[LLVMdev] Creating a new project using LLVM

[zx w]

Hi Sands,
Thanks for you timely reply. :)
I tried to compile the C files into LLVM bitcode and then compile then using llc. But can I use this method to compile a group of files(with dependencies)? Because the gzip files I downloaded has a bunch of source code and it uses a makefile to compile/install. 
Z. Wu 
--- 12年6月27日，周三, Duncan Sands <baldrick at free.fr> 写道：

发件人: Duncan Sands <baldrick at free.fr>
主题: Re: [LLVMdev] Creating a new project using LLVM
收件人: llvmdev at cs.uiuc.edu
日期: 2012年6月27日,周三,下午3:41

Hi Z.Wu,

> I was doing some research on LLVM register allocator. I need to test my
> modification of the register allocator by using some test benchmarks.(Say I am
> using the gzip as a test program.) How can I make the whole gzip program using
> LLVM?

to compile C code like gzip, you need to use an LLVM front-end like clang or
dragonegg.  Probably you should compile to LLVM bitcode, for example using
"-c -O2 -emit-llvm" with clang.  You can then compile that to assembler
using an unmodified llc, and an llc that incorporates your changes.

Ciao, Duncan.

> I read the "LLVM Makefile Guide" documentation but still not clear about how to
> modify the makefile of the gzip.
>
> Z.Wu
>
>
>
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