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23 lines
783 B
23 lines
783 B
4 months ago
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// Check that we call llvm.load.relative() on a vtable function call.
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// RUN: %clang_cc1 %s -triple=aarch64-unknown-fuchsia -O3 -S -o - -emit-llvm -fexperimental-relative-c++-abi-vtables | FileCheck %s
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// CHECK: define void @_Z5A_fooP1A(%class.A* %a) local_unnamed_addr
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[this:%[0-9]+]] = bitcast %class.A* %a to i8**
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// CHECK-NEXT: %vtable1 = load i8*, i8** [[this]]
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// CHECK-NEXT: [[func_ptr:%[0-9]+]] = tail call i8* @llvm.load.relative.i32(i8* %vtable1, i32 0)
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// CHECK-NEXT: [[func:%[0-9]+]] = bitcast i8* [[func_ptr]] to void (%class.A*)*
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// CHECK-NEXT: tail call void [[func]](%class.A* {{[^,]*}} %a)
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// CHECK-NEXT: ret void
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// CHECK-NEXT: }
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class A {
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public:
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virtual void foo();
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};
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void A_foo(A *a) {
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a->foo();
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}
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