Checkin the stacker compiler

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10184 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 181 insertions, 0 deletions

diff --git a/projects/Stacker/tools/stkrc/Makefile b/projects/Stacker/tools/stkrc/Makefile
new file mode 100644
index 0000000000..b7e08c412f
--- /dev/null
+++ b/projects/Stacker/tools/stkrc/Makefile
@@ -0,0 +1,26 @@
+##===- projects/sample/lib/sample/Makefile -----------------*- Makefile -*-===##
+
+#
+# Indicate where we are relative to the top of the source tree.
+#
+LEVEL=../../../..
+
+#
+# Give the name of a library.  This will build a dynamic version.
+#
+TOOLNAME=stkrc
+USEDLIBS=stkr_compiler asmparser bcwriter vmcore support.a
+
+ifdef PARSE_DEBUG
+CPPFLAGS = -DPARSE_DEBUG=1
+endif
+
+ifdef FLEX_DEBUG
+CPPFLAGS += -DFLEX_DEBUG=1
+endif
+
+#
+# Include Makefile.common so we know what to do.
+#
+include $(LEVEL)/Makefile.common
+
diff --git a/projects/Stacker/tools/stkrc/stkrc.cpp b/projects/Stacker/tools/stkrc/stkrc.cpp
new file mode 100644
index 0000000000..930ee8df75
--- /dev/null
+++ b/projects/Stacker/tools/stkrc/stkrc.cpp
@@ -0,0 +1,155 @@
+//===--- stkrc.cpp --- The Stacker Compiler -------------------------------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and donated to the LLVM research 
+// group and is distributed under the University of Illinois Open Source 
+// License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+//  This is the "main" program for the Stacker Compiler. It is simply a utility
+//  that invokes the StackerCompiler::compile method (see StackerCompiler.cpp)
+//
+//  To get help using this utility, you can invoke it with:
+//   stkrc --help         - Output information about command line switches
+//
+// 
+//===------------------------------------------------------------------------===
+
+#include "../../lib/compiler/StackerCompiler.h"
+#include "llvm/Assembly/Parser.h"
+#include "llvm/Bytecode/Writer.h"
+#include "llvm/Analysis/Verifier.h"
+#include "Support/CommandLine.h"
+#include "Support/Signals.h"
+#include <fstream>
+#include <memory>
+
+using namespace llvm;
+
+static cl::opt<std::string> 
+InputFilename(cl::Positional, cl::desc("<input .st file>"), cl::init("-"));
+
+static cl::opt<std::string>
+OutputFilename("o", cl::desc("Override output filename"), 
+	cl::value_desc("filename"));
+
+static cl::opt<bool>
+Force("f", cl::desc("Overwrite output files"));
+
+static cl::opt<bool>
+DumpAsm("d", cl::desc("Print LLVM Assembly as parsed"), cl::Hidden);
+
+static cl::opt<uint32_t>
+StackSize("s", cl::desc("Specify program maximum stack size"),
+	cl::value_desc("stacksize"));
+
+#ifdef PARSE_DEBUG 
+static cl::opt<bool>
+ParseDebug("g", cl::desc("Turn on Bison Debugging"), cl::Hidden);
+#endif
+
+#ifdef FLEX_DEBUG
+static cl::opt<bool>
+FlexDebug("x", cl::desc("Turn on Flex Debugging"), cl::Hidden);
+#endif
+
+static cl::opt<bool>
+EchoSource("e", cl::desc("Print Stacker Source as parsed"), 
+	cl::value_desc("echo"));
+
+int main(int argc, char **argv) 
+{
+  cl::ParseCommandLineOptions(argc, argv, " stacker .st -> .bc compiler\n");
+
+  std::ostream *Out = 0;
+  StackerCompiler compiler;
+  try 
+  {
+#ifdef PARSE_DEBUG
+    {
+	extern int Stackerdebug;
+	Stackerdebug = ParseDebug;
+    }
+#endif
+#ifdef FLEX_DEBUG
+    {
+	extern int Stacker_flex_debug;
+	Stacker_flex_debug = FlexDebug;
+    }
+#endif
+    // Parse the file now...
+    
+    std::auto_ptr<Module> M ( 
+	compiler.compile(InputFilename,EchoSource, 1024) );
+    if (M.get() == 0) {
+      std::cerr << argv[0] << ": assembly didn't read correctly.\n";
+      return 1;
+    }
+
+    if (verifyModule(*M.get())) {
+      std::cerr << argv[0]
+                << ": assembly parsed, but does not verify as correct!\n";
+      return 1;
+    }
+  
+    if (DumpAsm) std::cerr << "Here's the assembly:\n" << M.get();
+
+    if (OutputFilename != "") {   // Specified an output filename?
+      if (OutputFilename != "-") {  // Not stdout?
+        if (!Force && std::ifstream(OutputFilename.c_str())) {
+          // If force is not specified, make sure not to overwrite a file!
+          std::cerr << argv[0] << ": error opening '" << OutputFilename
+                    << "': file exists!\n"
+                    << "Use -f command line argument to force output\n";
+          return 1;
+        }
+        Out = new std::ofstream(OutputFilename.c_str());
+      } else {                      // Specified stdout
+	Out = &std::cout;       
+      }
+    } else {
+      if (InputFilename == "-") {
+	OutputFilename = "-";
+	Out = &std::cout;
+      } else {
+	std::string IFN = InputFilename;
+	int Len = IFN.length();
+	if (IFN[Len-3] == '.' && IFN[Len-2] == 's' && IFN[Len-1] == 't') {
+	  // Source ends in .ll
+	  OutputFilename = std::string(IFN.begin(), IFN.end()-3);
+        } else {
+	  OutputFilename = IFN;   // Append a .bc to it
+	}
+	OutputFilename += ".bc";
+
+        if (!Force && std::ifstream(OutputFilename.c_str())) {
+          // If force is not specified, make sure not to overwrite a file!
+          std::cerr << argv[0] << ": error opening '" << OutputFilename
+                    << "': file exists!\n"
+                    << "Use -f command line argument to force output\n";
+          return 1;
+        }
+
+	Out = new std::ofstream(OutputFilename.c_str());
+        // Make sure that the Out file gets unlinked from the disk if we get a
+        // SIGINT
+        RemoveFileOnSignal(OutputFilename);
+      }
+    }
+  
+    if (!Out->good()) {
+      std::cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
+      return 1;
+    }
+   
+    WriteBytecodeToFile(M.get(), *Out);
+  } catch (const ParseException &E) {
+    std::cerr << argv[0] << ": " << E.getMessage() << "\n";
+    return 1;
+  }
+
+  if (Out != &std::cout) delete Out;
+  return 0;
+}