[SYCL][Graph] Fix potential issue with command buffer commands (#13224)

Bensuo · web-flow · commit 3c7f99d891cd · 2024-04-02T15:14:03.000+02:00
- Fix uninitialized pointer values leading to trying to call
piExtCommandBufferReleaseCommand on backends which don't support update,
which may return as an unsupported feature. Initializing pointers to 0
prevents this call from happening.
diff --git a/sycl/source/detail/graph_impl.cpp b/sycl/source/detail/graph_impl.cpp
@@ -655,7 +655,7 @@ sycl::detail::pi::PiExtSyncPoint exec_graph_impl::enqueueNodeDirect(
     findRealDeps(Deps, N.lock(), MPartitionNodes[Node]);
   }
   sycl::detail::pi::PiExtSyncPoint NewSyncPoint;
-  sycl::detail::pi::PiExtCommandBufferCommand NewCommand;
+  sycl::detail::pi::PiExtCommandBufferCommand NewCommand = 0;
   pi_int32 Res = sycl::detail::enqueueImpCommandBufferKernel(
       Ctx, DeviceImpl, CommandBuffer,
       *static_cast<sycl::detail::CGExecKernel *>((Node->MCommandGroup.get())),

Original file line number	Diff line number	Diff line change
`@@ -655,7 +655,7 @@ sycl::detail::pi::PiExtSyncPoint exec_graph_impl::enqueueNodeDirect(`
`655`	`655`	`findRealDeps(Deps, N.lock(), MPartitionNodes[Node]);`
`656`	`656`	`}`
`657`	`657`	`sycl::detail::pi::PiExtSyncPoint NewSyncPoint;`
`658`		`- sycl::detail::pi::PiExtCommandBufferCommand NewCommand;`
	`658`	`+ sycl::detail::pi::PiExtCommandBufferCommand NewCommand = 0;`
`659`	`659`	`pi_int32 Res = sycl::detail::enqueueImpCommandBufferKernel(`
`660`	`660`	`Ctx, DeviceImpl, CommandBuffer,`
`661`	`661`	`static_cast<sycl::detail::CGExecKernel >((Node->MCommandGroup.get())),`