[PATCH][OPENCL][SPIR] introduce SPIR calling conventions

[Sameer Sahasrabuddhe]

On 1/16/2015 8:33 PM, Pekka Jääskeläinen wrote:
> On 01/15/2015 05:28 AM, Sameer Sahasrabuddhe wrote:
>>
>> This implements Section 3.7 from the SPIR 1.2 spec:
>>
>>          SPIR kernels should use "spir_kernel" calling convention.
>>          Non-kernel functions use "spir_func" calling convention. All
>>          other calling conventions are disallowed.
>>
>> The patch works only for OpenCL source. Any other uses will need to 
>> ensure
>> that kernels are assigned the spir_kernel calling convention correctly.
>>
>> Note that the patch modifies how ASTContext determines the default 
>> calling
>> convention. This *may* need a closer look, but it does pass lit tests 
>> on all
>> targets.
>
> It looks fine to me.
>

Is that an LGTM?

Sameer.

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