From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 25 Apr 2008 08:55:28 +0000 (+0000)
Subject: Not checking for intrinsics which do not have a chain operand.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=419ace9bda6abaaa65560708064b210b4e48880f;p=oota-llvm.git

Not checking for intrinsics which do not have a chain operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50260 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index 1ca1e311449..8286cd05a03 100644
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -255,11 +255,12 @@ static void findNonImmUse(SDNode *Use, SDNode* Def, SDNode *ImmedUse,
       continue;
     if (N == Def) {
       if (Use == ImmedUse)
-        continue; // We are not looking for immediate use.
+        continue;  // We are not looking for immediate use.
       if (Use == Root) {
+        // Must be a chain reading node where it is possible to reach its own
+        // chain operand through a path started from another operand.
         assert(Use->getOpcode() == ISD::STORE ||
                Use->getOpcode() == X86ISD::CMP ||
-               Use->getOpcode() == ISD::INTRINSIC_WO_CHAIN ||
                Use->getOpcode() == ISD::INTRINSIC_W_CHAIN ||
                Use->getOpcode() == ISD::INTRINSIC_VOID);
         continue;