[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/DemoteRegToStack.cpp b/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
index 56ff03c..975b363 100644
--- a/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
+++ b/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
@@ -90,7 +90,7 @@ AllocaInst *llvm::DemoteRegToStack(Instruction &I, bool VolatileLoads,
   // careful if I is an invoke instruction, because we can't insert the store
   // AFTER the terminator instruction.
   BasicBlock::iterator InsertPt;
-  if (!isa<TerminatorInst>(I)) {
+  if (!I.isTerminator()) {
     InsertPt = ++I.getIterator();
     for (; isa<PHINode>(InsertPt) || InsertPt->isEHPad(); ++InsertPt)
       /* empty */;   // Don't insert before PHI nodes or landingpad instrs.