[clang] [compiler-rt] [llvm] [InstrFDO][TypeProf] Implement binary instrumentation and profile read/write (PR #66825)

[Snehasish Kumar via cfe-commits]

================
@@ -429,20 +439,36 @@ uint64_t ComputeHash(StringRef K);
 class InstrProfSymtab {
 public:
   using AddrHashMap = std::vector<std::pair<uint64_t, uint64_t>>;
+  using RangeHashMap =
+      std::vector<std::pair<std::pair<uint64_t, uint64_t>, uint64_t>>;
----------------
snehasish wrote:

Can you change the element type to a structure with 3 elements? E.g. `struct { 
uint64_t Start, End, Md5Value }`;

https://github.com/llvm/llvm-project/pull/66825
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