Chris Lattner 662a872e15 When factoring multiply expressions across adds, factor both ... positive and negative forms of constants together. This allows us to compile: int foo(int x, int y) { return (x-y) + (x-y) + (x-y); } into: _foo: ## @foo subl %esi, %edi leal (%rdi,%rdi,2), %eax ret instead of (where the 3 and -3 were not factored): _foo: imull $-3, 8(%esp), %ecx imull $3, 4(%esp), %eax addl %ecx, %eax ret this started out as: movl 12(%ebp), %ecx imull $3, 8(%ebp), %eax subl %ecx, %eax subl %ecx, %eax subl %ecx, %eax ret This comes from PR5359. llvm-svn: 92381		2010-01-01 01:13:15 +00:00
..
ABCD.cpp	Fix DenseMap iterator constness.	2009-11-10 01:02:17 +00:00
ADCE.cpp
BasicBlockPlacement.cpp
CMakeLists.txt	remove the now dead condprop pass, PR3906.	2009-11-11 05:56:35 +00:00
CodeGenPrepare.cpp	Revert 91280-91283, 91286-91289, 91291, 91293, 91295-91296. It apparently introduced a non-deterministic behavior in the optimizer somewhere.	2009-12-17 09:39:49 +00:00
ConstantProp.cpp	remove a bunch of extraneous LLVMContext arguments	2009-11-06 04:27:31 +00:00
DCE.cpp
DeadStoreElimination.cpp	formatting cleanups.	2009-12-02 06:35:55 +00:00
GEPSplitter.cpp
GVN.cpp	split code that doesn't need to be templated out of IRBuilder into a new	2009-12-28 21:28:46 +00:00
IndVarSimplify.cpp	Add Loop contains utility methods for testing whether a loop	2009-12-18 01:24:09 +00:00
InstructionCombining.cpp	Add suggested parentheses.	2009-12-21 23:27:57 +00:00
JumpThreading.cpp	Metadata.h doesn't need to include ValueHandle.h anymore.	2009-12-28 08:20:46 +00:00
LICM.cpp	Add Loop contains utility methods for testing whether a loop	2009-12-18 01:24:09 +00:00
LoopDeletion.cpp	LoopDeletion depends on loops having dedicated exits.	2009-11-05 21:47:04 +00:00
LoopIndexSplit.cpp	Add Loop contains utility methods for testing whether a loop	2009-12-18 01:24:09 +00:00
LoopRotation.cpp	Update various Loop optimization passes to cope with the possibility that	2009-11-05 21:11:53 +00:00
LoopStrengthReduce.cpp	Remove dump routine and the associated Debug.h from a header. Patch up	2009-12-23 22:58:38 +00:00
LoopUnrollPass.cpp	Replace LoopUnrollPass.cpp's custom code-size estimation code using	2009-10-31 14:54:17 +00:00
LoopUnswitch.cpp	Add Loop contains utility methods for testing whether a loop	2009-12-18 01:24:09 +00:00
Makefile
MemCpyOptimizer.cpp
Reassociate.cpp	When factoring multiply expressions across adds, factor both	2010-01-01 01:13:15 +00:00
Reg2Mem.cpp
Scalar.cpp	remove the now dead condprop pass, PR3906.	2009-11-11 05:56:35 +00:00
ScalarReplAggregates.cpp	Fix the Convert to scalar to not insert dead loads in the store case. The	2009-12-22 19:33:28 +00:00
SCCP.cpp	Fix a use of an invalidated iterator in the case where there are multiple	2009-11-23 16:13:39 +00:00
SCCVN.cpp	Eliminte unnecessary uses of <cstdio>.	2009-12-18 03:25:51 +00:00
SimplifyCFGPass.cpp	Implement PR5795 by merging duplicated return blocks. This could go further	2009-12-22 06:07:30 +00:00
SimplifyHalfPowrLibCalls.cpp	improve portability to avoid conflicting with std::next in c++'0x.	2009-12-03 00:50:42 +00:00
SimplifyLibCalls.cpp	move an optimization for memcmp out of simplifylibcalls and into	2009-12-24 00:37:38 +00:00
TailDuplication.cpp	remove a bunch of extraneous LLVMContext arguments	2009-11-06 04:27:31 +00:00
TailRecursionElimination.cpp	Improve tail call elimination to handle the switch statement.	2009-11-07 21:10:15 +00:00