[llvm-dev] Question on GlobalISel Intermediate invariants

Kristof Beyls via llvm-dev llvm-dev at lists.llvm.org
Mon Feb 20 07:00:25 PST 2017

Hi Kumail,

I'm not aware of a clang option to dump out IR between specific passes.
I think the one way to do it is to let clang generate llvm-ir, and feed that into llc, and let llc print out the IR after the pass you're interested in, e.g.:
clang t.c -o- -S  -emit-llvm | llc -global-isel -print-after=irtranslator

If you want to see how the IR evolves after each pass, you can use the llc command line option -print-after-all.

Is this what you were looking for?



> On 20 Feb 2017, at 15:14, Kumail Ahmed via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> Hello, 
> I just started using the GlobalISel framework.  
> Is there a way to emit all intermediate invariants from IRTranslator to Instrution-Selection in a single instruction? It will be really handy. I mean something like '-save-temps' in clang.
> Best regards,
> Kumail Ahmed
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