From: Stuart Hastings <stuart@apple.com>
Date: Tue, 21 Dec 2010 17:07:24 +0000 (+0000)
Subject: Missing logic for nested CALLSEQ_START/END.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2965e69e040d86002128b91a439eb9bfc6b83df1;p=oota-llvm.git

Missing logic for nested CALLSEQ_START/END.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122342 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 661a7ad6d87..a60b8719372 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -255,8 +255,11 @@ void SelectionDAGLegalize::LegalizeDAG() {
 static SDNode *FindCallEndFromCallStart(SDNode *Node, int depth = 0) {
   if (Node->getOpcode() == ISD::CALLSEQ_START)
     depth++;
-  if ((Node->getOpcode() == ISD::CALLSEQ_END) && (depth == 1))
-    return Node;
+  else if (Node->getOpcode() == ISD::CALLSEQ_END) {
+      depth--;
+      if (depth == 0)
+        return Node;
+    }
   if (Node->use_empty())
     return 0;   // No CallSeqEnd