From 01f0e8561d8e95b1de94d3971b8ad0aa29c20951 Mon Sep 17 00:00:00 2001 From: Mon P Wang Date: Tue, 6 Apr 2010 08:27:51 +0000 Subject: [PATCH] Remove assert to treat memmove and memset like memcpy git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100521 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 8c0554d186d..af81b293267 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -3571,8 +3571,10 @@ SDValue SelectionDAG::getMemmove(SDValue Chain, DebugLoc dl, SDValue Dst, if (Result.getNode()) return Result; + // FIXME: If the memmove is volatile, lowering it to plain libc memmove may + // not be safe. See memcpy above for more details. + // Emit a library call. - assert(!isVol && "library memmove does not support volatile"); TargetLowering::ArgListTy Args; TargetLowering::ArgListEntry Entry; Entry.Ty = TLI.getTargetData()->getIntPtrType(*getContext()); @@ -3620,8 +3622,7 @@ SDValue SelectionDAG::getMemset(SDValue Chain, DebugLoc dl, SDValue Dst, if (Result.getNode()) return Result; - // Emit a library call. - assert(!isVol && "library memset does not support volatile"); + // Emit a library call. const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(*getContext()); TargetLowering::ArgListTy Args; TargetLowering::ArgListEntry Entry;