Lower ARM adds/subs to add/sub after adding optional CPSR operand.

[oota-llvm.git] / lib / VMCore / BasicBlock.cpp

diff --git a/lib/VMCore/BasicBlock.cpp b/lib/VMCore/BasicBlock.cpp
index 5fab1d39ae85ad275a865512a159dea8e0f1a105..d0aa275c8fe27dff846c4ac2d4c256937f525743 100644 (file)
--- a/lib/VMCore/BasicBlock.cpp
+++ b/lib/VMCore/BasicBlock.cpp
@@ -167,6 +167,12 @@ Instruction* BasicBlock::getFirstNonPHIOrDbgOrLifetime() {
   return &*i;
 }
 
+BasicBlock::iterator BasicBlock::getFirstInsertionPt() {
+  iterator InsertPt = getFirstNonPHI();
+  if (isa<LandingPadInst>(InsertPt)) ++InsertPt;
+  return InsertPt;
+}
+
 void BasicBlock::dropAllReferences() {
   for(iterator I = begin(), E = end(); I != E; ++I)
     I->dropAllReferences();
@@ -348,3 +354,15 @@ void BasicBlock::replaceSuccessorsPhiUsesWith(BasicBlock *New) {
     }
   }
 }
+
+/// isLandingPad - Return true if this basic block is a landing pad. I.e., it's
+/// the destination of the 'unwind' edge of an invoke instruction.
+bool BasicBlock::isLandingPad() const {
+  return isa<LandingPadInst>(getFirstNonPHI());
+}
+
+/// getLandingPadInst() - Return the landingpad instruction associated with
+/// the landing pad.
+LandingPadInst *BasicBlock::getLandingPadInst() {
+  return dyn_cast<LandingPadInst>(getFirstNonPHI());
+}