yaxunl marked 2 inline comments as done.
yaxunl added inline comments.
================
Comment at: clang/lib/CodeGen/CodeGenModule.cpp:1845-1846
+ }
+ if (getCodeGenOpts().EmitOpenCLArgMetadata ||
+ getCodeGenOpts().HIPSaveKernelArgName)
Fn->setMetadata("kernel_arg_name",
----------------
tra wrote:
> tra wrote:
> > Should we consolidate both options into `-fkernel-arg-info` and make
> > `-cl-kernel-arg-info` an alias to it?
> Also, this check is odd. For some reason only *arg name* metadata is set
> conditionally, but for whatever reason OpenCL sets other arg metadata
> unconditionally.
>
> Now I'm really curious what's so special about "kernel_arg_name" vs the other
> arg metadata.
> Should we consolidate both options into `-fkernel-arg-info` and make
> `-cl-kernel-arg-info` an alias to it?
-cl-kernel-arg-info is an OpenCL option defined in OpenCL spec, therefore is
made OpenCL only option. It would be confusing to allow it with other languages.
================
Comment at: clang/lib/CodeGen/CodeGenModule.cpp:1845-1846
+ }
+ if (getCodeGenOpts().EmitOpenCLArgMetadata ||
+ getCodeGenOpts().HIPSaveKernelArgName)
Fn->setMetadata("kernel_arg_name",
----------------
yaxunl wrote:
> tra wrote:
> > tra wrote:
> > > Should we consolidate both options into `-fkernel-arg-info` and make
> > > `-cl-kernel-arg-info` an alias to it?
> > Also, this check is odd. For some reason only *arg name* metadata is set
> > conditionally, but for whatever reason OpenCL sets other arg metadata
> > unconditionally.
> >
> > Now I'm really curious what's so special about "kernel_arg_name" vs the
> > other arg metadata.
> > Should we consolidate both options into `-fkernel-arg-info` and make
> > `-cl-kernel-arg-info` an alias to it?
>
> -cl-kernel-arg-info is an OpenCL option defined in OpenCL spec, therefore is
> made OpenCL only option. It would be confusing to allow it with other
> languages.
> Also, this check is odd. For some reason only *arg name* metadata is set
> conditionally, but for whatever reason OpenCL sets other arg metadata
> unconditionally.
>
> Now I'm really curious what's so special about "kernel_arg_name" vs the other
> arg metadata.
The other metadata are mandatory because they are necessary for OpenCL runtime
to set kernel argument.
The kernel argument name is emitted only with -cl-kernel-arg-info since it is
only used to support clGetKernelArgInfo which requires -cl-kernel-arg-info to
work.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D128022/new/
https://reviews.llvm.org/D128022
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