[InstCombine] Signed saturation patterns
[llvm-core.git] / lib / Target / ARC / ARCMachineFunctionInfo.h
blobd4dcf9bf285c6bffaf12f34d4ec50ddeef3beffb
1 //===- ARCMachineFunctionInfo.h - ARC machine function info -----*- C++ -*-===//
2 //
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
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file declares ARC-specific per-machine-function information.
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H
14 #define LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H
16 #include "llvm/CodeGen/MachineFunction.h"
17 #include <vector>
19 namespace llvm {
21 /// ARCFunctionInfo - This class is derived from MachineFunction private
22 /// ARC target-specific information for each MachineFunction.
23 class ARCFunctionInfo : public MachineFunctionInfo {
24 virtual void anchor();
25 bool ReturnStackOffsetSet;
26 int VarArgsFrameIndex;
27 unsigned ReturnStackOffset;
29 public:
30 ARCFunctionInfo()
31 : ReturnStackOffsetSet(false), VarArgsFrameIndex(0),
32 ReturnStackOffset(-1U), MaxCallStackReq(0) {}
34 explicit ARCFunctionInfo(MachineFunction &MF)
35 : ReturnStackOffsetSet(false), VarArgsFrameIndex(0),
36 ReturnStackOffset(-1U), MaxCallStackReq(0) {
37 // Functions are 4-byte aligned.
38 MF.setAlignment(Align(4));
41 ~ARCFunctionInfo() {}
43 void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; }
44 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
46 void setReturnStackOffset(unsigned value) {
47 assert(!ReturnStackOffsetSet && "Return stack offset set twice");
48 ReturnStackOffset = value;
49 ReturnStackOffsetSet = true;
52 unsigned getReturnStackOffset() const {
53 assert(ReturnStackOffsetSet && "Return stack offset not set");
54 return ReturnStackOffset;
57 unsigned MaxCallStackReq;
60 } // end namespace llvm
62 #endif // LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H