LICM pass now understands invariant load metadata. Nothing generates this yet so it will currently never get used in real tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144107 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp
index b79bb13..8098b36 100644
--- a/lib/Transforms/Scalar/LICM.cpp
+++ b/lib/Transforms/Scalar/LICM.cpp
@@ -369,6 +369,8 @@
// in the same alias set as something that ends up being modified.
if (AA->pointsToConstantMemory(LI->getOperand(0)))
return true;
+ if (LI->getMetadata(LI->getContext().getMDKindID("invariant.load")))
+ return true;
// Don't hoist loads which have may-aliased stores in loop.
uint64_t Size = 0;