Revert "ARM: Use SpecificBumpPtrAllocator to fix leak introduced in r241920"

This reverts commit r241951. It caused http://llvm.org/PR24190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242733 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index 1bf2c3d0255d0e8175ac549861d39e4026ad7915..e22adabb82861f525095bf6b2cba1420168598d2 100644 (file)
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -116,7 +116,7 @@ namespace {
       /// Whether the instructions can be merged into a ldrd/strd instruction.
       bool CanMergeToLSDouble;
     };
-    SpecificBumpPtrAllocator<MergeCandidate> Allocator;
+    BumpPtrAllocator Allocator;
     SmallVector<const MergeCandidate*,4> Candidates;
     SmallVector<MachineInstr*,4> MergeBaseCandidates;
 
@@ -979,7 +979,7 @@ void ARMLoadStoreOpt::FormCandidates(const MemOpQueue &MemOps) {
     }
 
     // Form a candidate from the Ops collected so far.
-    MergeCandidate *Candidate = new(Allocator.Allocate()) MergeCandidate;
+    MergeCandidate *Candidate = new(Allocator) MergeCandidate;
     for (unsigned C = SIndex, CE = SIndex + Count; C < CE; ++C)
       Candidate->Instrs.push_back(MemOps[C].MI);
     Candidate->LatestMIIdx = Latest - SIndex;
@@ -1825,7 +1825,7 @@ bool ARMLoadStoreOpt::runOnMachineFunction(MachineFunction &Fn) {
       Modified |= MergeReturnIntoLDM(MBB);
   }
 
-  Allocator.DestroyAll();
+  Allocator.Reset();
   return Modified;
 }