When the number of elements is zero, don't malloc 32GB on 64-bit systems.
Fixes unexpected failures on FreeBSD/amd64 of:
CFrontend/2005-09-24-BitFieldCrash.c:
CFrontend/2007-02-04-EmptyStruct.c:
CFrontend/2007-03-26-ZeroWidthBitfield.c:
CodeGen/Generic/2005-10-18-ZeroSizeStackObject.ll:
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35828 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index b1f0807..10ee707 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -342,7 +342,7 @@
// Otherwise, create the struct layout. Because it is variable length, we
// malloc it, then use placement new.
- unsigned NumElts = Ty->getNumElements();
+ int NumElts = Ty->getNumElements();
StructLayout *L =
(StructLayout *)malloc(sizeof(StructLayout)+(NumElts-1)*sizeof(uint64_t));