llvm-project/clang/test/CodeGenCXX/debug-info-friend.cpp

// RUN: %clang -emit-llvm -S -g %s -o - | FileCheck %s

class MyFriend;

class SomeClass {
  friend class MyFriend;
  typedef int SomeType;
};

SomeClass *x;

struct MyFriend {
  static void func(SomeClass::SomeType) {
  }
};

// Emitting debug info for friends unnecessarily bloats debug info without any
// known benefit or debugger feature that requires it. Re-enable this is a
// use-case appears.
// CHECK-NOT: DW_TAG_friend
DebugInfo: don't require full definitions for friend classes Fixes a crash-on-valid introduced by r188486 (which should've occurred earlier but for a blatant bug where calling createFwdDecl from the requireCompleteType callback was useless under -flimit-debug-info and we were just getting lucky with other later callbacks requiring the type anyway). llvm-svn: 188622 2013-08-18 04:50:23 +00:00			`// RUN: %clang -emit-llvm -S -g %s -o - \| FileCheck %s`
Debug info for friends! Patch originally by Alexander Herz. llvm-svn: 112275 2010-08-27 17:47:47 +00:00
			`class MyFriend;`

DebugInfo: don't require full definitions for friend classes Fixes a crash-on-valid introduced by r188486 (which should've occurred earlier but for a blatant bug where calling createFwdDecl from the requireCompleteType callback was useless under -flimit-debug-info and we were just getting lucky with other later callbacks requiring the type anyway). llvm-svn: 188622 2013-08-18 04:50:23 +00:00			`class SomeClass {`
			`friend class MyFriend;`
			`typedef int SomeType;`
Debug info for friends! Patch originally by Alexander Herz. llvm-svn: 112275 2010-08-27 17:47:47 +00:00			`};`

DebugInfo: don't require full definitions for friend classes Fixes a crash-on-valid introduced by r188486 (which should've occurred earlier but for a blatant bug where calling createFwdDecl from the requireCompleteType callback was useless under -flimit-debug-info and we were just getting lucky with other later callbacks requiring the type anyway). llvm-svn: 188622 2013-08-18 04:50:23 +00:00			`SomeClass *x;`
Debug info for friends! Patch originally by Alexander Herz. llvm-svn: 112275 2010-08-27 17:47:47 +00:00
DebugInfo: don't require full definitions for friend classes Fixes a crash-on-valid introduced by r188486 (which should've occurred earlier but for a blatant bug where calling createFwdDecl from the requireCompleteType callback was useless under -flimit-debug-info and we were just getting lucky with other later callbacks requiring the type anyway). llvm-svn: 188622 2013-08-18 04:50:23 +00:00			`struct MyFriend {`
			`static void func(SomeClass::SomeType) {`
			`}`
			`};`

DebugInfo: omit debug info for friends GCC ToT doesn't do this & it's worth about 3.2% on Clang's DWO file size with Clang. Some or all of this may be due to things like r190715 which could have source fixes/improvements, but it's not clear that's the case and that doesn't help other source bases. llvm-svn: 190716 2013-09-13 18:45:00 +00:00			`// Emitting debug info for friends unnecessarily bloats debug info without any`
			`// known benefit or debugger feature that requires it. Re-enable this is a`
			`// use-case appears.`
			`// CHECK-NOT: DW_TAG_friend`