Dan Gohman 4d8414f420 Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical ... induction variable when the addrec to be expanded does not require a wider type. This eliminates the need for IndVarSimplify to micro-manage SCEV expansions, because SCEVExpander now automatically expands them in the form that IndVarSimplify considers to be canonical. (LSR still micro-manages its SCEV expansions, because it's optimizing for the target, rather than for other optimizations.) Also, this uses the new getAnyExtendExpr, which has more clever expression simplification logic than the IndVarSimplify code it replaces, and this cleans up some ugly expansions in code such as the included masked-iv.ll testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73294 91177308-0d34-0410-b5e6-96231b3b80d8		2009-06-13 16:25:49 +00:00
..
ADCE.cpp	Allow readonly functions to unwind exceptions. Teach	2009-05-06 06:49:50 +00:00
BasicBlockPlacement.cpp
CMakeLists.txt
CodeGenPrepare.cpp	Fix CodeGenPrepare's address-mode sinking to handle unusual	2009-06-02 21:29:13 +00:00
CondPropagate.cpp	Avoid making the transformation enabled by my last patch if the new destinations have phi nodes.	2009-04-15 00:43:54 +00:00
ConstantProp.cpp
DCE.cpp
DeadStoreElimination.cpp	Rename PaddedSize to AllocSize, in the hope that this	2009-05-09 07:06:46 +00:00
GVN.cpp	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
GVNPRE.cpp	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
IndVarSimplify.cpp	Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical	2009-06-13 16:25:49 +00:00
InstructionCombining.cpp	Don't do (x - (y - z)) --> (x + (z - y)) on floating-point types, because	2009-06-12 19:23:25 +00:00
JumpThreading.cpp	Restore minor deletion.	2009-05-04 18:40:41 +00:00
LICM.cpp
LoopDeletion.cpp	Allow readonly functions to unwind exceptions. Teach	2009-05-06 06:49:50 +00:00
LoopIndexSplit.cpp	Fix loop-index-split to correctly preserve dominance frontiers. Part of	2009-05-22 03:22:46 +00:00
LoopRotation.cpp
LoopStrengthReduce.cpp	Simplify.	2009-06-05 22:39:21 +00:00
LoopUnroll.cpp	Adjust loop size estimate for full unrolling;	2009-04-20 22:19:33 +00:00
LoopUnswitch.cpp	Allow readonly functions to unwind exceptions. Teach	2009-05-06 06:49:50 +00:00
Makefile
MemCpyOptimizer.cpp	Rename PaddedSize to AllocSize, in the hope that this	2009-05-09 07:06:46 +00:00
PredicateSimplifier.cpp	Use cast<> instead of dyn_cast<> for things that are known to be	2009-06-06 17:49:35 +00:00
Reassociate.cpp
Reg2Mem.cpp
Scalar.cpp
ScalarReplAggregates.cpp	Use cast<> instead of dyn_cast<> for things that are known to be	2009-06-06 17:49:35 +00:00
SCCP.cpp	Don't crash on multiple return value with no obvious inserted value.	2009-06-06 23:13:08 +00:00
SimplifyCFGPass.cpp	second half of fix for PR4366: don't zap store to null of	2009-06-12 21:01:07 +00:00
SimplifyHalfPowrLibCalls.cpp
SimplifyLibCalls.cpp	Split the Add, Sub, and Mul instruction opcodes into separate	2009-06-04 22:49:04 +00:00
TailDuplication.cpp	Allow readonly functions to unwind exceptions. Teach	2009-05-06 06:49:50 +00:00
TailRecursionElimination.cpp	Allow readonly functions to unwind exceptions. Teach	2009-05-06 06:49:50 +00:00