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improve encapsulation of the BBExecutable set.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55271 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-08-23 23:39:31 +00:00
parent cf712dee93
commit 7eb01bfc16
1 changed files with 4 additions and 8 deletions
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12
lib/Transforms/Scalar/SCCP.cpp
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@ -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;