[llvm-commits] CVS: llvm/lib/VMCore/AsmWriter.cpp Instruction.cpp Instructions.cpp Linker.cpp

[Chris Lattner]

Changes in directory llvm/lib/VMCore:

AsmWriter.cpp updated: 1.162 -> 1.163
Instruction.cpp updated: 1.39 -> 1.40
Instructions.cpp updated: 1.4 -> 1.5
Linker.cpp updated: 1.86 -> 1.87
---
Log message:

Add support for undef and unreachable


---
Diffs of the changes:  (+14 -1)

Index: llvm/lib/VMCore/AsmWriter.cpp
diff -u llvm/lib/VMCore/AsmWriter.cpp:1.162 llvm/lib/VMCore/AsmWriter.cpp:1.163
--- llvm/lib/VMCore/AsmWriter.cpp:1.162	Tue Sep 14 00:43:23 2004
+++ llvm/lib/VMCore/AsmWriter.cpp	Sat Oct 16 13:08:06 2004
@@ -518,6 +518,9 @@
   } else if (isa<ConstantPointerNull>(CV)) {
     Out << "null";
 
+  } else if (isa<UndefValue>(CV)) {
+    Out << "undef";
+
   } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
     Out << CE->getOpcodeName() << " (";
     


Index: llvm/lib/VMCore/Instruction.cpp
diff -u llvm/lib/VMCore/Instruction.cpp:1.39 llvm/lib/VMCore/Instruction.cpp:1.40
--- llvm/lib/VMCore/Instruction.cpp:1.39	Mon Oct 11 17:21:39 2004
+++ llvm/lib/VMCore/Instruction.cpp	Sat Oct 16 13:08:06 2004
@@ -88,6 +88,7 @@
   case Switch: return "switch";
   case Invoke: return "invoke";
   case Unwind: return "unwind";
+  case Unreachable: return "unreachable";
     
   // Standard binary operators...
   case Add: return "add";


Index: llvm/lib/VMCore/Instructions.cpp
diff -u llvm/lib/VMCore/Instructions.cpp:1.4 llvm/lib/VMCore/Instructions.cpp:1.5
--- llvm/lib/VMCore/Instructions.cpp:1.4	Fri Oct 15 18:52:53 2004
+++ llvm/lib/VMCore/Instructions.cpp	Sat Oct 16 13:08:06 2004
@@ -249,6 +249,14 @@
 }
 
 //===----------------------------------------------------------------------===//
+//                      UnreachableInst Implementation
+//===----------------------------------------------------------------------===//
+
+void UnreachableInst::setSuccessor(unsigned idx, BasicBlock *NewSucc) {
+  assert(0 && "UnreachableInst has no successors!");
+}
+
+//===----------------------------------------------------------------------===//
 //                        BranchInst Implementation
 //===----------------------------------------------------------------------===//
 
@@ -832,3 +840,4 @@
 SwitchInst *SwitchInst::clone() const { return new SwitchInst(*this); }
 InvokeInst *InvokeInst::clone() const { return new InvokeInst(*this); }
 UnwindInst *UnwindInst::clone() const { return new UnwindInst(); }
+UnreachableInst *UnreachableInst::clone() const { return new UnreachableInst();}


Index: llvm/lib/VMCore/Linker.cpp
diff -u llvm/lib/VMCore/Linker.cpp:1.86 llvm/lib/VMCore/Linker.cpp:1.87
--- llvm/lib/VMCore/Linker.cpp:1.86	Mon Oct  4 21:28:11 2004
+++ llvm/lib/VMCore/Linker.cpp	Sat Oct 16 13:08:06 2004
@@ -310,7 +310,7 @@
         Operands[i] =
           cast<Constant>(RemapOperand(CPS->getOperand(i), LocalMap, GlobalMap));
       Result = ConstantStruct::get(cast<StructType>(CPS->getType()), Operands);
-    } else if (isa<ConstantPointerNull>(CPV)) {
+    } else if (isa<ConstantPointerNull>(CPV) || isa<UndefValue>(CPV)) {
       Result = const_cast<Constant*>(CPV);
     } else if (isa<GlobalValue>(CPV)) {
       Result = cast<Constant>(RemapOperand(CPV, LocalMap, GlobalMap));