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3645 Commits

Author SHA1 Message Date
Owen Anderson
4d3daab1a1 Speculatively revert the use of DenseMap in LazyValueInfo, which may be causing Linux self-host failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 23:53:19 +00:00
Owen Anderson
bb39ac1458 Attempt to appease the DragonEgg buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 23:23:18 +00:00
Owen Anderson
aa6f105629 Convert one of LVI's primary maps to a DenseMap, now that we know are more assured of iterator stability. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122273 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 21:30:54 +00:00
Owen Anderson
87790abb08 More LVI cleanups, including trying to simplify the process of maintaining the OverDefinedCache. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 19:33:41 +00:00
Owen Anderson
6186394528 Reuse the reference into the LVI cache throughout the solver subsystem. This is much easier to 
verify as being safe thanks its recent de-recursivization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 18:18:16 +00:00
Duncan Sands
ee9a2e322a Have SimplifyBinOp dispatch Xor, Add and Sub to the corresponding methods 
(they had just been forgotten before).  Adding Xor causes "main" in the
existing testcase 2010-11-01-lshr-mask.ll to be hugely more simplified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 14:47:04 +00:00
Nick Lewycky
90862eeb7d Make LazyValueInfo non-recursive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:00:40 +00:00
Nate Begeman
9a3dc55202 Add vector versions of some existing scalar transforms to aid codegen in matching psign & pblend operations to the IR produced by clang/gcc for their C idioms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:12:19 +00:00
Dan Gohman
326faecc35 Update a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 02:55:10 +00:00
Dan Gohman
387f28aff4 Make memcpyopt TBAA-aware. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 02:51:19 +00:00
Dan Gohman
d67ca9de89 Enable TBAA by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121923 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:58:44 +00:00
Dan Gohman
c01895c7db Reapply r121886, and also update DecomposeGEPExpression to keep 
it in sync.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:49:55 +00:00
Dan Gohman
3928d13808 Revert r121886. DecomposeGEPExpression needs to be kept 
in sync.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121892 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:39:25 +00:00
Dan Gohman
243712720a Strengthen GetUnderlyingObject using InstructionSimplify. 
While LLVM's main design is that analysis code shouldn't
go out of its way to understand code which hasn't been
InstCombined, analysis utility routines like this can
find themselves being called in the middle of transform
passes when instcombine hasn't had a chance to run.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121886 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:10:26 +00:00
Dan Gohman
5034dd318a Move Value::getUnderlyingObject to be a standalone 
function so that it can live in Analysis instead of
VMCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:02:24 +00:00
Nick Lewycky
69bfdf5a24 Clean up some of LVI: 
* mergeIn now uses constant folding for constants that are provably not-equal.
 * sink some sanity checks from the get*() methods into the mark*() methods, to ensure that we never have a constant/notconstant ConstantInt
 * some textual cleanups, whitespace changes, removing "else" after return, that sort of thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121877 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 18:57:18 +00:00
Duncan Sands
fea3b218d6 Move Sub simplifications and additional Add simplifications out of 
instcombine and into InstructionSimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121861 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 14:07:39 +00:00
Duncan Sands
f8b1a5ea96 If we detect that the instruction we are simplifying is unreachable, arrange for 
it to be replaced by undef rather than not replaced at all, the idea being that
this may reduce the amount of work done by whoever called InstructionSimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 11:02:22 +00:00
Dan Gohman
c1f1efdd1a Update a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:53:18 +00:00
Dan Gohman
0f7f194416 Reapply r121520, PartialAlias implementation for BasicAA, now that 
memdep is updated to handle it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:50:24 +00:00
Dan Gohman
2cd1952917 Update memdep to handle PartialAlias as MayAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 22:47:57 +00:00
Tobias Grosser
d713acb631 Remove useless dynamic_cast<>(). 
Thanks Peter for pointing me to something that should have never been
committed to the llvm code base.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 21:58:28 +00:00
Dan Gohman
839c092548 Revert r121520, which may have introduced miscompilations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 21:48:28 +00:00
Dan Gohman
3bd5e52676 Implement PartialAlias checking in BasicAA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121520 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:47:03 +00:00
Dan Gohman
d891acd184 Minimally update this code to handle PartialAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:14:49 +00:00
Dan Gohman
4a2a3eab2d Use PartialAlias to do better noalias lint checking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121514 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 20:04:06 +00:00
Dan Gohman
91d747569a Teach AliasAnalysisCounter about PartialAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:53:05 +00:00
Dan Gohman
3d9f1ca5af Teach AliasAnalysisEvaluator about PartialAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:52:40 +00:00
Dan Gohman
2c2f4c8247 Update this code to handle PartialAlias as MayAlias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:40:47 +00:00
Owen Anderson
f33b302e5b Take the first step towards making LVI non-recursive: get rid of the LVIQuery abstraction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121357 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 06:14:58 +00:00
Devang Patel
b351ebf7fc Use type's file info while describing inheritance relationship. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 21:46:37 +00:00
Devang Patel
44498a640d Add support to create debug info for functions and methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:42:44 +00:00
Devang Patel
0a2551de2c Add support to create class type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:18:20 +00:00
Devang Patel
43c249cf1e Add support to create vector, array, enums etc... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:50:15 +00:00
Devang Patel
94541efd92 Global variable does not need linkage name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121212 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 00:06:22 +00:00
Devang Patel
48f17ba2a6 Add support to create local variable's debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121211 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:58:00 +00:00
Devang Patel
fe58f95f36 Add support to create variables, structs etc.. using DIBuilder. 
This is still work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:25:47 +00:00
Jay Foad
40f8f6264d PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and 
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 08:25:19 +00:00
Jakob Stoklund Olesen
5b3f779f33 Also inore '()' while creating mdnode name from ObjC symbol name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120856 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 23:40:45 +00:00
Devang Patel
ddb85acdbe Ignore '+' while creating mdnode name from ObjC symbol name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120853 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 23:29:30 +00:00
Jay Foad
7a874ddda0 PR5207: Rename overloaded APInt methods set(), clear(), flip() to 
setAllBits(), setBit(unsigned), etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 08:53:58 +00:00
Chris Lattner
ed58a6f96f move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120476 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:25:26 +00:00
Jay Foad
a99793c5ea PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 09:02:01 +00:00
Chris Lattner
12bf43bc4f strength reduce this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:56:13 +00:00
Chris Lattner
9dc9e81aa7 getLocationForDest should work for memset as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:48:20 +00:00
Chris Lattner
13815d9d3e enhance basicaa to return "Mod" for a memcpy call when the 
queried location doesn't overlap the source, and add a testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:43:16 +00:00
Chris Lattner
201d1e56bb Teach basicaa that memset's modref set is at worst "mod" and never 
contains "ref".

Enhance DSE to use a modref query instead of a store-specific hack
to generalize the "ignore may-alias stores" optimization to handle
memset and memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 00:28:45 +00:00
Frits van Bommel
3ee0af3584 Teach ConstantFoldInstruction() how to fold insertvalue and extractvalue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120316 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 20:36:52 +00:00
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
Chandler Carruth
e89ada98a6 Add some dead stores to pacify my least favorite GCC warning: may be 
uninitialized. The warning is terrible, has incorrect source locations, and has
a huge false positive rate such as *all* of these.

If anyone has a better solution, please let me know. Alternatively, I'll
happily add -Wno-uninitialized to the -Werror build mode. Maybe I can even do
it *only* when building with GCC instead of Clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 01:41:13 +00:00