Don't create a MemoryBuffer just to get the MemoryBufferRef. NFC.

[oota-llvm.git] / tools / llc / llc.cpp

diff --git a/tools/llc/llc.cpp b/tools/llc/llc.cpp
index 712817d9347e8201f93c5ad92ee276e14a3399b7..ff3f2ebe3eb62b49de84377684f5e123cc7f23cb 100644 (file)
--- a/tools/llc/llc.cpp
+++ b/tools/llc/llc.cpp
@@ -41,6 +41,7 @@
 #include "llvm/Support/ToolOutputFile.h"
 #include "llvm/Target/TargetLibraryInfo.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 #include <memory>
 using namespace llvm;
 
@@ -75,15 +76,24 @@ OptLevel("O",
 static cl::opt<std::string>
 TargetTriple("mtriple", cl::desc("Override target triple for module"));
 
-cl::opt<bool> NoVerify("disable-verify", cl::Hidden,
-                       cl::desc("Do not verify input module"));
+static cl::opt<bool> NoVerify("disable-verify", cl::Hidden,
+                              cl::desc("Do not verify input module"));
 
-cl::opt<bool>
-DisableSimplifyLibCalls("disable-simplify-libcalls",
-                        cl::desc("Disable simplify-libcalls"),
-                        cl::init(false));
+static cl::opt<bool> DisableSimplifyLibCalls("disable-simplify-libcalls",
+                                             cl::desc("Disable simplify-libcalls"));
 
-static int compileModule(char**, LLVMContext&);
+static cl::opt<bool> ShowMCEncoding("show-mc-encoding", cl::Hidden,
+                                    cl::desc("Show encoding in .s output"));
+
+static cl::opt<bool> EnableDwarfDirectory(
+    "enable-dwarf-directory", cl::Hidden,
+    cl::desc("Use .file directives with an explicit directory."));
+
+static cl::opt<bool> AsmVerbose("asm-verbose",
+                                cl::desc("Add comments to directives."),
+                                cl::init(true));
+
+static int compileModule(char **, LLVMContext &);
 
 // GetFileNameRoot - Helper function to get the basename of a filename.
 static inline std::string
@@ -149,14 +159,13 @@ static tool_output_file *GetOutputStream(const char *TargetName,
   }
 
   // Open the file.
-  std::string error;
+  std::error_code EC;
   sys::fs::OpenFlags OpenFlags = sys::fs::F_None;
   if (!Binary)
     OpenFlags |= sys::fs::F_Text;
-  tool_output_file *FDOut = new tool_output_file(OutputFilename.c_str(), error,
-                                                 OpenFlags);
-  if (!error.empty()) {
-    errs() << error << '\n';
+  tool_output_file *FDOut = new tool_output_file(OutputFilename, EC, OpenFlags);
+  if (EC) {
+    errs() << EC.message() << '\n';
     delete FDOut;
     return nullptr;
   }
@@ -222,7 +231,7 @@ static int compileModule(char **argv, LLVMContext &Context) {
 
   // If user just wants to list available options, skip module loading
   if (!SkipModule) {
-    M.reset(ParseIRFile(InputFilename, Err, Context));
+    M = parseIRFile(InputFilename, Err, Context);
     mod = M.get();
     if (mod == nullptr) {
       Err.print(argv[0], errs());
@@ -272,6 +281,9 @@ static int compileModule(char **argv, LLVMContext &Context) {
 
   TargetOptions Options = InitTargetOptionsFromCodeGenFlags();
   Options.DisableIntegratedAS = NoIntegratedAssembler;
+  Options.MCOptions.ShowMCEncoding = ShowMCEncoding;
+  Options.MCOptions.MCUseDwarfDirectory = EnableDwarfDirectory;
+  Options.MCOptions.AsmVerbose = AsmVerbose;
 
   std::unique_ptr<TargetMachine> target(
       TheTarget->createTargetMachine(TheTriple.getTriple(), MCPU, FeaturesStr,
@@ -287,9 +299,6 @@ static int compileModule(char **argv, LLVMContext &Context) {
   assert(mod && "Should have exited if we didn't have a module!");
   TargetMachine &Target = *target.get();
 
-  if (EnableDwarfDirectory)
-    Target.setMCUseDwarfDirectory(true);
-
   if (GenerateSoftFloatCalls)
     FloatABIForCalls = FloatABI::Soft;
 
@@ -308,20 +317,14 @@ static int compileModule(char **argv, LLVMContext &Context) {
   PM.add(TLI);
 
   // Add the target data from the target machine, if it exists, or the module.
-  if (const DataLayout *DL = Target.getDataLayout())
+  if (const DataLayout *DL = Target.getSubtargetImpl()->getDataLayout())
     mod->setDataLayout(DL);
   PM.add(new DataLayoutPass(mod));
 
-  // Override default to generate verbose assembly.
-  Target.setAsmVerbosityDefault(true);
-
-  if (RelaxAll) {
-    if (FileType != TargetMachine::CGFT_ObjectFile)
-      errs() << argv[0]
+  if (RelaxAll.getNumOccurrences() > 0 &&
+      FileType != TargetMachine::CGFT_ObjectFile)
+    errs() << argv[0]
              << ": warning: ignoring -mc-relax-all because filetype != obj";
-    else
-      Target.setMCRelaxAll(true);
-  }
 
   {
     formatted_raw_ostream FOS(Out->os());