only a single type of object to be allocated. Use it to make VNInfo destruction
typesafe.

llvm-svn: 99919

llvm-svn: 99883

llvm-svn: 99882

on all objects it has allocated, if they are all of the same size and alignment.
Use this to destruct all VNInfos allocated in LiveIntervalAnalysis (PR6653).

valnos is not reliable for this purpose, as seen in r99400
(which still leaked, and sometimes caused double frees).

llvm-svn: 99881

on the build bots.

llvm-svn: 93606

BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time.  This removes one of the 'init_constructors' reported in <rdar://problem/7545356>.

llvm-svn: 93581

direct inclusion edge from System to Support.

llvm-svn: 85086

llvm-svn: 81308

values.  Hopefully this fixes PR4622.

llvm-svn: 77088

llvm-svn: 76943

an off-by-one error.

llvm-svn: 76891

Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset.

llvm-svn: 76838

llvm-svn: 76837

malloc, so there should be no functional changes to other code.

These changes are necessary since I have plans to use this allocator in the JIT
memory manager, and it needs a special allocator.

I also added some tests which helped me pinpoint some bugs.

llvm-svn: 76825

a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.

Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.

Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.

llvm-svn: 54146

for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.

llvm-svn: 53210

llvm-svn: 50659

be truncated to 32 bits. This fixes the recent Benchmarks/McCat/09-vor
regression on x86-64, among other things.

llvm-svn: 50372

Bug fix in BumpPtrAllocator: don't assume that all objects have the same alignment.  "Bump" of the pointer for the next allocated object to be of the specified alignment.

llvm-svn: 50362

llvm-svn: 45418

first region, just deallocate all but the last region in the list.

llvm-svn: 41782

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

llvm-svn: 41728

llvm-svn: 34539

llvm-svn: 32340

now cerr, cout, and NullStream resp.

llvm-svn: 32298

llvm-svn: 31927

This fixes the build on OpenBSD and potentially other systems.

llvm-svn: 31550

I'm about to add.  This is similar to, but necessarily different than, the
STL allocator class.

llvm-svn: 31285