[PATCH] D48407: ProvenanceAnalysis: Store WeakTrackingVH instead of Value* in UnderlyingValue Cache.
Michael Zolotukhin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 20 22:18:40 PDT 2018
This revision was automatically updated to reflect the committed changes.
Closed by commit rL335201: ProvenanceAnalysis: Store WeakTrackingVH instead of Value* in UnderlyingValue… (authored by mzolotukhin, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D48407?vs=152201&id=152223#toc
Repository:
rL LLVM
https://reviews.llvm.org/D48407
Files:
llvm/trunk/include/llvm/Analysis/ObjCARCAnalysisUtils.h
llvm/trunk/lib/Transforms/ObjCARC/ProvenanceAnalysis.h
Index: llvm/trunk/include/llvm/Analysis/ObjCARCAnalysisUtils.h
===================================================================
--- llvm/trunk/include/llvm/Analysis/ObjCARCAnalysisUtils.h
+++ llvm/trunk/include/llvm/Analysis/ObjCARCAnalysisUtils.h
@@ -34,6 +34,7 @@
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
+#include "llvm/IR/ValueHandle.h"
#include "llvm/Pass.h"
namespace llvm {
@@ -89,11 +90,13 @@
/// A wrapper for GetUnderlyingObjCPtr used for results memoization.
inline const Value *
GetUnderlyingObjCPtrCached(const Value *V, const DataLayout &DL,
- DenseMap<const Value *, const Value *> &Cache) {
+ DenseMap<const Value *, WeakTrackingVH> &Cache) {
if (auto InCache = Cache.lookup(V))
return InCache;
- return Cache[V] = GetUnderlyingObjCPtr(V, DL);
+ const Value *Computed = GetUnderlyingObjCPtr(V, DL);
+ Cache[V] = const_cast<Value *>(Computed);
+ return Computed;
}
/// The RCIdentity root of a value \p V is a dominating value U for which
Index: llvm/trunk/lib/Transforms/ObjCARC/ProvenanceAnalysis.h
===================================================================
--- llvm/trunk/lib/Transforms/ObjCARC/ProvenanceAnalysis.h
+++ llvm/trunk/lib/Transforms/ObjCARC/ProvenanceAnalysis.h
@@ -28,6 +28,7 @@
#include "llvm/ADT/DenseMap.h"
#include "llvm/Analysis/AliasAnalysis.h"
+#include "llvm/IR/ValueHandle.h"
#include <utility>
namespace llvm {
@@ -56,7 +57,7 @@
CachedResultsTy CachedResults;
- DenseMap<const Value *, const Value *> UnderlyingObjCPtrCache;
+ DenseMap<const Value *, WeakTrackingVH> UnderlyingObjCPtrCache;
bool relatedCheck(const Value *A, const Value *B, const DataLayout &DL);
bool relatedSelect(const SelectInst *A, const Value *B);
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