Andrew Trick 22d20c218a Adding IV chain generation to LSR. ... After collecting chains, check if any should be materialized. If so, hide the chained IV users from the LSR solver. LSR will only solve for the head of the chain. GenerateIVChains will then materialize the chained IV users by computing the IV relative to its previous value in the chain. In theory, chained IV users could be exposed to LSR's solver. This would be considerably complicated to implement and I'm not aware of a case where we need it. In practice it's more important to intelligently prune the search space of nontrivial loops before running the solver, otherwise the solver is often forced to prune the most optimal solutions. Hiding the chained users does this well, so that LSR is more likely to find the best IV for the chain as a whole. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147801 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-09 21:18:52 +00:00
..
ADCE	Try to eliminate the use of the 'unwind' instruction.	2011-09-02 22:41:11 +00:00
ArgumentPromotion
BlockPlacement
BranchFolding
CodeExtractor	Update this test to the new EH model.	2011-09-20 22:29:43 +00:00
CodeGenPrepare
ConstantMerge
ConstProp	Manually upgrade the test suite to specify the flag to cttz and ctlz.	2011-12-12 11:59:10 +00:00
CorrelatedValuePropagation
DeadArgElim	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
DeadStoreElimination	Fix infinite loop in DSE when deleting a free in a reachable loop that's also	2011-12-08 22:36:35 +00:00
EarlyCSE	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
FunctionAttrs	Change CaptureTracking to pass a Use* instead of a Value* when a value is	2011-12-28 23:24:21 +00:00
GlobalDCE	remove a test that is using old-style llvm.dbg intrinsics, apparently only	2011-11-27 18:13:47 +00:00
GlobalOpt	PR11705, part 2: globalopt shouldn't put inttoptr/ptrtoint operations into global initializers if there's an implied extension or truncation.	2012-01-05 23:03:32 +00:00
GVN	Fix crasher in GVN due to my recent capture tracking changes.	2011-11-21 19:42:56 +00:00
IndVarSimplify	Extended replaceCongruentPhis to handle mixed phi types.	2012-01-07 01:12:09 +00:00
Inline	Allow inlining of functions with returns_twice calls, if they have the	2011-12-18 20:35:43 +00:00
InstCombine	InstCombine: Teach foldLogOpOfMaskedICmpsHelper that sign bit tests are bit tests.	2012-01-09 17:23:27 +00:00
InstSimplify	Add support for vectors of pointers.	2011-12-05 06:29:09 +00:00
Internalize
IPConstantProp	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
JumpThreading	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
LCSSA	Try to eliminate the use of the 'unwind' instruction.	2011-09-02 22:41:11 +00:00
LICM	Move Instruction::isSafeToSpeculativelyExecute out of VMCore and	2011-12-14 23:49:11 +00:00
LoopDeletion
LoopIdiom	Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.	2011-09-27 20:39:19 +00:00
LoopRotate
LoopSimplify	Make loop preheader insertion in LoopSimplify handle the case where the loop header is a landing pad correctly (by splitting the landingpad out of the loop header). Make some adjustments to the rest of LoopSimplify to make it clear that the rest of LoopSimplify isn't making bad assumptions about the presence of landing pads. PR11575.	2011-12-15 00:50:34 +00:00
LoopStrengthReduce	Adding IV chain generation to LSR.	2012-01-09 21:18:52 +00:00
LoopUnroll	Add -unroll-runtime for unrolling loops with run-time trip counts.	2011-12-09 06:19:40 +00:00
LoopUnswitch	Reinstate r146578; it doesn't appear to be the cause of some recent execution-	2011-12-22 21:06:36 +00:00
LowerAtomic	Convert more tests over to the new atomic instructions.	2011-09-26 20:27:49 +00:00
LowerExpectIntrinsic
LowerInvoke
LowerSwitch
Mem2Reg	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
MemCpyOpt	Probably not a good idea to convert a single vector load into a memcpy. We	2011-12-06 00:19:08 +00:00
MergeFunc	Convert to the new EH model.	2011-11-08 00:23:01 +00:00
ObjCARC	It turns out that clang does use pointer-to-function types to	2011-12-14 19:10:53 +00:00
PhaseOrdering
PruneEH
Reassociate
ScalarRepl	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
SCCP	Manually upgrade the test suite to specify the flag to cttz and ctlz.	2011-12-12 11:59:10 +00:00
SimplifyCFG	Fix SpeculativelyExecuteBB to either speculate all or none of the phis	2012-01-05 23:58:56 +00:00
SimplifyLibCalls	Turn cos(-x) into cos(x). Patch by Alexander Malyshev!	2011-12-27 18:25:50 +00:00
Sink	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
StripSymbols
TailCallElim	Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.	2011-11-27 06:54:59 +00:00
TailDup