Tool for gcc GIMPLE modification?

Question

I need to add to gcc support of an OpenMP-like (directive) language. I know it is possible to dump GIMPLE code and then "undump" it and continue compilation. I want to modify the dumped DIMPLE to add calls of my dynamic library, modify variables, and so on. Is there any handy tool to do this?

EDIT: Perhaps LLVM is what I need. Currently I am interested in how to transform GIMPLE to LLVM IR. Also, is there a way to get information what line of source code corresponds to concrete operator of IR?

Doesn't the gcc frontend for LLVM do just that, that is, have the gcc compiler generate code in LLVM Bytecode format. — MetallicPriest, Feb 02 '12 at 18:06

score 2 · Answer 1 · answered Mar 01 '11 at 11:56

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Depends on what you exactly need, you might be able to do this using GCC Plugins.

answered Mar 01 '11 at 11:56

Amir Gonnen

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thanks Amir, but it seems that only MELT fits my needs and i have reasons not to use it: 1. lisp isn't good for me 2. it's unripe – Vlad Krylov Mar 01 '11 at 16:23
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MELT is an existing GCC plugin. But instead, you could consider developing your own GCC plugin to suit your needs. – Amir Gonnen Mar 01 '11 at 17:04

score 1 · Answer 2 · answered Mar 03 '11 at 06:55

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GIMPLE => LLVM IR translator is called "llvm-gcc" (or DragonEgg if you want a GCC plugin). The standard way of storing the map between lines of source language and something in LLVM IR is via emission of the debug information.

answered Mar 03 '11 at 06:55

Anton Korobeynikov

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Tool for gcc GIMPLE modification?

2 Answers2