1 //===- SDNodeProperties.td - Common code for DAG isels ---*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 // Selection DAG Pattern Operations
13 class SDPatternOperator {
14 list<SDNodeProperty> Properties = [];
17 //===----------------------------------------------------------------------===//
18 // Selection DAG Node Properties.
20 // Note: These are hard coded into tblgen.
22 def SDNPCommutative : SDNodeProperty; // X op Y == Y op X
23 def SDNPAssociative : SDNodeProperty; // (X op Y) op Z == X op (Y op Z)
24 def SDNPHasChain : SDNodeProperty; // R/W chain operand and result
25 def SDNPOutGlue : SDNodeProperty; // Write a flag result
26 def SDNPInGlue : SDNodeProperty; // Read a flag operand
27 def SDNPOptInGlue : SDNodeProperty; // Optionally read a flag operand
28 def SDNPMayStore : SDNodeProperty; // May write to memory, sets 'mayStore'.
29 def SDNPMayLoad : SDNodeProperty; // May read memory, sets 'mayLoad'.
30 def SDNPSideEffect : SDNodeProperty; // Sets 'HasUnmodelledSideEffects'.
31 def SDNPMemOperand : SDNodeProperty; // Touches memory, has assoc MemOperand
32 def SDNPVariadic : SDNodeProperty; // Node has variable arguments.
33 def SDNPWantRoot : SDNodeProperty; // ComplexPattern gets the root of match
34 def SDNPWantParent : SDNodeProperty; // ComplexPattern gets the parent