add infrastructure to support forming selectnodeto. Not used yet
because I have to go on another detour first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97362 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelMatcherOpt.cpp b/utils/TableGen/DAGISelMatcherOpt.cpp
index 1ce5733..7953457 100644
--- a/utils/TableGen/DAGISelMatcherOpt.cpp
+++ b/utils/TableGen/DAGISelMatcherOpt.cpp
@@ -56,6 +56,7 @@
}
}
+ // Zap movechild -> moveparent.
if (MoveChildMatcher *MC = dyn_cast<MoveChildMatcher>(N))
if (MoveParentMatcher *MP =
dyn_cast<MoveParentMatcher>(MC->getNext())) {
@@ -63,6 +64,14 @@
return ContractNodes(MatcherPtr);
}
+ // Turn EmitNode->CompleteMatch into SelectNodeTo if we can.
+ if (EmitNodeMatcher *EN = dyn_cast<EmitNodeMatcher>(N))
+ if (CompleteMatchMatcher *CM = cast<CompleteMatchMatcher>(EN->getNext())) {
+ (void)CM;
+
+
+ }
+
ContractNodes(N->getNextPtr());
}