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-indirect-call-specialization-threshold=<uint> - A threshold controls whether an indirect call will be specialized
--amdgpu-kernarg-preload - Enable preload kernel arguments to SGPRs
--amdgpu-kernarg-preload-count=<uint> - How many kernel arguments to preload onto SGPRs
--amdgpu-module-splitting-max-depth=<uint> - maximum search depth. 0 forces a greedy approach. warning: the algorithm is up to O(2^N), where N is the max depth.
--amdgpu-promote-alloca-to-vector-limit=<uint> - Maximum byte size to consider promote alloca to vector
--amdgpu-promote-alloca-to-vector-max-regs=<uint> - Maximum vector size (in 32b registers) to use when promoting alloca
--amdgpu-promote-alloca-to-vector-vgpr-ratio=<uint> - Ratio of VGPRs to budget for promoting alloca to vectors
--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
--arc-contract-use-objc-claim-rv - Enable generation of calls to objc_claimAutoreleasedReturnValue
--argext-abi-check - Verify that narrow int args are properly extended per the SystemZ ABI.
--arm-add-build-attributes -
--arm-implicit-it=<value> - Allow conditional instructions outside 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-section-match-infer - Enable matching and inference when generating basic block sections
--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
--bpf-stack-size=<int> - Specify the BPF stack size limit
--call-graph-section - Emit a call graph section
--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)
--conditional-counter-update - Do conditional counter updates in single byte counters mode)
--cost-kind=<value> - Target cost kind
=throughput - Reciprocal throughput
=latency - Instruction latency
=code-size - Code size
=size-latency - Code size and latency
=all - Print all cost kinds
--crel - Use CREL relocation format for ELF
--cs-profile-generate - Perform context sensitive PGO instrumentation
--cs-profile-path=<string> - Context sensitive profile file path
--ctx-prof-include-empty - Also write profiles with all-zero counters. Intended for testing/debugging.
--ctx-profile-force-is-specialized - Treat the given module as-if it were containing the post-thinlink module containing the root
--data-sections - Emit data into separate sections
--debug-entry-values - Enable debug info for the debug entry values.
--debugger-tune=<value> - Tune debug info for a particular debugger
=gdb - gdb
=lldb - lldb
=dbx - dbx
=sce - SCE targets (e.g. PS4)
--debugify-atoms -
--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
--devirtualize-speculatively - Enable speculative devirtualization optimization
--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-qfp-opt - Disable optimization of Qfloat operations.
--disable-qfp-opt-mul - Disable optimization of Qfloat operations for multiply.
--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
--elide-all-zero-branch-weights -
--emit-bb-hash - Emit the hash of basic block in the SHT_LLVM_BB_ADDR_MAP section.
--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
--emit-gnuas-syntax-on-zos - Emit GNU Assembly Syntax on z/OS.
--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-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-devirtualize-speculatively - Enable speculative devirtualization optimization
--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-memoryssa -
--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-poison-reuse-guard - Enable poison-reuse guard
--enable-split-backedge-in-load-pre -
--enable-split-loopiv-heuristic - Enable loop iv regalloc heuristic
--enable-tlsdesc - Enable the use of TLS Descriptors
--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
--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 but reserve the register in leaf functions
=non-leaf-no-reserve - 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 probability 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.
--gsframe - Whether to emit .sframe unwind sections.
--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 cutoff.
--hwasan-random-rate=<number> - Probability value in the range [0.0, 1.0] to keep instrumentation of a function. Note: instrumentation can be skipped randomly OR because of the hot percentile cutoff, if both are supplied.
--ignore-xcoff-visibility - Not emit the visibility attribute for asm in AIX OS or give all symbols 'unspecified' visibility in XCOFF object file
--implicit-mapsyms - Allow mapping symbol at section beginning to be implicit, lowering number of mapping symbols at the expense of some portability. Recommended for projects that can build all their object files using this option
--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
--intrinsic-cost-strategy=<value> - Costing strategy for intrinsic instructions
=instruction-cost - Use TargetTransformInfo::getInstructionCost
=intrinsic-cost - Use TargetTransformInfo::getIntrinsicInstrCost
=type-based-intrinsic-cost - Calculate the intrinsic cost based only on argument types
--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
--load=<pluginfilename> - Load the specified plugin
--loongarch-use-aa - Enable the use of AA during codegen.
--lower-allow-check-percentile-cutoff-hot=<int> - Hot percentile cutoff.
--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
=v75 - Build for HVX v75
=v79 - Build for HVX v79
=v81 - Build for HVX v81
--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
--ms-secure-hotpatch-functions-file=<filename> - A file containing list of mangled function names to mark for Windows Secure Hot-Patching
--ms-secure-hotpatch-functions-list=<list> - A list of mangled function names to mark for Windows Secure Hot-Patching
--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 aren't 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-approx-log2f32 - NVPTX Specific: whether to use lg2.approx for log2
--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
--partition-static-data-sections - Partition data sections using profile information.
--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
--print-pipeline-passes - Print a '-passes' compatible string describing the pipeline (best-effort only).
--profcheck-annotate-select - Also inject (if missing) and verify MD_prof for `select` instructions
--profcheck-default-function-entry-count=<long> -
--profcheck-default-select-false-weight=<uint> - When annotating `select` instructions, this value will be used for the second ('false') case.
--profcheck-default-select-true-weight=<uint> - When annotating `select` instructions, this value will be used for the first ('true') case.
--profcheck-weights-for-test - Generate weights with small values for tests.
--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
--propeller-infer-threshold=<number> - Threshold for infer stale profile
--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 1 to the value of 'sampled-instr-period' (0 is invalid). 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. A sample period of 0 is invalid. 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 65536 is optimized for generating efficient code that leverages unsigned short integer wrapping in overflow, but this is disabled under simple sampling (burst duration = 1).
--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.
--spirv-emit-op-names - Emit OpName for all instructions
--spirv-ext=<value> - Specify list of enabled SPIR-V extensions
--split-machine-functions - Split out cold basic blocks from machine functions based on profile information
--spv-allow-unknown-intrinsics[=<intrinsic_prefix_0,intrinsic_prefix_1>] - Emit unknown intrinsics as calls to external functions. A comma-separated input list of intrinsic prefixes must be provided, and only intrinsics carrying a listed prefix get emitted as described.
--spv-dump-deps - Dump MIR with SPIR-V dependencies info
--spv-emit-nonsemantic-debug-info - Emit SPIR-V NonSemantic.Shader.DebugInfo.100 instructions
--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.
--target-abi=<string> - The name of the ABI to be targeted from the backend.
--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
--translator-compatibility-mode - SPIR-V Translator compatibility mode
--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-sjlj - WebAssembly setjmp/longjmp handling
--wasm-use-legacy-eh - WebAssembly exception handling (legacy)
--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-enable-apx-for-relocation - Enable APX features (EGPR, NDD and NF) for instructions with relocations on x86-64 ELF
--x86-pad-max-prefix-size=<uint> - Maximum number of prefixes to use for padding
--x86-relax-relocations - Emit GOTPCRELX/REX_GOTPCRELX/CODE_4_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
IR2Vec Options:
--ir2vec-arg-weight=<number> - Weight for argument embeddings
--ir2vec-kind=<value> - IR2Vec embedding kind
=symbolic - Generate symbolic embeddings
=flow-aware - Generate flow-aware embeddings
--ir2vec-opc-weight=<number> - Weight for opcode embeddings
--ir2vec-type-weight=<number> - Weight for type embeddings
--ir2vec-vocab-path=<string> - Path to the vocabulary file for IR2Vec
MIR2Vec Options:
--mir2vec-common-operand-weight=<number> - Weight for common operand embeddings
--mir2vec-kind=<value> - MIR2Vec embedding kind
=symbolic - Generate symbolic embeddings for MIR
--mir2vec-opc-weight=<number> - Weight for machine opcode embeddings
--mir2vec-reg-operand-weight=<number> - Weight for register operand embeddings
--mir2vec-vocab-path=<string> - Path to the vocabulary file for MIR2Vec
Options (295)
| Option | Description | Source |
|---|---|---|
--color | - Use colors in output (default=autodetect) | help |
-O char | - Optimization level. | help |
--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 | help |
--aarch64-use-aa | - Enable the use of AA during codegen. | help |
--abort-on-max-devirt-iterations-reached | - Abort when the max iterations for devirtualization CGSCC repeat pass is reached | help |
--addrsig | - Emit an address-significance table | help |
--align-loops uint | - Default alignment for loops | help |
--allow-ginsert-as-artifact | - Allow G_INSERT to be considered an artifact. | help |
--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 | help |
--amdgpu-bypass-slow-div | - Skip 64-bit divide for dynamic 32-bit values | help |
--amdgpu-disable-loop-alignment | - Do not align and prefetch loops | help |
--amdgpu-dpp-combine | - Enable DPP combiner | help |
--amdgpu-dump-hsa-metadata | - Dump AMDGPU HSA Metadata | help |
--amdgpu-enable-merge-m0 | - Merge and hoist M0 initializations | help |
--amdgpu-indirect-call-specialization-threshold uint | - A threshold controls whether an indirect call will be specialized | help |
--amdgpu-kernarg-preload | - Enable preload kernel arguments to SGPRs | help |
--amdgpu-kernarg-preload-count uint | - How many kernel arguments to preload onto SGPRs | help |
--amdgpu-module-splitting-max-depth uint | - maximum search depth. | help |
--amdgpu-promote-alloca-to-vector-limit uint | - Maximum byte size to consider promote alloca to vector | help |
--amdgpu-promote-alloca-to-vector-max-regs uint | - Maximum vector size (in 32b registers) to use when promoting alloca | help |
--amdgpu-promote-alloca-to-vector-vgpr-ratio uint | - Ratio of VGPRs to budget for promoting alloca to vectors | help |
--amdgpu-sdwa-peephole | - Enable SDWA peepholer | help |
--amdgpu-use-aa-in-codegen | - Enable the use of AA during codegen. | help |
--amdgpu-verify-hsa-metadata | - Verify AMDGPU HSA Metadata | help |
--amdgpu-vgpr-index-mode | - Use GPR indexing mode instead of movrel for vector indexing | help |
--arc-contract-use-objc-claim-rv | - Enable generation of calls to objc_claimAutoreleasedReturnValue | help |
--argext-abi-check | - Verify that narrow int args are properly extended per the SystemZ ABI. | help |
--arm-add-build-attributes | - | help |
--arm-implicit-it value | - Allow conditional instructions outside 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 -… | help |
--asm-show-inst | - Emit internal instruction representation to assembly file | help |
--atomic-counter-update-promoted | - Do counter update using atomic fetch add for promoted counters only | help |
--atomic-first-counter | - Use atomic fetch add for first counter in a function (usually the entry counter) | help |
--basic-block-address-map | - Emit the basic block address map section | help |
--basic-block-section-match-infer | - Enable matching and inference when generating basic block sections | help |
--basic-block-sections all | - Emit basic blocks into separate sections | help |
--bounds-checking-single-trap | - Use one trap block per function | help |
--bpf-stack-size int | - Specify the BPF stack size limit | help |
--call-graph-section | - Emit a call graph section | help |
--cfg-hide-cold-paths number | - Hide blocks with relative frequency below the given value | help |
--cfg-hide-deoptimize-paths | - | help |
--cfg-hide-unreachable-paths | - | help |
--check-functions-filter regex | - Only emit checks for arguments of functions whose names match the given regular expression | help |
--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 | help |
--compile-threads uint | - Choose the number of compile threads (jit-kind=orc-lazy only) | help |
--conditional-counter-update | - Do conditional counter updates in single byte counters mode) | help |
--cost-kind value | - Target cost kind =throughput - Reciprocal throughput =latency - Instruction latency =code-size - Code size =size-latency - Code size and latency =all - Print all cost kinds | help |
--crel | - Use CREL relocation format for ELF | help |
--cs-profile-generate | - Perform context sensitive PGO instrumentation | help |
--cs-profile-path string | - Context sensitive profile file path | help |
--ctx-prof-include-empty | - Also write profiles with all-zero counters. | help |
--ctx-profile-force-is-specialized | - Treat the given module as-if it were containing the post-thinlink module containing the root | help |
--data-sections | - Emit data into separate sections | help |
--debug-entry-values | - Enable debug info for the debug entry values. | help |
--debugger-tune value | - Tune debug info for a particular debugger =gdb - gdb =lldb - lldb =dbx - dbx =sce - SCE targets (e.g. PS4) | help |
--debugify-atoms | - | help |
--debugify-func-limit ulong | - Set max number of processed functions per pass. | help |
--debugify-level value | - Kind of debug info to add =locations - Locations only =location+variables - Locations and Variables | help |
--debugify-quiet | - Suppress verbose debugify output | help |
--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 -… | help |
--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… | help |
--devirtualize-speculatively | - Enable speculative devirtualization optimization | help |
--disable-auto-upgrade-debug-info | - Disable autoupgrade of debug info | help |
--disable-i2p-p2i-opt | - Disables inttoptr/ptrtoint roundtrip optimization | help |
--disable-lazy-compilation | - Disable JIT lazy compilation | help |
--disable-promote-alloca-to-lds | - Disable promote alloca to LDS | help |
--disable-promote-alloca-to-vector | - Disable promote alloca to vector | help |
--disable-qfp-opt | - Disable optimization of Qfloat operations. | help |
--disable-qfp-opt-mul | - Disable optimization of Qfloat operations for multiply. | help |
--disable-tail-calls | - Never emit tail calls | help |
--dlopen string | - Dynamic libraries to load before linking | help |
--do-counter-promotion | - Do counter register promotion | help |
--dot-cfg-mssa file | - file name for generated dot file | help |
--dwarf-version int | - Dwarf version | help |
--dwarf64 | - Generate debugging info in the 64-bit DWARF format | help |
--elide-all-zero-branch-weights | - | help |
--emit-bb-hash | - Emit the hash of basic block in the SHT_LLVM_BB_ADDR_MAP section. | help |
--emit-call-site-info | - Emit call site debug information, if debug information is enabled. | help |
--emit-compact-unwind-non-canonical | - Whether to try to emit Compact Unwind for non canonical entries. | help |
--emit-dwarf-unwind value | - Whether to emit DWARF EH frame entries. | help |
--emit-gnuas-syntax-on-zos | - Emit GNU Assembly Syntax on z/OS. | help |
--emscripten-cxx-exceptions-allowed string | - The list of function names in which Emscripten-style exception handling is enabled (see emscripten EMSCRIPTEN_CATCHING_ALLOWED options) | help |
--emulated-tls | - Use emulated TLS model | help |
--enable-cache-manager | - Use cache manager to save/load modules | help |
--enable-cse-in-irtranslator | - Should enable CSE in irtranslator | help |
--enable-cse-in-legalizer | - Should enable CSE in Legalizer | help |
--enable-devirtualize-speculatively | - Enable speculative devirtualization optimization | help |
--enable-emscripten-cxx-exceptions | - WebAssembly Emscripten-style exception handling | help |
--enable-emscripten-sjlj | - WebAssembly Emscripten-style setjmp/longjmp handling | help |
--enable-gvn-hoist | - Enable the GVN hoisting pass (default = off) | help |
--enable-gvn-memdep | - | help |
--enable-gvn-memoryssa | - | help |
--enable-gvn-sink | - Enable the GVN sinking pass (default = off) | help |
--enable-jmc-instrument | - Instrument functions with a call to __CheckForDebuggerJustMyCode | help |
--enable-jump-table-to-switch | - Enable JumpTableToSwitch pass (default = off) | help |
--enable-load-in-loop-pre | - | help |
--enable-load-pre | - | help |
--enable-loop-simplifycfg-term-folding | - | help |
--enable-name-compression | - Enable name/filename string compression | help |
--enable-no-infs-fp-math | - Enable FP math optimizations that assume no +-Infs | help |
--enable-no-nans-fp-math | - Enable FP math optimizations that assume no NaNs | help |
--enable-no-signed-zeros-fp-math | - Enable FP math optimizations that assume the sign of 0 is insignificant | help |
--enable-no-trapping-fp-math | - Enable setting the FP exceptions build attribute not to use exceptions | help |
--enable-poison-reuse-guard | - Enable poison-reuse guard | help |
--enable-split-backedge-in-load-pre | - | help |
--enable-split-loopiv-heuristic | - Enable loop iv regalloc heuristic | help |
--enable-tlsdesc | - Enable the use of TLS Descriptors | help |
--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. | help |
--enable-vtable-value-profiling | - If true, the virtual table address will be instrumented to know the types of a C++ pointer. | help |
--entry-function function | - Specify the entry function (default = 'main') of the executable | help |
--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… | help |
--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… | help |
--experimental-debug-variable-locations | - Use experimental new value-tracking variable locations | help |
--extra-archive input | - Extra archive files to be loaded | help |
--extra-module input | - Extra modules to be loaded | help |
--extra-object input | - Extra object files to be loaded | help |
--fake-argv0 executable | - Override the 'argv[0]' value passed into the executing program | help |
--fatal-warnings | - Treat warnings as errors | help |
--fdpic | - Use the FDPIC ABI | help |
--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 | help |
--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) | help |
--force-dwarf-frame-section | - Always emit a debug frame section. | help |
--force-interpreter | - Force interpretation: disable JIT | help |
--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… | help |
--fp-contract value | - Enable aggressive formation of fused FP ops =fast - Fuse FP ops whenever profitable =on - Only fuse 'blessed' FP ops. | help |
--frame-pointer value | - Specify frame pointer elimination optimization =all - Disable frame pointer elimination =non-leaf - Disable frame pointer elimination for non-leaf frame but reserve the register in leaf functions… | help |
--fs-profile-debug-bw-threshold uint | - Only show debug message if the source branch weight is greater than this value. | help |
--fs-profile-debug-prob-diff-threshold uint | - Only show debug message if the branch probability is greater than this value (in percentage). | help |
--function-sections | - Emit functions into separate sections | help |
--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. | help |
--gpsize uint | - Global Pointer Addressing Size. | help |
--gsframe | - Whether to emit .sframe unwind sections. | help |
--hash-based-counter-split | - Rename counter variable of a comdat function based on cfg hash | help |
--hexagon-add-build-attributes | - | help |
--hexagon-rdf-limit uint | - | help |
--hot-cold-split | - Enable hot-cold splitting pass | help |
--hwasan-percentile-cutoff-hot int | - Hot percentile cutoff. | help |
--hwasan-random-rate number | - Probability value in the range [0.0, 1.0] to keep instrumentation of a function. | help |
--ignore-xcoff-visibility | - Not emit the visibility attribute for asm in AIX OS or give all symbols 'unspecified' visibility in XCOFF object file | help |
--implicit-mapsyms | - Allow mapping symbol at section beginning to be implicit, lowering number of mapping symbols at the expense of some portability. | help |
--import-all-index | - Import all external functions in index. | help |
--incremental-linker-compatible | - When used with filetype=obj, emit an object file which can be used with an incremental linker | help |
--instcombine-code-sinking | - Enable code sinking | help |
--instcombine-guard-widening-window uint | - How wide an instruction window to bypass looking for another guard | help |
--instcombine-max-num-phis uint | - Maximum number phis to handle in intptr/ptrint folding | help |
--instcombine-max-sink-users uint | - Maximum number of undroppable users for instruction sinking | help |
--instcombine-maxarray-size uint | - Maximum array size considered when doing a combine | help |
--instcombine-negator-enabled | - Should we attempt to sink negations? | help |
--instcombine-negator-max-depth uint | - What is the maximal lookup depth when trying to check for viability of negation sinking. | help |
--instrprof-atomic-counter-update-all | - Make all profile counter updates atomic (for testing only) | help |
--internalize-public-api-file filename | - A file containing list of symbol names to preserve | help |
--internalize-public-api-list list | - A list of symbol names to preserve | help |
--intrinsic-cost-strategy value | - Costing strategy for intrinsic instructions =instruction-cost - Use TargetTransformInfo::getInstructionCost =intrinsic-cost - Use TargetTransformInfo::getIntrinsicInstrCost… | help |
--iterative-counter-promotion | - Allow counter promotion across the whole loop nest. | help |
--jd string | - Specifies the JITDylib to be used for any subsequent -extra-module arguments. | help |
--jit-kind value | - Choose underlying JIT kind. | help |
--jit-linker value | - Choose the dynamic linker/loader. | help |
--large-data-threshold ulong | - Choose large data threshold for x86_64 medium code model | help |
--load pluginfilename | - Load the specified plugin | help |
--loongarch-use-aa | - Enable the use of AA during codegen. | help |
--lower-allow-check-percentile-cutoff-hot int | - Hot percentile cutoff. | help |
--lower-allow-check-random-rate number | - Probability value in the range [0.0, 1.0] of unconditional pseudo-random checks. | help |
--lto-aix-system-assembler path | - Path to a system assembler, picked up on AIX only | help |
--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 | help |
--lto-pass-remarks-filter regex | - Only record optimization remarks from passes whose names match the given regular expression | help |
--lto-pass-remarks-format format | - The format used for serializing remarks (default: YAML) | help |
--lto-pass-remarks-output filename | - Output filename for pass remarks | help |
--march string | - Architecture to generate code for (see --version) | help |
--matrix-default-layout value | - Sets the default matrix layout =column-major - Use column-major layout =row-major - Use row-major layout | help |
--matrix-print-after-transpose-opt | - | help |
--mattr, -a3 a1 | - Target specific attributes (-mattr=help for details) | help |
--max-counter-promotions int | - Max number of allowed counter promotions | help |
--max-counter-promotions-per-loop uint | - Max number counter promotions per loop to avoid increasing register pressure too much | help |
--mc-relax-all | - When used with filetype=obj, relax all fixups in the emitted object file | help |
--mcabac | - tbd | help |
--mcjit-remote-process filename | - Specify the filename of the process to launch for remote MCJIT execution. | help |
--mcpu cpu-name | - Target a specific cpu type (-mcpu=help for details) | help |
--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 | help |
--merror-missing-parenthesis | - Error for missing parenthesis around predicate registers | help |
--merror-noncontigious-register | - Error for register names that aren't contigious | help |
--mhvx | - Enable Hexagon Vector eXtensions | help |
--mips-compact-branches value | - MIPS Specific: Compact branch policy. | help |
--mips16-constant-islands | - Enable mips16 constant islands. | help |
--mips16-hard-float | - Enable mips16 hard float. | help |
--mir-strip-debugify-only | - Should mir-strip-debug only strip debug info from debugified modules by default | help |
--misexpect-tolerance uint | - Prevents emitting diagnostics when profile counts are within N% of the threshold.. | help |
--mno-compound | - Disable looking for compound instructions for Hexagon | help |
--mno-fixup | - Disable fixing up resolved relocations for Hexagon | help |
--mno-ldc1-sdc1 | - Expand double precision loads and stores to their single precision counterparts | help |
--mno-pairing | - Disable looking for duplex instructions for Hexagon | help |
--ms-secure-hotpatch-functions-file filename | - A file containing list of mangled function names to mark for Windows Secure Hot-Patching | help |
--ms-secure-hotpatch-functions-list list | - A list of mangled function names to mark for Windows Secure Hot-Patching | help |
--mtriple string | - Override target triple for module | help |
--mwarn-missing-parenthesis | - Warn for missing parenthesis around predicate registers | help |
--mwarn-noncontigious-register | - Warn for register names that aren't contigious | help |
--mwarn-sign-mismatch | - Warn for mismatching a signed and unsigned value | help |
--mxcoff-roptr | - When set to true, const objects with relocatable address values are put into the RO data section. | help |
--no-deprecated-warn | - Suppress all deprecated warnings | help |
--no-discriminators | - Disable generation of discriminator information. | help |
--no-integrated-as | - Disable integrated assembler | help |
--no-process-syms | - Do not resolve lli process symbols in JIT'd code | help |
--no-type-check | - Suppress type errors (Wasm) | help |
--no-warn | - Suppress all warnings | help |
--nozero-initialized-in-bss | - Don't place zero-initialized symbols into bss section | help |
--nvptx-approx-log2f32 | - NVPTX Specific: whether to use lg2.approx for log2 | help |
--nvptx-sched4reg | - NVPTX Specific: schedule for register pressue | help |
--object-cache-dir string | - Directory to store cached object files (must be user writable) | help |
--object-size-offset-visitor-max-visit-instructions uint | - Maximum number of instructions for ObjectSizeOffsetVisitor to look at | help |
--orc-runtime string | - Use ORC runtime from given path | help |
--partition-static-data-sections | - Partition data sections using profile information. | help |
--per-module-lazy | - Performs lazy compilation on whole module boundaries rather than individual functions | help |
--pgo-block-coverage | - Use this option to enable basic block coverage instrumentation | help |
--pgo-temporal-instrumentation | - Use this option to enable temporal instrumentation | help |
--pgo-view-block-coverage-graph | - Create a dot file of CFGs with block coverage inference information | help |
--print-pipeline-passes | - Print a '-passes' compatible string describing the pipeline (best-effort only). | help |
--profcheck-annotate-select | - Also inject (if missing) and verify MD_prof for `select` instructions | help |
--profcheck-default-function-entry-count long | - | help |
--profcheck-default-select-false-weight uint | - When annotating `select` instructions, this value will be used for the second ('false') case. | help |
--profcheck-default-select-true-weight uint | - When annotating `select` instructions, this value will be used for the first ('true') case. | help |
--profcheck-weights-for-test | - Generate weights with small values for tests. | help |
--profile-correlate value | - Use debug info or binary file to correlate profiles. | help |
--promote-alloca-vector-loop-user-weight uint | - The bonus weight of users of allocas within loop when sorting profitable allocas | help |
--propeller-infer-threshold number | - Threshold for infer stale profile | help |
--r600-ir-structurize | - Use StructurizeCFG IR pass | help |
--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… | help |
--remote-mcjit | - Execute MCJIT'ed code in a separate process. | help |
--riscv-add-build-attributes | - | help |
--riscv-use-aa | - Enable the use of AA during codegen. | help |
--runtime-counter-relocation | - Enable relocating counters at runtime. | help |
--safepoint-ir-verifier-print-only | - | help |
--sample-profile-check-record-coverage N | - Emit a warning if less than N% of records in the input profile are matched to the IR. | help |
--sample-profile-check-sample-coverage N | - Emit a warning if less than N% of samples in the input profile are matched to the IR. | help |
--sample-profile-max-propagate-iterations uint | - Maximum number of iterations to go through when propagating sample block/edge weights through the CFG. | help |
--sampled-instr-burst-duration uint | - Set the profile instrumentation burst duration, which can range from 1 to the value of 'sampled-instr-period' (0 is invalid). | help |
--sampled-instr-period uint | - Set the profile instrumentation sample period. | help |
--sampled-instrumentation | - Do PGO instrumentation sampling | help |
--save-temp-labels | - Don't discard temporary labels | help |
--separate-named-sections | - Use separate unique sections for named sections | help |
--skip-ret-exit-block | - Suppress counter promotion if exit blocks contain ret. | help |
--soft-float | - Generate software floating point library calls | help |
--speculative-counter-promotion-max-exiting uint | - The max number of exiting blocks of a loop to allow speculative counter promotion | help |
--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. | help |
--spirv-emit-op-names | - Emit OpName for all instructions | help |
--spirv-ext value | - Specify list of enabled SPIR-V extensions | help |
--split-machine-functions | - Split out cold basic blocks from machine functions based on profile information | help |
--spv-dump-deps | - Dump MIR with SPIR-V dependencies info | help |
--spv-emit-nonsemantic-debug-info | - Emit SPIR-V NonSemantic.Shader.DebugInfo.100 instructions | help |
--stack-size-section | - Emit a section containing stack size metadata | help |
--stack-symbol-ordering | - Order local stack symbols. | help |
--stackrealign | - Force align the stack to the minimum alignment | help |
--strict-dwarf | - use strict dwarf | help |
--summary-file string | - The summary file to use for function importing. | help |
--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… | help |
--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 | help |
--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… | help |
--tailcallopt | - Turn fastcc calls into tail calls by (potentially) changing ABI. | help |
--target-abi string | - The name of the ABI to be targeted from the backend. | help |
--thinlto-assume-merged | - Assume the input has already undergone ThinLTO function importing and the other pre-optimization pipeline changes. | help |
--thread-entry string | - calls the given entry-point on a new thread (jit-kind=orc-lazy only) | help |
--thread-model value | - Choose threading model =posix - POSIX thread model =single - Single thread model | help |
--threads int | - | help |
--tls-size uint | - Bit size of immediate TLS offsets | help |
--translator-compatibility-mode | - SPIR-V Translator compatibility mode | help |
--unique-basic-block-section-names | - Give unique names to every basic block section | help |
--unique-section-names | - Give unique names to every section | help |
--use-ctors | - Use .ctors instead of .init_array. | help |
--use-undef | - Use undef when generating programs. | help |
--vec-extabi | - Enable the AIX Extended Altivec ABI. | help |
--verify-region-info | - Verify region info (time consuming) | help |
--vp-counters-per-site number | - The average number of profile counters allocated per value profiling site. | help |
--vp-static-alloc | - Do static counter allocation for value profiler | help |
--wasm-enable-eh | - WebAssembly exception handling | help |
--wasm-enable-sjlj | - WebAssembly setjmp/longjmp handling | help |
--wasm-use-legacy-eh | - WebAssembly exception handling (legacy) | help |
--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… | help |
--x86-align-branch-boundary uint | - Control how the assembler should align branches with NOP. | help |
--x86-branches-within-32B-boundaries | - Align selected instructions to mitigate negative performance impact of Intel's micro code update for errata skx102. | help |
--x86-enable-apx-for-relocation | - Enable APX features (EGPR, NDD and NF) for instructions with relocations on x86-64 ELF | help |
--x86-pad-max-prefix-size uint | - Maximum number of prefixes to use for padding | help |
--x86-relax-relocations | - Emit GOTPCRELX/REX_GOTPCRELX/CODE_4_GOTPCRELX instead of GOTPCREL on x86-64 ELF | help |
--x86-sse2avx | - Specify that the assembler should encode SSE instructions with VEX prefix | help |
--xcoff-traceback-table | - Emit the XCOFF traceback table | help |
--xray-function-index | - Emit xray_fn_idx section | help |
--help | - Display available options (--help-hidden for more) | help |
--help-list | - Display list of available options (--help-list-hidden for more) | help |
--version | - Display the version of this program | help |
--ir2vec-arg-weight number | - Weight for argument embeddings | help |
--ir2vec-kind value | - IR2Vec embedding kind =symbolic - Generate symbolic embeddings =flow-aware - Generate flow-aware embeddings | help |
--ir2vec-opc-weight number | - Weight for opcode embeddings | help |
--ir2vec-type-weight number | - Weight for type embeddings | help |
--ir2vec-vocab-path string | - Path to the vocabulary file for IR2Vec | help |
--mir2vec-common-operand-weight number | - Weight for common operand embeddings | help |
--mir2vec-kind value | - MIR2Vec embedding kind =symbolic - Generate symbolic embeddings for MIR | help |
--mir2vec-opc-weight number | - Weight for machine opcode embeddings | help |
--mir2vec-reg-operand-weight number | - Weight for register operand embeddings | help |
--mir2vec-vocab-path string | - Path to the vocabulary file for MIR2Vec | help |