summaryrefslogtreecommitdiffstats
path: root/lib/Transforms/Scalar/CondPropagate.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Transforms/Scalar/CondPropagate.cpp')
-rw-r--r--lib/Transforms/Scalar/CondPropagate.cpp12
1 files changed, 2 insertions, 10 deletions
diff --git a/lib/Transforms/Scalar/CondPropagate.cpp b/lib/Transforms/Scalar/CondPropagate.cpp
index c85d031..5b573f4 100644
--- a/lib/Transforms/Scalar/CondPropagate.cpp
+++ b/lib/Transforms/Scalar/CondPropagate.cpp
@@ -14,26 +14,21 @@
#define DEBUG_TYPE "condprop"
#include "llvm/Transforms/Scalar.h"
-#include "llvm/Constants.h"
-#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Pass.h"
#include "llvm/Type.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/Local.h"
-#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/Streams.h"
using namespace llvm;
STATISTIC(NumBrThread, "Number of CFG edges threaded through branches");
STATISTIC(NumSwThread, "Number of CFG edges threaded through switches");
namespace {
- struct VISIBILITY_HIDDEN CondProp : public FunctionPass {
+ struct CondProp : public FunctionPass {
static char ID; // Pass identification, replacement for typeid
CondProp() : FunctionPass(&ID) {}
@@ -124,7 +119,7 @@ void CondProp::SimplifyBlock(BasicBlock *BB) {
// Succ is now dead, but we cannot delete it without potentially
// invalidating iterators elsewhere. Just insert an unreachable
// instruction in it and delete this block later on.
- new UnreachableInst(Succ);
+ new UnreachableInst(BB->getContext(), Succ);
DeadBlocks.push_back(Succ);
MadeChange = true;
}
@@ -196,8 +191,6 @@ void CondProp::SimplifyPredecessors(SwitchInst *SI) {
if (&*BBI != SI)
return;
- bool RemovedPreds = false;
-
// Ok, we have this really simple case, walk the PHI operands, looking for
// constants. Walk from the end to remove operands from the end when
// possible, and to avoid invalidating "i".
@@ -209,7 +202,6 @@ void CondProp::SimplifyPredecessors(SwitchInst *SI) {
RevectorBlockTo(PN->getIncomingBlock(i-1),
SI->getSuccessor(DestCase));
++NumSwThread;
- RemovedPreds = true;
// If there were two predecessors before this simplification, or if the
// PHI node contained all the same value except for the one we just
OpenPOWER on IntegriCloud