New pass manager for LICM.

Summary: Port LICM to the new pass manager.

Reviewers: davidxl, silvas

Subscribers: silvas, davide, sanjoy, llvm-commits, mehdi_amini

Differential Revision: http://reviews.llvm.org/D21772

llvm-svn: 275118

llvm/include/llvm/InitializePasses.h

@@ -159,7 +159,7 @@ void initializeInternalizeLegacyPassPass(PassRegistry&);
 void initializeIntervalPartitionPass(PassRegistry&);
 void initializeJumpThreadingPass(PassRegistry&);
 void initializeLCSSAWrapperPassPass(PassRegistry &);
-void initializeLICMPass(PassRegistry&);
+void initializeLegacyLICMPassPass(PassRegistry&);
 void initializeLazyValueInfoWrapperPassPass(PassRegistry&);
 void initializeLintPass(PassRegistry&);
 void initializeLiveDebugValuesPass(PassRegistry&);

llvm/include/llvm/Transforms/Scalar/LICM.h

@@ -0,0 +1,48 @@
+//===- LICM.h - Loop Invariant Code Motion Pass -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This pass performs loop invariant code motion, attempting to remove as much
+// code from the body of a loop as possible.  It does this by either hoisting
+// code into the preheader block, or by sinking code to the exit blocks if it is
+// safe.  This pass also promotes must-aliased memory locations in the loop to
+// live in registers, thus hoisting and sinking "invariant" loads and stores.
+//
+// This pass uses alias analysis for two purposes:
+//
+//  1. Moving loop invariant loads and calls out of loops.  If we can determine
+//     that a load or call inside of a loop never aliases anything stored to,
+//     we can hoist it or sink it like any other instruction.
+//  2. Scalar Promotion of Memory - If there is a store instruction inside of
+//     the loop, we try to move the store to happen AFTER the loop instead of
+//     inside of the loop.  This can only happen if a few conditions are true:
+//       A. The pointer stored through is loop invariant
+//       B. There are no stores or loads in the loop which _may_ alias the
+//          pointer.  There are no calls in the loop which mod/ref the pointer.
+//     If these conditions are true, we can promote the loads and stores in the
+//     loop of the pointer to use a temporary alloca'd variable.  We then use
+//     the SSAUpdater to construct the appropriate SSA form for the value.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_SCALAR_LICM_H
+#define LLVM_TRANSFORMS_SCALAR_LICM_H
+
+#include "llvm/Analysis/LoopInfo.h"
+#include "llvm/IR/PassManager.h"
+
+namespace llvm {
+
+/// Performs Loop Invariant Code Motion Pass.
+class LICMPass : public PassInfoMixin<LICMPass> {
+public:
+  PreservedAnalyses run(Loop &L, AnalysisManager<Loop> &AM);
+};
+} // end namespace llvm
+
+#endif // LLVM_TRANSFORMS_SCALAR_LICM_H

llvm/lib/LTO/LTOCodeGenerator.cpp

@@ -122,7 +122,7 @@ void LTOCodeGenerator::initializeLTOPasses() {
   initializePostOrderFunctionAttrsLegacyPassPass(R);
   initializeReversePostOrderFunctionAttrsLegacyPassPass(R);
   initializeGlobalsAAWrapperPassPass(R);
-  initializeLICMPass(R);
+  initializeLegacyLICMPassPass(R);
   initializeMergedLoadStoreMotionLegacyPassPass(R);
   initializeGVNLegacyPassPass(R);
   initializeMemCpyOptLegacyPassPass(R);

llvm/lib/Passes/PassBuilder.cpp

@@ -88,6 +88,7 @@
 #include "llvm/Transforms/Scalar/GuardWidening.h"
 #include "llvm/Transforms/Scalar/IndVarSimplify.h"
 #include "llvm/Transforms/Scalar/JumpThreading.h"
+#include "llvm/Transforms/Scalar/LICM.h"
 #include "llvm/Transforms/Scalar/LoopRotation.h"
 #include "llvm/Transforms/Scalar/LoopSimplifyCFG.h"
 #include "llvm/Transforms/Scalar/LowerAtomic.h"

llvm/lib/Passes/PassRegistry.def

@@ -187,6 +187,7 @@ LOOP_ANALYSIS("access-info", LoopAccessAnalysis())
 #define LOOP_PASS(NAME, CREATE_PASS)
 #endif
 LOOP_PASS("invalidate<all>", InvalidateAllAnalysesPass())
+LOOP_PASS("licm", LICMPass())
 LOOP_PASS("rotate", LoopRotatePass())
 LOOP_PASS("no-op-loop", NoOpLoopPass())
 LOOP_PASS("print", PrintLoopPass(dbgs()))

llvm/lib/Transforms/Scalar/LICM.cpp

@@ -30,6 +30,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Transforms/Scalar/LICM.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/AliasSetTracker.h"
@@ -40,6 +41,7 @@
 #include "llvm/Analysis/Loads.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/LoopPass.h"
+#include "llvm/Analysis/LoopPassManager.h"
 #include "llvm/Analysis/MemoryBuiltins.h"
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/Analysis/ScalarEvolutionAliasAnalysis.h"
@@ -104,13 +106,39 @@ static bool canSinkOrHoistInst(Instruction &I, AliasAnalysis *AA,
                                LoopSafetyInfo *SafetyInfo);
 
 namespace {
-struct LICM : public LoopPass {
-  static char ID; // Pass identification, replacement for typeid
-  LICM() : LoopPass(ID) {
-    initializeLICMPass(*PassRegistry::getPassRegistry());
+struct LoopInvariantCodeMotion {
+  bool runOnLoop(Loop *L, AliasAnalysis *AA, LoopInfo *LI, DominatorTree *DT,
+                 TargetLibraryInfo *TLI, ScalarEvolution *SE);
+
+  DenseMap<Loop *, AliasSetTracker *> &getLoopToAliasSetMap() {
+    return LoopToAliasSetMap;
   }
 
-  bool runOnLoop(Loop *L, LPPassManager &LPM) override;
+private:
+  DenseMap<Loop *, AliasSetTracker *> LoopToAliasSetMap;
+
+  AliasSetTracker *collectAliasInfoForLoop(Loop *L, LoopInfo *LI,
+                                           AliasAnalysis *AA);
+};
+
+struct LegacyLICMPass : public LoopPass {
+  static char ID; // Pass identification, replacement for typeid
+  LegacyLICMPass() : LoopPass(ID) {
+    initializeLegacyLICMPassPass(*PassRegistry::getPassRegistry());
+  }
+
+  bool runOnLoop(Loop *L, LPPassManager &LPM) override {
+    if (skipLoop(L))
+      return false;
+
+    auto *SE = getAnalysisIfAvailable<ScalarEvolutionWrapperPass>();
+    return LICM.runOnLoop(L,
+                          &getAnalysis<AAResultsWrapperPass>().getAAResults(),
+                          &getAnalysis<LoopInfoWrapperPass>().getLoopInfo(),
+                          &getAnalysis<DominatorTreeWrapperPass>().getDomTree(),
+                          &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI(),
+                          SE ? &SE->getSE() : nullptr);
+  }
 
   /// This transformation requires natural loop information & requires that
   /// loop preheaders be inserted into the CFG...
@@ -124,23 +152,13 @@ struct LICM : public LoopPass {
   using llvm::Pass::doFinalization;
 
   bool doFinalization() override {
-    assert(LoopToAliasSetMap.empty() && "Didn't free loop alias sets");
+    assert(LICM.getLoopToAliasSetMap().empty() &&
+           "Didn't free loop alias sets");
     return false;
   }
 
 private:
-  AliasAnalysis *AA; // Current AliasAnalysis information
-  LoopInfo *LI;      // Current LoopInfo
-  DominatorTree *DT; // Dominator Tree for the current Loop.
-
-  TargetLibraryInfo *TLI; // TargetLibraryInfo for constant folding.
-
-  // State that is updated as we process loops.
-  bool Changed;            // Set to true when we change anything.
-  BasicBlock *Preheader;   // The preheader block of the current loop...
-  Loop *CurLoop;           // The current loop we are working on...
-  AliasSetTracker *CurAST; // AliasSet information for the current loop...
-  DenseMap<Loop *, AliasSetTracker *> LoopToAliasSetMap;
+  LoopInvariantCodeMotion LICM;
 
   /// cloneBasicBlockAnalysis - Simple Analysis hook. Clone alias set info.
   void cloneBasicBlockAnalysis(BasicBlock *From, BasicBlock *To,
@@ -152,48 +170,63 @@ private:
 
   /// Simple Analysis hook. Delete loop L from alias set map.
   void deleteAnalysisLoop(Loop *L) override;
-
-  AliasSetTracker *collectAliasInfoForLoop(Loop *L);
 };
 }
 
-char LICM::ID = 0;
-INITIALIZE_PASS_BEGIN(LICM, "licm", "Loop Invariant Code Motion", false, false)
+PreservedAnalyses LICMPass::run(Loop &L, AnalysisManager<Loop> &AM) {
+  // FIXME: Check if loop should be skipped.
+
+  const auto &FAM =
+      AM.getResult<FunctionAnalysisManagerLoopProxy>(L).getManager();
+  Function *F = L.getHeader()->getParent();
+
+  auto *AA = FAM.getCachedResult<AAManager>(*F);
+  auto *LI = FAM.getCachedResult<LoopAnalysis>(*F);
+  auto *DT = FAM.getCachedResult<DominatorTreeAnalysis>(*F);
+  auto *TLI = FAM.getCachedResult<TargetLibraryAnalysis>(*F);
+  auto *SE = FAM.getCachedResult<ScalarEvolutionAnalysis>(*F);
+  assert((AA && LI && DT && TLI && SE) && "Analyses for LICM not available");
+
+  LoopInvariantCodeMotion LICM;
+
+  if (!LICM.runOnLoop(&L, AA, LI, DT, TLI, SE))
+    return PreservedAnalyses::all();
+
+  // FIXME: There is no setPreservesCFG in the new PM. When that becomes
+  // available, it should be used here.
+  return getLoopPassPreservedAnalyses();
+}
+
+char LegacyLICMPass::ID = 0;
+INITIALIZE_PASS_BEGIN(LegacyLICMPass, "licm", "Loop Invariant Code Motion",
+                      false, false)
 INITIALIZE_PASS_DEPENDENCY(LoopPass)
 INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
-INITIALIZE_PASS_END(LICM, "licm", "Loop Invariant Code Motion", false, false)
+INITIALIZE_PASS_END(LegacyLICMPass, "licm", "Loop Invariant Code Motion", false,
+                    false)
 
-Pass *llvm::createLICMPass() { return new LICM(); }
+Pass *llvm::createLICMPass() { return new LegacyLICMPass(); }
 
 /// Hoist expressions out of the specified loop. Note, alias info for inner
 /// loop is not preserved so it is not a good idea to run LICM multiple
 /// times on one loop.
 ///
-bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
-  if (skipLoop(L))
-    return false;
-
-  Changed = false;
-
-  // Get our Loop and Alias Analysis information...
-  LI = &getAnalysis<LoopInfoWrapperPass>().getLoopInfo();
-  AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
-  DT = &getAnalysis<DominatorTreeWrapperPass>().getDomTree();
-
-  TLI = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
+bool LoopInvariantCodeMotion::runOnLoop(Loop *L, AliasAnalysis *AA,
+                                        LoopInfo *LI, DominatorTree *DT,
+                                        TargetLibraryInfo *TLI,
+                                        ScalarEvolution *SE) {
+  bool Changed = false;
 
   assert(L->isLCSSAForm(*DT) && "Loop is not in LCSSA form.");
 
-  CurAST = collectAliasInfoForLoop(L);
-
-  CurLoop = L;
+  AliasSetTracker *CurAST = collectAliasInfoForLoop(L, LI, AA);
 
   // Get the preheader block to move instructions into...
-  Preheader = L->getLoopPreheader();
+  BasicBlock *Preheader = L->getLoopPreheader();
 
   // Compute loop safety information.
   LoopSafetyInfo SafetyInfo;
-  computeLoopSafetyInfo(&SafetyInfo, CurLoop);
+  computeLoopSafetyInfo(&SafetyInfo, L);
 
   // We want to visit all of the instructions in this loop... that are not parts
   // of our subloops (they have already had their invariants hoisted out of
@@ -206,11 +239,11 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
   // instructions, we perform another pass to hoist them out of the loop.
   //
   if (L->hasDedicatedExits())
-    Changed |= sinkRegion(DT->getNode(L->getHeader()), AA, LI, DT, TLI, CurLoop,
+    Changed |= sinkRegion(DT->getNode(L->getHeader()), AA, LI, DT, TLI, L,
                           CurAST, &SafetyInfo);
   if (Preheader)
-    Changed |= hoistRegion(DT->getNode(L->getHeader()), AA, LI, DT, TLI,
-                           CurLoop, CurAST, &SafetyInfo);
+    Changed |= hoistRegion(DT->getNode(L->getHeader()), AA, LI, DT, TLI, L,
+                           CurAST, &SafetyInfo);
 
   // Now that all loop invariants have been removed from the loop, promote any
   // memory references to scalars that we can.
@@ -221,9 +254,8 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
 
     // Loop over all of the alias sets in the tracker object.
     for (AliasSet &AS : *CurAST)
-      Changed |=
-          promoteLoopAccessesToScalars(AS, ExitBlocks, InsertPts, PIC, LI, DT,
-                                       TLI, CurLoop, CurAST, &SafetyInfo);
+      Changed |= promoteLoopAccessesToScalars(
+          AS, ExitBlocks, InsertPts, PIC, LI, DT, TLI, L, CurAST, &SafetyInfo);
 
     // Once we have promoted values across the loop body we have to recursively
     // reform LCSSA as any nested loop may now have values defined within the
@@ -232,8 +264,7 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
     // SSAUpdater strategy during promotion that was LCSSA aware and reformed
     // it as it went.
     if (Changed) {
-      auto *SEWP = getAnalysisIfAvailable<ScalarEvolutionWrapperPass>();
-      formLCSSARecursively(*L, *DT, LI, SEWP ? &SEWP->getSE() : nullptr);
+      formLCSSARecursively(*L, *DT, LI, SE);
     }
   }
 
@@ -244,10 +275,6 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
   assert((!L->getParentLoop() || L->getParentLoop()->isLCSSAForm(*DT)) &&
          "Parent loop not left in LCSSA form after LICM!");
 
-  // Clear out loops state information for the next iteration
-  CurLoop = nullptr;
-  Preheader = nullptr;
-
   // If this loop is nested inside of another one, save the alias information
   // for when we process the outer loop.
   if (L->getParentLoop())
@@ -255,9 +282,8 @@ bool LICM::runOnLoop(Loop *L, LPPassManager &LPM) {
   else
     delete CurAST;
 
-  if (Changed)
-    if (auto *SEWP = getAnalysisIfAvailable<ScalarEvolutionWrapperPass>())
-      SEWP->getSE().forgetLoopDispositions(L);
+  if (Changed && SE)
+    SE->forgetLoopDispositions(L);
   return Changed;
 }
 
@@ -387,7 +413,8 @@ void llvm::computeLoopSafetyInfo(LoopSafetyInfo *SafetyInfo, Loop *CurLoop) {
   // Iterate over header and compute safety info.
   for (BasicBlock::iterator I = Header->begin(), E = Header->end();
        (I != E) && !SafetyInfo->HeaderMayThrow; ++I)
-    SafetyInfo->HeaderMayThrow |= !isGuaranteedToTransferExecutionToSuccessor(&*I);
+    SafetyInfo->HeaderMayThrow |=
+        !isGuaranteedToTransferExecutionToSuccessor(&*I);
 
   SafetyInfo->MayThrow = SafetyInfo->HeaderMayThrow;
   // Iterate over loop instructions and compute safety info.
@@ -1042,7 +1069,13 @@ bool llvm::promoteLoopAccessesToScalars(
 
 /// Returns an owning pointer to an alias set which incorporates aliasing info
 /// from L and all subloops of L.
-AliasSetTracker *LICM::collectAliasInfoForLoop(Loop *L) {
+/// FIXME: In new pass manager, there is no helper functions to handle loop
+/// analysis such as cloneBasicBlockAnalysis. So the AST needs to be recompute
+/// from scratch for every loop. Hook up with the helper functions when
+/// available in the new pass manager to avoid redundant computation.
+AliasSetTracker *
+LoopInvariantCodeMotion::collectAliasInfoForLoop(Loop *L, LoopInfo *LI,
+                                                 AliasAnalysis *AA) {
   AliasSetTracker *CurAST = nullptr;
   SmallVector<Loop *, 4> RecomputeLoops;
   for (Loop *InnerL : L->getSubLoops()) {
@@ -1092,8 +1125,9 @@ AliasSetTracker *LICM::collectAliasInfoForLoop(Loop *L) {
 
 /// Simple analysis hook. Clone alias set info.
 ///
-void LICM::cloneBasicBlockAnalysis(BasicBlock *From, BasicBlock *To, Loop *L) {
-  AliasSetTracker *AST = LoopToAliasSetMap.lookup(L);
+void LegacyLICMPass::cloneBasicBlockAnalysis(BasicBlock *From, BasicBlock *To,
+                                             Loop *L) {
+  AliasSetTracker *AST = LICM.getLoopToAliasSetMap().lookup(L);
   if (!AST)
     return;
 
@@ -1102,8 +1136,8 @@ void LICM::cloneBasicBlockAnalysis(BasicBlock *From, BasicBlock *To, Loop *L) {
 
 /// Simple Analysis hook. Delete value V from alias set
 ///
-void LICM::deleteAnalysisValue(Value *V, Loop *L) {
-  AliasSetTracker *AST = LoopToAliasSetMap.lookup(L);
+void LegacyLICMPass::deleteAnalysisValue(Value *V, Loop *L) {
+  AliasSetTracker *AST = LICM.getLoopToAliasSetMap().lookup(L);
   if (!AST)
     return;
 
@@ -1112,13 +1146,13 @@ void LICM::deleteAnalysisValue(Value *V, Loop *L) {
 
 /// Simple Analysis hook. Delete value L from alias set map.
 ///
-void LICM::deleteAnalysisLoop(Loop *L) {
-  AliasSetTracker *AST = LoopToAliasSetMap.lookup(L);
+void LegacyLICMPass::deleteAnalysisLoop(Loop *L) {
+  AliasSetTracker *AST = LICM.getLoopToAliasSetMap().lookup(L);
   if (!AST)
     return;
 
   delete AST;
-  LoopToAliasSetMap.erase(L);
+  LICM.getLoopToAliasSetMap().erase(L);
 }
 
 /// Return true if the body of this loop may store into the memory

llvm/lib/Transforms/Scalar/Scalar.cpp

@@ -48,7 +48,7 @@ void llvm::initializeScalarOpts(PassRegistry &Registry) {
   initializeInductiveRangeCheckEliminationPass(Registry);
   initializeIndVarSimplifyLegacyPassPass(Registry);
   initializeJumpThreadingPass(Registry);
-  initializeLICMPass(Registry);
+  initializeLegacyLICMPassPass(Registry);
   initializeLoopDataPrefetchPass(Registry);
   initializeLoopDeletionPass(Registry);
   initializeLoopAccessLegacyAnalysisPass(Registry);

llvm/test/Transforms/LICM/argmemonly-call.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -basicaa -licm %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 declare i32 @foo() readonly argmemonly nounwind
 declare i32 @foo2() readonly nounwind
 declare i32 @bar(i32* %loc2) readonly argmemonly nounwind

llvm/test/Transforms/LICM/assume.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -licm -basicaa < %s -S | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 
 define void @f_0(i1 %p) nounwind ssp {
 ; CHECK-LABEL: @f_0(

llvm/test/Transforms/LICM/atomics.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -S -basicaa -licm | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='lcssa,require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 
 ; Check that we can hoist unordered loads
 define i32 @test1(i32* nocapture %y) nounwind uwtable ssp {

llvm/test/Transforms/LICM/basictest.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -licm | llvm-dis
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s | llvm-dis
 
 define void @testfunc(i32 %i) {
 ; <label>:0

llvm/test/Transforms/LICM/constexpr.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -S -basicaa -licm | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='lcssa,require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 ; This fixes PR22460
 
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

llvm/test/Transforms/LICM/crash.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -licm -disable-output < %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -disable-output < %s
 
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-apple-darwin10.0.0"

llvm/test/Transforms/LICM/debug-value.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -licm -basicaa < %s -S | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 
 define void @dgefa() nounwind ssp {
 entry:

llvm/test/Transforms/LICM/extra-copies.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -licm -S | FileCheck %s
+; RUN: opt -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 ; PR19835
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"

llvm/test/Transforms/LICM/funclet.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -licm -S | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
 
 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
 target triple = "i386-pc-windows-msvc18.0.0"

llvm/test/Transforms/LICM/hoist-bitcast-load.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -basicaa -licm < %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='loop-simplify,require<aa>,require<targetir>,require<scalar-evolution>,loop(simplify-cfg,licm)' -S < %s | FileCheck %s
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 

llvm/test/Transforms/LICM/hoist-deref-load.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -basicaa -licm < %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='loop-simplify,require<aa>,require<targetir>,require<scalar-evolution>,loop(simplify-cfg,licm)' -S < %s | FileCheck %s
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 

llvm/test/Transforms/LICM/hoist-nounwind.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -basicaa -licm < %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='lcssa,require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 

llvm/test/Transforms/LICM/hoist-round.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -licm < %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 target datalayout = "E-m:e-p:32:32-i8:8:8-i16:16:16-i64:32:32-f64:32:32-v64:32:32-v128:32:32-a0:0:32-n32"
 

llvm/test/Transforms/LICM/hoisting.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -licm -S | FileCheck %s
+; RUN: opt -lcssa %s | opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S | FileCheck %s
 
 @X = global i32 0		; <i32*> [#uses=1]
 

llvm/test/Transforms/LICM/lcssa-ssa-promoter.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -basicaa -licm < %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s| FileCheck %s
 ;
 ; Manually validate LCSSA form is preserved even after SSAUpdater is used to
 ; promote things in the loop bodies.

llvm/test/Transforms/LICM/no-preheader-test.ll

@@ -1,5 +1,6 @@
 ; Test that LICM works when there is not a loop-preheader
 ; RUN: opt < %s -licm | llvm-dis
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s | llvm-dis
 
 define void @testfunc(i32 %i.s, i1 %ifcond) {
 	br i1 %ifcond, label %Then, label %Else

llvm/test/Transforms/LICM/preheader-safe.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -licm < %s | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 declare void @use_nothrow(i64 %a) nounwind
 declare void @use(i64 %a)

llvm/test/Transforms/LICM/promote-order.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -tbaa -basicaa -licm -S < %s | FileCheck %s
+; RUN: opt -aa-pipeline=type-based-aa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 ; LICM should keep the stores in their original order when it sinks/promotes them.
 ; rdar://12045203

llvm/test/Transforms/LICM/promote-tls.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -tbaa -basicaa -licm -S < %s | FileCheck %s
+; RUN: opt -aa-pipeline=type-based-aa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 ; If we can prove a local is thread local, we can insert stores during
 ; promotion which wouldn't be legal otherwise.

llvm/test/Transforms/LICM/scalar-promote-memmodel.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -basicaa -licm -S | FileCheck %s
+; RUN: opt -aa-pipeline=type-based-aa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 ; Make sure we don't hoist a conditionally-executed store out of the loop;
 ; it would violate the concurrency memory model

llvm/test/Transforms/LICM/scalar_promote-unwind.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -basicaa -licm -S | FileCheck %s
+; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"

llvm/test/Transforms/LICM/scalar_promote.ll

@@ -1,4 +1,5 @@
 ; RUN: opt < %s -basicaa -tbaa -licm -S | FileCheck %s
+; RUN: opt -aa-pipeline=type-based-aa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 @X = global i32 7   ; <i32*> [#uses=4]

llvm/test/Transforms/LICM/speculate.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -S -licm < %s | FileCheck %s
+; RUN: opt -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S %s | FileCheck %s
 
 ; UDiv is safe to speculate if the denominator is known non-zero.
 

llvm/test/Transforms/LICM/volatile-alias.ll

@@ -1,4 +1,5 @@
 ; RUN: opt -basicaa -sroa -loop-rotate -licm -S < %s | FileCheck %s
+; RUN: opt -basicaa -sroa -loop-rotate %s | opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' -S | FileCheck %s
 ; The objects *p and *q are aliased to each other, but even though *q is
 ; volatile, *p can be considered invariant in the loop. Check if it is moved
 ; out of the loop.