[LLVMdev] LLVM + FORTRAN 95

[David Greene]

On Tuesday 03 November 2009 17:24, Nilesh Mahajan wrote:
=
> By AST I mean Abstract Syntax Tree. We are writing an optimization
> pass for some FORTRAN95 + MPI code that requires us to analyze the
> AST. We thought of 2 ways of doing this:
> 1. Compile the code using Clang/llvm-gfortran, get the textual AST
> dump (somehow), analyze the AST dump using Ruby, modify it and then
> feed back the modified AST to LLVM.
> 2. Do the analysis as an LLVM module.
> From your comments, I get the feeling that 2nd option is the better option.

It's the only option right now unless you want to hack the output of
gfortran and somehow feed it back into gfortran.  You REALLY don't want
to try that.  This is why we need flang.

                           -Dave