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Date: Mon, 27 May 2013 08:20:18 +0530
From: Sayantan Datta <>
Subject: Re: AMD GCN ISA development

Hi Ronak,

On Fri, May 24, 2013 at 7:02 PM, Ronak <> wrote:

> While trying to align .isa in the inner elf of .elf, I had this thought,
> how kernel is going to run, if we decide to update .il and .isa
> simultaneously, such that each update will be different. With this, we have
> inconsistent kernel. Now two questions need to be asked..
> ** which update will actually run
I think it depends on which option you are using at runtime. e.g
"-fno-bin-amdil -fbin-exe" will run the .isa while "fbin-amdil
-fno-bin-exe" should run the il. By default if nothing is specified .isa
will run.

> **  Updating both files, will it add to the flexibility of optimizing
> opencl kernels.
Yes, it might. If the isa fails(which will for most devices) we might
fallback to il which is more versatile.


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