fix fused_gemm_epilogue_op compile error (#45862)

paddle/fluid/operators/fused/fused_gemm_epilogue_op.cu

@@ -46,7 +46,7 @@ class FusedGemmEpilogueKernel : public framework::OpKernel<T> {
              << " , activation = " << activation;
     bool enable_auxiliary = reserve_space == nullptr ? false : true;
 
-    dev_ctx->Alloc<T>(out, out->numel() * sizeof(T));
+    dev_ctx.Alloc<T>(out, out->numel() * sizeof(T));
     auto* out_data = out->data<T>();
 
     auto x_mat_dims =
@@ -110,7 +110,7 @@ class FusedGemmEpilogueKernel : public framework::OpKernel<T> {
       } else {
         reserve_space_size = phi::product(out->dims()) * sizeof(T);
       }
-      dev_ctx->Alloc(reserve_space, out->type(), reserve_space_size);
+      dev_ctx.Alloc(reserve_space, out->type(), reserve_space_size);
       void* aux_data = reinterpret_cast<void*>(reserve_space->data<T>());
 
       PADDLE_ENFORCE_GPU_SUCCESS(
@@ -492,7 +492,7 @@ class FusedGemmEpilogueGradKernel : public framework::OpKernel<T> {
           workspace_size,
           phi::Stream(reinterpret_cast<phi::StreamId>(dev_ctx.stream())));
 
-      auto* dx_data = dev_ctx->Alloc<T>(dx, dx->numel() * sizeof(T));
+      auto* dx_data = dev_ctx.Alloc<T>(dx, dx->numel() * sizeof(T));
       const auto* y_data = y->data<T>();
       const auto* dout_data = dout->data<T>();
       const auto* a_data = kXGradAIsDZ ? dout_data : y_data;
@@ -600,7 +600,7 @@ class FusedGemmEpilogueGradKernel : public framework::OpKernel<T> {
               sizeof(epiloque_func_for_dy)));
 
       if (dbias) {
-        auto* dbias_data = dev_ctx->Alloc<T>(dbias, dbias->numel() * sizeof(T));
+        auto* dbias_data = dev_ctx.Alloc<T>(dbias, dbias->numel() * sizeof(T));
         PADDLE_ENFORCE_GPU_SUCCESS(
             platform::dynload::cublasLtMatmulDescSetAttribute(
                 dy_operation_desc,
@@ -613,7 +613,7 @@ class FusedGemmEpilogueGradKernel : public framework::OpKernel<T> {
           dev_ctx.GetPlace(),
           workspace_size,
           phi::Stream(reinterpret_cast<phi::StreamId>(dev_ctx.stream())));
-      auto* dy_data = dev_ctx->Alloc<T>(dy, dy->numel() * sizeof(T));
+      auto* dy_data = dev_ctx.Alloc<T>(dy, dy->numel() * sizeof(T));
       const auto* dout_data = dout->data<T>();
       const auto* x_data = x->data<T>();
       const auto* a_data = kYGradAIsDZ ? dout_data : x_data;