| Andrew Scull | 5e1ddfa | 2018-08-14 10:06:54 +0100 | [diff] [blame] | 1 | //===- SDNodeProperties.td - Common code for DAG isels ---*- tablegen -*-===// |
| 2 | // |
| Andrew Walbran | 16937d0 | 2019-10-22 13:54:20 +0100 | [diff] [blame] | 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 |
| Andrew Scull | 5e1ddfa | 2018-08-14 10:06:54 +0100 | [diff] [blame] | 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | class SDNodeProperty; |
| 10 | |
| 11 | // Selection DAG Pattern Operations |
| 12 | class SDPatternOperator { |
| 13 | list<SDNodeProperty> Properties = []; |
| 14 | } |
| 15 | |
| 16 | //===----------------------------------------------------------------------===// |
| 17 | // Selection DAG Node Properties. |
| 18 | // |
| 19 | // Note: These are hard coded into tblgen. |
| 20 | // |
| 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 |