Provided by: llvm-11_11.1.0-6_amd64 bug

NAME

       llvm-mc - manual page for llvm-mc 11

DESCRIPTION

       OVERVIEW: llvm machine code playground

       USAGE: llvm-mc [options] <input file>

       OPTIONS:

       Color Options:

       --color                                                -     Use    colors    in    output
              (default=autodetect)

       General options:

       -I=<directory>                                     - Directory of include files

       --aarch64-neon-syntax=<value>                      - Choose style of  NEON  code  to  emit
              from AArch64 backend:

       =generic
              -   Emit generic NEON assembly

       =apple -   Emit Apple-style NEON assembly

       --amdgpu-bypass-slow-div                           - Skip 64-bit divide for dynamic 32-bit
              values

       --amdgpu-disable-loop-alignment                    - Do not align and prefetch loops

       --amdgpu-disable-power-sched                       - Disable scheduling  to  minimize  mAI
              power bursts

       --amdgpu-dpp-combine                               - Enable DPP combiner

       --amdgpu-dump-hsa-metadata                         - Dump AMDGPU HSA Metadata

       --amdgpu-enable-global-sgpr-addr                    -  Enable  use of SGPR regs for GLOBAL
              LOAD/STORE instructions

       --amdgpu-enable-merge-m0                           - Merge and hoist M0 initializations

       --amdgpu-promote-alloca-to-vector-limit=<uint>     - Maximum byte size to consider promote
              alloca to vector

       --amdgpu-reserve-vgpr-for-sgpr-spill                -  Allocates  one VGPR for future SGPR
              Spill

       --amdgpu-sdwa-peephole                             - Enable SDWA peepholer

       --amdgpu-verify-hsa-metadata                       - Verify AMDGPU HSA Metadata

       --amdgpu-vgpr-index-mode                           - Use  GPR  indexing  mode  instead  of
              movrel for vector indexing

       --arch=<string>                                     -  Target  arch  to  assemble for, see
              -version for available targets

       --arm-add-build-attributes                         -

       --arm-implicit-it=<value>                           -   Allow   conditional   instructions
              outdside of an IT block

       =always
              -   Accept in both ISAs, emit implicit ITs in Thumb

       =never -   Warn in ARM, reject in Thumb

       =arm   -   Accept in ARM, reject in Thumb

       =thumb -   Warn in ARM, emit implicit ITs in Thumb

       --asm-show-inst                                       -    Emit    internal    instruction
              representation to assembly file

              Action to perform:

       --as-lex                                          - Lex tokens from a .s file

       --assemble                                        - Assemble a .s file (default)

       --disassemble                                     - Disassemble strings of hex bytes

       --mdis                                            - Marked up disassembly  of  strings  of
              hex bytes

       --atomic-counter-update-promoted                    - Do counter update using atomic fetch
       add
              for promoted counters only

       --atomic-first-counter                              -  Use  atomic  fetch  add  for  first
              counter in a function (usually the entry counter)

       --bounds-checking-single-trap                      - Use one trap block per function

       --cfg-hide-deoptimize-paths                        -

       --cfg-hide-unreachable-paths                       -

       --compress-debug-sections=<value>                    -   Choose   DWARF   debug   sections
              compression:

       =none  -   No compression

       =zlib  -   Use zlib compression

       =zlib-gnu
              -   Use zlib-gnu compression (deprecated)

       --cost-kind=<value>                                - Target cost kind

       =throughput
              -   Reciprocal throughput

       =latency
              -   Instruction latency

       =code-size
              -   Code size

       --cvp-dont-add-nowrap-flags                        -

       --debugify-level=<value>                           - Kind of debug info to add

       =locations
              -   Locations only

       =location+variables
              -   Locations and Variables

       --debugify-quiet                                   - Suppress verbose debugify output

       --defsym=<string>                                  - Defines a symbol  to  be  an  integer
              constant

       --disable-promote-alloca-to-lds                    - Disable promote alloca to LDS

       --disable-promote-alloca-to-vector                 - Disable promote alloca to vector

       --do-counter-promotion                             - Do counter register promotion

       --dwarf-version=<int>                              - Dwarf version

       --dwarf64                                          - Generate debugging info in the 64-bit
              DWARF format

       --emscripten-cxx-exceptions-allowed=<string>       - The list of function names  in  which
              Emscripten-style     exception     handling     is    enabled    (see    emscripten
              EMSCRIPTEN_CATCHING_ALLOWED options)

       --enable-cse-in-irtranslator                       - Should enable CSE in irtranslator

       --enable-cse-in-legalizer                          - Should enable CSE in Legalizer

       --enable-emscripten-cxx-exceptions                    -    WebAssembly    Emscripten-style
              exception handling

       --enable-emscripten-sjlj                              -    WebAssembly    Emscripten-style
              setjmp/longjmp handling

       --enable-gvn-hoist                                 - Enable the GVN hoisting pass (default
              = off)

       --enable-gvn-memdep                                -

       --enable-gvn-sink                                   - Enable the GVN sinking pass (default
              = off)

       --enable-load-in-loop-pre                          -

       --enable-load-pre                                  -

       --enable-loop-simplifycfg-term-folding             -

       --enable-name-compression                            -   Enable    name/filename    string
              compression

       --fatal-warnings                                   - Treat warnings as errors

       --fdebug-compilation-dir=<string>                     -   Specifies   the   debug   info's
              compilation dir

       --fdebug-prefix-map=<= separated key-value pairs>  - Map file source paths in debug info

       --filetype=<value>                                 - Choose an output file type:

       =asm   -   Emit an assembly ('.s') file

       =null  -   Don't emit anything (for timing purposes)

       =obj   -   Emit a native object ('.o') file

       -g                                                 - Generate  dwarf  debugging  info  for
              assembly source files

       --gpsize=<uint>                                    - Global Pointer Addressing Size.
              The default size is 8.

       --hash-based-counter-split                          -  Rename counter variable of a comdat
              function based on cfg hash

       --hot-cold-split                                   - Enable hot-cold splitting pass

       --import-all-index                                 -  Import  all  external  functions  in
              index.

       --incremental-linker-compatible                     - When used with filetype=obj, emit an
              object file which can be used with an incremental linker

       --instcombine-code-sinking                         - Enable code sinking

       --instcombine-guard-widening-window=<uint>         - How wide  an  instruction  window  to
              bypass looking for another guard

       --instcombine-max-iterations=<uint>                  -   Limit   the   maximum  number  of
              instruction combining iterations

       --instcombine-max-num-phis=<uint>                  - Maximum  number  phis  to  handle  in
              intptr/ptrint folding

       --instcombine-maxarray-size=<uint>                  -  Maximum  array size considered when
              doing a combine

       --instcombine-negator-enabled                      - Should we attempt to sink negations?

       --instcombine-negator-max-depth=<uint>             - What is the maximal lookup depth when
              trying to check for viability of negation sinking.

       --instrprof-atomic-counter-update-all               -  Make  all  profile  counter updates
              atomic (for testing only)

       --internalize-public-api-file=<filename>           - A  file  containing  list  of  symbol
              names to preserve

       --internalize-public-api-list=<list>               - A list of symbol names to preserve

       --iterative-counter-promotion                       -  Allow  counter promotion across the
              whole loop nest.

       --large-code-model                                 - Create cfi directives that assume the
              code might be more than 2gb away

       --lto-embed-bitcode                                 -  Embed  LLVM bitcode in object files
              produced by LTO

       --lto-pass-remarks-filter=<regex>                  - Only record optimization remarks from
              passes whose names match the given regular expression

       --lto-pass-remarks-format=<format>                  -  The  format  used  for  serializing
              remarks (default: YAML)

       --lto-pass-remarks-output=<filename>               - Output filename for pass remarks

       --main-file-name=<string>                          - Specifies the name we should consider
              the input file

       --masm-integers                                     -  Enable binary and hex masm integers
              (0b110 and 0ABCh)

       --matrix-default-layout=<value>                    - Sets the default matrix layout

       =column-major
              -   Use column-major layout

       =row-major
              -   Use row-major layout

       --mattr=<a1,+a2,-a3,...>                             -    Target    specific    attributes
              (-mattr=help for details)

       --max-counter-promotions=<int>                       -   Max  number  of  allowed  counter
              promotions

       --max-counter-promotions-per-loop=<uint>           - Max  number  counter  promotions  per
              loop to avoid increasing register pressure too much

       --mc-relax-all                                      -  When  used with filetype=obj, relax
              all fixups in the emitted object file

       --mcpu=<cpu-name>                                   -   Target   a   specific   cpu   type
              (-mcpu=help for details)

       --memop-size-large=<uint>                           - Set large value thresthold in memory
              intrinsic size profiling. Value of 0 disables the large value profiling.

       --memop-size-range=<string>                        - Set  the  range  of  size  in  memory
              intrinsic calls to be profiled precisely, in a format of <start_val>:<end_val>

       --merror-missing-parenthesis                        - Error for missing parenthesis around
              predicate registers

       --merror-noncontigious-register                    - Error for register names that  aren't
              contigious

       --mhvx                                             - Enable Hexagon Vector eXtensions

       --mhvx=<value>                                     - Enable Hexagon Vector eXtensions

       =v60   -   Build for HVX v60

       =v62   -   Build for HVX v62

       =v65   -   Build for HVX v65

       =v66   -   Build for HVX v66

       =v67   -   Build for HVX v67

       --mips-compact-branches=<value>                    - MIPS Specific: Compact branch policy.

       =never
              -   Do not use compact branches if possible.

       =optimal
              -   Use compact branches where appropriate (default).

       =always
              -   Always use compact branches if possible.

       --mips16-constant-islands                          - Enable mips16 constant islands.

       --mips16-hard-float                                - Enable mips16 hard float.

       --mir-strip-debugify-only                           -  Should  mir-strip-debug  only strip
              debug info from debugified modules by default

       --mno-compound                                      -   Disable   looking   for   compound
              instructions for Hexagon

       --mno-fixup                                           -   Disable   fixing   up   resolved
              relocations for Hexagon

       --mno-ldc1-sdc1                                    - Expand  double  precision  loads  and
              stores to their single precision counterparts

       --mno-pairing                                         -   Disable   looking   for   duplex
              instructions for Hexagon

       --mwarn-missing-parenthesis                        - Warn for missing  parenthesis  around
              predicate registers

       --mwarn-noncontigious-register                      -  Warn  for register names that arent
              contigious

       --mwarn-sign-mismatch                              - Warn for  mismatching  a  signed  and
              unsigned value

       -n                                                  - Don't assume assembly file starts in
              the text section

       --no-deprecated-warn                               - Suppress all deprecated warnings

       --no-discriminators                                - Disable generation  of  discriminator
              information.

       --no-exec-stack                                    - File doesn't need an exec stack

       --no-warn                                          - Suppress all warnings

       --nvptx-sched4reg                                  - NVPTX Specific: schedule for register
              pressue

       -o=<filename>                                      - Output filename

       --output-asm-variant=<uint>                        - Syntax  variant  to  use  for  output
              printing

       --poison-checking-function-local                    -  Check  that  returns are non-poison
              (for testing)

       --position-independent                             - Position independent

       --preserve-comments                                 -  Preserve  Comments   in   outputted
              assembly

       --print-imm-hex                                     -  Prefer  hex  format  for  immediate
              values

       --r600-ir-structurize                              - Use StructurizeCFG IR pass

       --rdf-dump                                         -

       --rdf-limit=<uint>                                 -

       --relax-relocations                                - Emit  R_X86_64_GOTPCRELX  instead  of
              R_X86_64_GOTPCREL

       --runtime-counter-relocation                         -   Enable   relocating  counters  at
              runtime.

       --safepoint-ir-verifier-print-only                 -

       --sample-profile-check-record-coverage=<N>         - Emit a warning if  less  than  N%  of
              records in the input profile are matched to the IR.

       --sample-profile-check-sample-coverage=<N>          -  Emit  a  warning if less than N% of
              samples in the input profile are matched to the IR.

       --sample-profile-max-propagate-iterations=<uint>   - Maximum number of  iterations  to  go
              through when propagating sample block/edge weights through the CFG.

       --save-temp-labels                                 - Don't discard temporary labels

       --show-encoding                                    - Show instruction encodings

       --show-inst                                           -    Show    internal    instruction
              representation

       --show-inst-operands                               - Show instructions operands as parsed

       --speculative-counter-promotion-max-exiting=<uint> - The max number of exiting blocks of a
       loop to allow
              speculative counter promotion

       --speculative-counter-promotion-to-loop             -  When  the  option  is false, if the
       target block is in a loop, the promotion will be disallowed unless the promoted counter
              update can be further/iteratively promoted into an acyclic  region.

       --split-dwarf-file=<filename>                      - DWO output filename

       --summary-file=<string>                            - The summary file to use for  function
              importing.

       --tail-predication=<value>                         - MVE tail-predication options

       =disabled
              -   Don't tail-predicate loops

       =enabled-no-reductions
              -   Enable tail-predication, but not for reduction loops

       =enabled
              -   Enable tail-predication, including reduction loops

       =force-enabled-no-reductions
              -    Enable  tail-predication,  but  not  for reduction loops, and force this which
              might be unsafe

       =force-enabled
              -   Enable tail-predication, including reduction loops, and force this which  might
              be unsafe

       --threads=<int>                                    -

       --triple=<string>                                   -  Target  triple to assemble for, see
              -version for available targets

       --verify-region-info                               - Verify region info (time consuming)

       --vp-counters-per-site=<number>                     -  The  average  number   of   profile
              counters allocated per value profiling site.

       --vp-static-alloc                                   -  Do  static  counter  allocation for
              value profiler

       --x86-align-branch=<string>                        - Specify types of  branches  to  align
       (plus separated list of types):
              jcc      indicates conditional jumps fused    indicates fused conditional jumps jmp
              indicates direct unconditional jumps call     indicates direct and  indirect  calls
              ret      indicates rets indirect indicates indirect unconditional jumps

       --x86-align-branch-boundary=<uint>                  -  Control  how  the  assembler should
              align branches with NOP. If the boundary's size is not 0, it should be a power of 2
              and  no  less  than  32.  Branches  will be aligned to prevent from being across or
              against the boundary of  specified  size.  The  default  value  0  does  not  align
              branches.

       --x86-branches-within-32B-boundaries                 -   Align  selected  instructions  to
       mitigate negative performance impact of Intel's micro code update for errata skx102.
              May break assumptions about labels corresponding to  particular  instructions,  and
              should be used with caution.

       --x86-pad-max-prefix-size=<uint>                   - Maximum number of prefixes to use for
              padding

       Generic Options:

       --help                                                -    Display    available    options
              (--help-hidden for more)

       --help-list                                         -  Display  list  of available options
              (--help-list-hidden for more)

       --version                                          - Display the version of this program

       Polly Options: Configure the polly loop optimizer

       --polly                                            - Enable the polly optimizer  (only  at
              -O3)

       --polly-2nd-level-tiling                            -  Enable  a  2nd  level  loop of loop
              tiling

       --polly-ast-print-accesses                         - Print memory access functions

       --polly-context=<isl parameter set>                - Provide additional constraints on the
              context parameters

       --polly-dce-precise-steps=<int>                     -  The number of precise steps between
              two approximating iterations. (A value of -1 schedules another approximation  stage
              before the actual dead code elimination.

       --polly-delicm-max-ops=<int>                        -  Maximum number of isl operations to
              invest for lifetime analysis; 0=no limit

       --polly-detect-full-functions                      - Allow the detection of full functions

       --polly-dump-after                                   -    Dump    module    after    Polly
              transformations into a file suffixed with "-after"

       --polly-dump-after-file=<string>                      -    Dump    module    after   Polly
              transformations to the given file

       --polly-dump-before                                  -   Dump    module    before    Polly
              transformations into a file suffixed with "-before"

       --polly-dump-before-file=<string>                     -    Dump    module   before   Polly
              transformations to the given file

       --polly-enable-simplify                            - Simplify SCoP after optimizations

       --polly-ignore-func=<string>                       - Ignore functions that match a  regex.
              Multiple  regexes  can be comma separated. Scop detection will ignore all functions
              that match ANY of the regexes provided.

       --polly-isl-arg=<argument>                         - Option passed to ISL

       --polly-on-isl-error-abort                         - Abort if an isl error is encountered

       --polly-only-func=<string>                         - Only run on functions  that  match  a
              regex.  Multiple  regexes  can  be  comma separated. Scop detection will run on all
              functions that match ANY of the regexes provided.

       --polly-only-region=<identifier>                   - Only  run  on  certain  regions  (The
              provided identifier must appear in the name of the region's entry block

       --polly-only-scop-detection                        - Only run scop detection, but no other
              optimizations

       --polly-optimized-scops                            - Polly - Dump  polyhedral  description
              of Scops optimized with the isl scheduling optimizer and the set of post-scheduling
              transformations is applied on the schedule tree

       --polly-parallel                                   - Generate thread  parallel  code  (isl
              codegen only)

       --polly-parallel-force                              -  Force generation of thread parallel
              code ignoring any cost model

       --polly-pattern-matching-based-opts                 -  Perform  optimizations   based   on
              pattern matching

       --polly-process-unprofitable                        -  Process  scops that are unlikely to
              benefit from Polly optimizations.

       --polly-register-tiling                            - Enable register tiling

       --polly-report                                       -   Print   information   about   the
              activities of Polly

       --polly-show                                        - Highlight the code regions that will
              be optimized in a (CFG BBs and LLVM-IR instructions)

       --polly-show-only                                  - Highlight the code regions that  will
              be optimized in a (CFG only BBs)

       --polly-stmt-granularity=<value>                    - Algorithm to use for splitting basic
              blocks into multiple statements

       =bb    -   One statement per basic block

       =scalar-indep
              -   Scalar independence heuristic

       =store -   Store-level granularity

       --polly-target=<value>                             - The hardware to target

       =cpu   -   generate CPU code

       --polly-tiling                                     - Enable loop tiling

       --polly-vectorizer=<value>                         - Select the vectorization strategy

       =none  -   No Vectorization

       =polly -   Polly internal vectorizer

       =stripmine
              -   Strip-mine outer loops for the loop-vectorizer to trigger