From 62fd269c146d9023efe32644e44cd97b88631d4f Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 7 Jan 2005 21:09:37 +0000 Subject: [PATCH] After legalizing a DAG, delete dead nodes to save space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19346 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index c8369aa1c61..a3a758f0aad 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -167,7 +167,6 @@ SelectionDAGLegalize::SelectionDAGLegalize(TargetLowering &tli, setValueTypeAction(MVT::f32, Promote); } - void SelectionDAGLegalize::LegalizeDAG() { SDOperand OldRoot = DAG.getRoot(); SDOperand NewRoot = LegalizeOp(OldRoot); @@ -177,11 +176,7 @@ void SelectionDAGLegalize::LegalizeDAG() { LegalizedNodes.clear(); // Remove dead nodes now. - if (OldRoot != NewRoot) - // Delete all of these efficiently first. - ; - - // Then scan AllNodes. + DAG.RemoveDeadNodes(OldRoot.Val); } SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {