Added support for ComplexPattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24638 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetSelectionDAG.td b/lib/Target/TargetSelectionDAG.td
index 5be65e2..996777f 100644
--- a/lib/Target/TargetSelectionDAG.td
+++ b/lib/Target/TargetSelectionDAG.td
@@ -131,6 +131,10 @@
SDTCisInt<0>, SDTCisInt<1>
]>;
+def SDTLoad : SDTypeProfile<1, 1, [ // load
+ SDTCisInt<1>
+]>;
+
//===----------------------------------------------------------------------===//
// Selection DAG Node Properties.
//
@@ -220,6 +224,8 @@
def writeport : SDNode<"ISD::WRITEPORT" , SDTWritePort, [SDNPHasChain]>;
+def load : SDNode<"ISD::LOAD" , SDTLoad, [SDNPHasChain]>;
+
//===----------------------------------------------------------------------===//
// Selection DAG Condition Codes
@@ -349,3 +355,18 @@
// not needing a full list.
class Pat<dag pattern, dag result> : Pattern<pattern, [result]>;
+//===----------------------------------------------------------------------===//
+// Complex pattern definitions.
+//
+// Complex patterns, e.g. X86 addressing mode, requires pattern matching code
+// in C++. NumOperands is the number of operands returned by the select function;
+// SelectFunc is the name of the function used to pattern match the max. pattern;
+// RootNodes are the list of possible root nodes of the sub-dags to match.
+// e.g. X86 addressing mode - def addr : ComplexPattern<4, "SelectAddr", [add]>;
+//
+class ComplexPattern<ValueType ty, int numops, string fn, list<SDNode> roots = []> {
+ ValueType Ty = ty;
+ int NumOperands = numops;
+ string SelectFunc = fn;
+ list<SDNode> RootNodes = roots;
+}