[Conv] Remove duplicate GetCKMaxWorkspaceSize declaration in 3D grouped-wrw solver

ConvHipImplicitGemm3DGroupWrwXdlops declared GetCKMaxWorkspaceSize twice:
a templated helper (per-dtype alpha/beta dispatch) plus a same-name
non-template dispatcher, which read as an accidental duplicate (and mixed
std::size_t / size_t).

Mirror the sibling CheckCKApplicability pattern in the same class: keep the
templated helper only and inline the dtype switch at the sole caller
(GetWorkspaceSize), exactly as IsApplicable does for CheckCKApplicability.
This removes the redundant member and the confusing declaration pair.
Behavior is unchanged.

Reported-by: Sree
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: JonathanLichtnerAMD

projects/miopen/src/include/miopen/conv/solvers.hpp

@@ -4645,8 +4645,7 @@ struct ConvHipImplicitGemm3DGroupWrwXdlops final
     bool CheckCKApplicability(const miopen::conv::ProblemDescription&) const;
 
     template <typename DataType>
-    std::size_t GetCKMaxWorkspaceSize(const miopen::conv::ProblemDescription&) const;
-    size_t GetCKMaxWorkspaceSize(const miopen::conv::ProblemDescription& problem) const;
+    size_t GetCKMaxWorkspaceSize(const miopen::conv::ProblemDescription&) const;
 };
 
 struct PerformanceConfigHipImplicitGemm3DGroupBwdXdlops

projects/miopen/src/solver/conv/conv_hip_implicit_gemm_3d_grouped_wrw_xdlops.cpp

@@ -557,30 +557,24 @@ ConvHipImplicitGemm3DGroupWrwXdlops::GetCKMaxWorkspaceSize(const ProblemDescript
 }
 
 size_t
-ConvHipImplicitGemm3DGroupWrwXdlops::GetCKMaxWorkspaceSize(const ProblemDescription& problem) const
+ConvHipImplicitGemm3DGroupWrwXdlops::GetWorkspaceSize(const ExecutionContext&,
+                                                      const ProblemDescription& problem) const
 {
+    size_t ck_ws_size = 0;
 #if MIOPEN_BACKEND_HIP && MIOPEN_USE_COMPOSABLEKERNEL
     switch(problem.GetInDataType())
     {
-    case miopenHalf: return GetCKMaxWorkspaceSize<ck::half_t>(problem);
-    case miopenFloat: return GetCKMaxWorkspaceSize<float>(problem);
-    case miopenInt8: return GetCKMaxWorkspaceSize<int8_t>(problem);
-    case miopenBFloat16: return GetCKMaxWorkspaceSize<ck::bhalf_t>(problem);
+    case miopenHalf: ck_ws_size = GetCKMaxWorkspaceSize<ck::half_t>(problem); break;
+    case miopenFloat: ck_ws_size = GetCKMaxWorkspaceSize<float>(problem); break;
+    case miopenInt8: ck_ws_size = GetCKMaxWorkspaceSize<int8_t>(problem); break;
+    case miopenBFloat16: ck_ws_size = GetCKMaxWorkspaceSize<ck::bhalf_t>(problem); break;
     case miopenInt64:
     case miopenInt32:
     case miopenFloat8_fnuz:
     case miopenBFloat8_fnuz:
     case miopenDouble: break;
     }
 #endif
-    return 0; // other types not applicable for this solver
-}
-
-size_t
-ConvHipImplicitGemm3DGroupWrwXdlops::GetWorkspaceSize(const ExecutionContext&,
-                                                      const ProblemDescription& problem) const
-{
-    auto ck_ws_size = GetCKMaxWorkspaceSize(problem);
     return GetWorkspaceSizeLayoutTransformConv(problem, ck_ws_size);
 }