Dan Gohman f5a309e989 Use a sign-extend instead of a zero-extend when promoting a ... trip count value when the original loop iteration condition is signed and the canonical induction variable won't undergo signed overflow. This isn't required for correctness; it just preserves more information about original loop iteration values. Add a getTruncateOrSignExtend method to ScalarEvolution, following getTruncateOrZeroExtend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64918 91177308-0d34-0410-b5e6-96231b3b80d8		2009-02-18 17:22:41 +00:00
..
ADCE.cpp	Let instcombiner remove redundant dbg intrinsics.	2008-11-19 18:59:41 +00:00
BasicBlockPlacement.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
CMakeLists.txt	CMake: updated list of source files.	2008-11-05 00:11:22 +00:00
CodeGenPrepare.cpp	In CodeGenPrepare's debug output, use WriteAsOperand instead of	2009-02-13 17:45:12 +00:00
CondPropagate.cpp	Insert space to avoid warning and make code more readable.	2009-02-07 03:36:02 +00:00
ConstantProp.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
DCE.cpp	Eliminate several more unnecessary intptr_t casts.	2009-02-18 05:09:16 +00:00
DeadStoreElimination.cpp	Rename getABITypeSize to getTypePaddedSize, as	2009-01-12 20:38:59 +00:00
GVN.cpp	improve naming of values in GVN, patch by Jay Foad!	2009-02-12 07:00:35 +00:00
GVNPRE.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
IndVarSimplify.cpp	Use a sign-extend instead of a zero-extend when promoting a	2009-02-18 17:22:41 +00:00
InstructionCombining.cpp	commit a tweaked version of Daniel's patch for PR3599. We now	2009-02-17 20:47:23 +00:00
JumpThreading.cpp	Fix PR3353, infinitely jump threading an infinite loop make from switches.	2009-01-19 21:20:34 +00:00
LICM.cpp	This code doesn't actually use the ExitingBlocks list.	2009-02-12 16:36:26 +00:00
LoopDeletion.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopIndexSplit.cpp	LoopIndexSplit doesn't actually use ScalarEvolution.	2009-02-17 20:50:11 +00:00
LoopRotation.cpp	Rename getAnalysisToUpdate to getAnalysisIfAvailable.	2009-01-28 13:14:17 +00:00
LoopStrengthReduce.cpp	Fix a typo in a comment.	2009-02-18 00:08:39 +00:00
LoopUnroll.cpp	Rename getAnalysisToUpdate to getAnalysisIfAvailable.	2009-01-28 13:14:17 +00:00
LoopUnswitch.cpp	If "optimize for size" attribute is set then block non-trivial loop unswitches but allow trivial loop unswitches.	2009-02-03 22:04:27 +00:00
Makefile	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
MemCpyOptimizer.cpp	Rename getABITypeSize to getTypePaddedSize, as	2009-01-12 20:38:59 +00:00
PredicateSimplifier.cpp	Silence unused variable warnings.	2008-11-21 20:00:59 +00:00
Reassociate.cpp	Fix build failure.	2008-11-21 21:00:20 +00:00
Reg2Mem.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
Scalar.cpp
ScalarReplAggregates.cpp	Use early exits. Reduce indentation.	2009-02-10 19:28:07 +00:00
SCCP.cpp	Add the private linkage.	2009-01-15 20:18:42 +00:00
SimplifyCFGPass.cpp	Large mechanical patch.	2008-09-25 21:00:45 +00:00
SimplifyHalfPowrLibCalls.cpp	eliminate warning when asserts disabled.	2008-12-14 21:36:23 +00:00
SimplifyLibCalls.cpp	Update the list of function annotations for nocapture. All of these came up	2009-02-15 22:47:25 +00:00
TailDuplication.cpp	simplify code.	2008-11-27 22:56:14 +00:00
TailRecursionElimination.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00