just like they can opt into getting the root of the pattern being
matched, allow ComplexPatterns to opt into getting the parent node
of the operand being matched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114472 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelMatcherEmitter.cpp b/utils/TableGen/DAGISelMatcherEmitter.cpp
index 5117737..3c669da 100644
--- a/utils/TableGen/DAGISelMatcherEmitter.cpp
+++ b/utils/TableGen/DAGISelMatcherEmitter.cpp
@@ -633,7 +633,7 @@
// Emit CompletePattern matchers.
// FIXME: This should be const.
if (!ComplexPatterns.empty()) {
- OS << "bool CheckComplexPattern(SDNode *Root, SDValue N,\n";
+ OS << "bool CheckComplexPattern(SDNode *Root, SDNode *Parent, SDValue N,\n";
OS << " unsigned PatternNo, SmallVectorImpl<SDValue> &Result) {\n";
OS << " unsigned NextRes = Result.size();\n";
OS << " switch (PatternNo) {\n";
@@ -655,6 +655,11 @@
if (P.hasProperty(SDNPWantRoot))
OS << "Root, ";
+ // If the complex pattern wants the parent of the operand being matched,
+ // pass it in as the next argument.
+ if (P.hasProperty(SDNPWantParent))
+ OS << "Parent, ";
+
OS << "N";
for (unsigned i = 0; i != NumOps; ++i)
OS << ", Result[NextRes+" << i << ']';