LLVM: llvmgcc tool

NAME

llvmgcc

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.

The llvmgcc program uses the LLVM assembler gccas and the LLVM linker gccld to do the work of creating complete programs.

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.

Below you will find several commonly used options:

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 bytecode executable. Rather, compile the source file into an LLVM bytecode file. This bytecode file can then be linked with other bytecode files later to generate a full LLVM executable.
-o filename
Specify the output file to be filename. If filename is -, then llvmgcc sends its output to standard output.
-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