From 83cce8e7ab8d5577ea8b8077a22f89e5ac4d645c Mon Sep 17 00:00:00 2001 From: Stuart Hastings Date: Tue, 21 Dec 2010 17:16:58 +0000 Subject: Fix indentation, add comment. llvm-svn: 122345 --- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp') diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index a60b8719372..a3fc3a35529 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -253,13 +253,15 @@ void SelectionDAGLegalize::LegalizeDAG() { /// FindCallEndFromCallStart - Given a chained node that is part of a call /// sequence, find the CALLSEQ_END node that terminates the call sequence. static SDNode *FindCallEndFromCallStart(SDNode *Node, int depth = 0) { + // Nested CALLSEQ_START/END constructs aren't yet legal, + // but we can DTRT and handle them correctly here. if (Node->getOpcode() == ISD::CALLSEQ_START) depth++; else if (Node->getOpcode() == ISD::CALLSEQ_END) { - depth--; - if (depth == 0) - return Node; - } + depth--; + if (depth == 0) + return Node; + } if (Node->use_empty()) return 0; // No CallSeqEnd -- cgit v1.2.3