[llvm] Add ConstantRangeList::unionWith() and ::intersectWith() (PR #96547)

[Arthur Eubanks via llvm-commits]

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@@ -94,4 +94,122 @@ TEST_F(ConstantRangeListTest, Insert) {
   EXPECT_TRUE(CRL == Expected);
 }
 
+ConstantRangeList GetCRL(const SmallVector<std::pair<APInt, APInt>, 2> &Pairs) {
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aeubanks wrote:

does ArrayRef work here?

https://github.com/llvm/llvm-project/pull/96547