[llvm] [SandboxVec] Legality boilerplate (PR #108650)

[Sriraman Tallam via llvm-commits]

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@@ -7,7 +7,58 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Transforms/Vectorize/SandboxVectorizer/Passes/BottomUpVec.h"
+#include "llvm/ADT/SmallVector.h"
 
 using namespace llvm::sandboxir;
 
-bool BottomUpVec::runOnFunction(Function &F) { return false; }
+namespace llvm::sandboxir {
+// TODO: This is a temporary function that returns some seeds.
+//       Replace this with SeedCollector's function when it lands.
+static llvm::SmallVector<Value *, 4> collectSeeds(BasicBlock &BB) {
+  llvm::SmallVector<Value *, 4> Seeds;
+  for (auto &I : BB)
+    if (auto *SI = llvm::dyn_cast<StoreInst>(&I))
+      Seeds.push_back(SI);
+  return Seeds;
+}
+
+static SmallVector<Value *, 4> getOperand(ArrayRef<Value *> Bndl,
+                                          unsigned OpIdx) {
+  SmallVector<Value *, 4> Operands;
+  for (Value *BndlV : Bndl) {
+    auto *BndlI = cast<Instruction>(BndlV);
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tmsri wrote:

Yes, resolving, sorry for the noise!

https://github.com/llvm/llvm-project/pull/108650