Move LLVM backend options to explicit clang-cc / clang -cc1 options, which we then manually pass to the command line library; eventually the latter grossness should be fixed by a real API when creating the target machine.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90063 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 25 deletions

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index c79b0939da..ed4d39123a 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -700,8 +700,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     else
       Model = getToolChain().GetDefaultRelocationModel();
   }
-  CmdArgs.push_back("-relocation-model");
-  CmdArgs.push_back(Model);
+  if (llvm::StringRef(Model) != "pic") {
+    CmdArgs.push_back("-mrelocation-model");
+    CmdArgs.push_back(Model);
+  }
 
   // Infer the __PIC__ value.
   //
@@ -711,26 +713,29 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back("-pic-level");
     CmdArgs.push_back(Args.hasArg(options::OPT_fPIC) ? "2" : "1");
   }
+  if (!Args.hasFlag(options::OPT_fmerge_all_constants,
+                    options::OPT_fno_merge_all_constants))
+    CmdArgs.push_back("-no-merge-all-constants");
+
+  // LLVM Code Generator Options.
 
-  if (Args.hasArg(options::OPT_ftime_report))
-    CmdArgs.push_back("-time-passes");
   // FIXME: Set --enable-unsafe-fp-math.
   if (Args.hasFlag(options::OPT_fno_omit_frame_pointer,
                    options::OPT_fomit_frame_pointer))
-    CmdArgs.push_back("-disable-fp-elim");
+    CmdArgs.push_back("-mdisable-fp-elim");
   if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
-                    options::OPT_fno_zero_initialized_in_bss,
-                    true))
-    CmdArgs.push_back("-nozero-initialized-in-bss");
+                    options::OPT_fno_zero_initialized_in_bss))
+    CmdArgs.push_back("-mno-zero-initialized-in-bss");
   if (Args.hasArg(options::OPT_dA) || Args.hasArg(options::OPT_fverbose_asm))
-    CmdArgs.push_back("-asm-verbose");
-  if (Args.hasArg(options::OPT_fdebug_pass_structure))
-    CmdArgs.push_back("-debug-pass=Structure");
-  if (Args.hasArg(options::OPT_fdebug_pass_arguments))
-    CmdArgs.push_back("-debug-pass=Arguments");
-  if (!Args.hasFlag(options::OPT_fmerge_all_constants,
-                    options::OPT_fno_merge_all_constants))
-    CmdArgs.push_back("-no-merge-all-constants");
+    CmdArgs.push_back("-masm-verbose");
+  if (Args.hasArg(options::OPT_fdebug_pass_structure)) {
+    CmdArgs.push_back("-mdebug-pass");
+    CmdArgs.push_back("Structure");
+  }
+  if (Args.hasArg(options::OPT_fdebug_pass_arguments)) {
+    CmdArgs.push_back("-mdebug-pass");
+    CmdArgs.push_back("Arguments");
+  }
 
   // This is a coarse approximation of what llvm-gcc actually does, both
   // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more
@@ -742,15 +747,18 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
                  !Args.hasArg(options::OPT_mkernel));
   if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables,
                    AsynchronousUnwindTables))
-    CmdArgs.push_back("-unwind-tables=1");
-  else
-    CmdArgs.push_back("-unwind-tables=0");
+    CmdArgs.push_back("-munwind-tables");
+
+  if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
+    CmdArgs.push_back("-mlimit-float-precision");
+    CmdArgs.push_back(A->getValue(Args));
+  }
 
   // FIXME: Handle -mtune=.
   (void) Args.hasArg(options::OPT_mtune_EQ);
 
   if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) {
-    CmdArgs.push_back("-code-model");
+    CmdArgs.push_back("-mcode-model");
     CmdArgs.push_back(A->getValue(Args));
   }
 
@@ -776,11 +784,6 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
                    getToolChain().IsMathErrnoDefault()))
     CmdArgs.push_back("-fno-math-errno");
 
-  if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
-    CmdArgs.push_back("-limit-float-precision");
-    CmdArgs.push_back(A->getValue(Args));
-  }
-
   Arg *Unsupported;
   if ((Unsupported = Args.getLastArg(options::OPT_MG)) ||
       (Unsupported = Args.getLastArg(options::OPT_MQ)) ||