[llvm] [AMDGPU] New AMDGPUInsertSingleUseVDST pass (PR #72388)

[Carl Ritson via llvm-commits]

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@@ -0,0 +1,120 @@
+//===- AMDGPUInsertSingleUseVDST.cpp - Insert s_singleuse_vdst instructions ==//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+/// \file
+/// Insert s_singleuse_vdst instructions on GFX11.5+ to mark regions of VALU
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perlfu wrote:

Currently this only marks regions of 1?

https://github.com/llvm/llvm-project/pull/72388