Chris Lattner 05cd886561 Transform any logical shift of a power of two into an exact/NUW shift when ... in a known-non-zero context. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131887 91177308-0d34-0410-b5e6-96231b3b80d8		2011-05-23 00:21:50 +00:00
..
ADCE	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
ArgumentPromotion	fix PR8932, a case where arg promotion could infinitely promote.	2011-01-16 08:09:24 +00:00
BlockPlacement	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
BranchFolding	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
CodeExtractor	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
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	implement PR9315, constant folding exp2 in terms of pow (since hosts without	2011-05-22 22:22:35 +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	Fix grammar in test.	2011-05-22 01:16:00 +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	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
GlobalOpt	fix PR9856, an incorrectly conservative assertion: a global can be	2011-05-22 07:15:13 +00:00
GVN	fix PR9841 by having GVN not process dead loads. This was	2011-05-22 07:03:34 +00:00
IndVarSimplify	Fixes PR9730: indvars: An asserting value handle still pointed to this value	2011-04-27 23:00:03 +00:00
Inline	Commit test change, forgotten as part of r131838.	2011-05-22 05:31:47 +00:00
InstCombine	Transform any logical shift of a power of two into an exact/NUW shift when	2011-05-23 00:21:50 +00:00
InstSimplify	The comparision "max(x,y)==x" is equivalent to "x>=y". Since the max is	2011-05-07 16:56:49 +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	Fix PR9815: I was trying to get out of "generating code and then	2011-05-22 17:39:56 +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	When forming an ICmpZero LSRUse, normalize the non-IV operand	2011-05-18 21:02:18 +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	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
LowerSetJmp	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
LowerSwitch	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
Mem2Reg	Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.	2010-06-04 22:27:30 +00:00
MemCpyOpt	Teach valuetracking that byval arguments with a specified alignment are	2011-05-23 00:03:39 +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	final step needed to resolve PR6627, which allows us to flatten the code down to	2011-04-28 18:15:47 +00:00
PruneEH	fix some failures my callgraph dump format change broke.	2010-04-23 18:38:40 +00:00
Reassociate	Fix reassociate to use a worklist instead of recursing when new	2011-04-12 00:11:56 +00:00
ScalarRepl	Fix PR9820: a read-only call differs from a load in that a load doesn't	2011-05-06 10:30:37 +00:00
SCCP	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
SimplifyCFG	Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior.	2011-05-22 16:24:18 +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	Don't do tail calls in a function that call setjmp. The stack might be	2011-05-16 03:05:33 +00:00
TailDup	Move few target-dependant tests to appropriate directories.	2011-05-06 18:24:46 +00:00