Sanjay Patel 4cb228fdc8 [AArch64] fold 'isPositive' vector integer operations (PR26819) ...

This is one of the cases shown in:
https://llvm.org/bugs/show_bug.cgi?id=26819

Shift and negate is what InstCombine prefers to produce (and I tried to make it do more of that
in http://reviews.llvm.org/rL262424 ), so we should recognize that pattern as something that might
come from autovectorization even if it's unlikely to be produced from C NEON intrinsics.

The patch is based on the x86 equivalent:
http://reviews.llvm.org/rL262036

Differential Revision: http://reviews.llvm.org/D17834



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262623 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-03 15:56:08 +00:00

..

AsmParser

Move MCTargetAsmParser.h to llvm/MC/MCParser where it belongs.

2016-01-27 10:01:28 +00:00

Disassembler

Remove autoconf support

2016-01-26 21:29:08 +00:00

InstPrinter

Remove autoconf support

2016-01-26 21:29:08 +00:00

MCTargetDesc

AArch64: rename compact unwind forms back to UNWIND_ARM64_*. NFC.

2016-02-23 21:49:05 +00:00

TargetInfo

Remove autoconf support

2016-01-26 21:29:08 +00:00

Utils

Remove autoconf support

2016-01-26 21:29:08 +00:00

AArch64.h

[AArch64] Add pass to remove redundant copy after RA

2016-02-16 20:02:39 +00:00

AArch64.td

AArch64: remove CRC feature from Cyclone.

2016-02-24 18:10:17 +00:00

AArch64A53Fix835769.cpp

AArch64: Remove implicit ilist iterator conversions, NFC

2015-10-13 20:02:15 +00:00

AArch64A57FPLoadBalancing.cpp

[AArch64] Slight cleanup in FPLoadBalancing

2016-02-26 09:10:53 +00:00

AArch64AddressTypePromotion.cpp

Simplify some boolean conditional return statements in AArch64.

2016-02-29 22:50:49 +00:00

AArch64AdvSIMDScalarPass.cpp

AArch64: Remove implicit ilist iterator conversions, NFC

2015-10-13 20:02:15 +00:00

AArch64AsmPrinter.cpp

Clean up redundant copies of Triple objects. NFC

2015-06-16 15:44:21 +00:00

AArch64BranchRelaxation.cpp

AArch64: Remove implicit ilist iterator conversions, NFC

2015-10-13 20:02:15 +00:00

AArch64CallingConvention.h

Replace uint16_t with the MCPhysReg typedef in many places. A lot of physical register arrays already use this typedef.

2015-12-05 07:13:35 +00:00

AArch64CallingConvention.td

CXX_FAST_TLS calling convention: performance improvement for AArch64.

2015-12-16 21:04:19 +00:00

AArch64CallLowering.cpp

[GlobalISel] Re-apply r260922-260923 with MSVC-friendly code.

2016-02-16 19:26:02 +00:00

AArch64CallLowering.h

[GlobalISel] Re-apply r260922-260923 with MSVC-friendly code.

2016-02-16 19:26:02 +00:00

AArch64CleanupLocalDynamicTLSPass.cpp

Revert "CodeGen: MachineInstr::getIterator() => getInstrIterator(), NFC"

2016-02-22 20:49:58 +00:00

AArch64CollectLOH.cpp

[AArch64][CollectLOH] Remove an invalid assertion and add a test case exposing it.

2015-08-31 19:02:00 +00:00

AArch64ConditionalCompares.cpp

WIP: CodeGen: Use MachineInstr& in MachineInstrBundle.h, NFC

2016-02-27 17:05:33 +00:00

AArch64ConditionOptimizer.cpp

Fix AArch64ConditionOptimizer

2016-01-15 00:06:58 +00:00

AArch64DeadRegisterDefinitionsPass.cpp

[AArch64] Register AArch64DeadRegisterDefinition pass with LLVM pass manager.

2015-08-05 17:35:34 +00:00

AArch64ExpandPseudoInsts.cpp

[AArch64] Register (existing) AArch64ExpandPseudo pass with LLVM pass manager.

2015-08-05 14:22:53 +00:00

AArch64FastISel.cpp

Simplify some boolean conditional return statements in AArch64.

2016-02-29 22:50:49 +00:00

AArch64FrameLowering.cpp

[AArch64] Enable non-leaf frame pointer elimination.

2016-03-02 17:58:31 +00:00

AArch64FrameLowering.h

[AArch64] Clean up callee-save CFI emission. NFC.

2016-02-25 16:36:08 +00:00

AArch64InstrAtomics.td

Make use of isAtLeastRelease/Acquire in the ARM/AArch64 backends

2014-08-18 16:48:58 +00:00

AArch64InstrFormats.td

AArch64: Add missing schedinfo, check completeness for cyclone

2016-03-01 21:20:31 +00:00

AArch64InstrInfo.cpp

CodeGen: TII: Take MachineInstr& in predicate API, NFC

2016-02-23 02:46:52 +00:00

AArch64InstrInfo.h

[AArch64 MachineCombine] Enhance/Add support for general reassociation to reduce the critical path

2016-01-07 04:01:02 +00:00

AArch64InstrInfo.td

AArch64: Add missing schedinfo, check completeness for cyclone

2016-03-01 21:20:31 +00:00

AArch64ISelDAGToDAG.cpp

Simplify some boolean conditional return statements in AArch64.

2016-02-29 22:50:49 +00:00

AArch64ISelLowering.cpp

[AArch64] fold 'isPositive' vector integer operations (PR26819)

2016-03-03 15:56:08 +00:00

AArch64ISelLowering.h

[GlobalISel] Re-apply r260922-260923 with MSVC-friendly code.

2016-02-16 19:26:02 +00:00

AArch64LoadStoreOptimizer.cpp

[AArch64] Add support for Qualcomm Kryo CPU.

2016-02-12 15:51:51 +00:00

AArch64MachineFunctionInfo.h

[AArch64] Simplify callee-save register save/restore. NFC.

2016-02-01 16:29:19 +00:00

AArch64MCInstLower.cpp

Convert some AArch64 code to foreach loops. NFC.

2015-08-03 19:04:32 +00:00

AArch64MCInstLower.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

AArch64PBQPRegAlloc.cpp

CodeGen: Take MachineInstr& in SlotIndexes and LiveIntervals, NFC

2016-02-27 06:40:41 +00:00

AArch64PBQPRegAlloc.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

AArch64PerfectShuffle.h

Canonicalize header guards into a common format.

2014-08-13 16:26:38 +00:00

AArch64PromoteConstant.cpp

Simplify some boolean conditional return statements in AArch64.

2016-02-29 22:50:49 +00:00

AArch64RedundantCopyElimination.cpp

AArch64: Use MachineInstr& in guaranteesZeroRegInBlock(), NFC

2016-02-27 19:12:54 +00:00

AArch64RegisterInfo.cpp

[AArch64] Enable non-leaf frame pointer elimination.

2016-03-02 17:58:31 +00:00

AArch64RegisterInfo.h

CXX_FAST_TLS calling convention: performance improvement for AArch64.

2015-12-16 21:04:19 +00:00

AArch64RegisterInfo.td

[AArch64] Add ARMv8.2-A FP16 vector instructions

2015-12-08 12:16:10 +00:00

AArch64SchedA53.td

AArch64: Reenable CompleteModel for A53, A57 and Kryo models

2016-03-01 21:55:35 +00:00

AArch64SchedA57.td

AArch64: Reenable CompleteModel for A53, A57 and Kryo models

2016-03-01 21:55:35 +00:00

AArch64SchedA57WriteRes.td

[AArch64] Refines the Cortex-A57 Machine Model

2014-09-29 21:27:36 +00:00

AArch64SchedCyclone.td

AArch64: Add missing schedinfo, check completeness for cyclone

2016-03-01 21:20:31 +00:00

AArch64SchedKryo.td

AArch64: Reenable CompleteModel for A53, A57 and Kryo models

2016-03-01 21:55:35 +00:00

AArch64SchedKryoDetails.td

[AArch64] Add support for Qualcomm Kryo CPU.

2016-02-12 15:51:51 +00:00

AArch64SchedM1.td

AArch64: Add missing schedinfo, check completeness for cyclone

2016-03-01 21:20:31 +00:00

AArch64Schedule.td

AArch64: Add missing schedinfo, check completeness for cyclone

2016-03-01 21:20:31 +00:00

AArch64SelectionDAGInfo.cpp

Remove getDataLayout() from TargetSelectionDAGInfo (had no users)

2015-07-09 02:10:08 +00:00

AArch64SelectionDAGInfo.h

Rename TargetSelectionDAGInfo into SelectionDAGTargetInfo and move it to CodeGen/

2016-01-27 16:32:26 +00:00

AArch64StorePairSuppress.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

AArch64Subtarget.cpp

[GlobalISel] Re-apply r260922-260923 with MSVC-friendly code.

2016-02-16 19:26:02 +00:00

AArch64Subtarget.h

[GlobalISel] Re-apply r260922-260923 with MSVC-friendly code.

2016-02-16 19:26:02 +00:00

AArch64TargetMachine.cpp

[AArch64] Add pass to remove redundant copy after RA

2016-02-16 20:02:39 +00:00

AArch64TargetMachine.h

Replace string GNU Triples with llvm::Triple in TargetMachine. NFC.

2015-06-11 19:41:26 +00:00

AArch64TargetObjectFile.cpp

MC: Clean up MCExpr naming. NFC.

2015-05-30 01:25:56 +00:00

AArch64TargetObjectFile.h

[AsmPrinter][TLOF] 32-bit MachO support for replacing GOT equivalents

2015-03-06 13:49:05 +00:00

AArch64TargetTransformInfo.cpp

[AArch64] Reduce vector insert/extract cost for Kryo

2016-02-18 18:35:45 +00:00

AArch64TargetTransformInfo.h

constify the Function parameter to the TTI creation callback and

2015-09-16 23:38:13 +00:00

CMakeLists.txt

[AArch64] Add pass to remove redundant copy after RA

2016-02-16 20:02:39 +00:00

LLVMBuild.txt

[AArch64] Plug the beginning of the GlobalISel pipeline.

2016-02-11 19:35:06 +00:00