[LLVMdev] adding comment

[reed kotler]

Maybe adding it to CommentFlag would be slightly better.

On 04/17/2014 02:23 AM, Daniel Sanders wrote:
> Would adding a flag to MachineInstr::MIFlag do the trick? I'm thinking that fast isel could ensure that a flag (e.g. MIFlag::FastISel) is added to the instructions it creates, then the instruction printer could optionally emit a comment for instructions that have this flag.
>
>> -----Original Message-----
>> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu]
>> On Behalf Of Reed Kotler
>> Sent: 16 April 2014 22:17
>> To: LLVMdev at cs.uiuc.edu
>> Subject: Re: [LLVMdev] adding comment
>>
>> On 04/16/2014 02:06 PM, reed kotler wrote:
>>> Is there a simple way to add a comment in the machine instructions of
>>> a basic block?
>>>
>>> Ideally something that can be used with machine instruction builder.
>>>
>>> Tia.
>>>
>>> Reed
>>
>> In this case, I am working on the fast instruction selector for mips.
>>
>> I want to be able to tag instructions or regions of instructions that are
>> emitted by the fast instruction selector as opposed to the normal
>> mechanism.
>>
>> In fast instruction selector can always report that it cannot emit instructions
>> for some construct and then that part falls on the normal mechanism; though
>> in some cases the actual machine instructions emitted would be the same.
>>
>> So I want to be able to look for some kind of tag in the make check tests.
>>
>> Tia.
>>
>> Reed
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