[llvm] Add a pass to calculate machine function's cfg hash to detect whether… (PR #84145)

[Rahman Lavaee via llvm-commits]

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@@ -254,6 +254,11 @@ static cl::opt<bool>
     GCEmptyBlocks("gc-empty-basic-blocks", cl::init(false), cl::Hidden,
                   cl::desc("Enable garbage-collecting empty basic blocks"));
 
+/// Enable calculating machine function's cfg hash.
+static cl::opt<bool> UseMachineFunctionCFGHash(
+    "mf-cfg-hash", cl::init(false), cl::Hidden,
+    cl::desc("Enable calculating machine function's cfg hash."));
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rlavaee wrote:

Could you please rename and rephrase the description of this option? It doesn't mention what it will be used for.

https://github.com/llvm/llvm-project/pull/84145