[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/IR/Instruction.cpp b/llvm/lib/IR/Instruction.cpp
index 5441d645b23..75e7413a47d 100644
--- a/llvm/lib/IR/Instruction.cpp
+++ b/llvm/lib/IR/Instruction.cpp
@@ -592,7 +592,7 @@ bool Instruction::mayThrow() const {
 
 bool Instruction::isSafeToRemove() const {
   return (!isa<CallInst>(this) || !this->mayHaveSideEffects()) &&
-         !isa<TerminatorInst>(this);
+         !this->isTerminator();
 }
 
 const Instruction *Instruction::getNextNonDebugInstruction() const {