Remove ExplicitEmulatedTLS and simplify -femulated-tls handling

Currently clangDriver passes -femulated-tls and -fno-emulated-tls to cc1.
cc1 forwards the option to LLVMCodeGen and ExplicitEmulatedTLS is used
to decide the value. Simplify this by moving the Clang decision to
clangDriver and moving the LLVM decision to InitTargetOptionsFromCodeGenFlags.

1 files changed, 2 insertions, 7 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 1ecf116..cb29049 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1536,8 +1536,8 @@ void CompilerInvocation::GenerateCodeGenArgs(
                 F.Filename, SA);
   }
 
-  GenerateArg(
-      Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA);
+  if (Opts.EmulatedTLS)
+    GenerateArg(Args, OPT_femulated_tls, SA);
 
   if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE())
     GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA);
@@ -1890,11 +1890,6 @@ bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
     Opts.LinkBitcodeFiles.push_back(F);
   }
 
-  if (!Args.getLastArg(OPT_femulated_tls) &&
-      !Args.getLastArg(OPT_fno_emulated_tls)) {
-    Opts.EmulatedTLS = T.hasDefaultEmulatedTLS();
-  }
-
   if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
     if (T.isOSAIX()) {
       StringRef Name = A->getValue();