commit 3567d3d2ecad91a135de45841f130a480d722006
author Sanjoy Das <sanjoy@playingwithpointers.com> Wed Sep 27 21:45:19 2017 +0000
committer Sanjoy Das <sanjoy@playingwithpointers.com> Wed Sep 27 21:45:19 2017 +0000
tree 243e3d744de32c438cc353b50157f4e5bac4d4d2
parent 283f56ac03cfa4168cdd45045539e28e8d9fc92e

Rename LoopUnrollStatus to LoopUnrollResult; NFC

A "Result" suffix is more appropriate here

llvm-svn: 314350

llvm/lib/Transforms/Utils/LoopUnroll.cpp

diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp
index 1e645ec..5357596 100644
--- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp
+++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp
@@ -291,7 +291,7 @@
 ///
 /// This utility preserves LoopInfo. It will also preserve ScalarEvolution and
 /// DominatorTree if they are non-null.
-LoopUnrollStatus llvm::UnrollLoop(
+LoopUnrollResult llvm::UnrollLoop(
     Loop *L, unsigned Count, unsigned TripCount, bool Force, bool AllowRuntime,
     bool AllowExpensiveTripCount, bool PreserveCondBr, bool PreserveOnlyFirst,
     unsigned TripMultiple, unsigned PeelCount, bool UnrollRemainder,
@@ -301,19 +301,19 @@
   BasicBlock *Preheader = L->getLoopPreheader();
   if (!Preheader) {
     DEBUG(dbgs() << "  Can't unroll; loop preheader-insertion failed.\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   BasicBlock *LatchBlock = L->getLoopLatch();
   if (!LatchBlock) {
     DEBUG(dbgs() << "  Can't unroll; loop exit-block-insertion failed.\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   // Loops with indirectbr cannot be cloned.
   if (!L->isSafeToClone()) {
     DEBUG(dbgs() << "  Can't unroll; Loop body cannot be cloned.\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   // The current loop unroll pass can only unroll loops with a single latch
@@ -327,7 +327,7 @@
     // The loop-rotate pass can be helpful to avoid this in many cases.
     DEBUG(dbgs() <<
              "  Can't unroll; loop not terminated by a conditional branch.\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   auto CheckSuccessors = [&](unsigned S1, unsigned S2) {
@@ -337,14 +337,14 @@
   if (!CheckSuccessors(0, 1) && !CheckSuccessors(1, 0)) {
     DEBUG(dbgs() << "Can't unroll; only loops with one conditional latch"
                     " exiting the loop can be unrolled\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   if (Header->hasAddressTaken()) {
     // The loop-rotate pass can be helpful to avoid this in many cases.
     DEBUG(dbgs() <<
           "  Won't unroll loop: address of header block is taken.\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   if (TripCount != 0)
@@ -360,7 +360,7 @@
   // Don't enter the unroll code if there is nothing to do.
   if (TripCount == 0 && Count < 2 && PeelCount == 0) {
     DEBUG(dbgs() << "Won't unroll; almost nothing to do\n");
-    return LoopUnrollStatus::Unmodified;
+    return LoopUnrollResult::Unmodified;
   }
 
   assert(Count > 0);
@@ -436,7 +436,7 @@
       DEBUG(
           dbgs() << "Wont unroll; remainder loop could not be generated"
                     "when assuming runtime trip count\n");
-      return LoopUnrollStatus::Unmodified;
+      return LoopUnrollResult::Unmodified;
     }
   }
 
@@ -861,8 +861,8 @@
     }
   }
 
-  return CompletelyUnroll ? LoopUnrollStatus::FullyUnrolled
-                          : LoopUnrollStatus::PartiallyUnrolled;
+  return CompletelyUnroll ? LoopUnrollResult::FullyUnrolled
+                          : LoopUnrollResult::PartiallyUnrolled;
 }
 
 /// Given an llvm.loop loop id metadata node, returns the loop hint metadata