[llvm] [SandboxVec][DAG] Build actual dependencies (PR #111094)

[Arthur Eubanks via llvm-commits]

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@@ -159,8 +168,37 @@ class DependencyGraph {
   /// The DAG spans across all instructions in this interval.
   Interval<Instruction> DAGInterval;
 
+  std::unique_ptr<BatchAAResults> BatchAA;
+
+  enum class DependencyType {
+    RAW,   ///> Read After Write
+    WAW,   ///> Write After Write
+    RAR,   ///> Read After Read
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aeubanks wrote:

it looks like the current patch doesn't distinguish between the two. are we planning on distinguishing the two at some point? RAR isn't really a dependency right?

https://github.com/llvm/llvm-project/pull/111094