blob: 7ad329a64424954b4df4ecc5d9809ce2e560266b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
//=- LoongArchISelDAGToDAG.h - A dag to dag inst selector for LoongArch ---===//
//
// 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 defines an instruction selector for the LoongArch target.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHISELDAGTODAG_H
#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHISELDAGTODAG_H
#include "LoongArch.h"
#include "LoongArchTargetMachine.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
// LoongArch-specific code to select LoongArch machine instructions for
// SelectionDAG operations.
namespace llvm {
class LoongArchDAGToDAGISel : public SelectionDAGISel {
const LoongArchSubtarget *Subtarget = nullptr;
public:
explicit LoongArchDAGToDAGISel(LoongArchTargetMachine &TM)
: SelectionDAGISel(TM) {}
StringRef getPassName() const override {
return "LoongArch DAG->DAG Pattern Instruction Selection";
}
bool runOnMachineFunction(MachineFunction &MF) override {
Subtarget = &MF.getSubtarget<LoongArchSubtarget>();
return SelectionDAGISel::runOnMachineFunction(MF);
}
void Select(SDNode *Node) override;
bool SelectBaseAddr(SDValue Addr, SDValue &Base);
bool selectShiftMask(SDValue N, unsigned ShiftWidth, SDValue &ShAmt);
bool selectShiftMaskGRLen(SDValue N, SDValue &ShAmt) {
return selectShiftMask(N, Subtarget->getGRLen(), ShAmt);
}
bool selectShiftMask32(SDValue N, SDValue &ShAmt) {
return selectShiftMask(N, 32, ShAmt);
}
bool selectSExti32(SDValue N, SDValue &Val);
bool selectZExti32(SDValue N, SDValue &Val);
// Include the pieces autogenerated from the target description.
#include "LoongArchGenDAGISel.inc"
};
} // namespace llvm
#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHISELDAGTODAG_H
|
