[llvm] [SDPatternMatch] Add `m_ConstInt` overloads with `uint64_t`/`int64_t` operands (PR #182615)

[Craig Topper via llvm-commits]

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@@ -1159,11 +1159,60 @@ struct ConstantInt_match {
                                       BindVal ? *BindVal : Discard);
   }
 };
+
+struct ConstantUnsigned64_match {
+  uint64_t &BindVal;
+
+  explicit ConstantUnsigned64_match(uint64_t &V) : BindVal(V) {}
+
+  template <typename MatchContext>
+  bool match(const MatchContext &Ctx, SDValue N) {
+    APInt V;
+    if (!ConstantInt_match(&V).match(Ctx, N))
+      return false;
+    if (V.getActiveBits() > 64)
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topperc wrote:

Use tryZExtValue()?

https://github.com/llvm/llvm-project/pull/182615