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llvm-mirror/include/llvm/CodeGen
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Hans Wennborg 05b9db2476 Revert r314886 "[X86] Improvement in CodeGen instruction selection for LEAs (re-applying post required revision changes.)" 
It broke the Chromium / SQLite build; see PR34830.

> Summary:
>    1/  Operand folding during complex pattern matching for LEAs has been
>        extended, such that it promotes Scale to accommodate similar operand
>        appearing in the DAG.
>        e.g.
>          T1 = A + B
>          T2 = T1 + 10
>          T3 = T2 + A
>        For above DAG rooted at T3, X86AddressMode will no look like
>          Base = B , Index = A , Scale = 2 , Disp = 10
>
>    2/  During OptimizeLEAPass down the pipeline factorization is now performed over LEAs
>        so that if there is an opportunity then complex LEAs (having 3 operands)
>        could be factored out.
>        e.g.
>          leal 1(%rax,%rcx,1), %rdx
>          leal 1(%rax,%rcx,2), %rcx
>        will be factored as following
>          leal 1(%rax,%rcx,1), %rdx
>          leal (%rdx,%rcx)   , %edx
>
>    3/ Aggressive operand folding for AM based selection for LEAs is sensitive to loops,
>       thus avoiding creation of any complex LEAs within a loop.
>
> Reviewers: lsaba, RKSimon, craig.topper, qcolombet, jmolloy
>
> Reviewed By: lsaba
>
> Subscribers: jmolloy, spatel, igorb, llvm-commits
>
>     Differential Revision: https://reviews.llvm.org/D35014

llvm-svn: 314919
2017-10-04 17:54:06 +00:00
..
GlobalISel [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-09-29 21:55:49 +00:00
MIRParser
PBQP
Analysis.h
AsmPrinter.h Change encodeU/SLEB128 to pad to certain number of bytes 2017-09-15 20:34:47 +00:00
AtomicExpandUtils.h
BasicTTIImpl.h Revert "Use the basic cost if a GEP is not used as addressing mode" 2017-09-29 22:04:45 +00:00
CalcSpillWeights.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-09-29 21:55:49 +00:00
CallingConvLower.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-09-29 21:55:49 +00:00
CommandFlags.h Delete Default and JITDefault code models 2017-08-03 02:16:21 +00:00
DAGCombine.h
DFAPacketizer.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
DIE.h Mark dump() methods as const. NFC 2017-06-21 22:19:17 +00:00
DIEValue.def
DwarfStringPoolEntry.h
EdgeBundles.h
ExecutionDepsFix.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
ExpandReductions.h
FastISel.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
FaultMaps.h
FunctionLoweringInfo.h ISel: Fix FastISel of swifterror values 2017-06-15 17:34:42 +00:00
GCMetadata.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
GCMetadataPrinter.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
GCs.h
GCStrategy.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
IntrinsicLowering.h
ISDOpcodes.h Add llvm.codeview.annotation to implement MSVC __annotation 2017-09-05 20:14:58 +00:00
LatencyPriorityQueue.h Remove usages of deprecated std::unary_function and std::binary_function. 2017-09-14 18:33:25 +00:00
LazyMachineBlockFrequencyInfo.h
LexicalScopes.h Mark dump() methods as const. NFC 2017-06-21 22:19:17 +00:00
LinkAllAsmWriterComponents.h
LinkAllCodegenComponents.h
LiveInterval.h
LiveIntervalAnalysis.h
LiveIntervalUnion.h
LivePhysRegs.h [IfConversion] More simple, correct dead/kill liveness handling 2017-09-14 15:53:11 +00:00
LiveRangeEdit.h
LiveRegMatrix.h
LiveRegUnits.h Preserve existing regs when adding pristines to LivePhysRegs/LiveRegUnits 2017-09-08 16:29:50 +00:00
LiveStackAnalysis.h
LiveVariables.h
LowLevelType.h
MachineBasicBlock.h Remove usages of deprecated std::unary_function and std::binary_function. 2017-09-14 18:33:25 +00:00
MachineBlockFrequencyInfo.h
MachineBranchProbabilityInfo.h
MachineCombinerPattern.h
MachineConstantPool.h
MachineDominanceFrontier.h [Dominators] Change Roots type to SmallVector 2017-07-26 18:27:39 +00:00
MachineDominators.h [Dominators] Change Roots type to SmallVector 2017-07-26 18:27:39 +00:00
MachineFrameInfo.h Add "Restored" flag to CalleeSavedInfo 2017-08-10 16:17:32 +00:00
MachineFunction.h Add llvm.codeview.annotation to implement MSVC __annotation 2017-09-05 20:14:58 +00:00
MachineFunctionPass.h
MachineInstr.h Revert r314886 "[X86] Improvement in CodeGen instruction selection for LEAs (re-applying post required revision changes.)" 2017-10-04 17:54:06 +00:00
MachineInstrBuilder.h [DebugInfo] Add missing DW_OP_deref when an NRVO pointer is spilled 2017-09-15 21:49:56 +00:00
MachineInstrBundle.h
MachineInstrBundleIterator.h
MachineJumpTableInfo.h
MachineLoopInfo.h Use a BumpPtrAllocator for Loop objects 2017-09-28 02:45:42 +00:00
MachineMemOperand.h Add an ID field to StackObjects 2017-07-20 21:03:45 +00:00
MachineModuleInfo.h [CodeGen] Emit necessary .note sections for -fsplit-stack 2017-09-27 19:34:00 +00:00
MachineModuleInfoImpls.h [WebAssembly] Use __stack_pointer global when writing wasm binary 2017-06-16 23:59:10 +00:00
MachineOperand.h Pacify gcc's -Wnum-compare after r313775 2017-09-20 18:00:02 +00:00
MachineOptimizationRemarkEmitter.h This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 2017-09-15 20:10:09 +00:00
MachinePassRegistry.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-26 22:44:03 +00:00
MachinePostDominators.h [Dominators] Change Roots type to SmallVector 2017-07-26 18:27:39 +00:00
MachineRegionInfo.h
MachineRegisterInfo.h Cleanup some problems with LLVM_ENABLE_DUMP in release builds, and 2017-09-27 21:19:56 +00:00
MachineScheduler.h Cleanup some problems with LLVM_ENABLE_DUMP in release builds, and 2017-09-27 21:19:56 +00:00
MachineSSAUpdater.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-09-11 23:00:48 +00:00
MachineTraceMetrics.h Recommit [MachineCombiner] Update instruction depths incrementally for large BBs. 2017-09-20 11:54:37 +00:00
MachineValueType.h Revert r313782 "[TableGen] Add a DenseMapInfo for MachineValueType." 2017-09-21 04:54:59 +00:00
MachORelocation.h
MacroFusion.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-26 22:44:03 +00:00
MIRPrinter.h
MIRYamlMapping.h MIR: Serialize CaleeSavedInfo Restored flag 2017-09-28 18:52:14 +00:00
ParallelCG.h
Passes.h Revert "Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding"" 2017-10-03 16:59:13 +00:00
PBQPRAConstraint.h
PreISelIntrinsicLowering.h [CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-09-13 21:15:20 +00:00
PseudoSourceValue.h Add AddresSpace to PseudoSourceValue. 2017-09-14 20:53:51 +00:00
RegAllocPBQP.h
RegAllocRegistry.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
RegisterClassInfo.h
RegisterPressure.h
RegisterScavenging.h RegScavenging: Add scavengeRegisterBackwards() 2017-06-17 02:08:18 +00:00
RegisterUsageInfo.h
ResourcePriorityQueue.h Remove usages of deprecated std::unary_function and std::binary_function. 2017-09-14 18:33:25 +00:00
RuntimeLibcalls.def Move Runtime libcall definitions to a .def file 2017-07-19 21:53:30 +00:00
RuntimeLibcalls.h Move Runtime libcall definitions to a .def file 2017-07-19 21:53:30 +00:00
ScheduleDAG.h [CodeGen] Add dependency printer 2017-07-12 15:30:59 +00:00
ScheduleDAGInstrs.h [SystemZ, MachineScheduler] Improve post-RA scheduling. 2017-08-17 08:33:44 +00:00
ScheduleDAGMutation.h
ScheduleDFS.h
ScheduleHazardRecognizer.h
SchedulerRegistry.h
ScoreboardHazardRecognizer.h
SelectionDAG.h Revert r314886 "[X86] Improvement in CodeGen instruction selection for LEAs (re-applying post required revision changes.)" 2017-10-04 17:54:06 +00:00
SelectionDAGAddressAnalysis.h [CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-09-13 21:15:20 +00:00
SelectionDAGISel.h
SelectionDAGNodes.h [SelectionDAG] Teach simplifyDemandedBits to handle shifts by constant splat vectors 2017-09-25 19:26:08 +00:00
SelectionDAGTargetInfo.h [CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-09-13 21:15:20 +00:00
SlotIndexes.h
StackMaps.h
StackProtector.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-07 23:53:32 +00:00
TailDuplicator.h Add test case for r311511 2017-08-23 03:17:59 +00:00
TargetLoweringObjectFileImpl.h IR: Replace the "Linker Options" module flag with "llvm.linker.options" named metadata. 2017-06-12 20:10:48 +00:00
TargetPassConfig.h [TargetPassConfig] Feature generic options to setup start/stop-after/before 2017-07-31 18:24:07 +00:00
TargetSchedule.h Cleanup some problems with LLVM_ENABLE_DUMP in release builds, and 2017-09-27 21:19:56 +00:00
UnreachableBlockElim.h
ValueTypes.h [CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC). 2017-06-26 22:44:03 +00:00
ValueTypes.td
VirtRegMap.h [CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-09-13 21:15:20 +00:00
WinEHFuncInfo.h