Louis Gerbarg 5fb3c84898 Retain alignment requirements for load->selects modified by DAGCombine ... DAGCombine may choose to rewrite graphs where two loads feed a select into graphs where a select of two addresses feed a load. While it sanity checks the loads to make sure they are broadly equivalent it currently just uses the alignment restriction of the left node. In cases where the right node has stronger alignment requiresment this may lead to bad codegen, such as generating an aligned load where an unaligned load is required. This patch makes the combine generate a load with an alignment that is the same as whichever is more restrictive of the two alignments. Tests included. rdar://17762530 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214322 91177308-0d34-0410-b5e6-96231b3b80d8		2014-07-30 18:24:41 +00:00
..
CMakeLists.txt
DAGCombiner.cpp	Retain alignment requirements for load->selects modified by DAGCombine	2014-07-30 18:24:41 +00:00
FastISel.cpp	AA metadata refactoring (introduce AAMDNodes)	2014-07-24 12:16:19 +00:00
FunctionLoweringInfo.cpp	[Modules] Remove potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:02:50 +00:00
InstrEmitter.cpp	[SDAG] Don't insert the VRBase into a mapping from SDValues when the def	2014-07-25 09:19:18 +00:00
InstrEmitter.h	Revert "Give internal classes hidden visibility."	2013-09-11 18:05:11 +00:00
LegalizeDAG.cpp	[SDAG] Add DEBUG logging to the legalizer, fixing a "bug" found by	2014-07-28 17:55:07 +00:00
LegalizeFloatTypes.cpp	ARM: fix @llvm.convert.from.fp16 on softfloat targets.	2014-07-29 09:56:38 +00:00
LegalizeIntegerTypes.cpp	AA metadata refactoring (introduce AAMDNodes)	2014-07-24 12:16:19 +00:00
LegalizeTypes.cpp	Make it possible for ints/floats to return different values from getBooleanContents()	2014-07-10 10:18:12 +00:00
LegalizeTypes.h	ARM: support legalisation of "fptrunc ... to half" operations.	2014-07-18 13:01:19 +00:00
LegalizeTypesGeneric.cpp	AA metadata refactoring (introduce AAMDNodes)	2014-07-24 12:16:19 +00:00
LegalizeVectorOps.cpp	[x86] Make vector legalization of extloads work more like the "normal"	2014-07-24 22:09:56 +00:00
LegalizeVectorTypes.cpp	Add support for scalarizing ctlz_zero_undef	2014-07-30 00:44:03 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp	Fix indenting.	2014-07-23 22:34:13 +00:00
ScheduleDAGFast.cpp	[Modules] Remove potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:02:50 +00:00
ScheduleDAGRRList.cpp	fixed typo	2014-07-14 18:21:07 +00:00
ScheduleDAGSDNodes.cpp	Convert SelectionDAG::MorphNodeTo to use ArrayRef.	2014-04-27 19:21:16 +00:00
ScheduleDAGSDNodes.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-16 04:21:27 +00:00
ScheduleDAGVLIW.cpp	The hazard recognizer only needs a subtarget, not a target machine	2014-06-13 22:38:52 +00:00
SDNodeDbgValue.h	This reapplies r207235 with an additional bugfixes caught by the msan	2014-04-25 20:49:25 +00:00
SelectionDAG.cpp	Add alignment value to allowsUnalignedMemoryAccess	2014-07-27 17:46:40 +00:00
SelectionDAGBuilder.cpp	Add alignment value to allowsUnalignedMemoryAccess	2014-07-27 17:46:40 +00:00
SelectionDAGBuilder.h	[stack protector] Fix a potential security bug in stack protector where the	2014-07-25 19:31:34 +00:00
SelectionDAGDumper.cpp	CodeGen: extend f16 conversions to permit types > float.	2014-07-17 10:51:23 +00:00
SelectionDAGISel.cpp	Revert "[C++11] Add predecessors(BasicBlock *) / successors(BasicBlock *) iterator ranges."	2014-07-21 17:06:51 +00:00
SelectionDAGPrinter.cpp	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
TargetLowering.cpp	SelectionDAG: Factor FP_TO_SINT lower code out of DAGLegalizer	2014-07-10 22:40:18 +00:00
TargetSelectionDAGInfo.cpp	Have TargetSelectionDAGInfo take a DataLayout initializer rather than	2014-06-06 19:04:48 +00:00