Dan Gohman 02e4fa7d5f Strength reduction improvements. ... - Avoid attempting stride-reuse in the case that there are users that aren't addresses. In that case, there will be places where the multiplications won't be folded away, so it's better to try to strength-reduce them. - Several SSE intrinsics have operands that strength-reduction can treat as addresses. The previous item makes this more visible, as any non-address use of an IV can inhibit stride-reuse. - Make ValidStride aware of whether there's likely to be a base register in the address computation. This prevents it from thinking that things like stride 9 are valid on x86 when the base register is already occupied. Also, XFAIL the 2007-08-10-LEA16Use32.ll test; the new logic to avoid stride-reuse elimintes the LEA in the loop, so the test is no longer testing what it was intended to test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43231 91177308-0d34-0410-b5e6-96231b3b80d8		2007-10-22 20:40:42 +00:00
..
ADCE.cpp
BasicBlockPlacement.cpp
CodeGenPrepare.cpp
CondPropagate.cpp
ConstantProp.cpp
CorrelatedExprs.cpp
DCE.cpp
DeadStoreElimination.cpp
GCSE.cpp
GVN.cpp	Allow GVN to eliminate redundant calls to functions without side effects.	2007-10-18 19:39:33 +00:00
GVNPRE.cpp	explicit keywords.	2007-09-24 15:48:49 +00:00
IndVarSimplify.cpp	Move the SCEV object factors from being static members of the individual	2007-10-22 18:31:58 +00:00
InstructionCombining.cpp	Try again.	2007-10-18 19:52:32 +00:00
LICM.cpp	Use empty() member functions when that's what's being tested for instead	2007-10-03 19:26:29 +00:00
LoopIndexSplit.cpp	Handle multiple induction variables.	2007-09-25 18:24:48 +00:00
LoopRotation.cpp
LoopStrengthReduce.cpp	Strength reduction improvements.	2007-10-22 20:40:42 +00:00
LoopUnroll.cpp
LoopUnswitch.cpp	Do not walk invalid iterator.	2007-10-09 21:31:36 +00:00
LowerGC.cpp	Change llvm.gcroot to not init the root to null at runtime, this prevents	2007-09-12 17:53:10 +00:00
LowerPacked.cpp
Makefile
PredicateSimplifier.cpp	Fix optimization. %x = sub %x, %y does not imply that %y is zero.	2007-09-20 00:48:36 +00:00
Reassociate.cpp
Reg2Mem.cpp	Reg2Mem cleanup and optimizations:	2007-10-21 23:05:16 +00:00
ScalarReplAggregates.cpp	Don't do SRA for unions with long double fields.	2007-09-28 00:21:38 +00:00
SCCP.cpp	Use empty() member functions when that's what's being tested for instead	2007-10-03 19:26:29 +00:00
SimplifyCFG.cpp
TailDuplication.cpp
TailRecursionElimination.cpp	Prevent tailcallelim from breaking "recursive" calls to builtins.	2007-09-10 20:58:55 +00:00