OVERVIEW: LLVM automatic testcase reducer. See
http://llvm.org/cmds/bugpoint.html for more information.
USAGE: bugpoint [options] --args <program arguments>... --tool-args <tool arguments>... --safe-tool-args <safe-tool arguments>... --gcc-tool-args <gcc-tool arguments>... --opt-args <opt arguments>... <input llvm ll/bc files>
OPTIONS:
Color Options:
--color - Use colors in output (default=autodetect)
General options:
--Xlinker=<string> - Additional arguments to pass to the linker
--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
--abs-tolerance=<number> - Absolute error tolerated
--additional-so=<string> - Additional shared objects to load into executing programs
--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
--append-exit-code - Append the exit code to the output so it gets diff'd too
--args <string>... - <program arguments>...
--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)
--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
--compile-command=<string> - Command to compile the bitcode (use with -compile-custom) (default: llc)
--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
--debug-info-correlate - Use debug info to correlate profiles. (Deprecated, use -profile-correlate=debug-info)
--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
--disable-attribute-remove - Do not remove function attributes
--disable-auto-upgrade-debug-info - Disable autoupgrade of debug info
--disable-block-extraction - Don't extract blocks when searching for miscompilations
--disable-dce - Do not use the -dce pass to reduce testcases
--disable-global-remove - Do not remove global variables
--disable-i2p-p2i-opt - Disables inttoptr/ptrtoint roundtrip optimization
--disable-loop-extraction - Don't extract loops when searching for miscompilations
--disable-namedmd-remove - Do not remove global named metadata
--disable-pass-list-reduction - Skip pass list reduction steps
--disable-promote-alloca-to-lds - Disable promote alloca to LDS
--disable-promote-alloca-to-vector - Disable promote alloca to vector
--disable-simplifycfg - Do not use the -simplifycfg pass to reduce testcases
--disable-strip-debug-types - Do not strip debug type info metadata
--disable-strip-debuginfo - Do not strip debug info metadata
--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-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)
--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-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-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-valgrind - Run optimizations through valgrind
--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.
--exec-command=<string> - Command to execute the bitcode (use with -run-custom) (default: simulate)
--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.
--fatal-warnings - Treat warnings as errors
--fdpic - Use the FDPIC ABI
--find-bugs - Run many different optimization sequences on program to find bugs
--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.
--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).
--gcc=<string> - The gcc binary to use.
--gcc-tool-args <string>... - <gcc-tool arguments>...
--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.
--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
--input=<string> - Filename to pipe in as stdin (default: /dev/null)
--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.
--keep-main - Force function reduction to keep main
--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.
Passes available:
--aa - Function Alias Analysis Results
--always-inline - Inliner for always_inline functions
--assumption-cache-tracker - Assumption Cache Tracker
--barrier - A No-Op Barrier Pass
--basic-aa - Basic Alias Analysis (stateless AA impl)
--basiccg - CallGraph Construction
--block-freq - Block Frequency Analysis
--branch-prob - Branch Probability Analysis
--break-crit-edges - Break critical edges in CFG
--canon-freeze - Canonicalize Freeze Instructions in Loops
--check-debugify - Check debug info from -debugify
--check-debugify-function - Check debug info from -debugify-function
--consthoist - Constant Hoisting
--cycles - Cycle Info Analysis
--da - Dependence Analysis
--dce - Dead Code Elimination
--deadargelim - Dead Argument Elimination
--deadarghaX0r - Dead Argument Hacking (BUGPOINT USE ONLY; DO NOT USE)
--debugify - Attach debug info to everything
--debugify-function - Attach debug info to a function
--domfrontier - Dominance Frontier Construction
--domtree - Dominator Tree Construction
--dot-callgraph - Print call graph to 'dot' file
--dot-dom - Print dominance tree of function to 'dot' file
--dot-dom-only - Print dominance tree of function to 'dot' file (with no function bodies)
--dot-postdom - Print postdominance tree of function to 'dot' file
--dot-postdom-only - Print postdominance tree of function to 'dot' file (with no function bodies)
--dot-regions - Print regions of function to 'dot' file
--dot-regions-only - Print regions of function to 'dot' file (with no function bodies)
--early-cse - Early CSE
--early-cse-memssa - Early CSE w/ MemorySSA
--external-aa - External Alias Analysis
--fix-irreducible - Convert irreducible control-flow into natural loops
--flattencfg - Flatten the CFG
--globals-aa - Globals Alias Analysis
--gvn - Global Value Numbering
--infer-address-spaces - Infer address spaces
--instcombine - Combine redundant instructions
--instsimplify - Remove redundant instructions
--ir-similarity-identifier - ir-similarity-identifier
--iv-users - Induction Variable Users
--lazy-block-freq - Lazy Block Frequency Analysis
--lazy-branch-prob - Lazy Branch Probability Analysis
--lazy-value-info - Lazy Value Information Analysis
--lcssa - Loop-Closed SSA Form Pass
--lcssa-verification - LCSSA Verifier
--licm - Loop Invariant Code Motion
--load-store-vectorizer - Vectorize load and store instructions
--loop-data-prefetch - Loop Data Prefetch
--loop-extract - Extract loops into new functions
--loop-extract-single - Extract at most one loop into a new function
--loop-reduce - Loop Strength Reduction
--loop-simplify - Canonicalize natural loops
--loop-unroll - Unroll loops
--loops - Natural Loop Information
--lower-constant-intrinsics - Lower constant intrinsics
--lower-global-dtors - Lower @llvm.global_dtors via `__cxa_atexit`
--loweratomic - Lower atomic intrinsics to non-atomic form
--lowerinvoke - Lower invoke and unwind, for unwindless code generators
--lowerswitch - Lower SwitchInst's to branches
--mem2reg - Promote Memory to Register
--memdep - Memory Dependence Analysis
--memoryssa - Memory SSA
--mergeicmps - Merge contiguous icmps into a memcmp
--module-summary-analysis - Module Summary Analysis
--module-summary-info - Module summary info
--nary-reassociate - Nary reassociation
--opt-remark-emitter - Optimization Remark Emitter
--partially-inline-libcalls - Partially inline calls to library functions
--phi-values - Phi Values Analysis
--place-backedge-safepoints-impl - Place Backedge Safepoints
--post-inline-ee-instrument - Instrument function entry/exit with calls to e.g. mcount() (post inlining)
--postdomtree - Post-Dominator Tree Construction
--print-function - Print function to stderr
--print-module - Print module to stderr
--profile-summary-info - Profile summary info
--reassociate - Reassociate expressions
--regions - Detect single entry single exit regions
--scalar-evolution - Scalar Evolution Analysis
--scalarize-masked-mem-intrin - Scalarize unsupported masked memory intrinsics
--scev-aa - ScalarEvolution-based Alias Analysis
--scoped-noalias-aa - Scoped NoAlias Alias Analysis
--separate-const-offset-from-gep - Split GEPs to a variadic base and a constant offset for better CSE
--simplifycfg - Simplify the CFG
--sink - Code sinking
--slsr - Straight line strength reduction
--speculative-execution - Speculatively execute instructions
--sroa - Scalar Replacement Of Aggregates
--stack-safety - Stack Safety Analysis
--stack-safety-local - Stack Safety Local Analysis
--structurizecfg - Structurize the CFG
--tailcallelim - Tail Call Elimination
--targetlibinfo - Target Library Information
--tbaa - Type-Based Alias Analysis
--tlshoist - TLS Variable Hoist
--tti - Target Transform Information
--uniformity - Uniformity Analysis
--unify-loop-exits - Fixup each natural loop to have a single exit block
--verify - Module Verifier
--verify-safepoint-ir - Safepoint IR Verifier
--view-callgraph - View call graph
--view-dom - View dominance tree of function
--view-dom-only - View dominance tree of function (with no function bodies)
--view-postdom - View postdominance tree of function
--view-postdom-only - View postdominance tree of function (with no function bodies)
--view-regions - View regions of function
--view-regions-only - View regions of function (with no function bodies)
--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
--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 -
--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
--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..
--mlimit=<MBytes> - Maximum amount of memory to use. 0 disables check. Defaults to 400MB (800MB under valgrind, 0 with sanitizers).
--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
--no-deprecated-warn - Suppress all deprecated warnings
--no-discriminators - Disable generation of discriminator information.
--no-type-check - Suppress type errors (Wasm)
--no-warn - Suppress all warnings
--nvptx-sched4reg - NVPTX Specific: schedule for register pressue
--object-size-offset-visitor-max-visit-instructions=<uint> - Maximum number of instructions for ObjectSizeOffsetVisitor to look at
--opt-args <string>... - <opt arguments>...
--opt-command=<string> - Path to opt. (default: search path for 'opt'.)
--output=<string> - Specify a reference program output (for miscompilation detection)
--output-prefix=<string> - Prefix to use for outputs (default: 'bugpoint')
--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
--rel-tolerance=<number> - Relative error tolerated
--remote-client=<string> - Remote execution client (rsh/ssh)
--remote-extra-options=<string> - Remote execution (rsh/ssh) extra options
--remote-host=<string> - Remote execution (rsh/ssh) host
--remote-port=<string> - Remote execution (rsh/ssh) port
--remote-user=<string> - Remote execution (rsh/ssh) user id
--replace-funcs-with-null - When stubbing functions, replace all uses will null
--riscv-add-build-attributes -
--riscv-use-aa - Enable the use of AA during codegen.
Specify the "test" i.e. suspect back-end:
--auto - Use best guess
--run-int - Execute with the interpreter
--run-jit - Execute with JIT
--run-llc - Compile with LLC
--run-llc-ia - Compile with LLC with integrated assembler
--compile-custom - Use -compile-command to define a command to compile the bitcode. Useful to avoid linking.
--run-custom - Use -exec-command to define a command to execute the bitcode. Useful for cross-compilation.
--runtime-counter-relocation - Enable relocating counters at runtime.
Specify "safe" i.e. known-good backend:
--safe-auto - Use best guess
--safe-run-llc - Compile with LLC
--safe-run-custom - Use -exec-command to define a command to execute the bitcode. Useful for cross-compilation.
--safe-path=<string> - Specify the path to the "safe" backend program
--safe-tool-args <string>... - <safe-tool arguments>...
--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
--save-temps - Save temporary files
--silence-passes - Suppress output of running passes (both stdout and stderr)
--skip-ret-exit-block - Suppress counter promotion if exit blocks contain ret.
--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.
--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
--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
--thinlto-assume-merged - Assume the input has already undergone ThinLTO function importing and the other pre-optimization pipeline changes.
--threads=<int> -
--timeout=<seconds> - Number of seconds program is allowed to run before it is killed (default is 300s), 0 disables timeout
--tool-args <string>... - <tool arguments>...
--type-based-intrinsic-cost - Calculate intrinsics cost based only on argument types
--use-undef - Use undef when generating programs.
--verbose-errors - Print the output of crashing program
--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
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
Options (335)
| Option | Description | Source |
|---|---|---|
--color | - Use colors in output (default=autodetect) | help |
--Xlinker string | - Additional arguments to pass to the linker | 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 |
--abs-tolerance number | - Absolute error tolerated | help |
--additional-so string | - Additional shared objects to load into executing programs | 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-enable-power-sched | - Enable scheduling to minimize mAI power bursts | help |
--amdgpu-kernarg-preload-count uint | - How many kernel arguments to preload onto SGPRs | help |
--amdgpu-promote-alloca-to-vector-limit uint | - Maximum byte size to consider promote alloca to vector | 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 |
--append-exit-code | - Append the exit code to the output so it gets diff'd too | help |
--args string>... | - <program arguments>... | help |
--arm-add-build-attributes | - | help |
--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 -… | 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 |
--bounds-checking-single-trap | - Use one trap block per function | help |
--bounds-checking-unique-traps | - Always use one trap per check | help |
--bpf-stack-size int | - Specify the BPF stack size limit | 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 |
--compile-command string | - Command to compile the bitcode (use with -compile-custom) (default: llc) | help |
--cost-kind value | - Target cost kind =throughput - Reciprocal throughput =latency - Instruction latency =code-size - Code size =size-latency - Code size and latency | 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 |
--debug-info-correlate | - Use debug info to correlate profiles. | 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 |
--disable-attribute-remove | - Do not remove function attributes | help |
--disable-auto-upgrade-debug-info | - Disable autoupgrade of debug info | help |
--disable-block-extraction | - Don't extract blocks when searching for miscompilations | help |
--disable-dce | - Do not use the -dce pass to reduce testcases | help |
--disable-global-remove | - Do not remove global variables | help |
--disable-i2p-p2i-opt | - Disables inttoptr/ptrtoint roundtrip optimization | help |
--disable-loop-extraction | - Don't extract loops when searching for miscompilations | help |
--disable-namedmd-remove | - Do not remove global named metadata | help |
--disable-pass-list-reduction | - Skip pass list reduction steps | help |
--disable-promote-alloca-to-lds | - Disable promote alloca to LDS | help |
--disable-promote-alloca-to-vector | - Disable promote alloca to vector | help |
--disable-simplifycfg | - Do not use the -simplifycfg pass to reduce testcases | help |
--disable-strip-debug-types | - Do not strip debug type info metadata | help |
--disable-strip-debuginfo | - Do not strip debug info metadata | 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 |
--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 |
--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 |
--enable-cse-in-irtranslator | - Should enable CSE in irtranslator | help |
--enable-cse-in-legalizer | - Should enable CSE in Legalizer | 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-sink | - Enable the GVN sinking pass (default = off) | 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-pgo-force-function-attrs | - Enable pass to set function attributes based on PGO profiles | help |
--enable-split-backedge-in-load-pre | - | help |
--enable-split-loopiv-heuristic | - Enable loop iv regalloc heuristic | help |
--enable-valgrind | - Run optimizations through valgrind | 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 |
--exec-command string | - Command to execute the bitcode (use with -run-custom) (default: simulate) | 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 |
--experimental-debuginfo-iterators | - Enable communicating debuginfo positions through iterators, eliminating intrinsics. | help |
--fatal-warnings | - Treat warnings as errors | help |
--fdpic | - Use the FDPIC ABI | help |
--find-bugs | - Run many different optimization sequences on program to find bugs | 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 |
--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 probility is greater than this value (in percentage). | help |
--gcc string | - The gcc binary to use. | help |
--gcc-tool-args string>... | - <gcc-tool arguments>... | 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 |
--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 cuttoff. | help |
--hwasan-random-rate number | - Probability value in the range [0.0, 1.0] to keep instrumentation of a function. | 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 |
--input string | - Filename to pipe in as stdin (default: /dev/null) | 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 |
--iterative-counter-promotion | - Allow counter promotion across the whole loop nest. | help |
--keep-main | - Force function reduction to keep main | help |
--lint-abort-on-error | - In the Lint pass, abort on errors. | help |
--load pluginfilename | - Load the specified plugin | help |
--lower-allow-check-percentile-cutoff-hot int | - Hot percentile cuttoff. | help |
--lower-allow-check-random-rate number | - Probability value in the range [0.0, 1.0] of unconditional pseudo-random checks. | help |
--aa | - Function Alias Analysis Results | help |
--always-inline | - Inliner for always_inline functions | help |
--assumption-cache-tracker | - Assumption Cache Tracker | help |
--barrier | - A No-Op Barrier Pass | help |
--basic-aa | - Basic Alias Analysis (stateless AA impl) | help |
--basiccg | - CallGraph Construction | help |
--block-freq | - Block Frequency Analysis | help |
--branch-prob | - Branch Probability Analysis | help |
--break-crit-edges | - Break critical edges in CFG | help |
--canon-freeze | - Canonicalize Freeze Instructions in Loops | help |
--check-debugify | - Check debug info from -debugify | help |
--check-debugify-function | - Check debug info from -debugify-function | help |
--consthoist | - Constant Hoisting | help |
--cycles | - Cycle Info Analysis | help |
--da | - Dependence Analysis | help |
--dce | - Dead Code Elimination | help |
--deadargelim | - Dead Argument Elimination | help |
--deadarghaX0r | - Dead Argument Hacking (BUGPOINT USE ONLY; | help |
--debugify | - Attach debug info to everything | help |
--debugify-function | - Attach debug info to a function | help |
--domfrontier | - Dominance Frontier Construction | help |
--domtree | - Dominator Tree Construction | help |
--dot-callgraph | - Print call graph to 'dot' file | help |
--dot-dom | - Print dominance tree of function to 'dot' file | help |
--dot-dom-only | - Print dominance tree of function to 'dot' file (with no function bodies) | help |
--dot-postdom | - Print postdominance tree of function to 'dot' file | help |
--dot-postdom-only | - Print postdominance tree of function to 'dot' file (with no function bodies) | help |
--dot-regions | - Print regions of function to 'dot' file | help |
--dot-regions-only | - Print regions of function to 'dot' file (with no function bodies) | help |
--early-cse | - Early CSE | help |
--early-cse-memssa | - Early CSE w/ MemorySSA | help |
--external-aa | - External Alias Analysis | help |
--fix-irreducible | - Convert irreducible control-flow into natural loops | help |
--flattencfg | - Flatten the CFG | help |
--globals-aa | - Globals Alias Analysis | help |
--gvn | - Global Value Numbering | help |
--infer-address-spaces | - Infer address spaces | help |
--instcombine | - Combine redundant instructions | help |
--instsimplify | - Remove redundant instructions | help |
--ir-similarity-identifier | - ir-similarity-identifier | help |
--iv-users | - Induction Variable Users | help |
--lazy-block-freq | - Lazy Block Frequency Analysis | help |
--lazy-branch-prob | - Lazy Branch Probability Analysis | help |
--lazy-value-info | - Lazy Value Information Analysis | help |
--lcssa | - Loop-Closed SSA Form Pass | help |
--lcssa-verification | - LCSSA Verifier | help |
--licm | - Loop Invariant Code Motion | help |
--load-store-vectorizer | - Vectorize load and store instructions | help |
--loop-data-prefetch | - Loop Data Prefetch | help |
--loop-extract | - Extract loops into new functions | help |
--loop-extract-single | - Extract at most one loop into a new function | help |
--loop-reduce | - Loop Strength Reduction | help |
--loop-simplify | - Canonicalize natural loops | help |
--loop-unroll | - Unroll loops | help |
--loops | - Natural Loop Information | help |
--lower-constant-intrinsics | - Lower constant intrinsics | help |
--lower-global-dtors | - Lower @llvm.global_dtors via `__cxa_atexit` | help |
--loweratomic | - Lower atomic intrinsics to non-atomic form | help |
--lowerinvoke | - Lower invoke and unwind, for unwindless code generators | help |
--lowerswitch | - Lower SwitchInst's to branches | help |
--mem2reg | - Promote Memory to Register | help |
--memdep | - Memory Dependence Analysis | help |
--memoryssa | - Memory SSA | help |
--mergeicmps | - Merge contiguous icmps into a memcmp | help |
--module-summary-analysis | - Module Summary Analysis | help |
--module-summary-info | - Module summary info | help |
--nary-reassociate | - Nary reassociation | help |
--opt-remark-emitter | - Optimization Remark Emitter | help |
--partially-inline-libcalls | - Partially inline calls to library functions | help |
--phi-values | - Phi Values Analysis | help |
--place-backedge-safepoints-impl | - Place Backedge Safepoints | help |
--post-inline-ee-instrument | - Instrument function entry/exit with calls to e.g. mcount() (post inlining) | help |
--postdomtree | - Post-Dominator Tree Construction | help |
--print-function | - Print function to stderr | help |
--print-module | - Print module to stderr | help |
--profile-summary-info | - Profile summary info | help |
--reassociate | - Reassociate expressions | help |
--regions | - Detect single entry single exit regions | help |
--scalar-evolution | - Scalar Evolution Analysis | help |
--scalarize-masked-mem-intrin | - Scalarize unsupported masked memory intrinsics | help |
--scev-aa | - ScalarEvolution-based Alias Analysis | help |
--scoped-noalias-aa | - Scoped NoAlias Alias Analysis | help |
--separate-const-offset-from-gep | - Split GEPs to a variadic base and a constant offset for better CSE | help |
--simplifycfg | - Simplify the CFG | help |
--sink | - Code sinking | help |
--slsr | - Straight line strength reduction | help |
--speculative-execution | - Speculatively execute instructions | help |
--sroa | - Scalar Replacement Of Aggregates | help |
--stack-safety | - Stack Safety Analysis | help |
--stack-safety-local | - Stack Safety Local Analysis | help |
--structurizecfg | - Structurize the CFG | help |
--tailcallelim | - Tail Call Elimination | help |
--targetlibinfo | - Target Library Information | help |
--tbaa | - Type-Based Alias Analysis | help |
--tlshoist | - TLS Variable Hoist | help |
--tti | - Target Transform Information | help |
--uniformity | - Uniformity Analysis | help |
--unify-loop-exits | - Fixup each natural loop to have a single exit block | help |
--verify | - Module Verifier | help |
--verify-safepoint-ir | - Safepoint IR Verifier | help |
--view-callgraph | - View call graph | help |
--view-dom | - View dominance tree of function | help |
--view-dom-only | - View dominance tree of function (with no function bodies) | help |
--view-postdom | - View postdominance tree of function | help |
--view-postdom-only | - View postdominance tree of function (with no function bodies) | help |
--view-regions | - View regions of function | help |
--view-regions-only | - View regions of function (with no function bodies) | 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 |
--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 |
--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 |
--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 |
--mlimit MBytes | - Maximum amount of memory to use. | 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 |
--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 arent contigious | help |
--mwarn-sign-mismatch | - Warn for mismatching a signed and unsigned value | help |
--no-deprecated-warn | - Suppress all deprecated warnings | help |
--no-discriminators | - Disable generation of discriminator information. | help |
--no-type-check | - Suppress type errors (Wasm) | help |
--no-warn | - Suppress all warnings | help |
--nvptx-sched4reg | - NVPTX Specific: schedule for register pressue | help |
--opt-args string>... | - <opt arguments>... | help |
--opt-command string | - Path to opt. | help |
--output string | - Specify a reference program output (for miscompilation detection) | help |
--output-prefix string | - Prefix to use for outputs (default: 'bugpoint') | 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 |
--poison-checking-function-local | - Check that returns are non-poison (for testing) | help |
--print-pipeline-passes | - Print a '-passes' compatible string describing the pipeline (best-effort only). | 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 |
--r600-ir-structurize | - Use StructurizeCFG IR pass | help |
--rel-tolerance number | - Relative error tolerated | help |
--remote-client string | - Remote execution client (rsh/ssh) | help |
--remote-extra-options string | - Remote execution (rsh/ssh) extra options | help |
--remote-host string | - Remote execution (rsh/ssh) host | help |
--remote-port string | - Remote execution (rsh/ssh) port | help |
--remote-user string | - Remote execution (rsh/ssh) user id | help |
--replace-funcs-with-null | - When stubbing functions, replace all uses will null | help |
--riscv-add-build-attributes | - | help |
--riscv-use-aa | - Enable the use of AA during codegen. | help |
--auto | - Use best guess | help |
--run-int | - Execute with the interpreter | help |
--run-jit | - Execute with JIT | help |
--run-llc | - Compile with LLC | help |
--run-llc-ia | - Compile with LLC with integrated assembler | help |
--compile-custom | - Use -compile-command to define a command to compile the bitcode. | help |
--run-custom | - Use -exec-command to define a command to execute the bitcode. | help |
--runtime-counter-relocation | - Enable relocating counters at runtime. | help |
--safe-auto | - Use best guess | help |
--safe-run-llc | - Compile with LLC | help |
--safe-run-custom | - Use -exec-command to define a command to execute the bitcode. | help |
--safe-path string | - Specify the path to the "safe" backend program | help |
--safe-tool-args string>... | - <safe-tool arguments>... | 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 0 to one less than the value of 'sampled-instr-period'. | 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 |
--save-temps | - Save temporary files | help |
--silence-passes | - Suppress output of running passes (both stdout and stderr) | help |
--skip-ret-exit-block | - Suppress counter promotion if exit blocks contain ret. | 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 |
--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 |
--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 |
--thinlto-assume-merged | - Assume the input has already undergone ThinLTO function importing and the other pre-optimization pipeline changes. | help |
--threads int | - | help |
--timeout seconds | - Number of seconds program is allowed to run before it is killed (default is 300s), 0 disables timeout | help |
--tool-args string>... | - <tool arguments>... | help |
--type-based-intrinsic-cost | - Calculate intrinsics cost based only on argument types | help |
--use-undef | - Use undef when generating programs. | help |
--verbose-errors | - Print the output of crashing program | 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-exnref | - WebAssembly exception handling (exnref) | help |
--wasm-enable-sjlj | - WebAssembly setjmp/longjmp handling | help |
--write-experimental-debuginfo | - Write debug info in the new non-intrinsic format. | 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-pad-max-prefix-size uint | - Maximum number of prefixes to use for padding | help |
--x86-relax-relocations | - Emit GOTPCRELX/REX_GOTPCRELX instead of GOTPCREL on x86-64 ELF | help |
--x86-sse2avx | - Specify that the assembler should encode SSE instructions with VEX prefix | 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 |