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Added support for ComplexPattern.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24638 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2005-12-08 04:28:48 +00:00
parent 670fd8f8dd
commit f20da7e1a7
1 changed files with 21 additions and 0 deletions
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21
lib/Target/TargetSelectionDAG.td
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@ -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;
}