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Hi Sebastien,</div>
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<br>
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Clang does have support for numbered address spaces via the __attribute__((address_space(N))) syntax. These address spaces map down to addrspace() in LLVM IR, and addrspaces in LLVM IR have arbitrary semantics unknown to LLVM itself.</div>
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<br>
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However, there is no way to define custom address space keywords without adding them explicitly to the lexing and parsing, and there is also no way for a target to express how its address spaces are supposed to be related (subspaces, conversions etc). I have
an initial patch to add support for target AS compatibility here (<a href="https://reviews.llvm.org/D62574" id="LPlnk859506">https://reviews.llvm.org/D62574</a>) but hit some snags and have not had the bandwidth to finish it. I don't think a lot of people
really require this, so it's hard to justify working on it.</div>
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/ Bevin<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> llvm-dev <llvm-dev-bounces@lists.llvm.org> on behalf of Sebastien Le Duc via llvm-dev <llvm-dev@lists.llvm.org><br>
<b>Sent:</b> Wednesday, June 24, 2020 4:25 PM<br>
<b>To:</b> 'llvm-dev' <llvm-dev@lists.llvm.org><br>
<b>Subject:</b> [llvm-dev] Target specific named address spaces</font>
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<div class="PlainText">Hi,<br>
Is there a way to implement named address spaces with clang/llvm as it is<br>
possible with gcc ?<br>
<br>
We would like to have our own named address space that would be recognized<br>
by the frontend.<br>
<br>
Thanks in advance!<br>
Regards,<br>
Sebastien<br>
<br>
<br>
<br>
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