Junjie Gu
fcb0ee8ffe
Make sure the size is doubled (not 4x).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29 21:34:26 +00:00
Chris Lattner
6a363782fe
add a helper ctor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-21 07:15:15 +00:00
Chris Lattner
4bbf4ee149
Remove isPod() from DenseMapInfo, splitting it out to its own
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isPodLike type trait. This is a generally useful type trait for
more than just DenseMap, and we really care about whether something
acts like a pod, not whether it really is a pod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91421 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15 07:26:43 +00:00
Jeffrey Yasskin
81cf432569
Fix DenseMap iterator constness.
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This patch forbids implicit conversion of DenseMap::const_iterator to
DenseMap::iterator which was possible because DenseMapIterator inherited
(publicly) from DenseMapConstIterator. Conversion the other way around is now
allowed as one may expect.
The template DenseMapConstIterator is removed and the template parameter
IsConst which specifies whether the iterator is constant is added to
DenseMapIterator.
Actually IsConst parameter is not necessary since the constness can be
determined from KeyT but this is not relevant to the fix and can be addressed
later.
Patch by Victor Zverovich!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86636 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 01:02:17 +00:00
Jeffrey Yasskin
4ab74cdc12
Fix stylistic and documentation problems in ValueMap found by Nick Lewycky and
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Evan Cheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-23 20:54:00 +00:00
Torok Edwin
127445818e
Add a comment explaining how DenseMap::insert works, because it is not
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intuitive.
It does NOT update the value if the key is already in the map,
it also returns false if the key is already in the map, regardless
if the value matched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83458 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07 09:23:56 +00:00
Chris Lattner
724f675144
give densemap iterators real iterator traits.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81538 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:15:46 +00:00
Chris Lattner
32859c71d6
make DenseMap::clear() early exit if there is nothing to do.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30 05:55:04 +00:00
Dan Gohman
a9ad04191c
This void is implicit in C++.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78848 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12 22:10:57 +00:00
Dan Gohman
fb3af88ba7
Split DenseMapInfo into a separate header file, so that it can be
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included separately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 18:18:19 +00:00
Torok Edwin
d06c59821a
Add freed memory poisoning in !NDEBUG mode for DenseMap.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 18:01:37 +00:00
Stuart Hastings
f0e4cac7eb
Prevent looping when DenseSet is abused.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 20:47:53 +00:00
Chris Lattner
11d8fb9609
DenseMap.h needs <new> because it explicitly calls operator new/delete.
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Patch by John McCall!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 19:50:14 +00:00
Chris Lattner
dd255a6247
Add range insert method for DenseSet and define DenseMapInfo for chars.
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Patch by Kevin Fan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01 19:50:49 +00:00
Chris Lattner
bdd376ccb2
add some accessors so I can play games with DenseMaps.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31 20:57:23 +00:00
Chris Lattner
f341a47d10
When forming sentinels for empty/tombstone, make sure to respect the
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pointer's expected number of zero low-bits.
This should fix the breakage I introduced recently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67990 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-29 06:33:22 +00:00
Bill Wendling
d10aacea5e
Get rid of warning about implicit 64-to-32 bit conversions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22 02:10:33 +00:00
Chris Lattner
2f39b29170
improve compatibility with cygwin, patch by Jay Foad!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62535 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19 22:00:18 +00:00
Misha Brukman
3a54b3dc87
Removed trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09 19:25:42 +00:00
Chris Lattner
b6bbe6320b
add densemap range insertion method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02 06:08:04 +00:00
Chris Lattner
b911824620
fix indentation. std::pair is "isPod" if the first/second are both isPod.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60262 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 00:50:20 +00:00
David Greene
13e781ebe7
Add STL-style typedefs and default constructors to make it possible to
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use DenseMap in more contexts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-27 18:15:15 +00:00
Daniel Dunbar
7b75fbf224
Add DenseMap::lookup:
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/// lookup - Return the entry for the specified key, or a default
/// constructed value if no such entry exists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-29 00:48:44 +00:00
Chris Lattner
2dba6a1bdb
consolidate DenseMapInfo implementations, and add one for std::pair.
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Patch contributed by m-s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 05:08:25 +00:00
Dan Gohman
6b345ee9b2
Make DenseMap's insert return a pair, to more closely resemble std::map.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53177 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07 17:46:23 +00:00
Dan Gohman
08c09496c2
Use operator new instead of new char[].
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53067 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03 00:59:36 +00:00
Owen Anderson
2b7470eb54
Fix use of placement new to actually use an address.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52423 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 18:07:43 +00:00
Anton Korobeynikov
ae9f3a3b7c
Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:08:44 +00:00
Chris Lattner
7ed47a1335
Don't attribute in file headers anymore. See llvmdev for the
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discussion of this change. Boy are my fingers tired. ;-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 19:59:42 +00:00
Ted Kremenek
aef806e9cb
Added typedef "value_type" to DenseMap (similar typedef appears in std::map).
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Added method FindAndConstruct() to DenseMap, which does the same thing as
operator[], except that it refers value_type& (a reference to both the
key and mapped data pair). This method is useful for clients that wish
to access the stored key value, as opposed to the key used to do the
actual lookup (these need not always be the same).
Redefined operator[] to use FindAndConstruct() (same logic).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43594 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-01 00:54:57 +00:00
Chris Lattner
05831c073a
Fix problems where DenseMap used operator!= instead of correctly
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calling the traits implementation of isEqual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42782 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-09 05:42:12 +00:00
Chris Lattner
f8a3ee1d63
Finish off PR1723, by working around some strange compiler bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42737 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-07 17:57:10 +00:00
Daniel Berlin
d81ccc2806
Implement offline variable substitution in order to reduce memory
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and time usage.
Fixup operator == to make this work, and add a resize method to DenseMap
so we can resize our hashtable once we know how big it should be.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42269 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-24 19:45:49 +00:00
Owen Anderson
4938d34772
Fix CopyFrom for non-POD data types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42208 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-21 20:55:54 +00:00
Chris Lattner
76c1b97e40
Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfo
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Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42042 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17 18:34:04 +00:00
Owen Anderson
29ce95511f
Add a ValueInfoT template parameter to DenseMap so that it can properly make decisions
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based on whether the key AND the value require ctors/dtors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41837 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 05:08:05 +00:00
Owen Anderson
98153ecbc1
Don't bother to initialize values corresponding to empty or tombstone
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keys.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41834 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 04:43:51 +00:00
Owen Anderson
9544dc294f
Fix non-deterministic behavior in the DenseMap copy constructor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41831 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 03:48:08 +00:00
Owen Anderson
3d345631db
Forgot a line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41115 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 00:25:42 +00:00
Owen Anderson
67280e1dd2
Add a copy constructor and an assignment operator to DenseMap.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41114 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 00:18:32 +00:00
Reid Spencer
276222a5ae
Change casts from old style to new style. This helps document the details
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better, gives the compiler a chance to validate the cast and reduces warnings
if the user turns on -Wold-style-cast option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41033 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-12 08:12:35 +00:00
Chris Lattner
7b54452c84
Fix a bug in DenseMap::clear, where we never reset a tombstone
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to EmptyKey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40839 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-05 08:43:36 +00:00
Chris Lattner
42e4bdf257
When clearing a SmallPtrSet, if the set had a huge capacity, but the
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contents of the set were small, deallocate and shrink the set. This
avoids having us to memset as much data, significantly speeding up
some pathological cases. For example, this speeds up the verifier
from 0.3899s to 0.0763 (5.1x) on the testcase from PR1432 in a
release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40837 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-05 07:32:14 +00:00
Owen Anderson
398b40671b
Make the heuristic for shrinking DenseMap smarter.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40114 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 18:56:46 +00:00
Owen Anderson
6ad5fde5d0
Have DenseMap auto-shrink itself on clear(). This improves the time to optimize
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403.gcc from 15.2s to 14.3s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40100 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 16:15:24 +00:00
Chris Lattner
569b935e6b
Make find return the appropriate iterator/const_iterator
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34137 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10 06:58:17 +00:00
Chris Lattner
a76b1febd4
Allow DenseMAp to take an explicit DenseMapKeyInfo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34134 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-10 06:34:58 +00:00
Chris Lattner
04a3115e61
Fix a really subtle bug where the entire hash table could fill with
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tombstones, causing subsequent insertions to infinitely loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33972 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-07 00:55:59 +00:00
Chris Lattner
28f72279f5
add a version of insert that takes the key and value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33856 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-04 00:42:41 +00:00
Chris Lattner
5a5f6b6e38
8 buckets is way too small to start out with. This was only for testing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33835 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-03 19:30:48 +00:00