Add prototype for CodeTextRegion.
A CodeTextRegion wraps two kinds of data: FunctionDecl* or SymbolRef.
The latter comes from the symbolic function pointer that are generated from
function calls or input data.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68777 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemRegion.cpp b/lib/Analysis/MemRegion.cpp
index 7c13f07..c8a43a5 100644
--- a/lib/Analysis/MemRegion.cpp
+++ b/lib/Analysis/MemRegion.cpp
@@ -107,6 +107,17 @@
ElementRegion::ProfileRegion(ID, Index, superRegion);
}
+void CodeTextRegion::ProfileRegion(llvm::FoldingSetNodeID& ID, const void* data,
+ QualType t) {
+ ID.AddInteger(MemRegion::CodeTextRegionKind);
+ ID.AddPointer(data);
+ ID.Add(t);
+}
+
+void CodeTextRegion::Profile(llvm::FoldingSetNodeID& ID) const {
+ CodeTextRegion::ProfileRegion(ID, Data, LocationType);
+}
+
//===----------------------------------------------------------------------===//
// getLValueType() and getRValueType()
//===----------------------------------------------------------------------===//
@@ -209,6 +220,10 @@
return LazyAllocate(unknown);
}
+MemSpaceRegion* MemRegionManager::getCodeRegion() {
+ return LazyAllocate(code);
+}
+
bool MemRegionManager::onStack(const MemRegion* R) {
while (const SubRegion* SR = dyn_cast<SubRegion>(R))
R = SR->getSuperRegion();
@@ -306,6 +321,39 @@
return R;
}
+CodeTextRegion* MemRegionManager::getCodeTextRegion(const FunctionDecl* fd,
+ QualType t) {
+ llvm::FoldingSetNodeID ID;
+ CodeTextRegion::ProfileRegion(ID, fd, t);
+ void* InsertPos;
+ MemRegion* data = Regions.FindNodeOrInsertPos(ID, InsertPos);
+ CodeTextRegion* R = cast_or_null<CodeTextRegion>(data);
+
+ if (!R) {
+ R = (CodeTextRegion*) A.Allocate<CodeTextRegion>();
+ new (R) CodeTextRegion(fd, t, getCodeRegion());
+ Regions.InsertNode(R, InsertPos);
+ }
+
+ return R;
+}
+
+CodeTextRegion* MemRegionManager::getCodeTextRegion(SymbolRef sym, QualType t) {
+ llvm::FoldingSetNodeID ID;
+ CodeTextRegion::ProfileRegion(ID, sym, t);
+ void* InsertPos;
+ MemRegion* data = Regions.FindNodeOrInsertPos(ID, InsertPos);
+ CodeTextRegion* R = cast_or_null<CodeTextRegion>(data);
+
+ if (!R) {
+ R = (CodeTextRegion*) A.Allocate<CodeTextRegion>();
+ new (R) CodeTextRegion(sym, t, getCodeRegion());
+ Regions.InsertNode(R, InsertPos);
+ }
+
+ return R;
+}
+
/// getSymbolicRegion - Retrieve or create a "symbolic" memory region.
SymbolicRegion* MemRegionManager::getSymbolicRegion(SymbolRef sym) {
llvm::FoldingSetNodeID ID;