#define DEBUG_TYPE "loop-unroll"
#include "llvm/Transforms/Utils/UnrollLoop.h"
-#include "llvm/BasicBlock.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Analysis/LoopIterator.h"
#include "llvm/Analysis/LoopPass.h"
#include "llvm/Analysis/ScalarEvolution.h"
+#include "llvm/IR/BasicBlock.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
// Erase basic block from the function...
// ScalarEvolution holds references to loop exit blocks.
- if (ScalarEvolution *SE = LPM->getAnalysisIfAvailable<ScalarEvolution>()) {
- if (Loop *L = LI->getLoopFor(BB))
- SE->forgetLoop(L);
+ if (LPM) {
+ if (ScalarEvolution *SE = LPM->getAnalysisIfAvailable<ScalarEvolution>()) {
+ if (Loop *L = LI->getLoopFor(BB))
+ SE->forgetLoop(L);
+ }
}
LI->removeBlock(BB);
BB->eraseFromParent();