lfortran - modern interactive LLVM-based Fortran compiler

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−h, −−help: Print this help message and exit

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−S: Emit assembly, do not assemble or link

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−c: Compile and assemble, do not link

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−o TEXT: Specify the file to place the compiler’s output into

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−v: Be more verbose

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−E: Preprocess only; do not compile, assemble, or link

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−l TEXT ...: Link library option

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−L TEXT ...: Library path option

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−I TEXT ...: Include path

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−J TEXT: Where to save mod files

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−g: Compile with debugging information

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−−debug−with−line−column: Convert the linear location info into line + column in the debugging information

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−D TEXT ...: Define <macro>=<value> (or 1 if <value> omitted)

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−−version: Display compiler version information

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−W TEXT ...: Linker flags

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−f TEXT ...: All −f* flags (only −fPIC supported for now)

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−−cpp: Enable C preprocessing

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−−fixed−form: Use fixed form Fortran source parsing

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−−fixed−form−infer: Use heuristics to infer if a file is in fixed form

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−−no−prescan: Turn off prescan

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−−show−prescan: Show tokens for the given file and exit

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−−show−tokens: Show tokens for the given file and exit

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−−show−ast: Show AST for the given file and exit

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−−show−asr: Show ASR for the given file and exit

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−−with−intrinsic−mods: Show intrinsic modules in ASR

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−−show−ast−f90: Show Fortran from AST for the given file and exit

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−−no−color: Turn off colored AST/ASR

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−−no−indent: Turn off Indented print ASR/AST

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−−tree: Tree structure print ASR/AST

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−−json: Print ASR/AST Json format

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−−clojure: Print ASR in clojure format

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−−no−loc: Skip location information in ASR/AST Json format

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−−visualize: Print ASR/AST Visualization

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−−pass TEXT: Apply the ASR pass and show ASR (implies –show−asr)

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−−skip−pass TEXT: Skip an ASR pass in the default pipeline

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−−show−llvm: Show LLVM IR for the given file and exit

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−−show−cpp: Show C++ translation source for the given file and exit

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−−show−c: Show C translation source for the given file and exit

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−−show−asm: Show assembly for the given file and exit

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−−show−wat: Show WAT (WebAssembly Text Format) and exit

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−−show−julia: Show Julia translation source for the given file and exit

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−−show−fortran: Show Fortran translation source for the given file and exit

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−−show−stacktrace: Show internal stacktrace on compiler errors

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−−symtab−only: Only create symbol tables in ASR (skip executable stmt)

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−−time−report: Show compilation time report

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−−static: Create a static executable

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−−no−warnings: Turn off all warnings

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−−no−error−banner: Turn off error banner

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−−error−format TEXT=human: Control how errors are produced (human, short)

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−−backend TEXT=llvm: Select a backend (llvm, cpp, x86, wasm, fortran)

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−−openmp: Enable OpenMP

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−−separate−compilation: Generate object code into .o files

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−−rtlib: Include the full runtime library in the LLVM output

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−−use−loop−variable−after−loop: Allow using loop variable after the loop

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−−fast: Best performance (disable strict standard compliance)

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−−link−with−gcc: Calls GCC for linking instead of clang

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−−target TEXT: Generate code for the given target

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−−print−targets: Print the registered targets

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−−implicit−typing: Allow implicit typing

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−−implicit−interface: Allow implicit interface

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−−implicit−argument−casting: Allow implicit argument casting

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−−print−leading−space: Print leading white space if format is unspecified

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−−interactive−parse: Use interactive parse

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−−verbose: Print debugging statements

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−−dump−all−passes: Apply all the passes and dump the ASR into a file

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−−dump−all−passes−fortran: Apply all passes and dump the ASR after each pass into a Fortran file

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−−cumulative: Apply all the passes cumulatively till the given pass

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−−realloc−lhs: Reallocate left−hand side automatically

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−−module−mangling: Mangles the module name

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−−global−mangling: Mangles all the global symbols

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−−intrinsic−mangling: Mangles all the intrinsic symbols

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−−all−mangling: Mangles all possible symbols

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−−bindc−mangling: Mangles functions with ABI bind(c)

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−−apply−fortran−mangling: Mangle symbols with Fortran supported syntax

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−−mangle−underscore: Mangles with underscore

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−−legacy−array−sections: Enables passing array items as sections if required

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−−ignore−pragma: Ignores all the pragmas

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−−stack−arrays: Allocate memory for arrays on stack

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fmt: Format Fortran source files.

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kernel: Run in Jupyter kernel mode.

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mod: Fortran mod file utilities.

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pywrap: Python wrapper generator