[llvm-commits] [llvm] r123383 - /llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp

[Bob Wilson]

Author: bwilson
Date: Thu Jan 13 12:26:59 2011
New Revision: 123383

URL: http://llvm.org/viewvc/llvm-project?rev=123383&view=rev
Log:
Check for empty structs, and for consistency, zero-element arrays.

Modified:
    llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp?rev=123383&r1=123382&r2=123383&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/ScalarReplAggregates.cpp Thu Jan 13 12:26:59 2011
@@ -1084,12 +1084,12 @@
                                    const Type *&EltTy) {
   if (const ArrayType *AT = dyn_cast<ArrayType>(T)) {
     NumElts = AT->getNumElements();
-    EltTy = AT->getElementType();
+    EltTy = (NumElts == 0 ? 0 : AT->getElementType());
     return true;
   }
   if (const StructType *ST = dyn_cast<StructType>(T)) {
     NumElts = ST->getNumContainedTypes();
-    EltTy = ST->getContainedType(0);
+    EltTy = (NumElts == 0 ? 0 : ST->getContainedType(0));
     for (unsigned n = 1; n < NumElts; ++n) {
       if (ST->getContainedType(n) != EltTy)
         return false;