55cfaa37de
BumpPtrAllocator::Reset() doesn't need to allocate anything. (Thanks, Jakob)
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llvm-svn: 101138
2010-04-13 16:38:06 +00:00
5b0650bf6e
Let BumpPtrAllocator lazily allocate the first slab.
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We have some code in llvm and clang where a BumpPtrAllocator is declared in a
class but never used in the common case. Stop wasting memory there.
llvm-svn: 101130
2010-04-13 14:41:51 +00:00
04c713dd45
Introduce SpecificBumpPtrAllocator, a wrapper for BumpPtrAllocator which allows
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only a single type of object to be allocated. Use it to make VNInfo destruction
typesafe.
llvm-svn: 99919
2010-03-30 20:16:45 +00:00
8061bb141e
Reapply r99881 with some fixes: only call destructor in releaseMemory!
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llvm-svn: 99883
2010-03-30 11:17:48 +00:00
a2d1dc42e1
Revert 99881, it brooke smooshlab's llvm-gcc-i386-darwin9.
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llvm-svn: 99882
2010-03-30 10:25:08 +00:00
ba6d13c0ea
Introduce another Reset() method in BumpPtrAllocator that calls a destructor
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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
2010-03-30 10:08:26 +00:00
efda1e4f0f
Temporarily revert r93581. It was causing failures in the ExecutionEngine tests
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on the build bots.
llvm-svn: 93606
2010-01-16 01:06:58 +00:00
12821816c6
BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time. This removes one of the 'init_constructors' reported in <rdar://problem/7545356>.
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llvm-svn: 93581
2010-01-15 23:29:34 +00:00
56869f22c4
Move DataTypes.h to include/llvm/System, update all users. This breaks the last
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direct inclusion edge from System to Support.
llvm-svn: 85086
2009-10-26 01:35:46 +00:00
49adbf42b1
Make sure the memory range is writable before memset'ing it.
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llvm-svn: 81308
2009-09-09 01:45:24 +00:00
4b1f2f4779
Added a test and fixed a bug in BumpPtrAllocator relating to large alignment
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values. Hopefully this fixes PR4622.
llvm-svn: 77088
2009-07-25 21:26:02 +00:00
a3d677b002
Switch to raw_ostream.
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llvm-svn: 76943
2009-07-24 04:01:01 +00:00
c2d882dd1a
Re-committing changes from r76825 to BumpPtrAllocator with a fix and tests for
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an off-by-one error.
llvm-svn: 76891
2009-07-23 18:34:13 +00:00
921673225c
Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset.
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llvm-svn: 76838
2009-07-23 01:40:54 +00:00
57421f3e0f
add header for 'memset'.
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llvm-svn: 76837
2009-07-23 01:38:47 +00:00
5bd6105d65
Parameterize the BumpPtrAllocator over a slab allocator. It defaults to using
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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
2009-07-23 00:30:41 +00:00
804c95df52
Fold the useful features of alist and alist_node into ilist, and
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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
2008-07-28 21:51:04 +00:00
e5932e5a3d
Add some basic Pool-allocation infrastructure. This adds a Recycler class,
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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
2008-07-07 22:58:06 +00:00
86cb31862f
Fix more -Wshorten-64-to-32 warnings.
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llvm-svn: 50659
2008-05-05 18:30:58 +00:00
f06226f506
Fix a pointer-arithmetic bug that caused 64-bit host pointer values to
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be truncated to 32 bits. This fixes the recent Benchmarks/McCat/09-vor
regression on x86-64, among other things.
llvm-svn: 50372
2008-04-28 20:25:15 +00:00
e51f22986b
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.
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llvm-svn: 50362
2008-04-28 17:58:07 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
ee8d9a0e81
Smarter Reset(). Instead of deallocating all memory regions and reallocate the
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first region, just deallocate all but the last region in the list.
llvm-svn: 41782
2007-09-08 00:02:17 +00:00
3dba41bf37
Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor.
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llvm-svn: 41728
2007-09-05 21:41:34 +00:00
66330fdddb
Avoid TBAA issue.
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llvm-svn: 34539
2007-02-23 22:31:24 +00:00
30c0f3367c
Don't use <sstream> in Streams.h but <iosfwd> instead.
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llvm-svn: 32340
2006-12-07 23:41:45 +00:00
f3baad3ee1
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
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now cerr, cout, and NullStream resp.
llvm-svn: 32298
2006-12-07 01:30:32 +00:00
3750ae25a0
Removed #include <iostream> and replace with llvm_* streams.
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llvm-svn: 31927
2006-11-26 10:52:51 +00:00
8ea2e68493
Include llvm/Support/DataTypes.h to define intptr_t.
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This fixes the build on OpenBSD and potentially other systems.
llvm-svn: 31550
2006-11-08 15:04:35 +00:00
b9de90377f
Add a new llvm::Allocator abstraction, which will be used by a container
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I'm about to add. This is similar to, but necessarily different than, the
STL allocator class.
llvm-svn: 31285
2006-10-29 22:08:03 +00:00
Benjamin Kramer