Eli Friedman 198c39a4fe Add an instcombine for constructs like a | -(b != c); a select is more ... canonical, and generally leads to better code. Found while looking at an article about saturating arithmetic. llvm-svn: 129545		2011-04-14 22:41:27 +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	Roll r127459 back in:	2011-03-11 21:52:04 +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	Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.	2011-03-27 14:26:13 +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	Add an obvious missing safety check to DAE::RemoveDeadArgumentsFromCallers.	2011-03-01 00:33:47 +00:00
DeadStoreElimination	* The DSE code that tested for overlapping needed to take into account the fact	2011-03-30 21:37:19 +00:00
EarlyCSE	Duncan deftly points out that readnone functions aren't	2011-01-03 23:38:13 +00:00
FunctionAttrs
GlobalDCE
GlobalOpt	Add back a couple checks removed by r129128; the fact that an intitializer	2011-04-09 09:11:09 +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	Avoid creating canonical induction variables for non-native types.	2011-03-18 16:50:32 +00:00
Inline	relax testcase a bit.	2011-01-14 07:46:33 +00:00
InstCombine	Add an instcombine for constructs like a | -(b != c); a select is more	2011-04-14 22:41:27 +00:00
InstSimplify	Teach ComputeMaskedBits about sub nsw.	2011-03-12 17:18:11 +00:00
Internalize	Add test for r127138.	2011-03-07 21:28:14 +00:00
IPConstantProp
JumpThreading	Fix an infinite alternation in JumpThreading where two transforms would repeatedly undo each other. The solution is to perform more aggressive constant folding to make one of the edges just folded away rather than trying to thread it.	2011-04-14 21:35:50 +00:00
LCSSA	Do not add PHIs with no users when creating LCSSA form. Patch by Andrew Clinton.	2011-03-15 07:41:25 +00:00
LICM	PR9604; try to deal with RAUW updates correctly in the AST. I'm not convinced	2011-04-09 06:55:46 +00:00
LoopDeletion	Make LoopDeletion work on loops with multiple edges, as long as the incoming	2011-02-22 22:25:39 +00:00
LoopIdiom	Preserve line no. info.	2011-03-07 22:43:45 +00:00
LoopRotate	fix PR9523, a crash in looprotate on a non-canonical loop made out of indirectbr.	2011-04-09 07:25:58 +00:00
LoopSimplify	Avoid creating canonical induction variables for non-native types.	2011-03-18 16:50:32 +00:00
LoopStrengthReduce	Avoid creating canonical induction variables for non-native types.	2011-03-18 16:50:32 +00:00
LoopUnroll	add a testcase for r125827	2011-02-18 05:05:01 +00:00
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	When removing a function from the function set and adding it to deferred, we	2011-02-09 06:32:02 +00:00
PruneEH
Reassociate	Fix reassociate to use a worklist instead of recursing when new	2011-04-12 00:11:56 +00:00
ScalarRepl	Vectors with different number of elements of the same element type can have	2011-04-13 21:40:02 +00:00
SCCP
SimplifyCFG	Do not let debug info interfer with branch folding.	2011-04-07 23:11:25 +00:00
SimplifyLibCalls	Preserve line number information while simplifying libcalls.	2011-03-09 21:27:52 +00:00
Sink
StripSymbols
TailCallElim	Add a test for TCE return duplication.	2011-01-29 04:53:35 +00:00
TailDup