[PATCH] Enable basic debug output for the MSP430 backend.

[David Blaikie]

On Wed, Sep 17, 2014 at 10:16 AM, Eric Christopher <echristo at gmail.com>
wrote:

> Sure, have at. I'm surprised that's all you need, but it's an obviously
> correct incremental patch as well. If you had some way to test it that'd be
> great too ;)
>

Any particular reason (I know nothing about msp430 - perhaps there's
something inherent there that I'm missing) this wouldn't be testable in the
usual manner? (bitcode + llc with a fixed triple + dwarfdump)


>
> -eric
>
> On Wed, Sep 17, 2014 at 10:06 AM, Iain Sandoe <iain at codesourcery.com>
> wrote:
>
>> Hi Adrian, Eric,
>>
>> It's sometimes useful to see what is needed to support backends with ints
>> smaller than 32bit.
>>
>> This is a patch to enable basic debug output on the msp430 in-tree
>> back-end so that it can be used to investigate such support.
>>
>> 1. The DWARF register numbers chosen have no particular rationale (but
>> they match one GCC implementation, at least, for R0-R15)
>>
>> 2. I have not implemented any of the CFI_ stuff
>>
>> however, this does still allow examination of basic variable handling
>> etc. (and the CFI stuff could be added as/when it becomes useful).  It's
>> certainly enough to investigate DWARF handling of variable pieces.
>>
>> cheers
>> Iain
>>
>>
>>
>>
>>
>>
>
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