LLVM integrated assembler - nanoMIPS port#1

Draft

farazs-github wants to merge 123 commits intonanomips-llvm13-submissionfrom

Commits on Aug 23, 2022

nMIPS: Refactor ArithLoginR32 to ArithLogicR32
Faraz Shahbazker
committed

Commits on Sep 15, 2022

nMIPS: re-organize instruction encodings by pools
Faraz Shahbazker
committed
Fix FeatureRelax for nanoMIPS subtarget
Faraz Shahbazker
committed

Commits on Sep 17, 2022

Add encodings for register-register arithmetic & logic instructions
Faraz Shahbazker
committed
Inhibit expansion of DIVU as a macro with zero-check for nanoMIPS
Faraz Shahbazker
committed

Commits on Sep 19, 2022

Add encodings for arith/logic instructions with immediate operand
Faraz Shahbazker
committed
Add interface to decode nanoMIPS general purpose registers for disassembly
Faraz Shahbazker
committed

Commits on Oct 9, 2022

Add encodings from trap (TEQ/TNE) instructions
Faraz Shahbazker
committed
Add 16-bit logic instructions, POOL16C_00
Faraz Shahbazker
committed
48-bit instructions
Faraz Shahbazker
committed
Add 16-bit and 4x4 ADDU variants
Faraz Shahbazker
committed
Add ADDIU with positive and negative immediate operands
Faraz Shahbazker
committed
Basic decoding logic for 16, 32 & 48-bit nanoMIPS instructions
Faraz Shahbazker
committed

Commits on Oct 11, 2022

Split encodings and descriptor classes
Faraz Shahbazker
committed
Fix immediate operand name in encoding classes
Faraz Shahbazker
committed

Commits on Oct 13, 2022

Add encodings for load/store instructions
Faraz Shahbazker
committed

Commits on Oct 22, 2022

Split encoding of 48-bit instructions from descriptors
Faraz Shahbazker
committed

Commits on Oct 27, 2022

Add load/store variations
Faraz Shahbazker
committed
TableGen hack to prefer smaller instructions
Faraz Shahbazker
committed

Commits on Nov 1, 2022

Add GP and SP relative loads & stores
Faraz Shahbazker
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Commits on Nov 3, 2022

Add nanoMIPS relocations
Faraz Shahbazker
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Commits on Nov 13, 2022

Add encodings with relocations for all branch/call instructions
Faraz Shahbazker
committed

Commits on Nov 18, 2022

Fix processor e_flag and instruction byte order for nanoMIPS
Faraz Shahbazker
committed
Add correct register names for nanoMIPS P32 ABI
Faraz Shahbazker
committed

Commits on Jan 3, 2023

NanoMips: Use "useIPRA" in TargetMachine to enable IPRA

Colin McEwan
authored and
Faraz Shahbazker
committed
MIPS: add debug location to stack adjustment

Colin McEwan
authored and
Faraz Shahbazker
committed
NanoMips: Fix IPRA issue #57482

Colin McEwan
authored and
Faraz Shahbazker
committed
NanoMips: Fix immZExt7Plus1 conditions

Colin McEwan
authored and
Faraz Shahbazker
committed
Add LUI and fix %hi/%lo operators
Faraz Shahbazker
committed
Fix ALUIPC encoding and fix %pcrel_hi operator
Faraz Shahbazker
committed
Fix encoding and decoding for 48-bit instructions
Faraz Shahbazker
committed
Switch to RELA relocations and fix generic data relocations for nanoMIPS
Faraz Shahbazker
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Update parsing for 48-bit instructions (LI/ADDIU)
Faraz Shahbazker
committed
Refactor AsmParser and improve check of memory addressing with $gp
Faraz Shahbazker
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Add a nanoMIPS parser variant to allow brackets in mnemonics
Faraz Shahbazker
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Revert "TableGen hack to prefer smaller instructions"
Faraz Shahbazker
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Clean-up extra instruction suffixes for 16-bit arithmetic
Faraz Shahbazker
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Add more load/store instructions to nanoMIPS load/store optimizer
Faraz Shahbazker
committed
Fix descriptor calls for scaled loads & stores
Faraz Shahbazker
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Add register constraints on 16-bit logic and arithmetic
Faraz Shahbazker
committed
Refactor register class names for consistency
Faraz Shahbazker
committed
Add 32-bit non-zero register class for ADDIU[32]
Faraz Shahbazker
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Fix 4x4 register decoding classes and methods
Faraz Shahbazker
committed
Fix encoding collisions
Faraz Shahbazker
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Add 3-bit nanoMIPS register set including zero
Faraz Shahbazker
committed
Fix load/store operands - base registers and offset ranges
Faraz Shahbazker
committed
Add encoding for MOVE_NM and refactor to MOVE16_NM
Faraz Shahbazker
committed
Clean-up redundant TODO comments
Faraz Shahbazker
committed
Add MOVEP[/REV] and 2R register encodings, fix 4x4Z encoding
Faraz Shahbazker
committed
Add LW/SW[4x4] and 4x4 base register encoding/decoding logic
Faraz Shahbazker
committed
Add LI[16] instruction and encoding
Faraz Shahbazker
committed
Add ANDI[16] encoding and decoding
Faraz Shahbazker
committed
Add BRSC and BALRSC encoding and decoding
Faraz Shahbazker
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Add encodings for MOVN/MOVZ
Faraz Shahbazker
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Add encodings for BEQC[16] and BNEC[16]
Faraz Shahbazker
committed
Add encoding/decoding for SLL[16] and SRL[16]
Faraz Shahbazker
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Add encodings for CLO, CLZ, SEB, SEH, LSA
Faraz Shahbazker
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Add encodings for DI/EI/ERET/ERETNC/DERET/NOP32/PAUSE/EHB/SYNC
Faraz Shahbazker
committed
Add SDBBP, SIGRIE, BREAK & SYSCALL
Faraz Shahbazker
committed

Commits on Jan 4, 2023

Commits on Jan 5, 2023

Add WRPGPR, RDPGPR and encoding for RDHWR
farazs-github
committed

Commits on Jan 6, 2023

Commits on Jan 7, 2023

Fix encodings for UALWM, UASWM and rewrite UALW/UASW as aliases
farazs-github
committed

Commits on Jan 14, 2023

Add encodings for 16/32 bit SAVE/RESTORE variants
farazs-github
committed

Commits on Jan 17, 2023

Commits on Jan 22, 2023

Commits on Jan 28, 2023

Commits on Jan 29, 2023

Commits on Jan 30, 2023

Commits on Feb 12, 2023

Commits on Feb 23, 2023

Commits on Feb 24, 2023

Uncomment tail-call match patterns
farazs-github
committed

Commits on Mar 20, 2023

Add assembler encoding tests (WIP)
farazs-github
committed