Remove FreeInst.

Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85176 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 4 deletions

diff --git a/lib/Transforms/Scalar/DeadStoreElimination.cpp b/lib/Transforms/Scalar/DeadStoreElimination.cpp
index f55d8b2acc..c10d236cda 100644
--- a/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -89,7 +89,7 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) {
     Instruction *Inst = BBI++;
     
     // If we find a store or a free, get its memory dependence.
-    if (!isa<StoreInst>(Inst) && !isa<FreeInst>(Inst) && !isFreeCall(Inst))
+    if (!isa<StoreInst>(Inst) && !isFreeCall(Inst))
       continue;
     
     // Don't molest volatile stores or do queries that will return "clobber".
@@ -104,7 +104,7 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) {
     if (InstDep.isNonLocal()) continue;
   
     // Handle frees whose dependencies are non-trivial.
-    if (isa<FreeInst>(Inst) || isFreeCall(Inst)) {
+    if (isFreeCall(Inst)) {
       MadeChange |= handleFreeWithNonTrivialDependency(Inst, InstDep);
       continue;
     }
@@ -176,8 +176,7 @@ bool DSE::handleFreeWithNonTrivialDependency(Instruction *F, MemDepResult Dep) {
   Value *DepPointer = Dependency->getPointerOperand()->getUnderlyingObject();
 
   // Check for aliasing.
-  Value* FreeVal = isa<FreeInst>(F) ? F->getOperand(0) : F->getOperand(1);
-  if (AA.alias(FreeVal, 1, DepPointer, 1) !=
+  if (AA.alias(F->getOperand(1), 1, DepPointer, 1) !=
          AliasAnalysis::MustAlias)
     return false;