[llvm] [SLP][NFC] Redesign schedule bundle, separate from schedule data, NFC (PR #131625)

[Simon Pilgrim via llvm-commits]

================
@@ -18581,10 +18784,13 @@ void BoUpSLP::scheduleBlock(BlockScheduling *BS) {
 
 #if !defined(NDEBUG) || defined(EXPENSIVE_CHECKS)
   // Check that all schedulable entities got scheduled
-  for (auto *I = BS->ScheduleStart; I != BS->ScheduleEnd; I = I->getNextNode()) {
-    ScheduleData *SD = BS->getScheduleData(I);
-    if (SD && SD->isSchedulingEntity() && SD->hasValidDependencies())
-      assert(SD->IsScheduled && "must be scheduled at this point");
+  for (auto *I = BS->ScheduleStart; I != BS->ScheduleEnd;
+       I = I->getNextNode()) {
+    ArrayRef<ScheduleBundle *> Bundles = BS->getScheduleBundles(I);
+    if (!Bundles.empty()) {
+      for (ScheduleBundle *Bundle : Bundles)
+        assert(Bundle->isScheduled() && "must be scheduled at this point");
----------------
RKSimon wrote:

Use assert(all_of()) ?

https://github.com/llvm/llvm-project/pull/131625