1*e13e95bcSyingopq//===- MipsInstrCompiler.td - Compiler Pseudos and Patterns -*- tablegen -*-===// 2*e13e95bcSyingopq// 3*e13e95bcSyingopq// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*e13e95bcSyingopq// See https://llvm.org/LICENSE.txt for license information. 5*e13e95bcSyingopq// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*e13e95bcSyingopq// 7*e13e95bcSyingopq//===----------------------------------------------------------------------===// 8*e13e95bcSyingopq// 9*e13e95bcSyingopq// This file describes the various pseudo instructions used by the compiler, 10*e13e95bcSyingopq// as well as Pat patterns used during instruction selection. 11*e13e95bcSyingopq// 12*e13e95bcSyingopq//===----------------------------------------------------------------------===// 13*e13e95bcSyingopq 14*e13e95bcSyingopq 15*e13e95bcSyingopqdef shiftMask_32 : PatFrag<(ops node:$lhs), (and node:$lhs, imm), [{ 16*e13e95bcSyingopq return isUnneededShiftMask(N, 5); 17*e13e95bcSyingopq}]>; 18*e13e95bcSyingopq 19*e13e95bcSyingopqdef shiftMask_64 : PatFrag<(ops node:$src0), (and node:$src0, imm), [{ 20*e13e95bcSyingopq return isUnneededShiftMask(N, 6); 21*e13e95bcSyingopq}]>; 22*e13e95bcSyingopq 23*e13e95bcSyingopqforeach width = [32, 64] in { 24*e13e95bcSyingopqdefvar shiftMask = !cast<SDPatternOperator>("shiftMask_"#width); 25*e13e95bcSyingopqdef mshl_#width : PatFrags<(ops node:$src0, node:$src1), 26*e13e95bcSyingopq [(shl node:$src0, node:$src1), (shl node:$src0, (shiftMask node:$src1))]>; 27*e13e95bcSyingopq 28*e13e95bcSyingopqdef msrl_#width : PatFrags<(ops node:$src0, node:$src1), 29*e13e95bcSyingopq [(srl node:$src0, node:$src1), (srl node:$src0, (shiftMask node:$src1))]>; 30*e13e95bcSyingopq 31*e13e95bcSyingopqdef msra_#width : PatFrags<(ops node:$src0, node:$src1), 32*e13e95bcSyingopq [(sra node:$src0, node:$src1), (sra node:$src0, (shiftMask node:$src1))]>; 33*e13e95bcSyingopq} 34