man llvmgcc (Commandes) - LLVM C front-end
NAME
llvmgcc - LLVM C front-end
SYNOPSIS
llvmgcc [options] filename
DESCRIPTION
The llvmgcc command is the LLVM C front end. It is a modified version of gcc that takes C programs and compiles them into LLVM bytecode or assembly language, depending upon the options.
Unless the -S option is specified, llvmgcc will use the gccas program to perform some optimizations and create an LLVM bytecode file. Unless the -c option is specified, llvmgcc will also use the gccld program to perform further optimizations and link the resulting bytecode file(s) with support libraries to create an executable program.
Being derived from the GNU Compiler Collection, llvmgcc has many of gcc's features and accepts most of gcc's options. It handles a number of gcc's extensions to the C programming language.
OPTIONS
- --help
- Print a summary of command line options.
- -S
- Do not generate an LLVM bytecode file. Rather, compile the source file into an LLVM assembly language file.
- -c
- Do not generate a linked executable. Rather, compile the source file into an LLVM bytecode file. This bytecode file can then be linked with other bytecode files later on to generate a full LLVM executable.
- -o filename
- Specify the output file to be filename.
- -I directory
- Add a directory to the header file search path. This option can be repeated.
- -L directory
- Add directory to the library search path. This option can be repeated.
- -lname
- Link in the library libname.[bc | a | so]. This library should be a bytecode library.
- -Wl,option
- Pass option to the linker (usually gccld).
EXIT STATUS
If llvmgcc succeeds, it will exit with 0. Otherwise, if an error occurs, it will exit with a non-zero value.
SEE ALSO
llvmg++, gccas, gccld
AUTHORS
Maintained by the LLVM Team (<http://llvm.cs.uiuc.edu>).