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-rw-r--r--lib/Transforms/Scalar/SCCP.cpp12
1 files changed, 4 insertions, 8 deletions
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index e299950b8d..ed0f727ecd 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -224,10 +224,8 @@ public:
/// should be rerun.
bool ResolvedUndefsIn(Function &F);
- /// getExecutableBlocks - Once we have solved for constants, return the set of
- /// blocks that is known to be executable.
- DenseSet<BasicBlock*> &getExecutableBlocks() {
- return BBExecutable;
+ bool isBlockExecutable(BasicBlock *BB) const {
+ return BBExecutable.count(BB);
}
/// getValueMapping - Once we have solved for constants, return the mapping of
@@ -1550,12 +1548,11 @@ bool SCCP::runOnFunction(Function &F) {
// delete their contents now. Note that we cannot actually delete the blocks,
// as we cannot modify the CFG of the function.
//
- DenseSet<BasicBlock*> &ExecutableBBs = Solver.getExecutableBlocks();
SmallVector<Instruction*, 512> Insts;
std::map<Value*, LatticeVal> &Values = Solver.getValueMapping();
for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
- if (!ExecutableBBs.count(BB)) {
+ if (!Solver.isBlockExecutable(BB)) {
DOUT << " BasicBlock Dead:" << *BB;
++NumDeadBlocks;
@@ -1695,7 +1692,6 @@ bool IPSCCP::runOnModule(Module &M) {
// Iterate over all of the instructions in the module, replacing them with
// constants if we have found them to be of constant values.
//
- DenseSet<BasicBlock*> &ExecutableBBs = Solver.getExecutableBlocks();
SmallVector<Instruction*, 512> Insts;
SmallVector<BasicBlock*, 512> BlocksToErase;
std::map<Value*, LatticeVal> &Values = Solver.getValueMapping();
@@ -1718,7 +1714,7 @@ bool IPSCCP::runOnModule(Module &M) {
}
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB)
- if (!ExecutableBBs.count(BB)) {
+ if (!Solver.isBlockExecutable(BB)) {
DOUT << " BasicBlock Dead:" << *BB;
++IPNumDeadBlocks;