Files
clang-p2996/clang/test/CodeGenCXX/derived-cast.cpp
Nikita Popov 532dc62b90 [OpaquePtrs][Clang] Add -no-opaque-pointers to tests (NFC)
This adds -no-opaque-pointers to clang tests whose output will
change when opaque pointers are enabled by default. This is
intended to be part of the migration approach described in
https://discourse.llvm.org/t/enabling-opaque-pointers-by-default/61322/9.

The patch has been produced by replacing %clang_cc1 with
%clang_cc1 -no-opaque-pointers for tests that fail with opaque
pointers enabled. Worth noting that this doesn't cover all tests,
there's a remaining ~40 tests not using %clang_cc1 that will need
a followup change.

Differential Revision: https://reviews.llvm.org/D123115
2022-04-07 12:09:47 +02:00

28 lines
577 B
C++

// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
class A {
int a;
};
class B {
int b;
public:
A *getAsA();
};
class X : public A, public B {
int x;
};
// PR35909 - https://bugs.llvm.org/show_bug.cgi?id=35909
A *B::getAsA() {
return static_cast<X*>(this);
// CHECK-LABEL: define{{.*}} %class.A* @_ZN1B6getAsAEv
// CHECK: %[[THIS:.*]] = load %class.B*, %class.B**
// CHECK-NEXT: %[[BC:.*]] = bitcast %class.B* %[[THIS]] to i8*
// CHECK-NEXT: getelementptr inbounds i8, i8* %[[BC]], i64 -4
}