Added special treatment of serializing NULL pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43357 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/Deserialize.cpp b/lib/Bitcode/Reader/Deserialize.cpp
index febb2d7..d1d6ef0 100644
--- a/lib/Bitcode/Reader/Deserialize.cpp
+++ b/lib/Bitcode/Reader/Deserialize.cpp
@@ -103,6 +103,11 @@
void Deserializer::ReadPtr(void*& PtrRef) {
unsigned PtrId = ReadInt();
+ if (PtrId == 0) {
+ PtrRef = NULL;
+ return;
+ }
+
BPatchEntry& E = BPatchMap[PtrId];
if (E.Ptr == NULL) {
diff --git a/lib/Bitcode/Writer/Serialize.cpp b/lib/Bitcode/Writer/Serialize.cpp
index fbe1d10..a1d7320 100644
--- a/lib/Bitcode/Writer/Serialize.cpp
+++ b/lib/Bitcode/Writer/Serialize.cpp
@@ -58,10 +58,13 @@
}
unsigned Serializer::getPtrId(void* ptr) {
+ if (!ptr)
+ return 0;
+
MapTy::iterator I = PtrMap.find(ptr);
if (I == PtrMap.end()) {
- unsigned id = PtrMap.size();
+ unsigned id = PtrMap.size()+1;
PtrMap[ptr] = id;
return id;
}