[TI removal] Make `getTerminator()` return a generic `Instruction`.

This removes the primary remaining API producing `TerminatorInst` which
will reduce the rate at which code is introduced trying to use it and
generally make it much easier to remove the remaining APIs across the
codebase.

Also clean up some of the stragglers that the previous mechanical update
of variables missed.

Users of LLVM and out-of-tree code generally will need to update any
explicit variable types to handle this. Replacing `TerminatorInst` with
`Instruction` (or `auto`) almost always works. Most of these edits were
made in prior commits using the perl one-liner:
```
perl -i -ple 's/TerminatorInst(\b.* = .*getTerminator\(\))/Instruction\1/g'
```

This also my break some rare use cases where people overload for both
`Instruction` and `TerminatorInst`, but these should be easily fixed by
removing the `TerminatorInst` overload.

llvm-svn: 344504

1 files changed, 9 insertions, 9 deletions

diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 79b575b78cd..5fdbf219009 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -1536,12 +1536,12 @@ void BoUpSLP::buildTree_rec(ArrayRef<Value *> VL, unsigned Depth,
       // Check for terminator values (e.g. invoke).
       for (unsigned j = 0; j < VL.size(); ++j)
         for (unsigned i = 0, e = PH->getNumIncomingValues(); i < e; ++i) {
-          TerminatorInst *Term = dyn_cast<TerminatorInst>(
-              cast<PHINode>(VL[j])->getIncomingValueForBlock(PH->getIncomingBlock(i)));
-          if (Term) {
-            LLVM_DEBUG(
-                dbgs()
-                << "SLP: Need to swizzle PHINodes (TerminatorInst use).\n");
+          Instruction *Term = dyn_cast<Instruction>(
+              cast<PHINode>(VL[j])->getIncomingValueForBlock(
+                  PH->getIncomingBlock(i)));
+          if (Term && Term->isTerminator()) {
+            LLVM_DEBUG(dbgs()
+                       << "SLP: Need to swizzle PHINodes (terminator use).\n");
             BS.cancelScheduling(VL, VL0);
             newTreeEntry(VL, false, UserTreeIdx, ReuseShuffleIndicies);
             return;
@@ -3652,7 +3652,7 @@ BoUpSLP::vectorizeTree(ExtraValueToDebugLocsMap &ExternallyUsedValues) {
       if (PHINode *PH = dyn_cast<PHINode>(User)) {
         for (int i = 0, e = PH->getNumIncomingValues(); i != e; ++i) {
           if (PH->getIncomingValue(i) == Scalar) {
-            TerminatorInst *IncomingTerminator =
+            Instruction *IncomingTerminator =
                 PH->getIncomingBlock(i)->getTerminator();
             if (isa<CatchSwitchInst>(IncomingTerminator)) {
               Builder.SetInsertPoint(VecI->getParent(),
@@ -3960,7 +3960,7 @@ bool BoUpSLP::BlockScheduling::extendSchedulingRegion(Value *V,
     ScheduleEnd = I->getNextNode();
     if (isOneOf(S, I) != I)
       CheckSheduleForI(I);
-    assert(ScheduleEnd && "tried to vectorize a TerminatorInst?");
+    assert(ScheduleEnd && "tried to vectorize a terminator?");
     LLVM_DEBUG(dbgs() << "SLP:  initialize schedule region to " << *I << "\n");
     return true;
   }
@@ -3996,7 +3996,7 @@ bool BoUpSLP::BlockScheduling::extendSchedulingRegion(Value *V,
         ScheduleEnd = I->getNextNode();
         if (isOneOf(S, I) != I)
           CheckSheduleForI(I);
-        assert(ScheduleEnd && "tried to vectorize a TerminatorInst?");
+        assert(ScheduleEnd && "tried to vectorize a terminator?");
         LLVM_DEBUG(dbgs() << "SLP:  extend schedule region end to " << *I
                           << "\n");
         return true;