From 78717cd804b6d47d5e3d20cae7cb92f7467a9ec8 Mon Sep 17 00:00:00 2001 From: Richard Osborne Date: Tue, 9 Mar 2010 16:13:57 +0000 Subject: [PATCH] Canonicalize ladd constant to RHS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98058 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/XCore/XCoreISelLowering.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp index e59b18cd2a3..d8cbd037cb2 100644 --- a/lib/Target/XCore/XCoreISelLowering.cpp +++ b/lib/Target/XCore/XCoreISelLowering.cpp @@ -1105,6 +1105,10 @@ SDValue XCoreTargetLowering::PerformDAGCombine(SDNode *N, ConstantSDNode *N1C = dyn_cast(N1); EVT VT = N0.getValueType(); + // canonicalize constant to RHS + if (N0C && !N1C) + return DAG.getNode(XCoreISD::LADD, dl, DAG.getVTList(VT, VT), N1, N0, N2); + // fold (ladd 0, 0, x) -> 0, x & 1 if (N0C && N0C->isNullValue() && N1C && N1C->isNullValue()) { SDValue Carry = DAG.getConstant(0, VT);