Chris Lattner 10e3ff7e5f change iterator invalidation avoidance to just move the iterator backward ... when something changes, instead of moving forward. This allows us to simplify memset lowering, inserting the memset at the end of the range of stuff we're touching instead of at the start. This, in turn, allows us to make use of the addressing instructions already used in the function instead of inserting our own. For example, we now codegen: %tmp41 = getelementptr [8 x i8]* %ref_idx, i32 0, i32 0 ; <i8*> [#uses=2] call void @llvm.memset.i64( i8* %tmp41, i8 -1, i64 8, i32 1 ) instead of: %tmp20 = getelementptr [8 x i8]* %ref_idx, i32 0, i32 7 ; <i8*> [#uses=1] %ptroffset = getelementptr i8* %tmp20, i64 -7 ; <i8*> [#uses=1] call void @llvm.memset.i64( i8* %ptroffset, i8 -1, i64 8, i32 1 ) llvm-svn: 48940		2008-03-29 05:15:47 +00:00
..
ADCE.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
BasicBlockPlacement.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
CodeGenPrepare.cpp	Handle getresult instructions in different basic blocks	2008-03-21 21:01:32 +00:00
CondPropagate.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
ConstantProp.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
DCE.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
DeadStoreElimination.cpp	Be more precise when eliminating pointers bue to memcpy's. This allows more	2008-02-04 04:53:00 +00:00
GCSE.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
GVN.cpp	change iterator invalidation avoidance to just move the iterator backward	2008-03-29 05:15:47 +00:00
GVNPRE.cpp	Make Transforms to be 4.3 warnings-clean	2008-02-20 11:26:25 +00:00
IndVarSimplify.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
InstructionCombining.cpp	Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.	2008-03-25 20:07:13 +00:00
LICM.cpp	Use empty() instead of comparing size() with zero.	2008-01-29 13:02:09 +00:00
LoopIndexSplit.cpp	PHI->removeIncomingValue may remove PHInode.	2008-03-27 17:32:46 +00:00
LoopRotation.cpp	Fix PR2028	2008-02-15 01:24:49 +00:00
LoopStrengthReduce.cpp	Remove dead options.	2008-03-19 22:02:26 +00:00
LoopUnroll.cpp	Add comment.	2008-03-19 23:05:52 +00:00
LoopUnswitch.cpp	Update the block cloner which fixes bugpoint on code using unwind_to (phew!)	2008-03-09 05:24:34 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00
PredicateSimplifier.cpp	De-tabify.	2008-02-26 10:53:30 +00:00
Reassociate.cpp	Don't include <map> in Pass.h, which doesn't need it. This requires	2008-03-21 23:51:57 +00:00
Reg2Mem.cpp	Remove attribution from file headers, per discussion on llvmdev.	2007-12-29 20:36:04 +00:00
Scalar.cpp	C and Objective Caml bindings for mem2reg and reg2mem.	2008-03-20 17:16:03 +00:00
ScalarReplAggregates.cpp	fix a bug Anders ran into where scalarrepl would crash when promoting	2008-02-29 07:12:06 +00:00
SCCP.cpp	Don't include <map> in Pass.h, which doesn't need it. This requires	2008-03-21 23:51:57 +00:00
SimplifyCFG.cpp	simplify code, no functionality change.	2008-02-14 07:39:01 +00:00
TailDuplication.cpp	Don't include <map> in Pass.h, which doesn't need it. This requires	2008-03-21 23:51:57 +00:00
TailRecursionElimination.cpp	Become multiple return value aware.	2008-03-11 17:33:32 +00:00