[LLVMdev] "$llvmlibsdir" in test cases

[Tobias Grosser]

On 10/14/2010 10:10 AM, ether zhhb wrote:
> hi,
>
> we are developing a
> plugin(http://wiki.llvm.org/Polyhedral_optimization_framework) for
> LLVM, and need to find the LLVM libraries directory so we can locate
> the loadable module. The testing guide said that we can locate the
> libraries directory by the variable "$llvmlibsdir". So i put this
> option after opt in the RUN line of test case:
> -load=$llvmlibsdir/LLVMPolly.so. but i got:
> Error opening '/LLVMPolly.so': /LLVMPolly.so: cannot open shared
> object file: No such file or directory
>   it seems that the variable $llvmlibsdir is empty.
>
> as we also have a lit.site.cfg file:
> ...
> config.llvm_libs_dir = "/home/ether/work/build/lib"
> ...
>
> so i try "-load=$llvm_libs_dir/LLVMPolly.so" to load the module, but
> it do not work, too.

Hi ether,

I just found out we need to add support for this to the lit cfg file, as 
described at: http://llvm.org/cmds/lit.html
Look for the keyword "substitutions".

I pushed a fix to the polly repository.

Tobi