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llvm-mirror/test/Transforms
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Dan Gohman 4e8fc41d48 Implement "superhero" strength reduction, or full strength 
reduction of address calculations down to basic pointer arithmetic.
This is currently off by default, as it needs a few other features
before it becomes generally useful. And even when enabled, full
strength reduction is only performed when it doesn't increase
register pressure, and when several other conditions are true.

This also factors out a bunch of exisiting LSR code out of
StrengthReduceStridedIVUsers into separate functions, and tidies
up IV insertion. This actually decreases register pressure even
in non-superhero mode. The change in iv-users-in-other-loops.ll
is an example of this; there are two more adds because there are
two fewer leas, and there is less spilling.

llvm-svn: 65108
2009-02-20 04:17:46 +00:00
..
ADCE Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this. 2008-07-03 17:21:41 +00:00
ArgumentPromotion Update the callgraph correctly in ArgumentPromotion. 2008-09-08 11:07:35 +00:00
BlockPlacement Rationalize the names of passes that print information: 2008-09-23 12:47:39 +00:00
BranchFolding Don't branch fold inline asm statements. 2007-10-19 21:09:55 +00:00
CodeExtractor sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
CodeGenPrepare reenable test 2008-11-24 21:27:20 +00:00
CondProp Ignore dbg intrinsics while propagating conditional expression info. Take 2. 2009-02-05 23:32:52 +00:00
ConstantMerge sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
ConstProp apply Eli's patch for PR2165 and provide a testcase. 2008-10-16 05:26:51 +00:00
DeadArgElim Support inreg, zext and sext as return value attributes. 2008-09-29 20:49:50 +00:00
DeadStoreElimination Reimplement the inner loop of DSE. It now uniformly uses getDependence(), 2008-12-06 00:53:22 +00:00
FunctionAttrs Remove alloca tracking from nocapture analysis. Not only 2009-01-07 19:39:06 +00:00
GlobalDCE If an alias is dead and so is its aliasee, then globaldce would 2009-02-17 23:05:26 +00:00
GlobalOpt If the target of an alias has internal linkage, then the 2009-02-15 09:56:08 +00:00
GVN Add a test for r61358, which I forgot to add way back when. 2009-02-18 07:50:22 +00:00
GVNPRE sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
IndMemRem Actually run the test in this directory. 2009-01-25 08:05:07 +00:00
IndVarSimplify Use a sign-extend instead of a zero-extend when promoting a 2009-02-18 17:22:41 +00:00
Inline Fix a nasty bug (PR3550) where the inline pass could incorrectly mark 2009-02-12 07:06:42 +00:00
InstCombine Change the argument type in this test to something less convoluted, 2009-02-18 04:25:04 +00:00
Internalize Teach the internalize pass to also internalize 2009-01-05 21:24:45 +00:00
IPConstantProp Modify some ipconstprop tests to also test with invokes. 2008-06-19 09:27:44 +00:00
JumpThreading Fix PR3353, infinitely jump threading an infinite loop make from switches. 2009-01-19 21:20:34 +00:00
LCSSA sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
LICM Remove GCSE and LoadVN from the testsuite. 2008-08-16 00:00:54 +00:00
LoopDeletion don't spew tons of stuff to the output. This testcase is *not* for 2008-12-03 06:41:50 +00:00
LoopIndexSplit Ignore DbgInfoIntrinsics. 2009-02-06 06:19:06 +00:00
LoopRotate Fix PR3408 by making a non-obvious assumption very obvious, and 2009-01-26 02:11:30 +00:00
LoopSimplify sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
LoopStrengthReduce Implement "superhero" strength reduction, or full strength 2009-02-20 04:17:46 +00:00
LoopUnroll Add -unroll-allow-partial command line option that enabled the loop unroller to 2008-07-29 13:21:23 +00:00
LoopUnswitch Actually test something. Use PR3170 test case. 2008-12-08 23:44:46 +00:00
LowerInvoke sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
LowerSetJmp sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
LowerSwitch sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
Mem2Reg no need to print output 2008-10-27 06:56:35 +00:00
MemCpyOpt Fix two issues that Eli Friedman pointed out, where would misoptimized code like: 2008-06-01 22:26:26 +00:00
MergeFunc Fix tests not to emit IR output 2008-11-04 23:02:39 +00:00
PredicateSimplifier sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
PruneEH Do not inline functions with (dynamic) alloca into 2009-01-08 21:45:23 +00:00
RaiseAllocations sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
Reassociate Remove GCSE and LoadVN from the testsuite. 2008-08-16 00:00:54 +00:00
ScalarRepl Enable scalar replacement of AllocaInst whose one of the user is dbg info. 2009-02-10 07:00:59 +00:00
SCCP Fix PR3325, a miscompilation of invokes by IPSCCP. Patch by Jay Foad! 2009-01-14 21:01:16 +00:00
SimplifyCFG If llvm.dbg.region.end is disappearing then remove corresponding llvm.dbg.func.start also. 2009-02-11 01:29:06 +00:00
SimplifyLibCalls Mark strto* as readonly when the endptr is null. 2009-02-13 17:08:33 +00:00
SRETPromotion Add a basic test for the SRETPromotion pass. 2008-08-07 15:55:18 +00:00
StripSymbols sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
TailCallElim sabre brings to my attention that the 'tr' suffix is also obsolete 2008-05-20 21:00:03 +00:00
TailDup Revert 52223. 2008-06-12 20:55:39 +00:00