OpenCL address space and mangling

[Michele Scandale]

On 08/24/2013 04:02 PM, Michele Scandale wrote:
> The pure solution would be the one proposed by Eli: I don't have any objection
> to this solution.
> The mangler now has a bug, so it must be fixed. The pure solution implicitly
> breaks the binary compatibility. If we do not have problem with this (so we
> consider a matter for the users to solve the problem, e.g. with a forced update
> of libraries) the right patch is to have a target independent mangling for OpenCL.
> 
> Still we would have problems if we consider SPIR: in its specification there is
> a fixed mangling scheme (that it's the one produced by the current mangler). In
> this case we have two choice: we change the SPIR mangling or we allow targets to
> override the target independent mangling for OpenCL with the one based on the
> TargetAddrSpaceMap.
> 
> *Based on all this would see the mangling proposed by Eli the default except for
> targets that explicitly requires a mangling scheme based on the target address
> spaces map (e.g. the SPIR target).*

In attachment a proposal to implement target independent mangling with the
option for targets to force the use of target address space based mangling.

Regards,
-Michele
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