BumpPtrAllocator::Reset() doesn't need to allocate anything. (Thanks, Jakob)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101138 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/Allocator.cpp b/lib/Support/Allocator.cpp
index ef40e47d9851ae57fb9f000f25a985e3c50ff62f..90df262336c59a36ddb4e3c11fbab39e32ce25c0 100644 (file)
--- a/lib/Support/Allocator.cpp
+++ b/lib/Support/Allocator.cpp
@@ -70,8 +70,8 @@ void BumpPtrAllocator::DeallocateSlabs(MemSlab *Slab) {
 /// Reset - Deallocate all but the current slab and reset the current pointer
 /// to the beginning of it, freeing all memory allocated so far.
 void BumpPtrAllocator::Reset() {
-  if (!CurSlab) // Start a new slab if we didn't allocate one already.
-    StartNewSlab();
+  if (!CurSlab)
+    return;
   DeallocateSlabs(CurSlab->NextPtr);
   CurSlab->NextPtr = 0;
   CurPtr = (char*)(CurSlab + 1);