Casting to void* or any other pointer-to-sizeless type (e.g. function pointers) causes a divide-by-zero error. Simple fix: check if the pointee type size is 0 and bail out early if it is.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106401 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Checker/CastSizeChecker.cpp b/lib/Checker/CastSizeChecker.cpp
index 754d775..59ea9e0 100644
--- a/lib/Checker/CastSizeChecker.cpp
+++ b/lib/Checker/CastSizeChecker.cpp
@@ -63,6 +63,11 @@
CharUnits RegionSize = CharUnits::fromQuantity(CI->getValue().getSExtValue());
CharUnits TypeSize = C.getASTContext().getTypeSizeInChars(ToPointeeTy);
+
+ // void, and a few other un-sizeable types
+ if (TypeSize.isZero())
+ return;
+
if (RegionSize % TypeSize != 0) {
if (ExplodedNode *N = C.GenerateSink()) {
if (!BT)