linjamaki marked an inline comment as done.
linjamaki added inline comments.


================
Comment at: clang/include/clang/Driver/Options.td:1534
+    HelpText<"Specify maximum SPIR-V version which can be emitted">;
+def spirv_ext_EQ : CommaJoined<["--"], "spirv-ext">,
+    HelpText<"Specify comma separated list of allowed/disallowed SPIR-V "
----------------
Anastasia wrote:
> Is this flag expected to be similar to `-cl-ext`?
> 
> https://clang.llvm.org/docs/OpenCLSupport.html#cmdoption-cl-ext
> 
> It might be good to see how those can align? I imagine for HIP you haven't 
> used such flags yet?
> Is this flag expected to be similar to `-cl-ext`?
> 
> https://clang.llvm.org/docs/OpenCLSupport.html#cmdoption-cl-ext
> 
> It might be good to see how those can align? 

It is similar to -cl-ext. I thought it would make sense to have --spirv-ext for 
defining allowed SPIR-V extensions via the clang driver. I did not think that 
having both the -cl-ext and the --spirv-ext at the same time may conflict 
and/or contradict so I’ll remove the options here (--spirv-max-version too). 
Let’s introduce them in D112410 if needed.

> I imagine for HIP you haven't used such flags yet?

HIPSPV tool chain passes --spirv-max-version and --spirv-ext options to the 
LLVM-SPIR-V translator for overriding its defaults.




Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112404/new/

https://reviews.llvm.org/D112404

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