[llvm] r190270 - Debug Info: use null instead of "i32 0" in DIBuilder.

[Manman Ren]

Author: mren
Date: Sun Sep  8 01:00:42 2013
New Revision: 190270

URL: http://llvm.org/viewvc/llvm-project?rev=190270&view=rev
Log:
Debug Info: use null instead of "i32 0" in DIBuilder.

For context field of subroutine_type and when creating artificial types.

Modified:
    llvm/trunk/lib/IR/DIBuilder.cpp

Modified: llvm/trunk/lib/IR/DIBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DIBuilder.cpp?rev=190270&r1=190269&r2=190270&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DIBuilder.cpp (original)
+++ llvm/trunk/lib/IR/DIBuilder.cpp Sun Sep  8 01:00:42 2013
@@ -714,7 +714,7 @@ DIBuilder::createSubroutineType(DIFile F
   Value *Elts[] = {
     GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
     Constant::getNullValue(Type::getInt32Ty(VMContext)),
-    Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    NULL,
     MDString::get(VMContext, ""),
     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
     ConstantInt::get(Type::getInt64Ty(VMContext), 0),
@@ -818,12 +818,8 @@ DIType DIBuilder::createArtificialType(D
   SmallVector<Value *, 9> Elts;
   MDNode *N = Ty;
   assert (N && "Unexpected input DIType!");
-  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
-    if (Value *V = N->getOperand(i))
-      Elts.push_back(V);
-    else
-      Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
-  }
+  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
+    Elts.push_back(N->getOperand(i));
 
   unsigned CurFlags = Ty.getFlags();
   CurFlags = CurFlags | DIType::FlagArtificial;
@@ -843,12 +839,8 @@ DIType DIBuilder::createObjectPointerTyp
   SmallVector<Value *, 9> Elts;
   MDNode *N = Ty;
   assert (N && "Unexpected input DIType!");
-  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
-    if (Value *V = N->getOperand(i))
-      Elts.push_back(V);
-    else
-      Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
-  }
+  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
+    Elts.push_back(N->getOperand(i));
 
   unsigned CurFlags = Ty.getFlags();
   CurFlags = CurFlags | (DIType::FlagObjectPointer | DIType::FlagArtificial);