Try again to disable critical edge splitting in CodeGenPrepare.
The bug that broke i386 linux has been fixed in r115191.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115204 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp
index 3221e14..880a4e5 100644
--- a/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -31,6 +31,7 @@
#include "llvm/Transforms/Utils/BuildLibCalls.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallSet.h"
+#include "llvm/ADT/Statistic.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/CommandLine.h"
@@ -42,10 +43,12 @@
using namespace llvm;
using namespace llvm::PatternMatch;
+STATISTIC(NumElim, "Number of blocks eliminated");
+
static cl::opt<bool>
CriticalEdgeSplit("cgp-critical-edge-splitting",
cl::desc("Split critical edges during codegen prepare"),
- cl::init(true), cl::Hidden);
+ cl::init(false), cl::Hidden);
namespace {
class CodeGenPrepare : public FunctionPass {
@@ -302,6 +305,7 @@
PFI->removeEdge(ProfileInfo::getEdge(BB, DestBB));
}
BB->eraseFromParent();
+ ++NumElim;
DEBUG(dbgs() << "AFTER:\n" << *DestBB << "\n\n\n");
}