From 7e12875c899faa9284562ee7e83be06a341f513c Mon Sep 17 00:00:00 2001 From: George Burgess IV Date: Mon, 24 Dec 2018 05:55:50 +0000 Subject: [LoopIdioms] More LocationSize::precise annotations; NFC Both of these places reference memset-like loops. Memset is precise. Trying to keep these patches super small so they're easily post-commit verifiable, as requested in D44748. llvm-svn: 350044 --- llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'llvm/lib/Target/Hexagon') diff --git a/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp b/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp index 702d68fad9b..985f41f3a7d 100644 --- a/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp +++ b/llvm/lib/Target/Hexagon/HexagonLoopIdiomRecognition.cpp @@ -1975,7 +1975,8 @@ mayLoopAccessLocation(Value *Ptr, ModRefInfo Access, Loop *L, // If the loop iterates a fixed number of times, we can refine the access // size to be exactly the size of the memset, which is (BECount+1)*StoreSize if (const SCEVConstant *BECst = dyn_cast(BECount)) - AccessSize = (BECst->getValue()->getZExtValue() + 1) * StoreSize; + AccessSize = LocationSize::precise((BECst->getValue()->getZExtValue() + 1) * + StoreSize); // TODO: For this to be really effective, we have to dive into the pointer // operand in the store. Store to &A[i] of 100 will always return may alias -- cgit v1.2.3