Duncan Sands 88c3df7afb Have GVN simplify instructions as it goes. For example, consider ... "%z = %x and %y". If GVN can prove that %y equals %x, then it turns this into "%z = %x and %x". With the new code, %z will be replaced with %x everywhere (and then deleted). Previously %z would be value numbered too, which is a waste of time. Also, while a clever value numbering algorithm would give %z the same value number as %x, our current one doesn't do so (at least I don't think it does). The new logic has an essentially equivalent effect to what you would get if %z was given the same value number as %x, i.e. it should make value numbering smarter. While there, get hold of target data once at the start rather than a gazillion times all over the place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118923 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-12 21:10:24 +00:00
..
ADCE.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
BasicBlockPlacement.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
CMakeLists.txt	Update CMake.	2010-10-08 02:30:03 +00:00
CodeGenPrepare.cpp	Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.	2010-10-29 17:29:13 +00:00
ConstantProp.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
CorrelatedValuePropagation.cpp	Give up on doing in-line instruction simplification during correlated value propagation. Instruction simplification	2010-10-29 21:05:17 +00:00
DCE.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
DeadStoreElimination.cpp	Enhance DSE to handle the case where a free call makes more than	2010-11-12 02:19:17 +00:00
GEPSplitter.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
GVN.cpp	Have GVN simplify instructions as it goes. For example, consider	2010-11-12 21:10:24 +00:00
IndVarSimplify.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
JumpThreading.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
LICM.cpp	Teach LICM and AliasSetTracker about AccessesArgumentsReadonly.	2010-11-09 19:58:21 +00:00
LoopDeletion.cpp	Passes do not need to recursively initialize passes that they preserve, if	2010-10-19 20:08:44 +00:00
LoopRotation.cpp	Passes do not need to recursively initialize passes that they preserve, if	2010-10-19 20:08:44 +00:00
LoopStrengthReduce.cpp	Passes do not need to recursively initialize passes that they preserve, if	2010-10-19 20:08:44 +00:00
LoopUnrollPass.cpp	Passes do not need to recursively initialize passes that they preserve, if	2010-10-19 20:08:44 +00:00
LoopUnswitch.cpp	Passes do not need to recursively initialize passes that they preserve, if	2010-10-19 20:08:44 +00:00
LowerAtomic.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
Makefile	make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.	2010-01-24 20:43:08 +00:00
MemCpyOptimizer.cpp	Reapply r116831 and r116839, converting AliasAnalysis to use	2010-10-19 22:54:46 +00:00
Reassociate.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
Reg2Mem.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
Scalar.cpp	Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.	2010-10-07 23:29:37 +00:00
ScalarReplAggregates.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
SCCP.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
SimplifyCFGPass.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
SimplifyHalfPowrLibCalls.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
SimplifyLibCalls.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
Sink.cpp	Add helper functions for computing the Location of load, store,	2010-11-11 21:50:19 +00:00
TailDuplication.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00
TailRecursionElimination.cpp	Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which	2010-10-19 17:21:58 +00:00