1 files changed, 14 insertions, 15 deletions

diff --git a/contrib/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/contrib/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 2a81689..fd34a24 100644
--- a/contrib/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/contrib/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -2174,16 +2174,9 @@ Instruction *InstCombiner::visitExtractValueInst(ExtractValueInst &EV) {
   if (!EV.hasIndices())
     return ReplaceInstUsesWith(EV, Agg);
 
-  if (Constant *C = dyn_cast<Constant>(Agg)) {
-    if (Constant *C2 = C->getAggregateElement(*EV.idx_begin())) {
-      if (EV.getNumIndices() == 0)
-        return ReplaceInstUsesWith(EV, C2);
-      // Extract the remaining indices out of the constant indexed by the
-      // first index
-      return ExtractValueInst::Create(C2, EV.getIndices().slice(1));
-    }
-    return nullptr; // Can't handle other constants
-  }
+  if (Value *V =
+          SimplifyExtractValueInst(Agg, EV.getIndices(), DL, TLI, DT, AC))
+    return ReplaceInstUsesWith(EV, V);
 
   if (InsertValueInst *IV = dyn_cast<InsertValueInst>(Agg)) {
     // We're extracting from an insertvalue instruction, compare the indices
@@ -2972,8 +2965,9 @@ static bool prepareICWorklistFromFunction(Function &F, const DataLayout &DL,
 
 static bool
 combineInstructionsOverFunction(Function &F, InstCombineWorklist &Worklist,
-                                AssumptionCache &AC, TargetLibraryInfo &TLI,
-                                DominatorTree &DT, LoopInfo *LI = nullptr) {
+                                AliasAnalysis *AA, AssumptionCache &AC,
+                                TargetLibraryInfo &TLI, DominatorTree &DT,
+                                LoopInfo *LI = nullptr) {
   // Minimizing size?
   bool MinimizeSize = F.hasFnAttribute(Attribute::MinSize);
   auto &DL = F.getParent()->getDataLayout();
@@ -2998,7 +2992,8 @@ combineInstructionsOverFunction(Function &F, InstCombineWorklist &Worklist,
     if (prepareICWorklistFromFunction(F, DL, &TLI, Worklist))
       Changed = true;
 
-    InstCombiner IC(Worklist, &Builder, MinimizeSize, &AC, &TLI, &DT, DL, LI);
+    InstCombiner IC(Worklist, &Builder, MinimizeSize,
+                    AA, &AC, &TLI, &DT, DL, LI);
     if (IC.run())
       Changed = true;
 
@@ -3017,7 +3012,8 @@ PreservedAnalyses InstCombinePass::run(Function &F,
 
   auto *LI = AM->getCachedResult<LoopAnalysis>(F);
 
-  if (!combineInstructionsOverFunction(F, Worklist, AC, TLI, DT, LI))
+  // FIXME: The AliasAnalysis is not yet supported in the new pass manager
+  if (!combineInstructionsOverFunction(F, Worklist, nullptr, AC, TLI, DT, LI))
     // No changes, all analyses are preserved.
     return PreservedAnalyses::all();
 
@@ -3050,6 +3046,7 @@ public:
 
 void InstructionCombiningPass::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesCFG();
+  AU.addRequired<AliasAnalysis>();
   AU.addRequired<AssumptionCacheTracker>();
   AU.addRequired<TargetLibraryInfoWrapperPass>();
   AU.addRequired<DominatorTreeWrapperPass>();
@@ -3061,6 +3058,7 @@ bool InstructionCombiningPass::runOnFunction(Function &F) {
     return false;
 
   // Required analyses.
+  auto AA = &getAnalysis<AliasAnalysis>();
   auto &AC = getAnalysis<AssumptionCacheTracker>().getAssumptionCache(F);
   auto &TLI = getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
   auto &DT = getAnalysis<DominatorTreeWrapperPass>().getDomTree();
@@ -3069,7 +3067,7 @@ bool InstructionCombiningPass::runOnFunction(Function &F) {
   auto *LIWP = getAnalysisIfAvailable<LoopInfoWrapperPass>();
   auto *LI = LIWP ? &LIWP->getLoopInfo() : nullptr;
 
-  return combineInstructionsOverFunction(F, Worklist, AC, TLI, DT, LI);
+  return combineInstructionsOverFunction(F, Worklist, AA, AC, TLI, DT, LI);
 }
 
 char InstructionCombiningPass::ID = 0;
@@ -3078,6 +3076,7 @@ INITIALIZE_PASS_BEGIN(InstructionCombiningPass, "instcombine",
 INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
 INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
+INITIALIZE_AG_DEPENDENCY(AliasAnalysis)
 INITIALIZE_PASS_END(InstructionCombiningPass, "instcombine",
                     "Combine redundant instructions", false, false)