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bdaa375556
llvm-6502/lib/Target/AArch64
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Arnaud A. de Grandmaison bdaa375556 [AArch64] Implement add/adds/sub/subs/cmp/cmn with negative immediate aliases 
This patch teaches the AsmParser to accept add/adds/sub/subs/cmp/cmn
with a negative immediate operand and convert them as shown:

  add  Rd, Rn, -imm -> sub  Rd, Rn, imm
  sub  Rd, Rn, -imm -> add  Rd, Rn, imm
  adds Rd, Rn, -imm -> subs Rd, Rn, imm
  subs Rd, Rn, -imm -> adds Rd, Rn, imm
  cmp  Rn, -imm     -> cmn  Rn, imm
  cmn  Rn, -imm     -> cmp  Rn, imm

Those instructions are an alternate syntax available to assembly coders,
and are needed in order to support code already compiling with some other
assemblers (gas). They are documented in the "ARMv8 Instruction Set
Overview", in the "Arithmetic (immediate)" section. This makes llvm-mc
a programmer-friendly assembler !

This also fixes PR20978: "Assembly handling of adding negative numbers
not as smart as gas".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241166 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-01 15:05:58 +00:00
..
AsmParser [AArch64] Implement add/adds/sub/subs/cmp/cmn with negative immediate aliases 2015-07-01 15:05:58 +00:00
Disassembler Fix "the the" in comments. 2015-06-19 01:53:21 +00:00
InstPrinter Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
MCTargetDesc Optimize the creation of mapping symbols. 2015-06-26 11:31:13 +00:00
TargetInfo
Utils Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64.h [AArch64] Revert r239711 again. We need to discuss how to share code between AArch64 and ARM backend. 2015-06-15 01:56:40 +00:00
AArch64.td [AArch64] Rename v8.1a from "extension" to "architecture" 2015-04-01 14:49:29 +00:00
AArch64A53Fix835769.cpp Use new MachineInstr mayLoadOrStore() API. 2015-05-21 21:59:57 +00:00
AArch64A57FPLoadBalancing.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64AddressTypePromotion.cpp Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used. 2015-03-23 19:32:43 +00:00
AArch64AdvSIMDScalarPass.cpp MachineInstr: Change return value of getOpcode() to unsigned. 2015-05-18 20:27:55 +00:00
AArch64AsmPrinter.cpp Clean up redundant copies of Triple objects. NFC 2015-06-16 15:44:21 +00:00
AArch64BranchRelaxation.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64CallingConvention.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64CallingConvention.td Move DataLayout back to the TargetMachine from TargetSubtargetInfo 2015-01-26 19:03:15 +00:00
AArch64CleanupLocalDynamicTLSPass.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64CollectLOH.cpp Change range-based for-loops to be -Wrange-loop-analysis clean. 2015-04-15 01:21:15 +00:00
AArch64ConditionalCompares.cpp MachineInstr: Remove unused parameter. 2015-05-19 21:22:20 +00:00
AArch64ConditionOptimizer.cpp MachineInstr: Change return value of getOpcode() to unsigned. 2015-05-18 20:27:55 +00:00
AArch64DeadRegisterDefinitionsPass.cpp
AArch64ExpandPseudoInsts.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64FastISel.cpp Use MCSymbols for FastISel. 2015-06-23 12:21:54 +00:00
AArch64FrameLowering.cpp MachineInstr: Change return value of getOpcode() to unsigned. 2015-05-18 20:27:55 +00:00
AArch64FrameLowering.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64InstrAtomics.td
AArch64InstrFormats.td [AArch64] Implement add/adds/sub/subs/cmp/cmn with negative immediate aliases 2015-07-01 15:05:58 +00:00
AArch64InstrInfo.cpp Replace copy-pasted debug value skipping with MBB::getLastNonDebugInstr 2015-06-25 13:28:24 +00:00
AArch64InstrInfo.h name change: hasPattern() -> getMachineCombinerPatterns() ; NFC 2015-06-19 23:21:42 +00:00
AArch64InstrInfo.td [AArch64] Implement add/adds/sub/subs/cmp/cmn with negative immediate aliases 2015-07-01 15:05:58 +00:00
AArch64ISelDAGToDAG.cpp Re-commit of r238201 with fix for building with shared libraries. 2015-06-01 12:02:47 +00:00
AArch64ISelLowering.cpp Add op_values() to iterate over the SDValue operands of an SDNode. 2015-06-26 18:17:36 +00:00
AArch64ISelLowering.h [AArch64] Lower interleaved memory accesses to ldN/stN intrinsics. This patch also adds a function to calculate the cost of interleaved memory accesses. 2015-06-26 02:32:07 +00:00
AArch64LoadStoreOptimizer.cpp [AArch64] Remove an overly conservative check when generating store pairs. 2015-06-09 20:59:41 +00:00
AArch64MachineCombinerPattern.h
AArch64MachineFunctionInfo.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64MCInstLower.cpp Use MCSymbols for FastISel. 2015-06-23 12:21:54 +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 Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +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
AArch64PromoteConstant.cpp Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used. 2015-03-23 19:32:43 +00:00
AArch64RegisterInfo.cpp [AArch64] Add support for dynamic stack alignment 2015-04-09 08:49:47 +00:00
AArch64RegisterInfo.h [AArch64] Add support for dynamic stack alignment 2015-04-09 08:49:47 +00:00
AArch64RegisterInfo.td [AArch64] Add v8.1a atomic instructions 2015-06-02 10:58:41 +00:00
AArch64SchedA53.td
AArch64SchedA57.td [AArch64] Changes some SchedAlias to WriteRes for Cortex-A57. 2015-04-10 13:19:27 +00:00
AArch64SchedA57WriteRes.td
AArch64SchedCyclone.td
AArch64Schedule.td
AArch64SelectionDAGInfo.cpp Get the cached subtarget off the MachineFunction rather than 2015-02-20 08:39:06 +00:00
AArch64SelectionDAGInfo.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +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 Replace string GNU Triples with llvm::Triple in MCSubtargetInfo and create*MCSubtargetInfo(). NFC. 2015-06-10 12:11:26 +00:00
AArch64Subtarget.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
AArch64TargetMachine.cpp [AArch64] Lower interleaved memory accesses to ldN/stN intrinsics. This patch also adds a function to calculate the cost of interleaved memory accesses. 2015-06-26 02:32:07 +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] Lower interleaved memory accesses to ldN/stN intrinsics. This patch also adds a function to calculate the cost of interleaved memory accesses. 2015-06-26 02:32:07 +00:00
AArch64TargetTransformInfo.h [AArch64] Lower interleaved memory accesses to ldN/stN intrinsics. This patch also adds a function to calculate the cost of interleaved memory accesses. 2015-06-26 02:32:07 +00:00
CMakeLists.txt [AArch64] Revert r239711 again. We need to discuss how to share code between AArch64 and ARM backend. 2015-06-15 01:56:40 +00:00
LLVMBuild.txt Re-commit of r238201 with fix for building with shared libraries. 2015-06-01 12:02:47 +00:00
Makefile