llvm-project/clang/test/CodeGenCXX/member-pointer-cast.cpp

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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin9 | FileCheck %s
struct A { int a; };
struct B { int b; };
struct C : B, A { };
int A::*pa;
int C::*pc;
void f() {
// CHECK: store i64 -1, i64* @pa
pa = 0;
// CHECK: [[ADJ:%[a-zA-Z0-9\.]+]] = add i64 {{.*}}, 4
// CHECK: store i64 [[ADJ]], i64* @pc
pc = pa;
// CHECK: [[ADJ:%[a-zA-Z0-9\.]+]] = sub i64 {{.*}}, 4
// CHECK: store i64 [[ADJ]], i64* @pa
pa = static_cast<int A::*>(pc);
}