vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
220 lines
5.9 KiB
ReStructuredText
220 lines
5.9 KiB
ReStructuredText
lli - directly execute programs from LLVM bitcode
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=================================================
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.. program:: lli
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SYNOPSIS
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--------
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:program:`lli` [*options*] [*filename*] [*program args*]
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DESCRIPTION
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-----------
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:program:`lli` directly executes programs in LLVM bitcode format. It takes a program
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in LLVM bitcode format and executes it using a just-in-time compiler or an
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interpreter.
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:program:`lli` is *not* an emulator. It will not execute IR of different architectures
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and it can only interpret (or JIT-compile) for the host architecture.
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The JIT compiler takes the same arguments as other tools, like :program:`llc`,
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but they don't necessarily work for the interpreter.
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If `filename` is not specified, then :program:`lli` reads the LLVM bitcode for the
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program from standard input.
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The optional *args* specified on the command line are passed to the program as
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arguments.
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GENERAL OPTIONS
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---------------
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.. option:: -fake-argv0=executable
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Override the ``argv[0]`` value passed into the executing program.
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.. option:: -force-interpreter={false,true}
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If set to true, use the interpreter even if a just-in-time compiler is available
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for this architecture. Defaults to false.
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.. option:: -help
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Print a summary of command line options.
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.. option:: -load=pluginfilename
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Causes :program:`lli` to load the plugin (shared object) named *pluginfilename* and use
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it for optimization.
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.. option:: -stats
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Print statistics from the code-generation passes. This is only meaningful for
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the just-in-time compiler, at present.
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.. option:: -time-passes
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Record the amount of time needed for each code-generation pass and print it to
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standard error.
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.. option:: -version
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Print out the version of :program:`lli` and exit without doing anything else.
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TARGET OPTIONS
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--------------
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.. option:: -mtriple=target triple
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Override the target triple specified in the input bitcode file with the
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specified string. This may result in a crash if you pick an
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architecture which is not compatible with the current system.
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.. option:: -march=arch
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Specify the architecture for which to generate assembly, overriding the target
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encoded in the bitcode file. See the output of **llc -help** for a list of
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valid architectures. By default this is inferred from the target triple or
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autodetected to the current architecture.
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.. option:: -mcpu=cpuname
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Specify a specific chip in the current architecture to generate code for.
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By default this is inferred from the target triple and autodetected to
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the current architecture. For a list of available CPUs, use:
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**llvm-as < /dev/null | llc -march=xyz -mcpu=help**
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.. option:: -mattr=a1,+a2,-a3,...
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Override or control specific attributes of the target, such as whether SIMD
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operations are enabled or not. The default set of attributes is set by the
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current CPU. For a list of available attributes, use:
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**llvm-as < /dev/null | llc -march=xyz -mattr=help**
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FLOATING POINT OPTIONS
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----------------------
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.. option:: -disable-excess-fp-precision
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Disable optimizations that may increase floating point precision.
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.. option:: -enable-no-infs-fp-math
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Enable optimizations that assume no Inf values.
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.. option:: -enable-no-nans-fp-math
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Enable optimizations that assume no NAN values.
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.. option:: -enable-unsafe-fp-math
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Causes :program:`lli` to enable optimizations that may decrease floating point
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precision.
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.. option:: -soft-float
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Causes :program:`lli` to generate software floating point library calls instead of
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equivalent hardware instructions.
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CODE GENERATION OPTIONS
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-----------------------
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.. option:: -code-model=model
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Choose the code model from:
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.. code-block:: text
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default: Target default code model
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tiny: Tiny code model
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small: Small code model
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kernel: Kernel code model
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medium: Medium code model
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large: Large code model
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.. option:: -disable-post-RA-scheduler
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Disable scheduling after register allocation.
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.. option:: -disable-spill-fusing
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Disable fusing of spill code into instructions.
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.. option:: -jit-enable-eh
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Exception handling should be enabled in the just-in-time compiler.
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.. option:: -join-liveintervals
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Coalesce copies (default=true).
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.. option:: -nozero-initialized-in-bss
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Don't place zero-initialized symbols into the BSS section.
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.. option:: -pre-RA-sched=scheduler
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Instruction schedulers available (before register allocation):
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.. code-block:: text
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=default: Best scheduler for the target
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=none: No scheduling: breadth first sequencing
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=simple: Simple two pass scheduling: minimize critical path and maximize processor utilization
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=simple-noitin: Simple two pass scheduling: Same as simple except using generic latency
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=list-burr: Bottom-up register reduction list scheduling
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=list-tdrr: Top-down register reduction list scheduling
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=list-td: Top-down list scheduler
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.. option:: -regalloc=allocator
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Register allocator to use (default=linearscan)
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.. code-block:: text
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=bigblock: Big-block register allocator
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=linearscan: linear scan register allocator
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=local: local register allocator
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=simple: simple register allocator
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.. option:: -relocation-model=model
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Choose relocation model from:
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.. code-block:: text
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=default: Target default relocation model
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=static: Non-relocatable code
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=pic: Fully relocatable, position independent code
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=dynamic-no-pic: Relocatable external references, non-relocatable code
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.. option:: -spiller
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Spiller to use (default=local)
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.. code-block:: text
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=simple: simple spiller
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=local: local spiller
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.. option:: -x86-asm-syntax=syntax
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Choose style of code to emit from X86 backend:
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.. code-block:: text
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=att: Emit AT&T-style assembly
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=intel: Emit Intel-style assembly
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EXIT STATUS
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-----------
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If :program:`lli` fails to load the program, it will exit with an exit code of 1.
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Otherwise, it will return the exit code of the program it executes.
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SEE ALSO
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--------
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:manpage:`llc(1)`
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