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32 Commits

Author SHA1 Message Date
Michael J. Spencer
1f6efa3996 Merge System into Support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:16:10 +00:00
Benjamin Kramer
82d96cccbc Grow BumpPtrAllocator's slab size dynamically if we allocated many slabs. This 
reduces the amount of malloc calls and may reduce memory overhead.

Some numbers:
ASTContext stats, clang -cc1 -disable-free -fsyntax-only Cocoa_h.m
without dynamic growth                          |  with dynamic growth
Number of memory regions: 3158                  |  Number of memory regions: 432
Bytes used: 12333185                            |  Bytes used: 12333185
Bytes allocated: 12935168                       |  Bytes allocated: 12800000
Bytes wasted: 601983 (includes alignment, etc)  |  Bytes wasted: 466815 (includes alignment, etc)

ASTContext stats, clang -cc1 -disable-free -fsyntax-only on clang's ASTReader.cpp
without dynamic growth                          |  with dynamic growth
Number of memory regions: 10987                 |  Number of memory regions: 551
Bytes used: 42910356                            |  Bytes used: 42910356
Bytes allocated: 45002752                       |  Bytes allocated: 44711936
Bytes wasted: 2092396 (includes alignment, etc) |  Bytes wasted: 1801580 (includes alignment, etc)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:18:28 +00:00
Benjamin Kramer
b0322e6ddf 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
 2010-04-13 16:38:06 +00:00
Benjamin Kramer
5e6a705985 Let BumpPtrAllocator lazily allocate the first slab. 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 14:41:51 +00:00
Benjamin Kramer
991de14dd6 Introduce SpecificBumpPtrAllocator, a wrapper for BumpPtrAllocator which allows 
only a single type of object to be allocated. Use it to make VNInfo destruction
typesafe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 20:16:45 +00:00
Torok Edwin
01cb1b665d Reapply r99881 with some fixes: only call destructor in releaseMemory! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 11:17:48 +00:00
Torok Edwin
226dd2ba99 Revert 99881, it brooke smooshlab's llvm-gcc-i386-darwin9. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99882 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 10:25:08 +00:00
Torok Edwin
2a22004f68 Introduce another Reset() method in BumpPtrAllocator that calls a destructor 
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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99881 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 10:08:26 +00:00
Bill Wendling
c5b7b19677 Temporarily revert r93581. It was causing failures in the ExecutionEngine tests 
on the build bots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93606 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:06:58 +00:00
Ted Kremenek
67c59826bf BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time. This removes one of the 'init_constructors' reported in <rdar://problem/7545356>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:29:34 +00:00
Chandler Carruth
8b67f774e9 Move DataTypes.h to include/llvm/System, update all users. This breaks the last 
direct inclusion edge from System to Support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 01:35:46 +00:00
Evan Cheng
c48edbb2fd Make sure the memory range is writable before memset'ing it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81308 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-09 01:45:24 +00:00
Reid Kleckner
7d509134dc Added a test and fixed a bug in BumpPtrAllocator relating to large alignment 
values.  Hopefully this fixes PR4622.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77088 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 21:26:02 +00:00
Daniel Dunbar
7da9559c52 Switch to raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76943 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 04:01:01 +00:00
Reid Kleckner
8f51a62b41 Re-committing changes from r76825 to BumpPtrAllocator with a fix and tests for 
an off-by-one error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76891 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-23 18:34:13 +00:00
Reid Kleckner
4bf370698a Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76838 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-23 01:40:54 +00:00
Zhongxing Xu
54e650f2c7 add header for 'memset'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76837 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-23 01:38:47 +00:00
Reid Kleckner
95eb3ad353 Parameterize the BumpPtrAllocator over a slab allocator. It defaults to using 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76825 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-23 00:30:41 +00:00
Dan Gohman
fed90b6d09 Fold the useful features of alist and alist_node into ilist, and 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-28 21:51:04 +00:00
Dan Gohman
e14d81deeb Add some basic Pool-allocation infrastructure. This adds a Recycler class, 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53210 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 22:58:06 +00:00
Evan Cheng
34cd4a484e Fix more -Wshorten-64-to-32 warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 18:30:58 +00:00
Dan Gohman
3e2dda63d0 Fix a pointer-arithmetic bug that caused 64-bit host pointer values to 
be truncated to 32 bits. This fixes the recent Benchmarks/McCat/09-vor
regression on x86-64, among other things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-28 20:25:15 +00:00
Ted Kremenek
c9715624fa 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50362 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-28 17:58:07 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 20:36:04 +00:00
Evan Cheng
7dfda9e674 Smarter Reset(). Instead of deallocating all memory regions and reallocate the 
first region, just deallocate all but the last region in the list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41782 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-08 00:02:17 +00:00
Evan Cheng
188b5224fd Added Reset() to free all allocated memory regions and reset state to be the same as right after ctor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-05 21:41:34 +00:00
Chris Lattner
d675b8347d Avoid TBAA issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34539 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 22:31:24 +00:00
Bill Wendling
1a097e30d3 Don't use <sstream> in Streams.h but <iosfwd> instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32340 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 23:41:45 +00:00
Bill Wendling
e81561909d Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are 
now cerr, cout, and NullStream resp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 01:30:32 +00:00
Bill Wendling
fe6b146dcd Removed #include <iostream> and replace with llvm_* streams. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31927 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-26 10:52:51 +00:00
John Criswell
72a780f577 Include llvm/Support/DataTypes.h to define intptr_t. 
This fixes the build on OpenBSD and potentially other systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31550 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 15:04:35 +00:00
Chris Lattner
9f617d64c5 Add a new llvm::Allocator abstraction, which will be used by a container 
I'm about to add.  This is similar to, but necessarily different than, the
STL allocator class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31285 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-29 22:08:03 +00:00