Remove more uses of std::set.
llvm-svn: 54787
diff --git a/llvm/lib/CodeGen/UnreachableBlockElim.cpp b/llvm/lib/CodeGen/UnreachableBlockElim.cpp
index 152f2f8..7bf95bf 100644
--- a/llvm/lib/CodeGen/UnreachableBlockElim.cpp
+++ b/llvm/lib/CodeGen/UnreachableBlockElim.cpp
@@ -32,6 +32,7 @@
#include "llvm/Support/Compiler.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/ADT/DepthFirstIterator.h"
+#include "llvm/ADT/SmallPtrSet.h"
using namespace llvm;
namespace {
@@ -51,11 +52,11 @@
}
bool UnreachableBlockElim::runOnFunction(Function &F) {
- std::set<BasicBlock*> Reachable;
+ SmallPtrSet<BasicBlock*, 8> Reachable;
// Mark all reachable blocks.
- for (df_ext_iterator<Function*> I = df_ext_begin(&F, Reachable),
- E = df_ext_end(&F, Reachable); I != E; ++I)
+ for (df_ext_iterator<Function*, SmallPtrSet<BasicBlock*, 8> > I =
+ df_ext_begin(&F, Reachable), E = df_ext_end(&F, Reachable); I != E; ++I)
/* Mark all reachable blocks */;
// Loop over all dead blocks, remembering them and deleting all instructions
@@ -101,11 +102,12 @@
const PassInfo *const llvm::UnreachableMachineBlockElimID = &Y;
bool UnreachableMachineBlockElim::runOnMachineFunction(MachineFunction &F) {
- std::set<MachineBasicBlock*> Reachable;
+ SmallPtrSet<MachineBasicBlock*, 8> Reachable;
// Mark all reachable blocks.
- for (df_ext_iterator<MachineFunction*> I = df_ext_begin(&F, Reachable),
- E = df_ext_end(&F, Reachable); I != E; ++I)
+ for (df_ext_iterator<MachineFunction*, SmallPtrSet<MachineBasicBlock*, 8> >
+ I = df_ext_begin(&F, Reachable), E = df_ext_end(&F, Reachable);
+ I != E; ++I)
/* Mark all reachable blocks */;
// Loop over all dead blocks, remembering them and deleting all instructions