commit c71108b6f843f39d4a305e6d351e4a2be4f604b2
author Nadav Rotem <nadav.rotem@intel.com> Mon Mar 26 20:39:18 2012 +0000
committer Nadav Rotem <nadav.rotem@intel.com> Mon Mar 26 20:39:18 2012 +0000
tree f6240f3dea405e731eeba5bd6afaf61ce0ebaebd
parent 05fecbe42e835b30274a7b38af27687a8abbd114

PR12357: The pointer was used before it was checked.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153465 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/InstCombine/InstructionCombining.cpp

diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp
index 349ba83..8802ba4 100644
--- a/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -915,11 +915,13 @@
 
   // Handle gep(bitcast x) and gep(gep x, 0, 0, 0).
   Value *StrippedPtr = PtrOp->stripPointerCasts();
-  PointerType *StrippedPtrTy = dyn_cast<PointerType>(StrippedPtr->getType());
+
   // We do not handle pointer-vector geps here
   if (!StrippedPtr)
     return 0;
 
+  PointerType *StrippedPtrTy = dyn_cast<PointerType>(StrippedPtr->getType());
+
   if (StrippedPtr != PtrOp &&
     StrippedPtrTy->getAddressSpace() == GEP.getPointerAddressSpace()) {