[LoopStrengthReduce] Don't bother fixing up PHIs from EH Pad preds

[oota-llvm.git] / lib / Analysis / CodeMetrics.cpp

diff --git a/lib/Analysis/CodeMetrics.cpp b/lib/Analysis/CodeMetrics.cpp
index fa5683c6820df9d4ebafa82878bd46130134b39c..4090b4cd752b64113ba10d6ee32f28744d07517c 100644 (file)
--- a/lib/Analysis/CodeMetrics.cpp
+++ b/lib/Analysis/CodeMetrics.cpp
@@ -21,6 +21,7 @@
 #include "llvm/IR/Function.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
 
 #define DEBUG_TYPE "code-metrics"
 
@@ -44,14 +45,8 @@ static void completeEphemeralValues(SmallVector<const Value *, 16> &WorkSet,
       continue;
 
     // If all uses of this value are ephemeral, then so is this value.
-    bool FoundNEUse = false;
-    for (const User *I : V->users())
-      if (!EphValues.count(I)) {
-        FoundNEUse = true;
-        break;
-      }
-
-    if (FoundNEUse)
+    if (!std::all_of(V->user_begin(), V->user_end(),
+                     [&](const User *U) { return EphValues.count(U); }))
       continue;
 
     EphValues.insert(V);
@@ -115,7 +110,7 @@ void CodeMetrics::analyzeBasicBlock(const BasicBlock *BB,
   for (BasicBlock::const_iterator II = BB->begin(), E = BB->end();
        II != E; ++II) {
     // Skip ephemeral values.
-    if (EphValues.count(II))
+    if (EphValues.count(&*II))
       continue;
 
     // Special handling for calls.
@@ -154,6 +149,9 @@ void CodeMetrics::analyzeBasicBlock(const BasicBlock *BB,
     if (isa<ExtractElementInst>(II) || II->getType()->isVectorTy())
       ++NumVectorInsts;
 
+    if (II->getType()->isTokenTy() && II->isUsedOutsideOfBlock(BB))
+      notDuplicatable = true;
+
     if (const CallInst *CI = dyn_cast<CallInst>(II))
       if (CI->cannotDuplicate())
         notDuplicatable = true;