Show command-line args and features passed into backend in debug output. Approved by Evan Cheng.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86797 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 10 insertions, 0 deletions

diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp
index 626daa2..07900d8 100644
--- a/lib/Support/CommandLine.cpp
+++ b/lib/Support/CommandLine.cpp
@@ -17,6 +17,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/ManagedStatic.h"
@@ -765,6 +766,11 @@ void cl::ParseCommandLineOptions(int argc, char **argv,
       free(*i);
   }
 
+  DEBUG(errs() << "\nArgs: ";
+        for (int i = 0; i < argc; ++i)
+          errs() << argv[i] << ' ';
+       );
+
   // If we had an error processing our arguments, don't let the program execute
   if (ErrorParsing) exit(1);
 }
diff --git a/utils/TableGen/SubtargetEmitter.cpp b/utils/TableGen/SubtargetEmitter.cpp
index c8cf234..0dbfcbe 100644
--- a/utils/TableGen/SubtargetEmitter.cpp
+++ b/utils/TableGen/SubtargetEmitter.cpp
@@ -519,6 +519,8 @@ void SubtargetEmitter::ParseFeaturesFunction(raw_ostream &OS) {
   OS << Target;
   OS << "Subtarget::ParseSubtargetFeatures(const std::string &FS,\n"
      << "                                  const std::string &CPU) {\n"
+     << "  DEBUG(errs() << \"\\nFeatures:\" << FS);\n"
+     << "  DEBUG(errs() << \"\\nCPU:\" << CPU);\n"
      << "  SubtargetFeatures Features(FS);\n"
      << "  Features.setCPUIfNone(CPU);\n"
      << "  uint32_t Bits =  Features.getBits(SubTypeKV, SubTypeKVSize,\n"
@@ -558,6 +560,8 @@ void SubtargetEmitter::run(raw_ostream &OS) {
 
   EmitSourceFileHeader("Subtarget Enumeration Source Fragment", OS);
 
+  OS << "#include \"llvm/Support/Debug.h\"\n";
+  OS << "#include \"llvm/Support/raw_ostream.h\"\n";
   OS << "#include \"llvm/Target/SubtargetFeature.h\"\n";
   OS << "#include \"llvm/Target/TargetInstrItineraries.h\"\n\n";