Put the functionality for printing a value to a raw_ostream as an
operand into the Value interface just like the core print method is.
That gives a more conistent organization to the IR printing interfaces
-- they are all attached to the IR objects themselves. Also, update all
the users.

This removes the 'Writer.h' header which contained only a single function
declaration.

llvm-svn: 198836
diff --git a/llvm/lib/Analysis/AliasAnalysisCounter.cpp b/llvm/lib/Analysis/AliasAnalysisCounter.cpp
index 2649836..0211be1 100644
--- a/llvm/lib/Analysis/AliasAnalysisCounter.cpp
+++ b/llvm/lib/Analysis/AliasAnalysisCounter.cpp
@@ -14,7 +14,6 @@
 
 #include "llvm/Analysis/Passes.h"
 #include "llvm/Analysis/AliasAnalysis.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
@@ -138,10 +137,10 @@
   if (PrintAll || (PrintAllFailures && R == MayAlias)) {
     errs() << AliasString << ":\t";
     errs() << "[" << LocA.Size << "B] ";
-    WriteAsOperand(errs(), LocA.Ptr, true, M);
+    LocA.Ptr->printAsOperand(errs(), true, M);
     errs() << ", ";
     errs() << "[" << LocB.Size << "B] ";
-    WriteAsOperand(errs(), LocB.Ptr, true, M);
+    LocB.Ptr->printAsOperand(errs(), true, M);
     errs() << "\n";
   }
 
@@ -164,7 +163,7 @@
   if (PrintAll || (PrintAllFailures && R == ModRef)) {
     errs() << MRString << ":  Ptr: ";
     errs() << "[" << Loc.Size << "B] ";
-    WriteAsOperand(errs(), Loc.Ptr, true, M);
+    Loc.Ptr->printAsOperand(errs(), true, M);
     errs() << "\t<->" << *CS.getInstruction() << '\n';
   }
   return R;
diff --git a/llvm/lib/Analysis/AliasAnalysisEvaluator.cpp b/llvm/lib/Analysis/AliasAnalysisEvaluator.cpp
index 15bf973..482119d 100644
--- a/llvm/lib/Analysis/AliasAnalysisEvaluator.cpp
+++ b/llvm/lib/Analysis/AliasAnalysisEvaluator.cpp
@@ -24,7 +24,6 @@
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Instructions.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
@@ -94,8 +93,8 @@
     std::string o1, o2;
     {
       raw_string_ostream os1(o1), os2(o2);
-      WriteAsOperand(os1, V1, true, M);
-      WriteAsOperand(os2, V2, true, M);
+      V1->printAsOperand(os1, true, M);
+      V2->printAsOperand(os2, true, M);
     }
     
     if (o2 < o1)
@@ -111,7 +110,7 @@
                    Module *M) {
   if (P) {
     errs() << "  " << Msg << ":  Ptr: ";
-    WriteAsOperand(errs(), Ptr, true, M);
+    Ptr->printAsOperand(errs(), true, M);
     errs() << "\t<->" << *I << '\n';
   }
 }
diff --git a/llvm/lib/Analysis/AliasSetTracker.cpp b/llvm/lib/Analysis/AliasSetTracker.cpp
index 76693be..035d16e 100644
--- a/llvm/lib/Analysis/AliasSetTracker.cpp
+++ b/llvm/lib/Analysis/AliasSetTracker.cpp
@@ -18,7 +18,6 @@
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Type.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -566,7 +565,7 @@
     OS << "Pointers: ";
     for (iterator I = begin(), E = end(); I != E; ++I) {
       if (I != begin()) OS << ", ";
-      WriteAsOperand(OS << "(", I.getPointer());
+      I.getPointer()->printAsOperand(OS << "(");
       OS << ", " << I.getSize() << ")";
     }
   }
@@ -574,7 +573,7 @@
     OS << "\n    " << UnknownInsts.size() << " Unknown instructions: ";
     for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i) {
       if (i) OS << ", ";
-      WriteAsOperand(OS, UnknownInsts[i]);
+      UnknownInsts[i]->printAsOperand(OS);
     }
   }
   OS << "\n";
diff --git a/llvm/lib/Analysis/DominanceFrontier.cpp b/llvm/lib/Analysis/DominanceFrontier.cpp
index bd94641..74cd158 100644
--- a/llvm/lib/Analysis/DominanceFrontier.cpp
+++ b/llvm/lib/Analysis/DominanceFrontier.cpp
@@ -9,7 +9,6 @@
 
 #include "llvm/Analysis/DominanceFrontier.h"
 #include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
@@ -114,7 +113,7 @@
   for (const_iterator I = begin(), E = end(); I != E; ++I) {
     OS << "  DomFrontier for BB ";
     if (I->first)
-      WriteAsOperand(OS, I->first, false);
+      I->first->printAsOperand(OS, false);
     else
       OS << " <<exit node>>";
     OS << " is:\t";
@@ -125,7 +124,7 @@
          I != E; ++I) {
       OS << ' ';
       if (*I)
-        WriteAsOperand(OS, *I, false);
+        (*I)->printAsOperand(OS, false);
       else
         OS << "<<exit node>>";
     }
diff --git a/llvm/lib/Analysis/IPA/FindUsedTypes.cpp b/llvm/lib/Analysis/IPA/FindUsedTypes.cpp
index 704fa9a..d94ce68 100644
--- a/llvm/lib/Analysis/IPA/FindUsedTypes.cpp
+++ b/llvm/lib/Analysis/IPA/FindUsedTypes.cpp
@@ -17,7 +17,6 @@
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Module.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/InstIterator.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
diff --git a/llvm/lib/Analysis/IVUsers.cpp b/llvm/lib/Analysis/IVUsers.cpp
index 9a8ff22..f56196f 100644
--- a/llvm/lib/Analysis/IVUsers.cpp
+++ b/llvm/lib/Analysis/IVUsers.cpp
@@ -24,7 +24,6 @@
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/Type.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include <algorithm>
@@ -248,7 +247,7 @@
 
 void IVUsers::print(raw_ostream &OS, const Module *M) const {
   OS << "IV Users for loop ";
-  WriteAsOperand(OS, L->getHeader(), false);
+  L->getHeader()->printAsOperand(OS, false);
   if (SE->hasLoopInvariantBackedgeTakenCount(L)) {
     OS << " with backedge-taken count "
        << *SE->getBackedgeTakenCount(L);
@@ -258,13 +257,13 @@
   for (ilist<IVStrideUse>::const_iterator UI = IVUses.begin(),
        E = IVUses.end(); UI != E; ++UI) {
     OS << "  ";
-    WriteAsOperand(OS, UI->getOperandValToReplace(), false);
+    UI->getOperandValToReplace()->printAsOperand(OS, false);
     OS << " = " << *getReplacementExpr(*UI);
     for (PostIncLoopSet::const_iterator
          I = UI->PostIncLoops.begin(),
          E = UI->PostIncLoops.end(); I != E; ++I) {
       OS << " (post-inc with loop ";
-      WriteAsOperand(OS, (*I)->getHeader(), false);
+      (*I)->getHeader()->printAsOperand(OS, false);
       OS << ")";
     }
     OS << " in  ";
diff --git a/llvm/lib/Analysis/Lint.cpp b/llvm/lib/Analysis/Lint.cpp
index 693ea2d..0e94df4 100644
--- a/llvm/lib/Analysis/Lint.cpp
+++ b/llvm/lib/Analysis/Lint.cpp
@@ -46,7 +46,6 @@
 #include "llvm/IR/DataLayout.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/IntrinsicInst.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/InstVisitor.h"
 #include "llvm/Pass.h"
 #include "llvm/PassManager.h"
@@ -129,7 +128,7 @@
       if (isa<Instruction>(V)) {
         MessagesStr << *V << '\n';
       } else {
-        WriteAsOperand(MessagesStr, V, true, Mod);
+        V->printAsOperand(MessagesStr, true, Mod);
         MessagesStr << '\n';
       }
     }
diff --git a/llvm/lib/Analysis/LoopInfo.cpp b/llvm/lib/Analysis/LoopInfo.cpp
index e64b3fc..e406546 100644
--- a/llvm/lib/Analysis/LoopInfo.cpp
+++ b/llvm/lib/Analysis/LoopInfo.cpp
@@ -24,7 +24,6 @@
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/Metadata.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/CFG.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
diff --git a/llvm/lib/Analysis/MemDepPrinter.cpp b/llvm/lib/Analysis/MemDepPrinter.cpp
index 06c498f..55dea6a 100644
--- a/llvm/lib/Analysis/MemDepPrinter.cpp
+++ b/llvm/lib/Analysis/MemDepPrinter.cpp
@@ -14,7 +14,6 @@
 #include "llvm/ADT/SetVector.h"
 #include "llvm/Analysis/MemoryDependenceAnalysis.h"
 #include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/CallSite.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/InstIterator.h"
@@ -177,7 +176,7 @@
       OS << DepTypeStr[type];
       if (DepBB) {
         OS << " in block ";
-        WriteAsOperand(OS, DepBB, /*PrintType=*/false, M);
+        DepBB->printAsOperand(OS, /*PrintType=*/false, M);
       }
       if (DepInst) {
         OS << " from: ";
diff --git a/llvm/lib/Analysis/ModuleDebugInfoPrinter.cpp b/llvm/lib/Analysis/ModuleDebugInfoPrinter.cpp
index 88bb17c..38498aa 100644
--- a/llvm/lib/Analysis/ModuleDebugInfoPrinter.cpp
+++ b/llvm/lib/Analysis/ModuleDebugInfoPrinter.cpp
@@ -19,7 +19,6 @@
 #include "llvm/ADT/Statistic.h"
 #include "llvm/DebugInfo.h"
 #include "llvm/IR/Function.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
diff --git a/llvm/lib/Analysis/PostDominators.cpp b/llvm/lib/Analysis/PostDominators.cpp
index 0b67269..2bcfed1 100644
--- a/llvm/lib/Analysis/PostDominators.cpp
+++ b/llvm/lib/Analysis/PostDominators.cpp
@@ -18,7 +18,6 @@
 #include "llvm/ADT/SetOperations.h"
 #include "llvm/Analysis/DominatorInternals.h"
 #include "llvm/IR/Instructions.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/CFG.h"
 #include "llvm/Support/Debug.h"
 using namespace llvm;
diff --git a/llvm/lib/Analysis/RegionInfo.cpp b/llvm/lib/Analysis/RegionInfo.cpp
index 8470d31..f732ffd 100644
--- a/llvm/lib/Analysis/RegionInfo.cpp
+++ b/llvm/lib/Analysis/RegionInfo.cpp
@@ -15,7 +15,6 @@
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/RegionIterator.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -215,7 +214,7 @@
   if (getEntry()->getName().empty()) {
     raw_string_ostream OS(entryName);
 
-    WriteAsOperand(OS, getEntry(), false);
+    getEntry()->printAsOperand(OS, false);
   } else
     entryName = getEntry()->getName();
 
@@ -223,7 +222,7 @@
     if (getExit()->getName().empty()) {
       raw_string_ostream OS(exitName);
 
-      WriteAsOperand(OS, getExit(), false);
+      getExit()->printAsOperand(OS, false);
     } else
       exitName = getExit()->getName();
   } else
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 6c2400c..86f6784 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -77,7 +77,6 @@
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Operator.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ConstantRange.h"
 #include "llvm/Support/Debug.h"
@@ -138,7 +137,7 @@
 void SCEV::print(raw_ostream &OS) const {
   switch (getSCEVType()) {
   case scConstant:
-    WriteAsOperand(OS, cast<SCEVConstant>(this)->getValue(), false);
+    cast<SCEVConstant>(this)->getValue()->printAsOperand(OS, false);
     return;
   case scTruncate: {
     const SCEVTruncateExpr *Trunc = cast<SCEVTruncateExpr>(this);
@@ -174,7 +173,7 @@
     if (AR->getNoWrapFlags(FlagNW) &&
         !AR->getNoWrapFlags((NoWrapFlags)(FlagNUW | FlagNSW)))
       OS << "nw><";
-    WriteAsOperand(OS, AR->getLoop()->getHeader(), /*PrintType=*/false);
+    AR->getLoop()->getHeader()->printAsOperand(OS, /*PrintType=*/false);
     OS << ">";
     return;
   }
@@ -229,13 +228,13 @@
     Constant *FieldNo;
     if (U->isOffsetOf(CTy, FieldNo)) {
       OS << "offsetof(" << *CTy << ", ";
-      WriteAsOperand(OS, FieldNo, false);
+      FieldNo->printAsOperand(OS, false);
       OS << ")";
       return;
     }
 
     // Otherwise just print it normally.
-    WriteAsOperand(OS, U->getValue(), false);
+    U->getValue()->printAsOperand(OS, false);
     return;
   }
   case scCouldNotCompute:
@@ -7321,7 +7320,7 @@
     PrintLoopInfo(OS, SE, *I);
 
   OS << "Loop ";
-  WriteAsOperand(OS, L->getHeader(), /*PrintType=*/false);
+  L->getHeader()->printAsOperand(OS, /*PrintType=*/false);
   OS << ": ";
 
   SmallVector<BasicBlock *, 8> ExitBlocks;
@@ -7337,7 +7336,7 @@
 
   OS << "\n"
         "Loop ";
-  WriteAsOperand(OS, L->getHeader(), /*PrintType=*/false);
+  L->getHeader()->printAsOperand(OS, /*PrintType=*/false);
   OS << ": ";
 
   if (!isa<SCEVCouldNotCompute>(SE->getMaxBackedgeTakenCount(L))) {
@@ -7359,7 +7358,7 @@
   ScalarEvolution &SE = *const_cast<ScalarEvolution *>(this);
 
   OS << "Classifying expressions for: ";
-  WriteAsOperand(OS, F, /*PrintType=*/false);
+  F->printAsOperand(OS, /*PrintType=*/false);
   OS << "\n";
   for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I)
     if (isSCEVable(I->getType()) && !isa<CmpInst>(*I)) {
@@ -7390,7 +7389,7 @@
     }
 
   OS << "Determining loop execution counts for: ";
-  WriteAsOperand(OS, F, /*PrintType=*/false);
+  F->printAsOperand(OS, /*PrintType=*/false);
   OS << "\n";
   for (LoopInfo::iterator I = LI->begin(), E = LI->end(); I != E; ++I)
     PrintLoopInfo(OS, &SE, *I);
diff --git a/llvm/lib/Analysis/Trace.cpp b/llvm/lib/Analysis/Trace.cpp
index 3b3bacd..5a1acc0 100644
--- a/llvm/lib/Analysis/Trace.cpp
+++ b/llvm/lib/Analysis/Trace.cpp
@@ -17,7 +17,6 @@
 
 #include "llvm/Analysis/Trace.h"
 #include "llvm/IR/Function.h"
-#include "llvm/IR/Writer.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
@@ -37,7 +36,7 @@
   O << "; Trace from function " << F->getName() << ", blocks:\n";
   for (const_iterator i = begin(), e = end(); i != e; ++i) {
     O << "; ";
-    WriteAsOperand(O, *i, true, getModule());
+    (*i)->printAsOperand(O, true, getModule());
     O << "\n";
   }
   O << "; Trace parent function: \n" << *F;