Files
clang-p2996/llvm/lib/Target/PowerPC/PPCInstrDFP.td
Stefan Pintilie 94cefe41e6 [PowerPC] Add DFP compare instructions.
This patch adds the DFP compare instructions:
dcmpu, dcmpuq, dcmpo, dcmpoq

Reviewed By: amyk

Differential Revision: https://reviews.llvm.org/D150899
2023-06-02 12:48:40 -04:00

62 lines
2.6 KiB
TableGen

//===-- PPCInstrDFP.td - PowerPC Decimal Floating Point ----*- tablegen -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file describes the PowerPC Decimal Floating Point (DFP) instructions.
//
//===----------------------------------------------------------------------===//
// We provide no scheduling info for the DFP instructions.
// While they are not pseudo instructions we don't intend on scheduling them.
let hasNoSchedulingInfo = 1 in {
let mayRaiseFPException = 1, hasSideEffects = 0 in {
let isCommutable = 1 in {
defm DADD : XForm_28r<59, 2, (outs f8rc:$RST), (ins f8rc:$RA, f8rc:$RB),
"dadd", "$RST, $RA, $RB", IIC_FPGeneral, []>;
defm DADDQ : XForm_28r<63, 2, (outs fpairrc:$RST), (ins fpairrc:$RA, fpairrc:$RB),
"daddq", "$RST, $RA, $RB", IIC_FPGeneral, []>;
}
defm DSUB : XForm_28r<59, 514, (outs f8rc:$RST), (ins f8rc:$RA, f8rc:$RB),
"dsub", "$RST, $RA, $RB", IIC_FPGeneral, []>;
defm DSUBQ : XForm_28r<63, 514, (outs fpairrc:$RST), (ins fpairrc:$RA, fpairrc:$RB),
"dsubq", "$RST, $RA, $RB", IIC_FPGeneral, []>;
let isCommutable = 1 in {
defm DMUL : XForm_28r<59, 34, (outs f8rc:$RST), (ins f8rc:$RA, f8rc:$RB),
"dmul", "$RST, $RA, $RB", IIC_FPGeneral, []>;
defm DMULQ : XForm_28r<63, 34, (outs fpairrc:$RST), (ins fpairrc:$RA, fpairrc:$RB),
"dmulq", "$RST, $RA, $RB", IIC_FPGeneral, []>;
}
defm DDIV : XForm_28r<59, 546, (outs f8rc:$RST), (ins f8rc:$RA, f8rc:$RB),
"ddiv", "$RST, $RA, $RB", IIC_FPGeneral, []>;
defm DDIVQ : XForm_28r<63, 546, (outs fpairrc:$RST), (ins fpairrc:$RA, fpairrc:$RB),
"ddivq", "$RST, $RA, $RB", IIC_FPGeneral, []>;
let isCompare = 1 in {
def DCMPU : XForm_17<59, 642, (outs crrc:$BF), (ins f8rc:$RA, f8rc:$RB),
"dcmpu $BF, $RA, $RB", IIC_FPCompare>;
def DCMPUQ : XForm_17<63, 642, (outs crrc:$BF), (ins fpairrc:$RA, fpairrc:$RB),
"dcmpuq $BF, $RA, $RB", IIC_FPCompare>;
def DCMPO : XForm_17<59, 130, (outs crrc:$BF), (ins f8rc:$RA, f8rc:$RB),
"dcmpo $BF, $RA, $RB", IIC_FPCompare>;
def DCMPOQ : XForm_17<63, 130, (outs crrc:$BF), (ins fpairrc:$RA, fpairrc:$RB),
"dcmpoq $BF, $RA, $RB", IIC_FPCompare>;
}
}
}