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Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41728 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-09-05 21:41:34 +00:00
parent df344febe2
commit 188b5224fd
2 changed files with 8 additions and 0 deletions
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2
include/llvm/Support/Allocator.h
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@ -23,6 +23,7 @@ public:
MallocAllocator() {} MallocAllocator() {}
~MallocAllocator() {} ~MallocAllocator() {}
void Reset() {}
void *Allocate(unsigned Size, unsigned Alignment) { return malloc(Size); } void *Allocate(unsigned Size, unsigned Alignment) { return malloc(Size); }
void Deallocate(void *Ptr) { free(Ptr); } void Deallocate(void *Ptr) { free(Ptr); }
void PrintStats() const {} void PrintStats() const {}
@ -38,6 +39,7 @@ public:
BumpPtrAllocator(); BumpPtrAllocator();
~BumpPtrAllocator(); ~BumpPtrAllocator();
void Reset();
void *Allocate(unsigned Size, unsigned Alignment); void *Allocate(unsigned Size, unsigned Alignment);
void Deallocate(void *Ptr) {} void Deallocate(void *Ptr) {}
void PrintStats() const; void PrintStats() const;

6
lib/Support/Allocator.cpp
View File

@ -92,6 +92,12 @@ BumpPtrAllocator::~BumpPtrAllocator() {
((MemRegion*)TheMemory)->Deallocate(); ((MemRegion*)TheMemory)->Deallocate();
} }
void BumpPtrAllocator::Reset() {
((MemRegion*)TheMemory)->Deallocate();
TheMemory = malloc(4096);
((MemRegion*)TheMemory)->Init(4096, 1, 0);
}
void *BumpPtrAllocator::Allocate(unsigned Size, unsigned Align) { void *BumpPtrAllocator::Allocate(unsigned Size, unsigned Align) {
MemRegion *MRP = (MemRegion*)TheMemory; MemRegion *MRP = (MemRegion*)TheMemory;
void *Ptr = MRP->Allocate(Size, Align, &MRP); void *Ptr = MRP->Allocate(Size, Align, &MRP);