From f0b3ba6752a49a8868d423ddc2704a52b7101571 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Wed, 29 Nov 2006 08:26:18 +0000 Subject: [PATCH] Allow target to custom lower READCYCLECOUNTER (when it doesn't have to be expanded). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32016 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 5b15dfb2100..1c0be0ba52d 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1847,11 +1847,19 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { case ISD::READCYCLECOUNTER: Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain Result = DAG.UpdateNodeOperands(Result, Tmp1); + switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, + Node->getValueType(0))) { + default: assert(0 && "This action is not supported yet!"); + case TargetLowering::Legal: break; + case TargetLowering::Custom: + Result = TLI.LowerOperation(Result, DAG); + break; + } // Since rdcc produce two values, make sure to remember that we legalized // both of them. - AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); - AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); + AddLegalizedOperand(SDOperand(Node, 0), LegalizeOp(Result.getValue(0))); + AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Result.getValue(1))); return Result; case ISD::SELECT: -- 2.34.1