From 13c184de29c09294ed63b01ac43e1b46c049278e Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 28 Jan 2005 06:27:38 +0000 Subject: [PATCH] CopyFromReg produces two values. Make sure that we remember that both are legalized, and actually return the correct result when we legalize the chain first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19866 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 74f1c5526a0..b48c1b6aaba 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -206,7 +206,14 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { if (Tmp1 != Node->getOperand(0)) Result = DAG.getCopyFromReg(cast(Node)->getReg(), Node->getValueType(0), Tmp1); - break; + else + Result = Op.getValue(0); + + // Since CopyFromReg produces two values, make sure to remember that we + // legalized both of them. + AddLegalizedOperand(Op.getValue(0), Result); + AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); + return Result.getValue(Op.ResNo); case ISD::ImplicitDef: Tmp1 = LegalizeOp(Node->getOperand(0)); if (Tmp1 != Node->getOperand(0)) -- 2.34.1