Anders Carlsson 77bc49e5e2 Recognize and simplify ... (A+B) == A -> B == 0 A == (A+B) -> B == 0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124567 91177308-0d34-0410-b5e6-96231b3b80d8		2011-01-30 22:01:13 +00:00
..
ADCE
ArgumentPromotion	fix PR8932, a case where arg promotion could infinitely promote.	2011-01-16 08:09:24 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare	temporarily revert r123526. While working on a follow-on patch I	2011-01-15 07:51:19 +00:00
ConstantMerge	Don't merge two constants if we care about the address of both.	2011-01-16 17:05:09 +00:00
ConstProp	Add the select optimization recently added to instcombine to constant folding.	2011-01-29 20:35:06 +00:00
CorrelatedValuePropagation	Test for lazy value info's ability to prove the absense of NULLs in pointers.	2011-01-16 21:57:20 +00:00
DeadArgElim	Teach DAE to look for functions whose arguments are unused, and change all callers to pass in an undefvalue instead.	2011-01-16 21:25:33 +00:00
DeadStoreElimination	Fix PR8728, a miscompilation I recently introduced. When optimizing	2010-12-06 01:48:06 +00:00
EarlyCSE	Duncan deftly points out that readnone functions aren't	2011-01-03 23:38:13 +00:00
FunctionAttrs	Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis	2010-11-10 01:02:18 +00:00
GlobalDCE
GlobalOpt	Add unnamed_addr when we can show that address of a global is not used.	2011-01-19 16:32:21 +00:00
GVN	Give GVN back the ability to perform simple conditional propagation on conditional branch values.	2010-12-21 23:54:34 +00:00
IndVarSimplify	Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.	2010-10-07 23:29:37 +00:00
Inline	relax testcase a bit.	2011-01-14 07:46:33 +00:00
InstCombine	Recognize and simplify	2011-01-30 22:01:13 +00:00
InstSimplify	Commit 124487 broke 254.gap. See if disabling the part that might be triggered	2011-01-30 18:24:20 +00:00
Internalize
IPConstantProp	more test cleanup	2010-09-02 22:38:56 +00:00
JumpThreading	Re-apply r124518 with fix. Watch out for invalidated iterator.	2011-01-29 04:46:23 +00:00
LCSSA	Avoid depending on LCSSA implicitly pulling in LoopSimplify.	2010-07-26 18:00:43 +00:00
LICM	Enhance LICM to promote alias sets whose pointers themselves are stored,	2010-12-19 05:57:25 +00:00
LoopDeletion	Make LoopSimplify change conditional branches in loop exiting blocks	2010-02-25 06:57:05 +00:00
LoopIdiom	Teach loop-idiom to turn a loop containing a memset into a larger memset	2011-01-04 07:46:33 +00:00
LoopRotate	merge tests into one crash.ll test.	2011-01-11 07:50:07 +00:00
LoopSimplify	Fix PR8702 by not having LoopSimplify claim to preserve LCSSA form. As described	2011-01-02 13:38:21 +00:00
LoopStrengthReduce	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
LoopUnroll	Revert r113439, which relaxed the requirement that loops containing calls cannot be unrolled. After some discussion,	2010-09-09 20:02:23 +00:00
LoopUnswitch	Factor code for testing whether replacing one value with another	2010-11-18 19:59:41 +00:00
LowerAtomic	Add an atomic lowering pass	2010-08-03 16:19:16 +00:00
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg	Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.	2010-06-04 22:27:30 +00:00
MemCpyOpt	Actually check memcpy lengths, instead of just commenting about	2011-01-21 22:07:57 +00:00
MergeFunc	Fix surprising missed optimization in mergefunc where we forgot to consider	2011-01-27 08:38:19 +00:00
PruneEH	fix some failures my callgraph dump format change broke.	2010-04-23 18:38:40 +00:00
Reassociate	Fix PR9039, a use-after-free in reassociate. The issue was that the	2011-01-26 10:08:38 +00:00
ScalarRepl	merge all the "crash tests" into crash.ll	2011-01-24 03:37:34 +00:00
SCCP	fix PR7876: If ipsccp decides that a function's address is taken	2010-08-12 22:25:23 +00:00
SimplifyCFG	Re-apply r124518 with fix. Watch out for invalidated iterator.	2011-01-29 04:46:23 +00:00
SimplifyLibCalls	Revert r64460. strtol and friends cannot be marked readonly, even with	2010-12-17 01:09:43 +00:00
Sink	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
SRETPromotion
StripSymbols	DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE.	2010-08-25 18:52:02 +00:00
TailCallElim	Add a test for TCE return duplication.	2011-01-29 04:53:35 +00:00
TailDup	The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!	2010-09-01 18:32:56 +00:00