Jim Grosbach 51a0280d29 DAG: Combine (and (setne X, 0), (setne X, -1)) -> (setuge (add X, 1), 2) ... A common idiom is to use zero and all-ones as sentinal values and to check for both in a single conditional ("x != 0 && x != (unsigned)-1"). That generates code, for i32, like: testl %edi, %edi setne %al cmpl $-1, %edi setne %cl andb %al, %cl With this transform, we generate the simpler: incl %edi cmpl $1, %edi seta %al Similar improvements for other integer sizes and on other platforms. In general, combining the two setcc instructions into one is better. rdar://14689217 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188315 91177308-0d34-0410-b5e6-96231b3b80d8		2013-08-13 21:30:58 +00:00
..
CMakeLists.txt
DAGCombiner.cpp	DAG: Combine (and (setne X, 0), (setne X, -1)) -> (setuge (add X, 1), 2)	2013-08-13 21:30:58 +00:00
FastISel.cpp	Un-break the buildbot by tweaking the indirection flag.	2013-07-10 01:53:37 +00:00
FunctionLoweringInfo.cpp	Debug Info: clean up usage of Verify.	2013-06-28 05:43:10 +00:00
InstrEmitter.cpp	Reapply an improved version of r180816/180817.	2013-07-09 20:28:37 +00:00
InstrEmitter.h	Add -*- C++ -*- to InstrEmitter.h.	2013-07-17 18:53:29 +00:00
LegalizeDAG.cpp	Add ISD::FROUND for libm round()	2013-08-07 22:49:12 +00:00
LegalizeFloatTypes.cpp	Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void.	2013-08-13 17:54:56 +00:00
LegalizeIntegerTypes.cpp	Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void.	2013-08-13 17:54:56 +00:00
LegalizeTypes.cpp	Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void.	2013-08-13 17:54:56 +00:00
LegalizeTypes.h	Add ISD::FROUND for libm round()	2013-08-07 22:49:12 +00:00
LegalizeTypesGeneric.cpp	TargetLowering: Add getVectorIdxTy() function v2	2013-08-05 22:22:01 +00:00
LegalizeVectorOps.cpp	Add ISD::FROUND for libm round()	2013-08-07 22:49:12 +00:00
LegalizeVectorTypes.cpp	Add ISD::FROUND for libm round()	2013-08-07 22:49:12 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp	Cache the TargetLowering info object as a pointer.	2013-06-06 00:43:09 +00:00
ScheduleDAGFast.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
ScheduleDAGRRList.cpp	Add 'const' qualifier to some arrays.	2013-07-15 08:02:13 +00:00
ScheduleDAGSDNodes.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
ScheduleDAGSDNodes.h	Fix #includes, so we include only what we really need.	2013-02-20 00:26:25 +00:00
ScheduleDAGVLIW.cpp
SDNodeDbgValue.h
SelectionDAG.cpp	Change asserts at the top of getVectorShuffle to check that LHS and RHS have the same type as the result.	2013-08-09 04:37:24 +00:00
SelectionDAGBuilder.cpp	[SystemZ] Use CLC and IPM to implement memcmp	2013-08-12 10:28:10 +00:00
SelectionDAGBuilder.h	Fixed SelectionDAGBuilder.h C++ filetype declaration to use the canonical C++ instead of c++.	2013-08-12 21:02:02 +00:00
SelectionDAGDumper.cpp	Add ISD::FROUND for libm round()	2013-08-07 22:49:12 +00:00
SelectionDAGISel.cpp	Reimplement isPotentiallyReachable to make nocapture deduction much stronger.	2013-07-27 01:24:00 +00:00
SelectionDAGPrinter.cpp
TargetLowering.cpp	Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void.	2013-08-13 17:54:56 +00:00
TargetSelectionDAGInfo.cpp