[llvm] r327488 - [AMDGPU] Fix for DAGCombiner infinite loop in OCLtst

[Alexander Timofeev via llvm-commits]

Author: alex-t
Date: Wed Mar 14 02:48:51 2018
New Revision: 327488

URL: http://llvm.org/viewvc/llvm-project?rev=327488&view=rev
Log:
[AMDGPU] Fix for DAGCombiner infinite loop in OCLtst

Differential revision: https://reviews.llvm.org/D44417

Modified:
    llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h

Modified: llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h?rev=327488&r1=327487&r2=327488&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h Wed Mar 14 02:48:51 2018
@@ -1194,7 +1194,8 @@ public:
   /// encoding of the volatile flag, as well as bits used by subclasses. This
   /// function should only be used to compute a FoldingSetNodeID value.
   /// The HasDebugValue bit is masked out because CSE map needs to match
-  /// nodes with debug info with nodes without debug info.
+  /// nodes with debug info with nodes without debug info. Same is about
+  /// isDivergent bit.
   unsigned getRawSubclassData() const {
     uint16_t Data;
     union {
@@ -1203,6 +1204,7 @@ public:
     };
     memcpy(&RawSDNodeBits, &this->RawSDNodeBits, sizeof(this->RawSDNodeBits));
     SDNodeBits.HasDebugValue = 0;
+    SDNodeBits.IsDivergent = false;
     memcpy(&Data, &RawSDNodeBits, sizeof(RawSDNodeBits));
     return Data;
   }