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<!---======================= begin_copyright_notice ============================
Copyright (C) 2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ==========================-->
# VCB (VC BiF Compiler)
VCB is a tool for precompilation of BiF Modules. The primary usage is
to precompile emulation BiF.
VCB is statically linked with VCCodeGen library, so it can access
target-specific transformations.
It can be extended to other types of BiF Modules if necessary.
Currently, there are 2 primary modes of operation:
1. Compilation of input LLVM IR for a particular target.
Command line usage:
```
vcb -o out.bc -cpu <PLATFORM> <INPUT_FILE>
# PLATFORM - name of target (SKL, BDW, etc).
# INPUT_FILE - path to generic bitcode file.
```
2. Generation of code that allows VC compiler to obtain target-specific
precompiled emulation library.
```
vcb -BiFUnique -o out.cpp --symb <BifSymbol> <CONFIG_PATH>
# CONFIG_PATH - path to configuration file that contain information about
# where to find platform-speicifc BiF for the requested
# architectures.
# BifSymbol - prefix to use by internal variables in the generated code.
```
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