xenial (1) llvm-mc-5.0.1.gz

Provided by: llvm-5.0_5.0-3~16.04.1_amd64 bug

NAME

       llvm-mc - manual page for llvm-mc 5.0

DESCRIPTION

       OVERVIEW: llvm machine code playground

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

       OPTIONS:

       General options:

       -I=<directory>                                    - Directory of include files

       -aarch64-neon-syntax                               -  Choose  style  of  NEON  code  to emit from AArch64
              backend:

       =generic
              -   Emit generic NEON assembly

       =apple -   Emit Apple-style NEON assembly

       -amdgpu-dump-comd                                 - Dump AMDGPU Code Object Metadata

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

       -amdgpu-sdwa-peephole                             - Enable SDWA peepholer

       -amdgpu-spill-sgpr-to-smem                        - Use scalar stores to  spill  SGPRs  if  supported  by
              subtarget

       -amdgpu-verify-comd                               - Verify AMDGPU Code Object 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                                   -  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-instrumentation                              -  Instrumentation  of  inline  assembly  and  assembly
              source files

       =none  -   no instrumentation at all

       =address
              -   instrument instructions with memory arguments

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

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

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

       -code-model                                       - Choose code model

       =default
              -   Target default code model

       =small -   Small code model

       =kernel
              -   Kernel code model

       =medium
              -   Medium code model

       =large -   Large code model

       -color                                            - use colored syntax highlighting (default=autodetect)

       -compress-debug-sections                          - Choose DWARF debug sections compression:

       =none  -   No compression

       =zlib  -   Use zlib compression

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

       -cvp-dont-process-adds                            -

       -debug-counter                                    - Comma separated list of debug counter skip and count

       =predicateinfo-rename
              -   Controls which variables are renamed with predicateinfo

       =newgvn-vn
              -   Controls which instructions are value numbered

       =newgvn-phi
              -   Controls which instructions we create phi of ops for

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

       -disable-spill-fusing                             - Disable fusing of spill code into instructions

              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

       -do-counter-promotion                             - Do counter register promotion

       -dwarf-version=<int>                              - Dwarf version

       -enable-implicit-null-checks                      - Fold null checks into faulting memory operations

       -enable-load-pre                                  -

       -enable-name-compression                          - Enable name string compression

       -enable-objc-arc-opts                             - enable/disable all ARC Optimizations

       -enable-packed-inlinable-literals                 - Enable packed inlinable literals (v2f16, v2i16)

       -enable-scoped-noalias                            -

       -enable-si-insert-waitcnts                        - Use new waitcnt insertion pass

       -enable-tbaa                                      -

       -exhaustive-register-search                       - Exhaustive Search for registers bypassing  the  depth
              and interference cutoffs of last chance recoloring

       -expensive-combines                               - Enable expensive instruction combines

       -fatal-warnings                                   - Treat warnings as errors

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

       -filetype                                         - 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

       -filter-print-funcs=<function names>              - Only print IR for functions whose name match this for
              all print-[before|after][-all] options

       -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

       -imp-null-check-page-size=<int>                   - The page size of the target in bytes

       -imp-null-max-insts-to-consider=<uint>            - The max number of instructions to  consider  hoisting
              loads over (the algorithm is quadratic over this number)

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

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

       -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.

       -join-liveintervals                               - Coalesce copies (default=true)

       -limit-float-precision=<uint>                     - Generate  low-precision  inline  sequences  for  some
              float libcalls

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

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

       -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

       -mfuture-regs                                     - Enable future registers

       -mips-compact-branches                            - MIPS Specific: Compact branch policy.

       =never
              -   Do not use compact branches if possible.

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

       =always
              -   Always use compact branches if possible.

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

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

       -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

       -pie-copy-relocations                             - PIE Copy Relocations

       -position-independent                             - Position independent

       -preserve-comments                                - Preserve Comments in outputted assembly

       -print-after-all                                  - Print IR after each pass

       -print-before-all                                 - Print IR before each pass

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

       -print-machineinstrs=<pass-name>                  - Print machine instrs

       -r600-ir-structurize                              - Use StructurizeCFG IR pass

       -rdf-dump                                         -

       -rdf-limit=<uint>                                 -

       -regalloc                                         - Register allocator to use

       =pbqp  -   PBQP register allocator

       =greedy
              -   greedy register allocator

       =fast  -   fast register allocator

       =basic -   basic register allocator

       =default
              -   pick register allocator based on -O option

       -relax-relocations                                - Emit R_X86_64_GOTPCRELX instead of R_X86_64_GOTPCREL

       -rewrite-map-file=<filename>                      - Symbol Rewrite Map

       -rng-seed=<seed>                                  - Seed for the random number generator

       -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-inline-hot-threshold=<N>          - Inlined functions that account for more  than  N%  of
              all samples collected in the parent function, will be inlined again.

       -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

       -simplify-mir                                     - Leave out unnecessary information when printing MIR

       -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.

       -stackmap-version=<int>                           - Specify the stackmap encoding version (default = 3)

       -static-func-full-module-prefix                    -  Use  full module build paths in the profile counter
              names for static functions.

       -static-func-strip-dirname-prefix=<uint>          - Strip specified level of directory name  from  source
              path in the profile counter name for static functions.

       -stats                                            - Enable statistics output from program (available with
              Asserts)

       -stats-json                                       - Display statistics as json data

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

       -threads=<int>                                    -

       -time-passes                                      - Time each pass, printing elapsed  time  for  each  on
              exit

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

       -unfold-element-atomic-memcpy-max-elements=<uint> - Maximum number  of  elements  in  atomic  memcpy  the
              optimizer is allowed to unfold

       -verify-debug-info                                -

       -verify-dom-info                                  - Verify dominator info (time consuming)

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

       -verify-loop-lcssa                                - Verify loop lcssa form (time consuming)

       -verify-machine-dom-info                          - Verify machine dominator info (time consuming)

       -verify-regalloc                                  - Verify during register allocation

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

       -verify-scev                                      - Verify ScalarEvolution's backedge taken counts (slow)

       -verify-scev-maps                                   -  Verify  no  dangling  value  in  ScalarEvolution's
              ExprValueMap (slow)

       -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-asm-syntax                                   - Choose style of code to emit from X86 backend:

       =att   -   Emit AT&T-style assembly

       =intel -   Emit Intel-style assembly

       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

SEE ALSO

       The full documentation for llvm-mc is maintained as a Texinfo manual.  If the info and  llvm-mc  programs
       are properly installed at your site, the command

              info llvm-mc

       should give you access to the complete manual.