Allow types to be omitted in output patterns.
This syntax is now preferred:
def : Pat<(subc i32:$b, i32:$c), (SUBCCrr $b, $c)>;
There is no reason to repeat the types in the output pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177844 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelMatcherGen.cpp b/utils/TableGen/DAGISelMatcherGen.cpp
index e91fd1e..ed41631 100644
--- a/utils/TableGen/DAGISelMatcherGen.cpp
+++ b/utils/TableGen/DAGISelMatcherGen.cpp
@@ -211,6 +211,12 @@
return AddMatcher(new CheckIntegerMatcher(II->getValue()));
}
+ // An UnsetInit represents a named node without any constraints.
+ if (N->getLeafValue() == UnsetInit::get()) {
+ assert(N->hasName() && "Unnamed ? leaf");
+ return;
+ }
+
DefInit *DI = dyn_cast<DefInit>(N->getLeafValue());
if (DI == 0) {
errs() << "Unknown leaf kind: " << *N << "\n";