[llvm] [AMDGPU] MCExpr-ify MC layer kernel descriptor (PR #80855)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,68 @@
+//===--- AMDGPUMCKernelDescriptor.h ---------------------------*- C++ -*---===//
+//
+// 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
+/// AMDHSA kernel descriptor MCExpr struct for use in MC layer. Uses
+/// AMDHSAKernelDescriptor.h for sizes and constants.
+///
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUMCKERNELDESCRIPTOR_H
+#define LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUMCKERNELDESCRIPTOR_H
+
+#include "llvm/Support/AMDHSAKernelDescriptor.h"
+
+namespace llvm {
+class MCExpr;
+class MCContext;
+namespace AMDGPU {
+
+struct MCKernelDescriptor {
+  const MCExpr *group_segment_fixed_size;
+  const MCExpr *private_segment_fixed_size;
+  const MCExpr *kernarg_size;
+  const MCExpr *compute_pgm_rsrc3;
+  const MCExpr *compute_pgm_rsrc1;
+  const MCExpr *compute_pgm_rsrc2;
+  const MCExpr *kernel_code_properties;
+  const MCExpr *kernarg_preload;
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arsenm wrote:

nullptr initialize everything

https://github.com/llvm/llvm-project/pull/80855