From a743fada653dd1e4337c46b9addfcf6755550d50 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Wed, 29 Nov 2006 19:13:47 +0000 Subject: [PATCH] Avoid inifinite looping if READCYCLECOUNTER isn't custom lowered. llvm-svn: 32022 --- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 1c0be0ba52da..bf467b733d08 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1850,16 +1850,21 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, Node->getValueType(0))) { default: assert(0 && "This action is not supported yet!"); - case TargetLowering::Legal: break; + case TargetLowering::Legal: + Tmp1 = Result.getValue(0); + Tmp2 = Result.getValue(1); + break; case TargetLowering::Custom: Result = TLI.LowerOperation(Result, DAG); + Tmp1 = LegalizeOp(Result.getValue(0)); + Tmp2 = LegalizeOp(Result.getValue(1)); break; } // Since rdcc produce two values, make sure to remember that we legalized // both of them. - AddLegalizedOperand(SDOperand(Node, 0), LegalizeOp(Result.getValue(0))); - AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Result.getValue(1))); + AddLegalizedOperand(SDOperand(Node, 0), Tmp1); + AddLegalizedOperand(SDOperand(Node, 1), Tmp2); return Result; case ISD::SELECT: