[PATCH] ARM: preserve undef flag in pseudo instruction expanders Was: [PATCH] improve arm machine code (make -verify-machineinstrs happier)
evan.cheng at apple.com
Thu Oct 3 15:46:03 PDT 2013
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.
> 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.
>> 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.
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