LLVM: `llvmg++` tool

NAME

llvmg++

SYNOPSIS

llvmg++ [options] filename

DESCRIPTION

The llvmg++ command is the LLVM C++ front end. It is a modified version of g++ that takes C++ programs and compiles them into LLVM bytecode or assembly language, depending upon the options.

The llvmg++ program uses the gccas and gccld to assist with the creation of complete programs.

Being derived from the GNU Compiler Collection, llvmg++ has many of g++'s features and accepts most of g++'s options. It handles a number of g++'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 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 llvmg++ succeeds, it will exit with 0. Otherwise, if an error occurs, it will exit with a non-zero value.