[llvm] [memprof] Undrift MemProfRecord (PR #120138)

[Kazu Hirata via llvm-commits]

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@@ -171,6 +171,10 @@ static cl::opt<std::string>
                                  cl::desc("The default memprof options"),
                                  cl::Hidden, cl::init(""));
 
+static cl::opt<bool> UndriftProfile("memprof-undrift-profile",
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kazutakahirata wrote:

I've renamed the option to `-memprof-salvage-stale-profile`.  Please take a look.  Thanks!

https://github.com/llvm/llvm-project/pull/120138