Thanks for upstreaming this! Should this only happen in C++11 mode? libc++ seems to be measurably slower than libstdc++ in C++03 mode (PR17703, PR14554, PR14555).
On Sat, Nov 2, 2013 at 4:19 PM, Bob Wilson <bob.wil...@apple.com> wrote: > Author: bwilson > Date: Sat Nov 2 18:19:53 2013 > New Revision: 193934 > > URL: http://llvm.org/viewvc/llvm-project?rev=193934&view=rev > Log: > Default to use libc++ on OS X 10.9+ and iOS 7+. > > Modified: > cfe/trunk/lib/Driver/ToolChains.cpp > cfe/trunk/test/PCH/cxx-typeid.cpp > > Modified: cfe/trunk/lib/Driver/ToolChains.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains.cpp?rev=193934&r1=193933&r2=193934&view=diff > > ============================================================================== > --- cfe/trunk/lib/Driver/ToolChains.cpp (original) > +++ cfe/trunk/lib/Driver/ToolChains.cpp Sat Nov 2 18:19:53 2013 > @@ -839,6 +839,12 @@ DerivedArgList *Darwin::TranslateArgs(co > } > } > > + // Default to use libc++ on OS X 10.9+ and iOS 7+. > + if (((isTargetMacOS() && !isMacosxVersionLT(10, 9)) || > + (isTargetIPhoneOS() && !isIPhoneOSVersionLT(7, 0))) && > + !Args.getLastArg(options::OPT_stdlib_EQ)) > + DAL->AddJoinedArg(0, Opts.getOption(options::OPT_stdlib_EQ), > "libc++"); > + > // Validate the C++ standard library choice. > CXXStdlibType Type = GetCXXStdlibType(*DAL); > if (Type == ToolChain::CST_Libcxx) { > > Modified: cfe/trunk/test/PCH/cxx-typeid.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/PCH/cxx-typeid.cpp?rev=193934&r1=193933&r2=193934&view=diff > > ============================================================================== > --- cfe/trunk/test/PCH/cxx-typeid.cpp (original) > +++ cfe/trunk/test/PCH/cxx-typeid.cpp Sat Nov 2 18:19:53 2013 > @@ -1,8 +1,8 @@ > // Test this without pch. > -// RUN: %clang_cc1 -include %S/cxx-typeid.h -fsyntax-only -verify %s > +// RUN: %clang_cc1 -include %S/cxx-typeid.h -fsyntax-only > -stdlib=libstdc++ -verify %s > > -// RUN: %clang_cc1 -x c++-header -emit-pch -o %t.pch %S/cxx-typeid.h > -// RUN: %clang_cc1 -include-pch %t.pch -fsyntax-only -verify %s > +// RUN: %clang_cc1 -x c++-header -emit-pch -stdlib=libstdc++ -o %t.pch > %S/cxx-typeid.h > +// RUN: %clang_cc1 -include-pch %t.pch -fsyntax-only -stdlib=libstdc++ > -verify %s > > // expected-no-diagnostics > > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits >
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