* Commit the fix (by Chris) for a tblgen type inferencing bug.

* Enhanced tblgen to handle instructions which have chain operand and writes a
chain result.
* Enhanced tblgen to handle instructions which produces no results. Part of
the change is a temporary hack which relies on instruction property (e.g.
isReturn, isBranch). The proper fix would be to change the .td syntax to
separate results dag from ops dag.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24587 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index be67754d3e..cee55d2856 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -84,6 +84,7 @@ namespace llvm {
     bool hasDelaySlot;
     bool usesCustomDAGSchedInserter;
     bool hasVariableNumberOfOperands;
+    bool hasCtrlDep;
 
     CodeGenInstruction(Record *R, const std::string &AsmStr);