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hanchenye-llvm-project/clang/test/CodeGenCXX/class-layout.cpp

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Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446
2009-12-16 04:14:24 +08:00
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
Use the CGRecordLayoutBuilder even if there are no fields, because in C++ an empty class will have a padding byte. llvm-svn: 77205
2009-07-28 01:10:54 +08:00
// An extra byte shoudl be allocated for an empty class.
No need to add tail padding if the resulting LLVM struct type will have the same size as the final record size. llvm-svn: 90820
2009-12-08 09:24:23 +08:00
// CHECK: %struct.A = type { i8 }
Use the CGRecordLayoutBuilder even if there are no fields, because in C++ an empty class will have a padding byte. llvm-svn: 77205
2009-07-28 01:10:54 +08:00
struct A { } a;
No need to add tail padding if the resulting LLVM struct type will have the same size as the final record size. llvm-svn: 90820
2009-12-08 09:24:23 +08:00
// No need to add tail padding here.
// CHECK: %struct.B = type { i8*, i32 }
struct B { void *a; int b; } b;
Baby steps towards fixing PR5589. If a class needs a vtable pointer, add one. llvm-svn: 91545
2009-12-17 01:27:20 +08:00
// C should have a vtable pointer.
// CHECK: %struct.C = type { i8**, i32 }
struct C { virtual void f(); int a; } *c;