Vendor import of llvm trunk r154661:

http://llvm.org/svn/llvm-project/llvm/trunk@r154661

7 files changed, 48 insertions, 11 deletions

diff --git a/tools/llvm-diff/DiffConsumer.cpp b/tools/llvm-diff/DiffConsumer.cpp
index c23e8fb..0528039 100644
--- a/tools/llvm-diff/DiffConsumer.cpp
+++ b/tools/llvm-diff/DiffConsumer.cpp
@@ -44,6 +44,8 @@ static void ComputeNumbering(Function *F, DenseMap<Value*,unsigned> &Numbering){
 }
 
 
+void Consumer::anchor() { }
+
 void DiffConsumer::printValue(Value *V, bool isL) {
   if (V->hasName()) {
     out << (isa<GlobalValue>(V) ? '@' : '%') << V->getName();
@@ -64,6 +66,10 @@ void DiffConsumer::printValue(Value *V, bool isL) {
     }
     return;
   }
+  if (isa<Constant>(V)) {
+    out << *V;
+    return;
+  }
 
   unsigned N = contexts.size();
   while (N > 0) {
diff --git a/tools/llvm-diff/DiffConsumer.h b/tools/llvm-diff/DiffConsumer.h
index b95d427..2060fe1 100644
--- a/tools/llvm-diff/DiffConsumer.h
+++ b/tools/llvm-diff/DiffConsumer.h
@@ -29,6 +29,7 @@ namespace llvm {
 
   /// The interface for consumers of difference data.
   class Consumer {
+    virtual void anchor();
   public:
     /// Record that a local context has been entered.  Left and
     /// Right are IR "containers" of some sort which are being
diff --git a/tools/llvm-diff/DifferenceEngine.cpp b/tools/llvm-diff/DifferenceEngine.cpp
index b240d8c..a5a99f5 100644
--- a/tools/llvm-diff/DifferenceEngine.cpp
+++ b/tools/llvm-diff/DifferenceEngine.cpp
@@ -319,15 +319,19 @@ class FunctionDifferenceEngine {
       bool Difference = false;
 
       DenseMap<ConstantInt*,BasicBlock*> LCases;
-      for (unsigned I = 1, E = LI->getNumCases(); I != E; ++I)
-        LCases[LI->getCaseValue(I)] = LI->getSuccessor(I);
-      for (unsigned I = 1, E = RI->getNumCases(); I != E; ++I) {
-        ConstantInt *CaseValue = RI->getCaseValue(I);
+      
+      for (SwitchInst::CaseIt I = LI->case_begin(), E = LI->case_end();
+           I != E; ++I)
+        LCases[I.getCaseValue()] = I.getCaseSuccessor();
+        
+      for (SwitchInst::CaseIt I = RI->case_begin(), E = RI->case_end();
+           I != E; ++I) {
+        ConstantInt *CaseValue = I.getCaseValue();
         BasicBlock *LCase = LCases[CaseValue];
         if (LCase) {
-          if (TryUnify) tryUnify(LCase, RI->getSuccessor(I));
+          if (TryUnify) tryUnify(LCase, I.getCaseSuccessor());
           LCases.erase(CaseValue);
-        } else if (!Difference) {
+        } else if (Complain || !Difference) {
           if (Complain)
             Engine.logf("right switch has extra case %r") << CaseValue;
           Difference = true;
@@ -628,6 +632,8 @@ void FunctionDifferenceEngine::runBlockDiff(BasicBlock::iterator LStart,
 
 }
 
+void DifferenceEngine::Oracle::anchor() { }
+
 void DifferenceEngine::diff(Function *L, Function *R) {
   Context C(*this, L, R);
 
diff --git a/tools/llvm-diff/DifferenceEngine.h b/tools/llvm-diff/DifferenceEngine.h
index 5b4f80b..7ea79e4 100644
--- a/tools/llvm-diff/DifferenceEngine.h
+++ b/tools/llvm-diff/DifferenceEngine.h
@@ -50,7 +50,9 @@ namespace llvm {
 
     /// An oracle for answering whether two values are equivalent as
     /// operands.
-    struct Oracle {
+    class Oracle {
+      virtual void anchor();
+    public:
       virtual bool operator()(Value *L, Value *R) = 0;
 
     protected:
diff --git a/tools/llvm-diff/LLVMBuild.txt b/tools/llvm-diff/LLVMBuild.txt
new file mode 100644
index 0000000..fa06a03
--- /dev/null
+++ b/tools/llvm-diff/LLVMBuild.txt
@@ -0,0 +1,22 @@
+;===- ./tools/llvm-diff/LLVMBuild.txt --------------------------*- Conf -*--===;
+;
+;                     The LLVM Compiler Infrastructure
+;
+; This file is distributed under the University of Illinois Open Source
+; License. See LICENSE.TXT for details.
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+
+[component_0]
+type = Tool
+name = llvm-diff
+parent = Tools
+required_libraries = AsmParser BitReader
diff --git a/tools/llvm-diff/Makefile b/tools/llvm-diff/Makefile
index 58e49fa..f7fa715 100644
--- a/tools/llvm-diff/Makefile
+++ b/tools/llvm-diff/Makefile
@@ -7,11 +7,11 @@
 # 
 ##===----------------------------------------------------------------------===##
 
-LEVEL = ../..
-TOOLNAME = llvm-diff
+LEVEL := ../..
+TOOLNAME := llvm-diff
 LINK_COMPONENTS := asmparser bitreader
 
 # This tool has no plugins, optimize startup time.
-TOOL_NO_EXPORTS = 1
+TOOL_NO_EXPORTS := 1
 
 include $(LEVEL)/Makefile.common
diff --git a/tools/llvm-diff/llvm-diff.cpp b/tools/llvm-diff/llvm-diff.cpp
index 76853f1..774169b 100644
--- a/tools/llvm-diff/llvm-diff.cpp
+++ b/tools/llvm-diff/llvm-diff.cpp
@@ -38,7 +38,7 @@ static Module *ReadModule(LLVMContext &Context, StringRef Name) {
   SMDiagnostic Diag;
   Module *M = ParseIRFile(Name, Diag, Context);
   if (!M)
-    Diag.Print("llvmdiff", errs());
+    Diag.print("llvm-diff", errs());
   return M;
 }