[Codegen] Alter the default promotion for saturating adds and subs
[llvm-complete.git] / lib / Target / PowerPC / PPCTargetMachine.h
blobfd1d14ae32d4acb5b4e90bfab4fa3bf6f8eb4462
1 //===-- PPCTargetMachine.h - Define TargetMachine for PowerPC ---*- 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 the PowerPC specific subclass of TargetMachine.
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
14 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
16 #include "PPCInstrInfo.h"
17 #include "PPCSubtarget.h"
18 #include "llvm/IR/DataLayout.h"
19 #include "llvm/Target/TargetMachine.h"
21 namespace llvm {
23 /// Common code between 32-bit and 64-bit PowerPC targets.
24 ///
25 class PPCTargetMachine final : public LLVMTargetMachine {
26 public:
27 enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 };
28 private:
29 std::unique_ptr<TargetLoweringObjectFile> TLOF;
30 PPCABI TargetABI;
32 mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap;
34 public:
35 PPCTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
36 StringRef FS, const TargetOptions &Options,
37 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
38 CodeGenOpt::Level OL, bool JIT);
40 ~PPCTargetMachine() override;
42 const PPCSubtarget *getSubtargetImpl(const Function &F) const override;
43 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
44 // subtargets are per-function entities based on the target-specific
45 // attributes of each function.
46 const PPCSubtarget *getSubtargetImpl() const = delete;
48 // Pass Pipeline Configuration
49 TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
51 TargetTransformInfo getTargetTransformInfo(const Function &F) override;
53 TargetLoweringObjectFile *getObjFileLowering() const override {
54 return TLOF.get();
56 bool isELFv2ABI() const { return TargetABI == PPC_ABI_ELFv2; }
57 bool isPPC64() const {
58 const Triple &TT = getTargetTriple();
59 return (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le);
62 } // end namespace llvm
64 #endif