi(%class.Derived* {{[^,]*}} [[adj_this2]], i32 {{.*}}) |
| // CHECK: ret i32 [[call]] |
| |
| class Base { |
| public: |
| virtual int f(int x); |
| |
| private: |
| long x; |
| }; |
| |
| class Derived : public virtual Base { |
| public: |
| virtual int f(int x); |
| |
| private: |
| long y; |
| }; |
| |
| int Base::f(int x) { return x + 1; } |
| int Derived::f(int x) { return x + 2; } |