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Automatic Reference Counting.

Browse Source 
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
This commit is contained in:
John McCall
2011-06-15 23:02:42 +00:00
parent ce45f88e45
commit 31168b077c
198 changed files with 13874 additions and 1099 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -169,6 +169,8 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts,
Res.push_back("-fno-use-cxa-atexit");
if (Opts.CXXCtorDtorAliases)
Res.push_back("-mconstructor-aliases");
if (Opts.ObjCAutoRefCountExceptions)
Res.push_back("-fobjc-arc-eh");
if (!Opts.DebugPass.empty()) {
Res.push_back("-mdebug-pass");
Res.push_back(Opts.DebugPass);
@@ -670,6 +672,10 @@ static void LangOptsToArgs(const LangOptions &Opts,
Res.push_back("-fobjc-gc-only");
}
}
if (Opts.ObjCAutoRefCount)
Res.push_back("-fobjc-arc");
if (Opts.ObjCNoAutoRefCountRuntime)
Res.push_back("-fobjc-no-arc-runtime");
if (!Opts.ObjCInferRelatedResultType)
Res.push_back("-fno-objc-infer-related-result-type");
@@ -951,6 +957,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
(Opts.OptimizationLevel > 1 && !Opts.OptimizeSize);
Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
@@ -1480,17 +1487,26 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
if (Args.hasArg(OPT_fno_operator_names))
Opts.CXXOperatorNames = 0;
if (Opts.ObjC1) {
if (Args.hasArg(OPT_fobjc_gc_only))
Opts.setGCMode(LangOptions::GCOnly);
else if (Args.hasArg(OPT_fobjc_gc))
Opts.setGCMode(LangOptions::HybridGC);
else if (Args.hasArg(OPT_fobjc_arc)) {
Opts.ObjCAutoRefCount = 1;
if (!Args.hasArg(OPT_fobjc_nonfragile_abi))
Diags.Report(diag::err_arc_nonfragile_abi);
if (Args.hasArg(OPT_fobjc_no_arc_runtime))
Opts.ObjCNoAutoRefCountRuntime = 1;
}
if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
Opts.ObjCInferRelatedResultType = 0;
}
if (Args.hasArg(OPT_fgnu89_inline))
Opts.GNUInline = 1;
if (Args.hasArg(OPT_fobjc_gc_only))
Opts.setGCMode(LangOptions::GCOnly);
else if (Args.hasArg(OPT_fobjc_gc))
Opts.setGCMode(LangOptions::HybridGC);
if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
Opts.ObjCInferRelatedResultType = 0;
if (Args.hasArg(OPT_fapple_kext)) {
if (!Opts.CPlusPlus)
Diags.Report(diag::warn_c_kext);
@@ -1715,6 +1731,19 @@ static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
Opts.addRemappedFile(Split.first, Split.second);
}
if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
llvm::StringRef Name = A->getValue(Args);
unsigned Library = llvm::StringSwitch<unsigned>(Name)
.Case("libc++", ARCXX_libcxx)
.Case("libstdc++", ARCXX_libstdcxx)
.Case("none", ARCXX_nolib)
.Default(~0U);
if (Library == ~0U)
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
else
Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
}
}
static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,