================
@@ -11836,6 +11836,10 @@ def err_sycl_special_type_num_init_method : Error<
"types with 'sycl_special_class' attribute must have one and only one
'__init' "
"method defined">;
+def warn_cuda_maxclusterrank_sm_90 : Warning<
+ "maxclusterrank requires sm_90 or higher, CUDA arch provided: %0, ignoring "
+ "%1 attribute">, InGroup<IgnoredAttributes>;
----------------
jchlanda wrote:
The whole thing, this is analogous to how we currently handle:
```
__launch_bounds__(128, -2)
```
we issue a warning:
```
/home/dev/llvm/clang/test/SemaCUDA/launch_bounds_running_test.cu:5:24: warning:
'launch_bounds' attribute parameter 1 is negative and will be ignored
[-Wcuda-compat]
5 | __launch_bounds__(128, -2) void Test2Args(void);
| ^~
/home/dev/llvm/clang/test/SemaCUDA/Inputs/cuda.h:14:61: note: expanded from
macro '__launch_bounds__'
14 | #define __launch_bounds__(...)
__attribute__((launch_bounds(__VA_ARGS__)))
| ^~~~~~~~~~~
1 warning generated when compiling for host.
```
vs max cluster rank:
```
/home/dev/llvm/clang/test/SemaCUDA/launch_bounds_running_test.cu:5:27: warning:
'launch_bounds' attribute parameter 2 is negative and will be ignored
[-Wcuda-compat]
5 | __launch_bounds__(128, 2, -8) void Test2Args(void);
| ^~
/home/dev/llvm/clang/test/SemaCUDA/Inputs/cuda.h:14:61: note: expanded from
macro '__launch_bounds__'
14 | #define __launch_bounds__(...)
__attribute__((launch_bounds(__VA_ARGS__)))
| ^~~~~~~~~~~
1 warning generated when compiling for host.
```
and the resulting asm contains neither of the directives.
https://github.com/llvm/llvm-project/pull/66496
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