X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=tools%2Fllvm-extract%2Fllvm-extract.cpp;h=8da63fb1797ea7b212f042f26dfc44acfdb0b776;hb=12af22e8cc217827cf4f118b0f5e4ebbda9925ae;hp=2ed11c52b2b3a35b978a4f152e02555e5d11f46d;hpb=db186c4c83985d6dc9389fb747a52820357a98d3;p=oota-llvm.git

diff --git a/tools/llvm-extract/llvm-extract.cpp b/tools/llvm-extract/llvm-extract.cpp
index 2ed11c52b2b..8da63fb1797 100644
--- a/tools/llvm-extract/llvm-extract.cpp
+++ b/tools/llvm-extract/llvm-extract.cpp
@@ -12,23 +12,25 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
+#include "llvm/ADT/SetVector.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Bitcode/BitcodeWriterPass.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/IRPrintingPasses.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IRReader/IRReader.h"
 #include "llvm/PassManager.h"
-#include "llvm/Assembly/PrintModulePass.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/Transforms/IPO.h"
-#include "llvm/Target/TargetData.h"
 #include "llvm/Support/CommandLine.h"
-#include "llvm/Support/IRReader.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/ToolOutputFile.h"
-#include "llvm/Support/SystemUtils.h"
-#include "llvm/Support/Signals.h"
 #include "llvm/Support/Regex.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SetVector.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/SystemUtils.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Transforms/IPO.h"
 #include <memory>
 using namespace llvm;
 
@@ -52,13 +54,26 @@ static cl::list<std::string>
 ExtractFuncs("func", cl::desc("Specify function to extract"),
              cl::ZeroOrMore, cl::value_desc("function"));
 
-// ExtractRegExpFuncs - The functions, matched via regular expression, to 
+// ExtractRegExpFuncs - The functions, matched via regular expression, to
 // extract from the module.
 static cl::list<std::string>
 ExtractRegExpFuncs("rfunc", cl::desc("Specify function(s) to extract using a "
                                      "regular expression"),
                    cl::ZeroOrMore, cl::value_desc("rfunction"));
 
+// ExtractAlias - The alias to extract from the module.
+static cl::list<std::string>
+ExtractAliases("alias", cl::desc("Specify alias to extract"),
+               cl::ZeroOrMore, cl::value_desc("alias"));
+
+
+// ExtractRegExpAliases - The aliases, matched via regular expression, to
+// extract from the module.
+static cl::list<std::string>
+ExtractRegExpAliases("ralias", cl::desc("Specify alias(es) to extract using a "
+                                        "regular expression"),
+                     cl::ZeroOrMore, cl::value_desc("ralias"));
+
 // ExtractGlobals - The globals to extract from the module.
 static cl::list<std::string>
 ExtractGlobals("glob", cl::desc("Specify global to extract"),
@@ -86,10 +101,9 @@ int main(int argc, char **argv) {
 
   // Use lazy loading, since we only care about selected global values.
   SMDiagnostic Err;
-  std::auto_ptr<Module> M;
-  M.reset(getLazyIRFileModule(InputFilename, Err, Context));
+  std::unique_ptr<Module> M = getLazyIRFileModule(InputFilename, Err, Context);
 
-  if (M.get() == 0) {
+  if (!M.get()) {
     Err.print(argv[0], errs());
     return 1;
   }
@@ -97,6 +111,40 @@ int main(int argc, char **argv) {
   // Use SetVector to avoid duplicates.
   SetVector<GlobalValue *> GVs;
 
+  // Figure out which aliases we should extract.
+  for (size_t i = 0, e = ExtractAliases.size(); i != e; ++i) {
+    GlobalAlias *GA = M->getNamedAlias(ExtractAliases[i]);
+    if (!GA) {
+      errs() << argv[0] << ": program doesn't contain alias named '"
+             << ExtractAliases[i] << "'!\n";
+      return 1;
+    }
+    GVs.insert(GA);
+  }
+
+  // Extract aliases via regular expression matching.
+  for (size_t i = 0, e = ExtractRegExpAliases.size(); i != e; ++i) {
+    std::string Error;
+    Regex RegEx(ExtractRegExpAliases[i]);
+    if (!RegEx.isValid(Error)) {
+      errs() << argv[0] << ": '" << ExtractRegExpAliases[i] << "' "
+        "invalid regex: " << Error;
+    }
+    bool match = false;
+    for (Module::alias_iterator GA = M->alias_begin(), E = M->alias_end();
+         GA != E; GA++) {
+      if (RegEx.match(GA->getName())) {
+        GVs.insert(&*GA);
+        match = true;
+      }
+    }
+    if (!match) {
+      errs() << argv[0] << ": program doesn't contain global named '"
+             << ExtractRegExpAliases[i] << "'!\n";
+      return 1;
+    }
+  }
+
   // Figure out which globals we should extract.
   for (size_t i = 0, e = ExtractGlobals.size(); i != e; ++i) {
     GlobalValue *GV = M->getNamedGlobal(ExtractGlobals[i]);
@@ -117,10 +165,9 @@ int main(int argc, char **argv) {
         "invalid regex: " << Error;
     }
     bool match = false;
-    for (Module::global_iterator GV = M->global_begin(),
-           E = M->global_end(); GV != E; GV++) {
-      if (RegEx.match(GV->getName())) {
-        GVs.insert(&*GV);
+    for (auto &GV : M->globals()) {
+      if (RegEx.match(GV.getName())) {
+        GVs.insert(&GV);
         match = true;
       }
     }
@@ -180,22 +227,19 @@ int main(int argc, char **argv) {
   else {
     // Deleting. Materialize every GV that's *not* in GVs.
     SmallPtrSet<GlobalValue *, 8> GVSet(GVs.begin(), GVs.end());
-    for (Module::global_iterator I = M->global_begin(), E = M->global_end();
-         I != E; ++I) {
-      GlobalVariable *G = I;
-      if (!GVSet.count(G) && G->isMaterializable()) {
+    for (auto &G : M->globals()) {
+      if (!GVSet.count(&G) && G.isMaterializable()) {
         std::string ErrInfo;
-        if (G->Materialize(&ErrInfo)) {
+        if (G.Materialize(&ErrInfo)) {
           errs() << argv[0] << ": error reading input: " << ErrInfo << "\n";
           return 1;
         }
       }
     }
-    for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I) {
-      Function *F = I;
-      if (!GVSet.count(F) && F->isMaterializable()) {
+    for (auto &F : *M) {
+      if (!GVSet.count(&F) && F.isMaterializable()) {
         std::string ErrInfo;
-        if (F->Materialize(&ErrInfo)) {
+        if (F.Materialize(&ErrInfo)) {
           errs() << argv[0] << ": error reading input: " << ErrInfo << "\n";
           return 1;
         }
@@ -206,7 +250,7 @@ int main(int argc, char **argv) {
   // In addition to deleting all other functions, we also want to spiff it
   // up a little bit.  Do this now.
   PassManager Passes;
-  Passes.add(new TargetData(M.get())); // Use correct TargetData
+  Passes.add(new DataLayoutPass(M.get())); // Use correct DataLayout
 
   std::vector<GlobalValue*> Gvs(GVs.begin(), GVs.end());
 
@@ -216,16 +260,15 @@ int main(int argc, char **argv) {
   Passes.add(createStripDeadDebugInfoPass());    // Remove dead debug info
   Passes.add(createStripDeadPrototypesPass());   // Remove dead func decls
 
-  std::string ErrorInfo;
-  tool_output_file Out(OutputFilename.c_str(), ErrorInfo,
-                       raw_fd_ostream::F_Binary);
-  if (!ErrorInfo.empty()) {
-    errs() << ErrorInfo << '\n';
+  std::error_code EC;
+  tool_output_file Out(OutputFilename, EC, sys::fs::F_None);
+  if (EC) {
+    errs() << EC.message() << '\n';
     return 1;
   }
 
   if (OutputAssembly)
-    Passes.add(createPrintModulePass(&Out.os()));
+    Passes.add(createPrintModulePass(Out.os()));
   else if (Force || !CheckBitcodeOutputToConsole(Out.os(), true))
     Passes.add(createBitcodeWriterPass(Out.os()));