Hi,

Could I get a review of these patches?

Thanks,

Tyler


> On Jul 27, 2015, at 4:45 PM, Tyler Nowicki <tnowi...@apple.com> wrote:
> 
> Please ignore the debug line in the LLVM late-evaluation patch. It won’t be 
> part of the commit.
> 
> +      DEBUG(dbgs() << "LV: Emitting analysis message.\n”);
> 
> Tyler
> 
>> On Jul 27, 2015, at 3:23 PM, Tyler Nowicki <tnowi...@apple.com 
>> <mailto:tnowi...@apple.com>> wrote:
>> 
>> Hi Hal,
>> 
>> Thanks for the review! No worries about the delay.
>> 
>>>> Could I get a review of these patches for cfe and llvm?
>>> 
>>> Hi Tyler,
>>> 
>>> I'm apologize for the delay. I think this generally looks good, but I don't 
>>> understand the motivation for introducing the additional FrontendOptions 
>>> member. Why not just make a subclass of 
>>> DiagnosticInfoOptimizationRemarkAnalysis that the frontend can handle 
>>> specially (and detect using the normal isa/dyn_cast mechanism?\
>> 
>> The diagnostic handling code doesn’t use isa or dyn_cast, rather it uses 
>> switches to select between different types. I modified the patch to use a 
>> subclass rather than a member variable. Let me know what patch you think 
>> would work out better?
>> 
>> 
>>>> I should have also said in my previous email that I am not thrilled
>>>> by the need to use O3 in the clang-side test.
>>> 
>>> So using -O2 or using -fvectorize does not help?
>> 
>> Using -O1 with -fvectorize seems to work, at least it is a smaller set of 
>> passes than O3.
>> 
>> I attached the updated patches. I also noticed that 
>> DiagnosticInfoOptimizationBase::classof() was incorrectly implemented. It 
>> would need its own diagnostic kind, but that doesn’t make sense because you 
>> would never instantiate the base class. I thought it was best just to remove 
>> it. See the third patch.
>> 
>> Tyler
>> 
>> <LLVM-Late-evaluation-of-vectorization-requirements.patch>
>> <Clang-Add-diagnostic-to-append-fp-commute-clang-options-to.patch>
>> <LLVM-Removed-unused-and-broken-classoff-method-in-base-cl.patch>
> 
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