Adjust loop size estimate for full unrolling;
GEP's don't usually become instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69631 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopUnroll.cpp b/lib/Transforms/Scalar/LoopUnroll.cpp
index 2025fb6..23757cd 100644
--- a/lib/Transforms/Scalar/LoopUnroll.cpp
+++ b/lib/Transforms/Scalar/LoopUnroll.cpp
@@ -89,6 +89,8 @@
// Ignore instructions only used by the loop terminator.
} else if (isa<DbgInfoIntrinsic>(I)) {
// Ignore debug instructions
+ } else if (isa<GetElementPtrInst>(I) && I->hasOneUse()) {
+ // Ignore GEP as they generally are subsumed into a load or store.
} else if (isa<CallInst>(I)) {
// Estimate size overhead introduced by call instructions which
// is higher than other instructions. Here 3 and 10 are magic