Provided by: llvm-19-runtime_19.1.1-1ubuntu1~24.04.2_amd64 
NAME
lli - manual page for lli 19
DESCRIPTION
OVERVIEW: llvm interpreter & dynamic compiler
USAGE: lli [options] <input bitcode> <program arguments>...
OPTIONS:
Color Options:
--color - Use colors in output
(default=autodetect)
General options:
-O <char> - Optimization level. [-O0, -O1,
-O2, or -O3] (default = '-O2')
--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
--aarch64-use-aa - Enable the use of AA during
codegen.
--abort-on-max-devirt-iterations-reached - Abort when the max iterations for
devirtualization CGSCC repeat pass is reached
--addrsig - Emit an address-significance
table
--align-loops=<uint> - Default alignment for loops
--allow-ginsert-as-artifact - Allow G_INSERT to be considered
an artifact. Hack around AMDGPU test infinite loops.
--amdgpu-atomic-optimizer-strategy=<value> - Select DPP or Iterative strategy
for scan
=DPP - Use DPP operations for scan
=Iterative
- Use Iterative approach for scan
=None - Disable atomic optimizer
--amdgpu-bypass-slow-div - Skip 64-bit divide for dynamic
32-bit values
--amdgpu-disable-loop-alignment - Do not align and prefetch loops
--amdgpu-dpp-combine - Enable DPP combiner
--amdgpu-dump-hsa-metadata - Dump AMDGPU HSA Metadata
--amdgpu-enable-merge-m0 - Merge and hoist M0
initializations
--amdgpu-enable-power-sched - Enable scheduling to minimize mAI
power bursts
--amdgpu-kernarg-preload-count=<uint> - How many kernel arguments to
preload onto SGPRs
--amdgpu-promote-alloca-to-vector-limit=<uint> - Maximum byte size to consider
promote alloca to vector
--amdgpu-sdwa-peephole - Enable SDWA peepholer
--amdgpu-use-aa-in-codegen - Enable the use of AA during
codegen.
--amdgpu-verify-hsa-metadata - Verify AMDGPU HSA Metadata
--amdgpu-vgpr-index-mode - Use GPR indexing mode instead of
movrel for vector indexing
--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
--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)
--basic-block-address-map - Emit the basic block address map
section
--basic-block-sections=<all | <function list (file)> | labels | none> - Emit basic blocks into separate
sections
--bounds-checking-single-trap - Use one trap block per function
--bounds-checking-unique-traps - Always use one trap per check
--bpf-stack-size=<int> - Specify the BPF stack size limit
--cfg-hide-cold-paths=<number> - Hide blocks with relative
frequency below the given value
--cfg-hide-deoptimize-paths -
--cfg-hide-unreachable-paths -
--check-functions-filter=<regex> - Only emit checks for arguments of
functions whose names match the given regular expression
--code-model=<value> - Choose code model
=tiny - Tiny code model
=small - Small code model
=kernel
- Kernel code model
=medium
- Medium code model
=large - Large code model
--compile-threads=<uint> - Choose the number of compile
threads (jit-kind=orc-lazy only)
--cost-kind=<value> - Target cost kind
=throughput
- Reciprocal throughput
=latency
- Instruction latency
=code-size
- Code size
=size-latency
- Code size and latency
--crel - Use CREL relocation format for
ELF
--cs-profile-generate - Perform context sensitive PGO
instrumentation
--cs-profile-path=<string> - Context sensitive profile file
path
--data-sections - Emit data into separate sections
--debug-entry-values - Enable debug info for the debug
entry values.
--debug-info-correlate - Use debug info to correlate
profiles. (Deprecated, use -profile-correlate=debug-info)
--debugger-tune=<value> - Tune debug info for a particular
debugger
=gdb - gdb
=lldb - lldb
=dbx - dbx
=sce - SCE targets (e.g. PS4)
--debugify-func-limit=<ulong> - Set max number of processed
functions per pass.
--debugify-level=<value> - Kind of debug info to add
=locations
- Locations only
=location+variables
- Locations and Variables
--debugify-quiet - Suppress verbose debugify output
--denormal-fp-math=<value> - Select which denormal numbers the
code is permitted to require
=ieee - IEEE 754 denormal numbers
=preserve-sign
- the sign of a flushed-to-zero number is preserved in the sign of 0
=positive-zero
- denormals are flushed to positive zero
=dynamic
- denormals have unknown treatment
--denormal-fp-math-f32=<value> - Select which denormal numbers the
code is permitted to require for float
=ieee - IEEE 754 denormal numbers
=preserve-sign
- the sign of a flushed-to-zero number is preserved in the sign of 0
=positive-zero
- denormals are flushed to positive zero
=dynamic
- denormals have unknown treatment
--disable-auto-upgrade-debug-info - Disable autoupgrade of debug info
--disable-i2p-p2i-opt - Disables inttoptr/ptrtoint
roundtrip optimization
--disable-lazy-compilation - Disable JIT lazy compilation
--disable-promote-alloca-to-lds - Disable promote alloca to LDS
--disable-promote-alloca-to-vector - Disable promote alloca to vector
--disable-tail-calls - Never emit tail calls
--dlopen=<string> - Dynamic libraries to load before
linking
--do-counter-promotion - Do counter register promotion
--dot-cfg-mssa=<file name for generated dot file> - file name for generated dot file
--dwarf-version=<int> - Dwarf version
--dwarf64 - Generate debugging info in the
64-bit DWARF format
--emit-call-site-info - Emit call site debug information,
if debug information is enabled.
--emit-compact-unwind-non-canonical - Whether to try to emit Compact
Unwind for non canonical entries.
--emit-dwarf-unwind=<value> - Whether to emit DWARF EH frame
entries.
=always
- Always emit EH frame entries
=no-compact-unwind
- Only emit EH frame entries when compact unwind is not available
=default
- Use target platform default
--emscripten-cxx-exceptions-allowed=<string> - The list of function names in
which Emscripten-style exception handling is enabled (see emscripten EMSCRIPTEN_CATCHING_ALLOWED
options)
--emulated-tls - Use emulated TLS model
--enable-approx-func-fp-math - Enable FP math optimizations that
assume approx func
--enable-cache-manager - Use cache manager to save/load
modules
--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-jmc-instrument - Instrument functions with a call
to __CheckForDebuggerJustMyCode
--enable-jump-table-to-switch - Enable JumpTableToSwitch pass
(default = off)
--enable-load-in-loop-pre -
--enable-load-pre -
--enable-loop-simplifycfg-term-folding -
--enable-name-compression - Enable name/filename string
compression
--enable-no-infs-fp-math - Enable FP math optimizations that
assume no +-Infs
--enable-no-nans-fp-math - Enable FP math optimizations that
assume no NaNs
--enable-no-signed-zeros-fp-math - Enable FP math optimizations that
assume the sign of 0 is insignificant
--enable-no-trapping-fp-math - Enable setting the FP exceptions
build attribute not to use exceptions
--enable-pgo-force-function-attrs - Enable pass to set function
attributes based on PGO profiles
--enable-split-backedge-in-load-pre -
--enable-split-loopiv-heuristic - Enable loop iv regalloc heuristic
--enable-tlsdesc - Enable the use of TLS Descriptors
--enable-unsafe-fp-math - Enable optimizations that may
decrease FP precision
--enable-vtable-profile-use - If ThinLTO and WPD is enabled and
this option is true, vtable profiles will be used by ICP pass for more efficient indirect call
sequence. If false, type profiles won't be used.
--enable-vtable-value-profiling - If true, the virtual table
address will be instrumented to know the types of a C++ pointer. The information is used in
indirect call promotion to do selective vtable-based comparison.
--entry-function=<function> - Specify the entry function
(default = 'main') of the executable
--exception-model=<value> - exception model
=default
- default exception handling model
=dwarf - DWARF-like CFI based exception handling
=sjlj - SjLj exception handling
=arm - ARM EHABI exceptions
=wineh - Windows exception model
=wasm - WebAssembly exception handling
--expand-variadics-override=<value> - Override the behaviour of
expand-variadics
=unspecified
- Use the implementation defaults
=disable
- Disable the pass entirely
=optimize
- Optimise without changing ABI
=lowering
- Change variadic calling convention
--experimental-debug-variable-locations - Use experimental new
value-tracking variable locations
--experimental-debuginfo-iterators - Enable communicating debuginfo
positions through iterators, eliminating intrinsics. Has no effect if
--preserve-input-debuginfo-format=true.
--extra-archive=<input archive> - Extra archive files to be loaded
--extra-module=<input bitcode> - Extra modules to be loaded
--extra-object=<input object> - Extra object files to be loaded
--fake-argv0=<executable> - Override the 'argv[0]' value
passed into the executing program
--fatal-warnings - Treat warnings as errors
--fdpic - Use the FDPIC ABI
--filetype=<value> - Choose a file type (not all types
are supported by all targets):
=asm - Emit an assembly ('.s') file
=obj - Emit a native object ('.o') file
=null - Emit nothing, for performance testing
--float-abi=<value> - Choose float ABI type
=default
- Target default float ABI type
=soft - Soft float ABI (implied by -soft-float)
=hard - Hard float ABI (uses FP registers)
--force-dwarf-frame-section - Always emit a debug frame
section.
--force-interpreter - Force interpretation: disable JIT
--force-tail-folding-style=<value> - Force the tail folding style
=none - Disable tail folding
=data - Create lane mask for data only, using active.lane.mask intrinsic
=data-without-lane-mask
- Create lane mask with compare/stepvector
=data-and-control
- Create lane mask using active.lane.mask intrinsic, and use it for both data and control flow
=data-and-control-without-rt-check
- Similar to data-and-control, but remove the runtime check
=data-with-evl
- Use predicated EVL instructions for tail folding. If EVL is unsupported, fallback to
data-without-lane-mask.
--fp-contract=<value> - Enable aggressive formation of
fused FP ops
=fast - Fuse FP ops whenever profitable
=on - Only fuse 'blessed' FP ops.
=off - Only fuse FP ops when the result won't be affected.
--frame-pointer=<value> - Specify frame pointer elimination
optimization
=all - Disable frame pointer elimination
=non-leaf
- Disable frame pointer elimination for non-leaf frame
=reserved
- Enable frame pointer elimination, but reserve the frame pointer register
=none - Enable frame pointer elimination
--fs-profile-debug-bw-threshold=<uint> - Only show debug message if the
source branch weight is greater
than this value.
--fs-profile-debug-prob-diff-threshold=<uint> - Only show debug message if the
branch probility is greater than this value (in percentage).
--function-sections - Emit functions into separate
sections
--generate-merged-base-profiles - When generating nested
context-sensitive profiles, always generate extra base profile for function with all its context
profiles merged into it.
--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
--hexagon-add-build-attributes -
--hexagon-rdf-limit=<uint> -
--hot-cold-split - Enable hot-cold splitting pass
--hwasan-percentile-cutoff-hot=<int> - Hot percentile cuttoff.
--hwasan-random-rate=<number> - Probability value in the range
[0.0, 1.0] to keep instrumentation of a function.
--ignore-xcoff-visibility - Not emit the visibility attribute
for asm in AIX OS or give all symbols 'unspecified' visibility in XCOFF object file
--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-num-phis=<uint> - Maximum number phis to handle in
intptr/ptrint folding
--instcombine-max-sink-users=<uint> - Maximum number of undroppable
users for instruction sinking
--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.
--jd=<string> - Specifies the JITDylib to be used
for any subsequent -extra-module arguments.
--jit-kind=<value> - Choose underlying JIT kind.
=mcjit
- MCJIT
=orc - Orc JIT
=orc-lazy
- Orc-based lazy JIT.
--jit-linker=<value> - Choose the dynamic linker/loader.
=default
- Default for platform and JIT-kind
=rtdyld
- RuntimeDyld
=jitlink
- Orc-specific linker
--large-data-threshold=<ulong> - Choose large data threshold for
x86_64 medium code model
--lint-abort-on-error - In the Lint pass, abort on
errors.
--load=<pluginfilename> - Load the specified plugin
--lower-allow-check-percentile-cutoff-hot=<int> - Hot percentile cuttoff.
--lower-allow-check-random-rate=<number> - Probability value in the range
[0.0, 1.0] of unconditional pseudo-random checks.
--lto-aix-system-assembler=<path> - Path to a system assembler,
picked up on AIX only
--lto-embed-bitcode=<value> - Embed LLVM bitcode in object
files produced by LTO
=none - Do not embed
=optimized
- Embed after all optimization passes
=post-merge-pre-opt
- Embed post merge, but before optimizations
--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
--march=<string> - Architecture to generate code for
(see --version)
--matrix-default-layout=<value> - Sets the default matrix layout
=column-major
- Use column-major layout
=row-major
- Use row-major layout
--matrix-print-after-transpose-opt -
--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
--mcabac - tbd
--mcjit-remote-process=<filename> - Specify the filename of the
process to launch for remote MCJIT execution.
If none is specified, remote execution will be simulated in-process.
--mcpu=<cpu-name> - Target a specific cpu type
(-mcpu=help for details)
--meabi=<value> - Set EABI type (default depends on
triple):
=default
- Triple default EABI version
=4 - EABI version 4
=5 - EABI version 5
=gnu - EABI GNU
--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
=v68 - Build for HVX v68
=v69 - Build for HVX v69
=v71 - Build for HVX v71
=v73 - Build for HVX v73
--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
--misexpect-tolerance=<uint> - Prevents emitting diagnostics
when profile counts are within N% of the threshold..
--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
--mtriple=<string> - Override target triple for module
--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
--mxcoff-roptr - When set to true, const objects
with relocatable address values are put into the RO data section.
--no-deprecated-warn - Suppress all deprecated warnings
--no-discriminators - Disable generation of
discriminator information.
--no-integrated-as - Disable integrated assembler
--no-process-syms - Do not resolve lli process
symbols in JIT'd code
--no-type-check - Suppress type errors (Wasm)
--no-warn - Suppress all warnings
--nozero-initialized-in-bss - Don't place zero-initialized
symbols into bss section
--nvptx-sched4reg - NVPTX Specific: schedule for
register pressue
--object-cache-dir=<string> - Directory to store cached object
files (must be user writable)
--object-size-offset-visitor-max-visit-instructions=<uint> - Maximum number of instructions
for ObjectSizeOffsetVisitor to look at
--orc-runtime=<string> - Use ORC runtime from given path
--per-module-lazy - Performs lazy compilation on
whole module boundaries rather than individual functions
--pgo-block-coverage - Use this option to enable basic
block coverage instrumentation
--pgo-temporal-instrumentation - Use this option to enable
temporal instrumentation
--pgo-view-block-coverage-graph - Create a dot file of CFGs with
block coverage inference information
--poison-checking-function-local - Check that returns are non-poison
(for testing)
--print-pipeline-passes - Print a '-passes' compatible
string describing the pipeline (best-effort only).
--profile-correlate=<value> - Use debug info or binary file to
correlate profiles.
=<empty>
- No profile correlation
=debug-info
- Use debug info to correlate
=binary
- Use binary to correlate
--promote-alloca-vector-loop-user-weight=<uint> - The bonus weight of users of
allocas within loop when sorting profitable allocas
--r600-ir-structurize - Use StructurizeCFG IR pass
--relocation-model=<value> - Choose relocation model
=static
- Non-relocatable code
=pic - Fully relocatable, position independent code
=dynamic-no-pic
- Relocatable external references, non-relocatable code
=ropi - Code and read-only data relocatable, accessed PC-relative
=rwpi - Read-write data relocatable, accessed relative to static base
=ropi-rwpi
- Combination of ropi and rwpi
--remote-mcjit - Execute MCJIT'ed code in a
separate process.
--riscv-add-build-attributes -
--riscv-use-aa - Enable the use of AA during
codegen.
--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.
--sampled-instr-burst-duration=<uint> - Set the profile instrumentation
burst duration, which can range from 0 to one less than the value of 'sampled-instr-period'. This
number of samples will be recorded for each 'sampled-instr-period' count update. Setting to 1
enables simple sampling, in which case it is recommended to set 'sampled-instr-period' to a prime
number.
--sampled-instr-period=<uint> - Set the profile instrumentation
sample period. For each sample period, a fixed number of consecutive samples will be recorded. The
number is controlled by 'sampled-instr-burst-duration' flag. The default sample period of 65535 is
optimized for generating efficient code that leverages unsigned integer wrapping in overflow.
--sampled-instrumentation - Do PGO instrumentation sampling
--save-temp-labels - Don't discard temporary labels
--separate-named-sections - Use separate unique sections for
named sections
--skip-ret-exit-block - Suppress counter promotion if
exit blocks contain ret.
--soft-float - Generate software floating point
library calls
--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-machine-functions - Split out cold basic blocks from
machine functions based on profile information
--stack-size-section - Emit a section containing stack
size metadata
--stack-symbol-ordering - Order local stack symbols.
--stackrealign - Force align the stack to the
minimum alignment
--strict-dwarf - use strict dwarf
--summary-file=<string> - The summary file to use for
function importing.
--sve-tail-folding=<string> - Control the use of vectorisation
using tail-folding for SVE where the option is specified in the form (Initial)[+(Flag1|Flag2|...)]:
disabled (Initial) No loop types will vectorize using tail-folding default (Initial)
Uses the default tail-folding settings for the target CPU all (Initial) All legal loop
types will vectorize using tail-folding simple (Initial) Use tail-folding for simple loops
(not reductions or recurrences) reductions Use tail-folding for loops containing reductions
noreductions Inverse of above recurrences Use tail-folding for loops containing fixed order
recurrences norecurrences Inverse of above reverse Use tail-folding for loops requiring
reversed predicates noreverse Inverse of above
--swift-async-fp=<value> - Determine when the Swift async
frame pointer should be set
=auto - Determine based on deployment target
=always
- Always set the bit
=never - Never set the bit
--tail-predication=<value> - MVE tail-predication pass 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
--tailcallopt - Turn fastcc calls into tail calls
by (potentially) changing ABI.
--thinlto-assume-merged - Assume the input has already
undergone ThinLTO function importing and the other pre-optimization pipeline changes.
--thread-entry=<string> - calls the given entry-point on a
new thread (jit-kind=orc-lazy only)
--thread-model=<value> - Choose threading model
=posix
- POSIX thread model
=single
- Single thread model
--threads=<int> -
--tls-size=<uint> - Bit size of immediate TLS offsets
--type-based-intrinsic-cost - Calculate intrinsics cost based
only on argument types
--unique-basic-block-section-names - Give unique names to every basic
block section
--unique-section-names - Give unique names to every
section
--use-ctors - Use .ctors instead of
.init_array.
--use-undef - Use undef when generating
programs.
--vec-extabi - Enable the AIX Extended Altivec
ABI.
--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
--wasm-enable-eh - WebAssembly exception handling
--wasm-enable-exnref - WebAssembly exception handling
(exnref)
--wasm-enable-sjlj - WebAssembly setjmp/longjmp
handling
--write-experimental-debuginfo - Write debug info in the new
non-intrinsic format. Has no effect if --preserve-input-debuginfo-format=true.
--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
--x86-relax-relocations - Emit GOTPCRELX/REX_GOTPCRELX
instead of GOTPCREL on x86-64 ELF
--x86-sse2avx - Specify that the assembler should
encode SSE instructions with VEX prefix
--xcoff-traceback-table - Emit the XCOFF traceback table
--xray-function-index - Emit xray_fn_idx section
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 (with
-O1, -O2 or -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-matmul-opt - Perform optimizations of matrix
multiplications based on pattern matching
--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-postopts - Apply post-rescheduling
optimizations such as tiling (requires -polly-reschedule)
--polly-pragma-based-opts - Apply user-directed
transformation from metadata
--polly-pragma-ignore-depcheck - Skip the dependency check for
pragma-based transformations
--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-reschedule - Optimize SCoPs using ISL
--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-tc-opt - Perform optimizations of tensor
contractions based on pattern matching
--polly-tiling - Enable loop tiling
--polly-vectorizer=<value> - Select the vectorization strategy
=none - No Vectorization
=stripmine
- Strip-mine outer loops for the loop-vectorizer to trigger
lli 19 December 2024 LLI(1)