Chris Lattner 4034e14985 teach GVN to widen integer loads when they are overaligned, when doing an ... wider load would allow elimination of subsequent loads, and when the wider load is still a native integer type. This eliminates a ton of loads on various benchmarks involving struct fields, though it is somewhat hobbled by clang not being very aggressive about field alignment. This is yet another step along the way towards resolving PR6627. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130390 91177308-0d34-0410-b5e6-96231b3b80d8		2011-04-28 07:29:08 +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	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +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	Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis	2010-11-10 01:02:18 +00:00
GlobalDCE
GlobalOpt	Add back a couple checks removed by r129128; the fact that an intitializer	2011-04-09 09:11:09 +00:00
GVN	teach GVN to widen integer loads when they are overaligned, when doing an	2011-04-28 07:29:08 +00:00
IndVarSimplify	Fixes PR9730: indvars: An asserting value handle still pointed to this value	2011-04-27 23:00:03 +00:00
Inline	relax testcase a bit.	2011-01-14 07:46:33 +00:00
InstCombine	Transform: "icmp eq (trunc (lshr(X, cst1)), cst" to "icmp (and X, mask), cst"	2011-04-26 20:18:20 +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	more test cleanup	2010-09-02 22:38:56 +00:00
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	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
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
PhaseOrdering	make a couple of changes to the standard pass pipeline:	2011-04-26 20:45:33 +00:00
PruneEH
Reassociate	Fix reassociate to use a worklist instead of recursing when new	2011-04-12 00:11:56 +00:00
ScalarRepl	make a couple of changes to the standard pass pipeline:	2011-04-26 20:45:33 +00:00
SCCP	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
SimplifyCFG	Simplify cfg inserts a call to trap when unreachable code is detected. Assign DebugLoc to this new trap instruction.	2011-04-27 17:59:27 +00:00
SimplifyLibCalls	Preserve line number information while simplifying libcalls.	2011-03-09 21:27:52 +00:00
Sink	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
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