Fix PR2113 by verifying allocations.

llvm-svn: 47792

2 files changed, 14 insertions, 3 deletions

diff --git a/llvm/lib/VMCore/Verifier.cpp b/llvm/lib/VMCore/Verifier.cpp
index e86c89bfa82..575bb82df75 100644
--- a/llvm/lib/VMCore/Verifier.cpp
+++ b/llvm/lib/VMCore/Verifier.cpp
@@ -1041,9 +1041,12 @@ void Verifier::visitStoreInst(StoreInst &SI) {
 }
 
 void Verifier::visitAllocationInst(AllocationInst &AI) {
-  const PointerType *Ptr = AI.getType();
-  Assert(Ptr->getAddressSpace() == 0, 
-    "Allocation instruction pointer not in the generic address space!");
+  const PointerType *PTy = AI.getType();
+  Assert1(PTy->getAddressSpace() == 0, 
+          "Allocation instruction pointer not in the generic address space!",
+          &AI);
+  Assert1(PTy->getElementType()->isSized(), "Cannot allocate unsized type",
+          &AI);
   visitInstruction(AI);
 }
 
diff --git a/llvm/test/Verifier/2008-03-01-AllocaSized.ll b/llvm/test/Verifier/2008-03-01-AllocaSized.ll
new file mode 100644
index 00000000000..eb96ced7882
--- /dev/null
+++ b/llvm/test/Verifier/2008-03-01-AllocaSized.ll
@@ -0,0 +1,8 @@
+; RUN: not llvm-as -f %s -o /dev/null |& grep {Cannot allocate unsized type}
+; PR2113
+
+define void @test() {
+	%A = alloca void()
+	ret void
+}
+