1 //===- SDNodeProperties.td - Common code for DAG isels ---*- tablegen -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 // Selection DAG Pattern Operations
12 class SDPatternOperator {
13 list<SDNodeProperty> Properties = [];
16 //===----------------------------------------------------------------------===//
17 // Selection DAG Node Properties.
19 // Note: These are hard coded into tblgen.
21 def SDNPCommutative : SDNodeProperty; // X op Y == Y op X
22 def SDNPAssociative : SDNodeProperty; // (X op Y) op Z == X op (Y op Z)
23 def SDNPHasChain : SDNodeProperty; // R/W chain operand and result
24 def SDNPOutGlue : SDNodeProperty; // Write a flag result
25 def SDNPInGlue : SDNodeProperty; // Read a flag operand
26 def SDNPOptInGlue : SDNodeProperty; // Optionally read a flag operand
27 def SDNPMayStore : SDNodeProperty; // May write to memory, sets 'mayStore'.
28 def SDNPMayLoad : SDNodeProperty; // May read memory, sets 'mayLoad'.
29 def SDNPSideEffect : SDNodeProperty; // Sets 'HasUnmodelledSideEffects'.
30 def SDNPMemOperand : SDNodeProperty; // Touches memory, has assoc MemOperand
31 def SDNPVariadic : SDNodeProperty; // Node has variable arguments.
32 def SDNPWantRoot : SDNodeProperty; // ComplexPattern gets the root of match
33 def SDNPWantParent : SDNodeProperty; // ComplexPattern gets the parent