Evan Cheng d40d03e1bd Teach dag combine to fold the following transformation more aggressively: ... (OP (trunc x), (trunc y)) -> (trunc (OP x, y)) Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel. This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92849 91177308-0d34-0410-b5e6-96231b3b80d8		2010-01-06 19:38:29 +00:00
..
CallingConvLower.cpp	Change errs() to dbgs().	2010-01-05 01:24:50 +00:00
CMakeLists.txt	Rename SelectionDAGLowering to SelectionDAGBuilder, and rename	2009-11-23 18:04:58 +00:00
DAGCombiner.cpp	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
FastISel.cpp	Don't use the ISD::NodeType enum for SDNode opcodes, as CodeGen	2010-01-05 22:26:32 +00:00
FunctionLoweringInfo.cpp	Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer.	2010-01-05 13:12:22 +00:00
FunctionLoweringInfo.h	Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency.	2009-11-23 18:12:11 +00:00
InstrEmitter.cpp	Target-independent support for TargetFlags on BlockAddress operands,	2009-11-20 23:18:13 +00:00
InstrEmitter.h	Fix a typo in a comment.	2009-11-16 20:35:59 +00:00
LegalizeDAG.cpp	Change errs() to dbgs().	2010-01-05 01:24:53 +00:00
LegalizeFloatTypes.cpp	Change errs() to dbgs().	2010-01-05 01:24:48 +00:00
LegalizeIntegerTypes.cpp	Change errs() to dbgs().	2010-01-05 01:24:34 +00:00
LegalizeTypes.cpp	Change errs() to dbgs().	2010-01-05 01:25:04 +00:00
LegalizeTypes.h	Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG.	2009-12-11 21:31:27 +00:00
LegalizeTypesGeneric.cpp	Remove dead variable.	2009-12-28 01:00:12 +00:00
LegalizeVectorOps.cpp	Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG.	2009-12-11 21:31:27 +00:00
LegalizeVectorTypes.cpp	Change errs() to dbgs().	2010-01-05 01:24:40 +00:00
Makefile	remove dead makefile flags.	2009-06-24 05:29:56 +00:00
ScheduleDAGFast.cpp	Change errs() to dbgs().	2010-01-05 01:25:09 +00:00
ScheduleDAGList.cpp	Change errs() to dbgs().	2010-01-05 01:24:43 +00:00
ScheduleDAGRRList.cpp	The previous code could potentially cause a cycle. Allow ordering w.r.t. a 0 order.	2010-01-06 00:23:35 +00:00
ScheduleDAGSDNodes.cpp	Change errs() to dbgs().	2010-01-05 01:25:11 +00:00
ScheduleDAGSDNodes.h	Initial target-independent CodeGen support for BlockAddresses.	2009-10-30 01:27:03 +00:00
SDNodeOrdering.h	Allow 0 as an order number. Don't assign an order to formal arguments.	2009-12-22 21:35:02 +00:00
SelectionDAG.cpp	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
SelectionDAGBuilder.cpp	Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer.	2010-01-05 13:12:22 +00:00
SelectionDAGBuilder.h	whitespace cleanup	2010-01-01 23:37:34 +00:00
SelectionDAGISel.cpp	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00
SelectionDAGPrinter.cpp	Change errs() to dbgs().	2010-01-05 01:24:45 +00:00
TargetLowering.cpp	Teach dag combine to fold the following transformation more aggressively:	2010-01-06 19:38:29 +00:00