From 2d76a7846200fcbe518e6f73291a6cbda8864ea0 Mon Sep 17 00:00:00 2001 From: Pete Cooper Date: Tue, 8 Nov 2011 19:30:00 +0000 Subject: 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 --- lib/Transforms/Scalar/LICM.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'lib') diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp index b79bb1300f..8098b3608e 100644 --- a/lib/Transforms/Scalar/LICM.cpp +++ b/lib/Transforms/Scalar/LICM.cpp @@ -369,6 +369,8 @@ bool LICM::canSinkOrHoistInst(Instruction &I) { // 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; -- cgit v1.2.3