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authorJohn McCall <rjmccall@apple.com>2011-09-09 20:41:01 +0000
committerJohn McCall <rjmccall@apple.com>2011-09-09 20:41:01 +0000
commit7959fee25860cc995964761a6bff9415947a44a4 (patch)
tree96490f32e5d1c119950c0f22c869d1c73cd38861 /clang/lib/Frontend/CompilerInvocation.cpp
parente1378a431305a1c8f3de6322255964d9b2c11503 (diff)
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Treat the weak export of block runtime symbols as a deployment-target
feature akin to the ARC runtime checks. Removes a terrible hack where IR gen needed to find the declarations of those symbols in the translation unit. llvm-svn: 139404
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
-rw-r--r--clang/lib/Frontend/CompilerInvocation.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 426db56..7ea3161 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -665,6 +665,8 @@ static void LangOptsToArgs(const LangOptions &Opts,
Res.push_back("-pthread");
if (Opts.Blocks)
Res.push_back("-fblocks");
+ if (Opts.BlocksRuntimeOptional)
+ Res.push_back("-fblocks-runtime-optional");
if (Opts.EmitAllDecls)
Res.push_back("-femit-all-decls");
if (Opts.MathErrno)
@@ -1667,6 +1669,7 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
Opts.Blocks = Args.hasArg(OPT_fblocks);
+ Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);