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NewGVN: Change a bunch of densemap find_or_creates to lookups, since they should not be creating new entries

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292059 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Berlin 2017-01-15 09:18:41 +00:00
parent d97514d79a
commit c110f9b676
1 changed files with 8 additions and 8 deletions
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16
lib/Transforms/Scalar/NewGVN.cpp
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@ -1038,16 +1038,16 @@ void NewGVN::markUsersTouched(Value *V) {
// Now mark the users as touched.
for (auto *User : V->users()) {
assert(isa<Instruction>(User) && "Use of value not within an instruction?");
TouchedInstructions.set(InstrDFS[User]);
TouchedInstructions.set(InstrDFS.lookup(User));
}
}
void NewGVN::markMemoryUsersTouched(MemoryAccess *MA) {
for (auto U : MA->users()) {
if (auto *MUD = dyn_cast<MemoryUseOrDef>(U))
TouchedInstructions.set(InstrDFS[MUD->getMemoryInst()]);
TouchedInstructions.set(InstrDFS.lookup(MUD->getMemoryInst()));
else
TouchedInstructions.set(InstrDFS[U]);
TouchedInstructions.set(InstrDFS.lookup(U));
}
}
@ -1056,7 +1056,7 @@ void NewGVN::markMemoryUsersTouched(MemoryAccess *MA) {
void NewGVN::markLeaderChangeTouched(CongruenceClass *CC) {
for (auto M : CC->Members) {
if (auto *I = dyn_cast<Instruction>(M))
TouchedInstructions.set(InstrDFS[I]);
TouchedInstructions.set(InstrDFS.lookup(I));
LeaderChanges.insert(M);
}
}
@ -1260,11 +1260,11 @@ void NewGVN::updateReachableEdge(BasicBlock *From, BasicBlock *To) {
// they are the only thing that depend on new edges. Anything using their
// values will get propagated to if necessary.
if (MemoryAccess *MemPhi = MSSA->getMemoryAccess(To))
TouchedInstructions.set(InstrDFS[MemPhi]);
TouchedInstructions.set(InstrDFS.lookup(MemPhi));
auto BI = To->begin();
while (isa<PHINode>(BI)) {
TouchedInstructions.set(InstrDFS[&*BI]);
TouchedInstructions.set(InstrDFS.lookup(&*BI));
++BI;
}
}
@ -1891,7 +1891,7 @@ void NewGVN::convertDenseToDFSOrdered(
VD.Val = D;
// If it's an instruction, use the real local dfs number.
if (auto *I = dyn_cast<Instruction>(D))
VD.LocalNum = InstrDFS[I];
VD.LocalNum = InstrDFS.lookup(I);
else
llvm_unreachable("Should have been an instruction");
@ -1910,7 +1910,7 @@ void NewGVN::convertDenseToDFSOrdered(
VD.LocalNum = InstrDFS.size() + 1;
} else {
IBlock = I->getParent();
VD.LocalNum = InstrDFS[I];
VD.LocalNum = InstrDFS.lookup(I);
}
DomTreeNode *DomNode = DT->getNode(IBlock);
VD.DFSIn = DomNode->getDFSNumIn();