llvm-for-llvmta/tools/clang/test/CodeGenCXX/RelativeVTablesABI/available_externally-vtable...

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2022-04-25 13:02:35 +02:00
// Check that available_externally vtables do not receive aliases.
// We check this specifically under the legacy pass manager because the new pass
// manager seems to remove available_externally vtables from the IR entirely.
// RUN: %clang_cc1 %s -triple=aarch64-unknown-fuchsia -O1 -S -o - -emit-llvm -fexperimental-relative-c++-abi-vtables -fno-experimental-new-pass-manager | FileCheck %s
// The VTable for A is available_externally, meaning it can have a definition in
// IR, but is never emitted in this compilation unit. Because it won't be
// emitted here, we cannot make an alias, but we won't need to in the first
// place.
// CHECK: @_ZTV1A = available_externally unnamed_addr constant { [3 x i32] }
// CHECK-NOT: @_ZTV1A = {{.*}}alias
class A {
public:
virtual void foo();
};
void A_foo(A *a);
void func() {
A a;
A_foo(&a);
}