[IR] Replace `isa<TerminatorInst>` with `isTerminator()`.

This is a bit awkward in a handful of places where we didn't even have
an instruction and now we have to see if we can build one. But on the
whole, this seems like a win and at worst a reasonable cost for removing
`TerminatorInst`.

All of this is part of the removal of `TerminatorInst` from the
`Instruction` type hierarchy.

llvm-svn: 340701

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp b/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp
index e7319637319..a6320d8dbf4 100644
--- a/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp
+++ b/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp
@@ -326,7 +326,7 @@ bool LoopRotate::rotateLoop(Loop *L, bool SimplifiedLatch) {
     // something that might trap, but isn't safe to hoist something that reads
     // memory (without proving that the loop doesn't write).
     if (L->hasLoopInvariantOperands(Inst) && !Inst->mayReadFromMemory() &&
-        !Inst->mayWriteToMemory() && !isa<TerminatorInst>(Inst) &&
+        !Inst->mayWriteToMemory() && !Inst->isTerminator() &&
         !isa<DbgInfoIntrinsic>(Inst) && !isa<AllocaInst>(Inst)) {
       Inst->moveBefore(LoopEntryBranch);
       continue;