[clang] [llvm] [AMDGPU] Convert AMDGPUResourceUsageAnalysis pass from Module to MF pass (PR #102913)

[Janek van Oirschot via cfe-commits]

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@@ -0,0 +1,220 @@
+//===- AMDGPUMCResourceInfo.cpp --- MC Resource Info ----------------------===//
+//
+// 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
+/// \brief MC infrastructure to propagate the function level resource usage
+/// info.
+///
+//===----------------------------------------------------------------------===//
+
+#include "AMDGPUMCResourceInfo.h"
+#include "Utils/AMDGPUBaseInfo.h"
+#include "llvm/ADT/SmallSet.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCSymbol.h"
+
+using namespace llvm;
+
+MCSymbol *MCResourceInfo::getSymbol(StringRef FuncName, ResourceInfoKind RIK) {
+  switch (RIK) {
+  case RIK_NumVGPR:
+    return OutContext.getOrCreateSymbol(FuncName + Twine(".num_vgpr"));
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JanekvO wrote:

> Are these names guaranteed to be unique?
>From what I could tell, function names have to be unique at this point (e.g., name mangling already happened)

> Do we reserve any symbol with a '.' in it?
I'll have a look at this, I didn't see any reserved symbols while I was working on this but I haven't explicitly searched for it either.

https://github.com/llvm/llvm-project/pull/102913