llc-9 -march=arm -mcpu=help

llc-arm-mcpu-mattr.out

root@24fba99489cf:~/tvm_compiler# llc-9 -march=arm -mcpu=help
Available CPUs for this target:

  arm1020e      - Select the arm1020e processor.
  arm1020t      - Select the arm1020t processor.
  arm1022e      - Select the arm1022e processor.
  arm10e        - Select the arm10e processor.
  arm10tdmi     - Select the arm10tdmi processor.
  arm1136j-s    - Select the arm1136j-s processor.
  arm1136jf-s   - Select the arm1136jf-s processor.
  arm1156t2-s   - Select the arm1156t2-s processor.
  arm1156t2f-s  - Select the arm1156t2f-s processor.
  arm1176j-s    - Select the arm1176j-s processor.
  arm1176jz-s   - Select the arm1176jz-s processor.
  arm1176jzf-s  - Select the arm1176jzf-s processor.
  arm710t       - Select the arm710t processor.
  arm720t       - Select the arm720t processor.
  arm7tdmi      - Select the arm7tdmi processor.
  arm7tdmi-s    - Select the arm7tdmi-s processor.
  arm8          - Select the arm8 processor.
  arm810        - Select the arm810 processor.
  arm9          - Select the arm9 processor.
  arm920        - Select the arm920 processor.
  arm920t       - Select the arm920t processor.
  arm922t       - Select the arm922t processor.
  arm926ej-s    - Select the arm926ej-s processor.
  arm940t       - Select the arm940t processor.
  arm946e-s     - Select the arm946e-s processor.
  arm966e-s     - Select the arm966e-s processor.
  arm968e-s     - Select the arm968e-s processor.
  arm9e         - Select the arm9e processor.
  arm9tdmi      - Select the arm9tdmi processor.
  cortex-a12    - Select the cortex-a12 processor.
  cortex-a15    - Select the cortex-a15 processor.
  cortex-a17    - Select the cortex-a17 processor.
  cortex-a32    - Select the cortex-a32 processor.
  cortex-a35    - Select the cortex-a35 processor.
  cortex-a5     - Select the cortex-a5 processor.
  cortex-a53    - Select the cortex-a53 processor.
  cortex-a55    - Select the cortex-a55 processor.
  cortex-a57    - Select the cortex-a57 processor.
  cortex-a7     - Select the cortex-a7 processor.
  cortex-a72    - Select the cortex-a72 processor.
  cortex-a73    - Select the cortex-a73 processor.
  cortex-a75    - Select the cortex-a75 processor.
  cortex-a76    - Select the cortex-a76 processor.
  cortex-a76ae  - Select the cortex-a76ae processor.
  cortex-a8     - Select the cortex-a8 processor.
  cortex-a9     - Select the cortex-a9 processor.
  cortex-m0     - Select the cortex-m0 processor.
  cortex-m0plus - Select the cortex-m0plus processor.
  cortex-m1     - Select the cortex-m1 processor.
  cortex-m23    - Select the cortex-m23 processor.
  cortex-m3     - Select the cortex-m3 processor.
  cortex-m33    - Select the cortex-m33 processor.
  cortex-m35p   - Select the cortex-m35p processor.
  cortex-m4     - Select the cortex-m4 processor.
  cortex-m7     - Select the cortex-m7 processor.
  cortex-r4     - Select the cortex-r4 processor.
  cortex-r4f    - Select the cortex-r4f processor.
  cortex-r5     - Select the cortex-r5 processor.
  cortex-r52    - Select the cortex-r52 processor.
  cortex-r7     - Select the cortex-r7 processor.
  cortex-r8     - Select the cortex-r8 processor.
  cyclone       - Select the cyclone processor.
  ep9312        - Select the ep9312 processor.
  exynos-m1     - Select the exynos-m1 processor.
  exynos-m2     - Select the exynos-m2 processor.
  exynos-m3     - Select the exynos-m3 processor.
  exynos-m4     - Select the exynos-m4 processor.
  exynos-m5     - Select the exynos-m5 processor.
  generic       - Select the generic processor.
  iwmmxt        - Select the iwmmxt processor.
  krait         - Select the krait processor.
  kryo          - Select the kryo processor.
  mpcore        - Select the mpcore processor.
  mpcorenovfp   - Select the mpcorenovfp processor.
  sc000         - Select the sc000 processor.
  sc300         - Select the sc300 processor.
  strongarm     - Select the strongarm processor.
  strongarm110  - Select the strongarm110 processor.
  strongarm1100 - Select the strongarm1100 processor.
  strongarm1110 - Select the strongarm1110 processor.
  swift         - Select the swift processor.
  xscale        - Select the xscale processor.

Available features for this target:

  32bit                    - Prefer 32-bit Thumb instrs.
  8msecext                 - Enable support for ARMv8-M Security Extensions.
  a12                      - Cortex-A12 ARM processors.
  a15                      - Cortex-A15 ARM processors.
  a17                      - Cortex-A17 ARM processors.
  a32                      - Cortex-A32 ARM processors.
  a35                      - Cortex-A35 ARM processors.
  a5                       - Cortex-A5 ARM processors.
  a53                      - Cortex-A53 ARM processors.
  a55                      - Cortex-A55 ARM processors.
  a57                      - Cortex-A57 ARM processors.
  a7                       - Cortex-A7 ARM processors.
  a72                      - Cortex-A72 ARM processors.
  a73                      - Cortex-A73 ARM processors.
  a75                      - Cortex-A75 ARM processors.
  a76                      - Cortex-A76 ARM processors.
  a8                       - Cortex-A8 ARM processors.
  a9                       - Cortex-A9 ARM processors.
  aclass                   - Is application profile ('A' series).
  acquire-release          - Has v8 acquire/release (lda/ldaex  etc) instructions.
  aes                      - Enable AES support.
  armv2                    - ARMv2 architecture.
  armv2a                   - ARMv2a architecture.
  armv3                    - ARMv3 architecture.
  armv3m                   - ARMv3m architecture.
  armv4                    - ARMv4 architecture.
  armv4t                   - ARMv4t architecture.
  armv5t                   - ARMv5t architecture.
  armv5te                  - ARMv5te architecture.
  armv5tej                 - ARMv5tej architecture.
  armv6                    - ARMv6 architecture.
  armv6-m                  - ARMv6m architecture.
  armv6j                   - ARMv7a architecture.
  armv6k                   - ARMv6k architecture.
  armv6kz                  - ARMv6kz architecture.
  armv6s-m                 - ARMv6sm architecture.
  armv6t2                  - ARMv6t2 architecture.
  armv7-a                  - ARMv7a architecture.
  armv7-m                  - ARMv7m architecture.
  armv7-r                  - ARMv7r architecture.
  armv7e-m                 - ARMv7em architecture.
  armv7k                   - ARMv7a architecture.
  armv7s                   - ARMv7a architecture.
  armv7ve                  - ARMv7ve architecture.
  armv8-a                  - ARMv8a architecture.
  armv8-m.base             - ARMv8mBaseline architecture.
  armv8-m.main             - ARMv8mMainline architecture.
  armv8-r                  - ARMv8r architecture.
  armv8.1-a                - ARMv81a architecture.
  armv8.1-m.main           - ARMv81mMainline architecture.
  armv8.2-a                - ARMv82a architecture.
  armv8.3-a                - ARMv83a architecture.
  armv8.4-a                - ARMv84a architecture.
  armv8.5-a                - ARMv85a architecture.
  avoid-movs-shop          - Avoid movs instructions with shifter operand.
  avoid-partial-cpsr       - Avoid CPSR partial update for OOO execution.
  cheap-predicable-cpsr    - Disable +1 predication cost for instructions updating CPSR.
  crc                      - Enable support for CRC instructions.
  crypto                   - Enable support for Cryptography extensions.
  d32                      - Extend FP to 32 double registers.
  db                       - Has data barrier (dmb/dsb) instructions.
  dfb                      - Has full data barrier (dfb) instruction.
  disable-postra-scheduler - Don't schedule again after register allocation.
  dont-widen-vmovs         - Don't widen VMOVS to VMOVD.
  dotprod                  - Enable support for dot product instructions.
  dsp                      - Supports DSP instructions in ARM and/or Thumb2.
  execute-only             - Enable the generation of execute only code..
  expand-fp-mlx            - Expand VFP/NEON MLA/MLS instructions.
  exynos                   - Samsung Exynos processors.
  fp-armv8                 - Enable ARMv8 FP.
  fp-armv8d16              - Enable ARMv8 FP with only 16 d-registers.
  fp-armv8d16sp            - Enable ARMv8 FP with only 16 d-registers and no double precision.
  fp-armv8sp               - Enable ARMv8 FP with no double precision.
  fp16                     - Enable half-precision floating point.
  fp16fml                  - Enable full half-precision floating point fml instructions.
  fp64                     - Floating point unit supports double precision.
  fpao                     - Enable fast computation of positive address offsets.
  fpregs                   - Enable FP registers.
  fpregs16                 - Enable 16-bit FP registers.
  fpregs64                 - Enable 64-bit FP registers.
  fullfp16                 - Enable full half-precision floating point.
  fuse-aes                 - CPU fuses AES crypto operations.
  fuse-literals            - CPU fuses literal generation operations.
  hwdiv                    - Enable divide instructions in Thumb.
  hwdiv-arm                - Enable divide instructions in ARM mode.
  iwmmxt                   - ARMv5te architecture.
  iwmmxt2                  - ARMv5te architecture.
  krait                    - Qualcomm Krait processors.
  kryo                     - Qualcomm Kryo processors.
  lob                      - Enable Low Overhead Branch extensions.
  long-calls               - Generate calls via indirect call instructions.
  loop-align               - Prefer 32-bit alignment for loops.
  m3                       - Cortex-M3 ARM processors.
  mclass                   - Is microcontroller profile ('M' series).
  mp                       - Supports Multiprocessing extension.
  muxed-units              - Has muxed AGU and NEON/FPU.
  mve                      - Support M-Class Vector Extension with integer ops.
  mve.fp                   - Support M-Class Vector Extension with integer and floating ops.
  nacl-trap                - NaCl trap.
  neon                     - Enable NEON instructions.
  neon-fpmovs              - Convert VMOVSR, VMOVRS, VMOVS to NEON.
  neonfp                   - Use NEON for single precision FP.
  no-branch-predictor      - Has no branch predictor.
  no-movt                  - Don't use movt/movw pairs for 32-bit imms.
  no-neg-immediates        - Convert immediates and instructions to their negated or complemented equivalent when the immediate does not fit in the encoding..
  noarm                    - Does not support ARM mode execution.
  nonpipelined-vfp         - VFP instructions are not pipelined.
  perfmon                  - Enable support for Performance Monitor extensions.
  prefer-ishst             - Prefer ISHST barriers.
  prefer-vmovsr            - Prefer VMOVSR.
  prof-unpr                - Is profitable to unpredicate.
  r4                       - Cortex-R4 ARM processors.
  r5                       - Cortex-R5 ARM processors.
  r52                      - Cortex-R52 ARM processors.
  r7                       - Cortex-R7 ARM processors.
  ras                      - Enable Reliability, Availability and Serviceability extensions.
  rclass                   - Is realtime profile ('R' series).
  read-tp-hard             - Reading thread pointer from register.
  reserve-r9               - Reserve R9, making it unavailable as GPR.
  ret-addr-stack           - Has return address stack.
  sb                       - Enable v8.5a Speculation Barrier.
  sha2                     - Enable SHA1 and SHA256 support.
  slow-fp-brcc             - FP compare + branch is slow.
  slow-load-D-subreg       - Loading into D subregs is slow.
  slow-odd-reg             - VLDM/VSTM starting with an odd register is slow.
  slow-vdup32              - Has slow VDUP32 - prefer VMOV.
  slow-vgetlni32           - Has slow VGETLNi32 - prefer VMOV.
  slowfpvmlx               - Disable VFP / NEON MAC instructions.
  soft-float               - Use software floating point features..
  splat-vfp-neon           - Splat register from VFP to NEON.
  strict-align             - Disallow all unaligned memory access.
  swift                    - Swift ARM processors.
  thumb-mode               - Thumb mode.
  thumb2                   - Enable Thumb2 instructions.
  trustzone                - Enable support for TrustZone security extensions.
  use-aa                   - Use alias analysis during codegen.
  use-misched              - Use the MachineScheduler.
  v4t                      - Support ARM v4T instructions.
  v5t                      - Support ARM v5T instructions.
  v5te                     - Support ARM v5TE, v5TEj, and v5TExp instructions.
  v6                       - Support ARM v6 instructions.
  v6k                      - Support ARM v6k instructions.
  v6m                      - Support ARM v6M instructions.
  v6t2                     - Support ARM v6t2 instructions.
  v7                       - Support ARM v7 instructions.
  v7clrex                  - Has v7 clrex instruction.
  v8                       - Support ARM v8 instructions.
  v8.1a                    - Support ARM v8.1a instructions.
  v8.1m.main               - Support ARM v8-1M Mainline instructions.
  v8.2a                    - Support ARM v8.2a instructions.
  v8.3a                    - Support ARM v8.3a instructions.
  v8.4a                    - Support ARM v8.4a instructions.
  v8.5a                    - Support ARM v8.5a instructions.
  v8m                      - Support ARM v8M Baseline instructions.
  v8m.main                 - Support ARM v8M Mainline instructions.
  vfp2                     - Enable VFP2 instructions.
  vfp2d16                  - Enable VFP2 instructions with only 16 d-registers.
  vfp2d16sp                - Enable VFP2 instructions with only 16 d-registers and no double precision.
  vfp2sp                   - Enable VFP2 instructions with no double precision.
  vfp3                     - Enable VFP3 instructions.
  vfp3d16                  - Enable VFP3 instructions with only 16 d-registers.
  vfp3d16sp                - Enable VFP3 instructions with only 16 d-registers and no double precision.
  vfp3sp                   - Enable VFP3 instructions with no double precision.
  vfp4                     - Enable VFP4 instructions.
  vfp4d16                  - Enable VFP4 instructions with only 16 d-registers.
  vfp4d16sp                - Enable VFP4 instructions with only 16 d-registers and no double precision.
  vfp4sp                   - Enable VFP4 instructions with no double precision.
  virtualization           - Supports Virtualization extension.
  vldn-align               - Check for VLDn unaligned access.
  vmlx-forwarding          - Has multiplier accumulator forwarding.
  vmlx-hazards             - Has VMLx hazards.
  wide-stride-vfp          - Use a wide stride when allocating VFP registers.
  xscale                   - ARMv5te architecture.
  zcz                      - Has zero-cycle zeroing instructions.

Use +feature to enable a feature, or -feature to disable it.
For example, llc -mcpu=mycpu -mattr=+feature1,-feature2