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[VPlan] Use MapVector for LiveOuts for deterministic iteration. 

During code-gen, we iterate over the LiveOuts and the differences in
iteration order can cause slightly different outputs.
This commit is contained in:
Florian Hahn 2022-05-25 09:29:52 +01:00
parent 7af89a379c
commit 1ba42dd04b
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GPG Key ID: EEF712BB5E80EBBA
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Transforms/Vectorize/VPlan.h
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@ -30,6 +30,7 @@
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/GraphTraits.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallBitVector.h"
#include "llvm/ADT/SmallPtrSet.h"
@ -2513,7 +2514,7 @@ class VPlan {
bool Value2VPValueEnabled = true;
/// Values used outside the plan.
DenseMap<PHINode *, VPLiveOut *> LiveOuts;
MapVector<PHINode *, VPLiveOut *> LiveOuts;
public:
VPlan(VPBlockBase *Entry = nullptr) : Entry(Entry) {
@ -2705,7 +2706,7 @@ public:
LiveOuts.erase(PN);
}
const DenseMap<PHINode *, VPLiveOut *> &getLiveOuts() const {
const MapVector<PHINode *, VPLiveOut *> &getLiveOuts() const {
return LiveOuts;
}