From 08bbd35a80bf7765fe0d3043f9eb5a2f2786b649 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 26 Jun 2017 20:32:52 +0000
Subject: Vendor import of llvm trunk r306325:
 https://llvm.org/svn/llvm-project/llvm/trunk@306325

---
 lib/Transforms/IPO/PassManagerBuilder.cpp | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

(limited to 'lib/Transforms/IPO/PassManagerBuilder.cpp')

diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 4bc64ab698ff..087a8aa2c624 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -72,10 +72,6 @@ static cl::opt<bool>
 RunLoopRerolling("reroll-loops", cl::Hidden,
                  cl::desc("Run the loop rerolling pass"));
 
-static cl::opt<bool> RunLoadCombine("combine-loads", cl::init(false),
-                                    cl::Hidden,
-                                    cl::desc("Run the load combining pass"));
-
 static cl::opt<bool> RunNewGVN("enable-newgvn", cl::init(false), cl::Hidden,
                                cl::desc("Run the NewGVN pass"));
 
@@ -174,7 +170,6 @@ PassManagerBuilder::PassManagerBuilder() {
     SLPVectorize = RunSLPVectorization;
     LoopVectorize = RunLoopVectorization;
     RerollLoops = RunLoopRerolling;
-    LoadCombine = RunLoadCombine;
     NewGVN = RunNewGVN;
     DisableGVNLoadPRE = false;
     VerifyInput = false;
@@ -296,6 +291,8 @@ void PassManagerBuilder::addPGOInstrPasses(legacy::PassManagerBase &MPM) {
     InstrProfOptions Options;
     if (!PGOInstrGen.empty())
       Options.InstrProfileOutput = PGOInstrGen;
+    Options.DoCounterPromotion = true;
+    MPM.add(createLoopRotatePass());
     MPM.add(createInstrProfilingLegacyPass(Options));
   }
   if (!PGOInstrUse.empty())
@@ -407,9 +404,6 @@ void PassManagerBuilder::addFunctionSimplificationPasses(
     }
   }
 
-  if (LoadCombine)
-    MPM.add(createLoadCombinePass());
-
   MPM.add(createAggressiveDCEPass());         // Delete dead instructions
   MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
   // Clean up after everything.
@@ -850,9 +844,6 @@ void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
   // alignments.
   PM.add(createAlignmentFromAssumptionsPass());
 
-  if (LoadCombine)
-    PM.add(createLoadCombinePass());
-
   // Cleanup and simplify the code after the scalar optimizations.
   addInstructionCombiningPass(PM);
   addExtensionsToPM(EP_Peephole, PM);
-- 
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