diff options
| -rw-r--r-- | lib/Target/TargetSelectionDAG.td | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/TargetSelectionDAG.td b/lib/Target/TargetSelectionDAG.td index 5be65e2933..996777f1ed 100644 --- a/lib/Target/TargetSelectionDAG.td +++ b/lib/Target/TargetSelectionDAG.td @@ -131,6 +131,10 @@ def SDTWritePort : SDTypeProfile<0, 2, [ // writeport SDTCisInt<0>, SDTCisInt<1> ]>; +def SDTLoad : SDTypeProfile<1, 1, [ // load + SDTCisInt<1> +]>; + //===----------------------------------------------------------------------===// // Selection DAG Node Properties. // @@ -220,6 +224,8 @@ def ret : SDNode<"ISD::RET" , SDTRet, [SDNPHasChain]>; def writeport : SDNode<"ISD::WRITEPORT" , SDTWritePort, [SDNPHasChain]>; +def load : SDNode<"ISD::LOAD" , SDTLoad, [SDNPHasChain]>; + //===----------------------------------------------------------------------===// // Selection DAG Condition Codes @@ -349,3 +355,18 @@ class Pattern<dag patternToMatch, list<dag> resultInstrs> { // 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; +} |