Duncan Sands 50ca4d37f7 Improve threading of comparisons over select instructions (spotted by my ... auto-simplifier). This has a big impact on Ada code, but not much else. Unfortunately the impact is mostly negative! This is due to PR9004 (aka SCCP failing to resolve conditional branch conditions in the destination blocks of the branch), in which simple correlated expressions are not resolved but complicated ones are, so simplifying has a bad effect! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124788 91177308-0d34-0410-b5e6-96231b3b80d8		2011-02-03 09:37:39 +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
EarlyCSE	Duncan deftly points out that readnone functions aren't	2011-01-03 23:38:13 +00:00
FunctionAttrs
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
IndVarSimplify
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	Improve threading of comparisons over select instructions (spotted by my	2011-02-03 09:37:39 +00:00
Internalize
IPConstantProp
JumpThreading	Re-apply r124518 with fix. Watch out for invalidated iterator.	2011-01-29 04:46:23 +00:00
LCSSA
LICM
LoopDeletion
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
LoopUnroll
LoopUnswitch
LowerAtomic
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
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
Reassociate	Fix reassociate to clear optional flags, such as nsw.	2011-02-02 02:02:34 +00:00
ScalarRepl	merge all the "crash tests" into crash.ll	2011-01-24 03:37:34 +00:00
SCCP
SimplifyCFG	SimplifyCFG: Turn switches into sub+icmp+branch if possible.	2011-02-02 15:56:22 +00:00
SimplifyLibCalls
Sink
SRETPromotion
StripSymbols
TailCallElim	Add a test for TCE return duplication.	2011-01-29 04:53:35 +00:00
TailDup