Revert r124462. There are a few big regressions that I need to fix first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124478 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index 37e6d28..f6d7d76 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -28,7 +28,6 @@
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/CFG.h"
-#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ConstantRange.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
@@ -37,10 +36,6 @@
#include <map>
using namespace llvm;
-static cl::opt<bool>
-DupRet("simplifycfg-dup-ret", cl::Hidden, cl::init(false),
- cl::desc("Duplicate return instructions into unconditional branches"));
-
STATISTIC(NumSpeculations, "Number of speculative executed instructions");
namespace {
@@ -2032,7 +2027,7 @@
}
// If we found some, do the transformation!
- if (!UncondBranchPreds.empty() && DupRet) {
+ if (!UncondBranchPreds.empty()) {
while (!UncondBranchPreds.empty()) {
BasicBlock *Pred = UncondBranchPreds.pop_back_val();
DEBUG(dbgs() << "FOLDING: " << *BB