Provided by: llvm-3.3_3.3-16ubuntu1_amd64 
NAME
llvm-mc - manual page for llvm-mc 3.3
DESCRIPTION
OVERVIEW: llvm machine code playground
USAGE: llvm-mc [options] <input file>
OPTIONS:
-I=<directory> - Directory of include files
-L - Don't discard temporary labels
-arch=<string> - Target arch to assemble for, see -version
for available targets
-asm-verbose - Add comments to directives.
-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
-cppfname=<function name> - Specify the name of the generated function
-cppfor=<string> - Specify the name of the thing to generate
-cppgen - Choose what kind of output to generate
=program
- Generate a complete program
=module
- Generate a module definition
=contents
- Generate contents of a module
=function
- Generate a function definition
=functions
- Generate all function definitions
=inline
- Generate an inline function
=variable
- Generate a variable definition
=type - Generate a type definition
-disable-cfi - Do not use .cfi_* directives
-disable-spill-fusing - Disable fusing of spill code into
instructions
Choose driver interface:
-drvnvcl - Nvidia OpenCL driver
-drvcuda - Nvidia CUDA driver
-drvtest - Plain Test
-enable-correct-eh-support - Make the -lowerinvoke pass insert
expensive, but correct, EH code
-enable-load-pre -
-enable-objc-arc-opts - enable/disable all ARC Optimizations
-enable-tbaa -
-fatal-assembler-warnings - Consider warnings as error
-fdata-sections - Emit data into separate sections
-fdebug-compilation-dir=<string> - Specifies the debug info's compilation dir
-ffunction-sections - Emit functions into separate sections
-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
-g - Generate dwarf debugging info for assembly
source files
-help - Display available options (-help-hidden for
more)
-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
-join-liveintervals - Coalesce copies (default=true)
-limit-float-precision=<uint> - Generate low-precision inline sequences for
some float libcalls
-main-file-name=<string> - Specifies the name we should consider the
input file
-mattr=<a1,+a2,-a3,...> - Target specific attributes (-mattr=help for
details)
-mc-no-exec-stack - File doesn't need an exec stack
-mc-relax-all - Relax all fixups
-mc-x86-disable-arith-relaxation - Disable relaxation of arithmetic
instruction for X86
-mcpu=<cpu-name> - Target a specific cpu type (-mcpu=help for
details)
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
-hdis - Disassemble strings of hex bytes printing
immediates as hex
-mips16-hard-float - MIPS: mips16 hard float enable.
-msp430-hwmult-mode - Hardware multiplier use mode
=no - Do not use hardware multiplier
=interrupts
- Assume hardware multiplier can be used inside interrupts
=use - Assume hardware multiplier cannot be used inside interrupts
-n - Don't assume assembly file starts in the
text section
-nvptx-emit-line-numbers - NVPTX Specific: Emit Line numbers even
without -G
-nvptx-emit-src - NVPTX Specific: Emit source line in ptx
file
-nvptx-fma-level=<int> - NVPTX Specific: FMA contraction (0: don't
do it 1: do it
2: do it aggressively
-nvptx-mad-enable - NVPTX Specific: Enable generating FMAD
instructions
-nvptx-prec-divf32=<int> - NVPTX Specifies: 0 use div.approx, 1 use
div.full, 2 use IEEE Compliant F32 div.rnd if avaiable.
-nvptx-prec-sqrtf32 - NVPTX Specific: 0 use sqrt.approx, 1 use
sqrt.rn.
-nvptx-sched4reg - NVPTX Specific: schedule for register
pressue
-nvvm-reflect-enable - NVVM reflection, enabled by default
-nvvm-reflect-list=<name=<int>> - A list of string=num assignments
-o=<filename> - Output filename
-output-asm-variant=<uint> - Syntax variant to use for output printing
-pre-RA-sched - Instruction schedulers available (before
register allocation):
=vliw-td
- VLIW scheduler
=list-ilp
- Bottom-up register pressure aware list scheduling which tries to balance ILP
and register pressure
=list-hybrid
- Bottom-up register pressure aware list scheduling which tries to balance
latency and register pressure
=source
- Similar to list-burr but schedules in source order when possible
=list-burr
- Bottom-up register reduction list scheduling
=linearize
- Linearize DAG, no scheduling
=fast - Fast suboptimal list scheduling
=default
- Best scheduler for the target
-print-after-all - Print IR after each pass
-print-before-all - Print IR before each pass
-print-machineinstrs=<pass-name> - Print machine instrs
-profile-estimator-loop-weight=<loop-weight> - Number of loop executions used for
profile-estimator
-profile-file=<filename> - Profile file loaded by
-profile-metadata-loader
-profile-info-file=<filename> - Profile file loaded by -profile-loader
-profile-verifier-noassert - Disable assertions
-regalloc - Register allocator to use
=default
- pick register allocator based on -O option
=basic - basic register allocator
=fast - fast register allocator
=greedy
- greedy register allocator
=pbqp - PBQP register allocator
-relocation-model - Choose relocation model
=default
- Target default relocation model
=static
- Non-relocatable code
=pic - Fully relocatable, position independent code
=dynamic-no-pic
- Relocatable external references, non-relocatable code
-show-encoding - Show instruction encodings
-show-inst - Show internal instruction representation
-show-inst-operands - Show instructions operands as parsed
-shrink-wrap - Shrink wrap callee-saved register
spills/restores
-spiller - Spiller to use: (default: standard)
=trivial
- trivial spiller
=inline
- inline spiller
-stats - Enable statistics output from program
(available with Asserts)
-struct-path-tbaa -
-time-passes - Time each pass, printing elapsed time for
each on exit
-triple=<string> - Target triple to assemble for, see -version
for available targets
-vectorize-loops - Run the Loop vectorization passes
-vectorize-slp - Run the SLP vectorization passes
-vectorize-slp-aggressive - Run the BB vectorization passes
-verify-dom-info - Verify dominator info (time consuming)
-verify-loop-info - Verify loop 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)
-version - Display the version of this program
-x86-asm-syntax - Choose style of code to emit from X86
backend:
=att - Emit AT&T-style assembly
=intel - Emit Intel-style assembly
-x86-early-ifcvt - Enable early if-conversion on X86
-x86-use-vzeroupper - Minimize AVX to SSE transition penalty
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.