Chris Lattner 978796eaad Make GVN be more intelligent about redundant load ... elimination: when finding dependent load/stores, realize that they are the same if aliasing claims must alias instead of relying on the pointers to be exactly equal. This makes load elimination more aggressive. For example, on 403.gcc, we had: < 68 gvn - Number of instructions PRE'd < 152718 gvn - Number of instructions deleted < 49699 gvn - Number of loads deleted < 6153 memdep - Number of dirty cached non-local responses < 169336 memdep - Number of fully cached non-local responses < 162428 memdep - Number of uncached non-local responses now we have: > 64 gvn - Number of instructions PRE'd > 153623 gvn - Number of instructions deleted > 49856 gvn - Number of loads deleted > 5022 memdep - Number of dirty cached non-local responses > 159030 memdep - Number of fully cached non-local responses > 162443 memdep - Number of uncached non-local responses That's an extra 157 loads deleted and extra 905 other instructions nuked. This slows down GVN very slightly, from 3.91 to 3.96s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60314 91177308-0d34-0410-b5e6-96231b3b80d8		2008-12-01 01:31:36 +00:00
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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	don't call MergeBasicBlockIntoOnlyPred on a block whose only	2008-11-28 19:54:49 +00:00
CondPropagate.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
ConstantProp.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
DCE.cpp	simplify this logic.	2008-11-27 22:46:09 +00:00
DeadStoreElimination.cpp	Fix a thinko that manifested as a crash on clamav last night.	2008-11-29 20:29:04 +00:00
GVN.cpp	Make GVN be more intelligent about redundant load	2008-12-01 01:31:36 +00:00
GVNPRE.cpp	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
IndVarSimplify.cpp	Revert r60042. IndVarSimplify should check if APFloat is PPCDoubleDouble first before trying to convert it to an integer.	2008-11-26 01:11:57 +00:00
InstructionCombining.cpp	Implement ((A|B)&1)|(B&-2) -> (A&1) | B transformation. This also takes care of	2008-12-01 01:07:11 +00:00
JumpThreading.cpp	don't call MergeBasicBlockIntoOnlyPred on a block whose only	2008-11-28 19:54:49 +00:00
LICM.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopDeletion.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopIndexSplit.cpp	If the sign of exit condition and split condition does not match	2008-11-10 19:48:34 +00:00
LoopRotation.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopStrengthReduce.cpp	Temporarily revert r60195. It's causing an optimized bootstrap of llvm-gcc to fail.	2008-11-29 03:43:04 +00:00
LoopUnroll.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopUnswitch.cpp	Ignore conditions that are outside the loop.	2008-11-03 19:38:07 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00
MemCpyOptimizer.cpp	Eliminate the dropInstruction method, which is not needed any more.	2008-11-29 23:30:39 +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	C and Objective Caml bindings for mem2reg and reg2mem.	2008-03-20 17:16:03 +00:00
ScalarReplAggregates.cpp	Allow SROA of vectors. Removing this caused a	2008-11-04 20:54:03 +00:00
SCCP.cpp	Fix unused variable warnings.	2008-11-21 01:52:59 +00:00
SimplifyCFGPass.cpp	Large mechanical patch.	2008-09-25 21:00:45 +00:00
SimplifyHalfPowrLibCalls.cpp	Add a new pass to simplify specific half_powr function calls. This is	2008-11-04 23:41:45 +00:00
SimplifyLibCalls.cpp	Optimize memmove and memset into the LLVM builtins. Note that these	2008-11-30 08:32:11 +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