llvm-project/clang/test/CodeGenCXX/dereferenceable.cpp

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2020-02-05 03:43:15 +08:00
// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-linux-gnu | FileCheck %s
struct A { void *p; void *q; void *r; };
struct B : A {};
static_assert(sizeof(B) == 24);
// CHECK: define dereferenceable(24) {{.*}} @_Z1fR1B({{.*}} dereferenceable(24)
B &f(B &b) { return b; }
struct C : virtual A {};
static_assert(sizeof(C) == 32);
// CHECK: define dereferenceable(8) {{.*}} @_Z1fR1C({{.*}} dereferenceable(8)
C &f(C &c) { return c; }