<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Sure. This is to highlight a change introduced a few months ago:<div><br></div><div><div>Author: efriedma</div><div>Date: Tue Jun 18 22:41:37 2013 +0000</div><div><br></div><div> Introduce a new mangling for protocol-qualified ObjC types in C++. This allows</div><div> to provide proper overloading, and also prevents mangling conflicts with</div><div> template arguments of protocol-qualified type.</div><div><br></div><div> This is a non-backward-compatible mangling change, but per discussion with</div><div> John, the benefits outweigh this cost.</div><div><br></div><div> <a href="https://llvm.org/svn/llvm-project/cfe/trunk@184250">https://llvm.org/svn/llvm-project/cfe/trunk@184250</a></div><div><br></div><div>I’ll mention it on the language extensions.</div><div><br></div><div><div><div><div>On Oct 14, 2013, at 8:57 PM, Nico Weber <<a href="mailto:thakis@chromium.org">thakis@chromium.org</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">Should this be documented in <a href="http://clang.llvm.org/docs/LanguageExtensions.html#objective-c-features">http://clang.llvm.org/docs/LanguageExtensions.html#objective-c-features</a> ?</div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Mon, Oct 14, 2013 at 4:48 PM, Ted Kremenek <span dir="ltr"><<a href="mailto:kremenek@apple.com" target="_blank">kremenek@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Author: kremenek<br>
Date: Mon Oct 14 18:48:27 2013<br>
New Revision: 192643<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=192643&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=192643&view=rev</a><br>
Log:<br>
Add has_feature support for reflecting the presence of refined Objective-C ABI mangling for qualified id<...>. Fixes <<a href="rdar://problem/14799110">rdar://problem/14799110</a>>.<br>
<br>
Modified:<br>
cfe/trunk/lib/Lex/PPMacroExpansion.cpp<br>
<br>
Modified: cfe/trunk/lib/Lex/PPMacroExpansion.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPMacroExpansion.cpp?rev=192643&r1=192642&r2=192643&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPMacroExpansion.cpp?rev=192643&r1=192642&r2=192643&view=diff</a><br>
==============================================================================<br>
--- cfe/trunk/lib/Lex/PPMacroExpansion.cpp (original)<br>
+++ cfe/trunk/lib/Lex/PPMacroExpansion.cpp Mon Oct 14 18:48:27 2013<br>
@@ -897,6 +897,7 @@ static bool HasFeature(const Preprocesso<br>
.Case("objc_modules", LangOpts.ObjC2 && LangOpts.Modules)<br>
.Case("objc_nonfragile_abi", LangOpts.ObjCRuntime.isNonFragile())<br>
.Case("objc_property_explicit_atomic", true) // Does clang support explicit "atomic" keyword?<br>
+ .Case("objc_protocol_qualifier_mangling", true)<br>
.Case("objc_weak_class", LangOpts.ObjCRuntime.hasWeakClassImport())<br>
.Case("ownership_holds", true)<br>
.Case("ownership_returns", true)<br>
<br>
<br>
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</blockquote></div><br></div>
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