[Hexagon] Do not promote terminator instructions in Hexagon loop idioms
llvm-svn: 351369
diff --git a/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp b/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp
index 985f41f..e828a48 100644
--- a/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp
@@ -1001,6 +1001,7 @@
void PolynomialMultiplyRecognize::promoteTo(Instruction *In,
IntegerType *DestTy, BasicBlock *LoopB) {
Type *OrigTy = In->getType();
+ assert(!OrigTy->isVoidTy() && "Invalid instruction to promote");
// Leave boolean values alone.
if (!In->getType()->isIntegerTy(1))
@@ -1081,7 +1082,8 @@
std::transform(LoopB->begin(), LoopB->end(), std::back_inserter(LoopIns),
[](Instruction &In) { return &In; });
for (Instruction *In : LoopIns)
- promoteTo(In, DestTy, LoopB);
+ if (!In->isTerminator())
+ promoteTo(In, DestTy, LoopB);
// Fix up the PHI nodes in the exit block.
Instruction *EndI = ExitB->getFirstNonPHI();
