From 24fc0decfe337258a3dacc7936a9da84e2406cdc Mon Sep 17 00:00:00 2001 From: John McCall Date: Wed, 6 Jul 2011 00:26:06 +0000 Subject: Change the driver's logic about Objective-C runtimes: abstract out a structure to hold inferred information, then propagate each invididual bit down to -cc1. Separate the bits of "supports weak" and "has a native ARC runtime"; make the latter a CodeGenOption. The tool chain is still driving this decision, because it's the place that has the required deployment target information on Darwin, but at least it's better-factored now. llvm-svn: 134453 --- clang/lib/Driver/ToolChain.cpp | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'clang/lib/Driver/ToolChain.cpp') diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp index cbbbc5c4de2..0cce5175492 100644 --- a/clang/lib/Driver/ToolChain.cpp +++ b/clang/lib/Driver/ToolChain.cpp @@ -15,7 +15,9 @@ #include "clang/Driver/Driver.h" #include "clang/Driver/DriverDiagnostic.h" #include "clang/Driver/HostInfo.h" +#include "clang/Driver/ObjCRuntime.h" #include "clang/Driver/Options.h" +#include "llvm/Support/ErrorHandling.h" using namespace clang::driver; @@ -47,6 +49,23 @@ bool ToolChain::HasNativeLLVMSupport() const { return false; } +void ToolChain::configureObjCRuntime(ObjCRuntime &runtime) const { + switch (runtime.getKind()) { + case ObjCRuntime::NeXT: + // Assume a minimal NeXT runtime. + runtime.HasARC = false; + runtime.HasWeak = false; + return; + + case ObjCRuntime::GNU: + // Assume a maximal GNU runtime. + runtime.HasARC = true; + runtime.HasWeak = true; + return; + } + llvm_unreachable("invalid runtime kind!"); +} + /// getARMTargetCPU - Get the (LLVM) name of the ARM cpu we are targeting. // // FIXME: tblgen this. -- cgit v1.2.3