[PATCH] ARM: preserve undef flag in pseudo instruction expanders Was: [PATCH] improve arm machine code (make -verify-machineinstrs happier)

[Evan Cheng]

LGTM

Evan
On Oct 3, 2013, at 3:42 PM, Matthias Braun <mbraun at apple.com> wrote:

> Revised version with testcase.
> 
> Description: preserve undef flag in pseudo instruction expanders
> Copy over the whole register machine operand instead of creating a new one
> with an incomplete set of flags.
> 
> Greetings
> 	Matthias
> <ARM-preserve-undef-flag-in-pseudo-instruction-expand.patch>
> 
> On Oct 3, 2013, at 10:49 AM, Quentin Colombet <qcolombet at apple.com> wrote:
> 
>> Hi Matthias,
>> 
>> I haven’t looked into the details of the patches but I have a general comment:
>> Could you add a test case for each case you are fixing (possibly in the same test file)?
>> 
>> Thanks for working on that.
>> 
>> Cheers,
>> -Quentin
>> 
>> On Oct 3, 2013, at 10:41 AM, Matthias Braun <mbraun at apple.com> wrote:
>> 
>>> The attached 3 patches improve some cases in the ARM backend where bad code (in the sense of -verify-machineinstrs) was produced. Please review, thanks.
>>> 
>>> Greetings,
>>> 	Matthias
>>> <ARM-do-not-add-a-regmask-for-TAILJUMPs.patch><ARM-optimizeSelect-has-to-consider-the-previous-regi.patch><ARM-preserv-undef-flag-in-pseudo-instruction-expande.patch>_______________________________________________
>>> llvm-commits mailing list
>>> llvm-commits at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>> 
> 
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