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Add -ftls-model command-line flag.

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This allows for setting the default TLS model. (PR9788)

llvm-svn: 159336
This commit is contained in:
Hans Wennborg
2012-06-28 08:01:44 +00:00
parent 608c0b65d7
commit f60f6af9e8
9 changed files with 132 additions and 29 deletions
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32
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -307,6 +307,20 @@ static void CodeGenOptsToArgs(const CodeGenOptions &Opts, ToArgsList &Res) {
Res.push_back("-disable-llvm-verifier");
for (unsigned i = 0, e = Opts.BackendOptions.size(); i != e; ++i)
Res.push_back("-backend-option", Opts.BackendOptions[i]);
switch (Opts.DefaultTLSModel) {
case CodeGenOptions::GeneralDynamicTLSModel:
break;
case CodeGenOptions::LocalDynamicTLSModel:
Res.push_back("-ftls-model=local-dynamic");
break;
case CodeGenOptions::InitialExecTLSModel:
Res.push_back("-ftls-model=initial-exec");
break;
case CodeGenOptions::LocalExecTLSModel:
Res.push_back("-ftls-model=local-exec");
break;
}
}
static void DependencyOutputOptsToArgs(const DependencyOutputOptions &Opts,
@@ -788,7 +802,7 @@ static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) {
if (Opts.AppleKext)
Res.push_back("-fapple-kext");
if (Opts.getVisibilityMode() != DefaultVisibility) {
Res.push_back("-fvisibility");
if (Opts.getVisibilityMode() == HiddenVisibility) {
@@ -1256,6 +1270,22 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
}
}
if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
StringRef Name = A->getValue(Args);
unsigned Model = llvm::StringSwitch<unsigned>(Name)
.Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
.Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
.Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
.Case("local-exec", CodeGenOptions::LocalExecTLSModel)
.Default(~0U);
if (Model == ~0U) {
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Success = false;
} else {
Opts.DefaultTLSModel = static_cast<CodeGenOptions::TLSModel>(Model);
}
}
return Success;
}