LLVM  17.0.0git
PPCLegalizerInfo.cpp
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1 //===- PPCLegalizerInfo.h ----------------------------------------*- 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 /// \file
9 /// This file implements the targeting of the Machinelegalizer class for PowerPC
10 //===----------------------------------------------------------------------===//
11 
12 #include "PPCLegalizerInfo.h"
13 #include "llvm/Support/Debug.h"
14 
15 #define DEBUG_TYPE "ppc-legalinfo"
16 
17 using namespace llvm;
18 using namespace LegalizeActions;
19 
21  using namespace TargetOpcode;
22  const LLT P0 = LLT::pointer(0, 64);
23  const LLT S1 = LLT::scalar(1);
24  const LLT S8 = LLT::scalar(8);
25  const LLT S16 = LLT::scalar(16);
26  const LLT S32 = LLT::scalar(32);
27  const LLT S64 = LLT::scalar(64);
28  getActionDefinitionsBuilder(G_IMPLICIT_DEF).legalFor({S64});
29  getActionDefinitionsBuilder(G_CONSTANT)
30  .legalFor({S32, S64})
31  .clampScalar(0, S64, S64);
32  getActionDefinitionsBuilder({G_ZEXT, G_SEXT, G_ANYEXT})
33  .legalForCartesianProduct({S64}, {S1, S8, S16, S32})
34  .clampScalar(0, S64, S64);
35  getActionDefinitionsBuilder({G_AND, G_OR, G_XOR})
36  .legalFor({S64})
37  .clampScalar(0, S64, S64);
38  getActionDefinitionsBuilder({G_ADD, G_SUB})
39  .legalFor({S64})
40  .clampScalar(0, S64, S64);
41 
42  getActionDefinitionsBuilder({G_FADD, G_FSUB, G_FMUL, G_FDIV})
43  .legalFor({S32, S64});
44 
45  getActionDefinitionsBuilder(G_FCMP).legalForCartesianProduct({S1},
46  {S32, S64});
47 
48  getActionDefinitionsBuilder({G_FPTOSI, G_FPTOUI})
49  .legalForCartesianProduct({S64}, {S32, S64});
50 
51  getActionDefinitionsBuilder({G_SITOFP, G_UITOFP})
52  .legalForCartesianProduct({S32, S64}, {S64});
53 
54  getActionDefinitionsBuilder({G_LOAD, G_STORE})
55  .legalForTypesWithMemDesc({{S64, P0, S64, 8}, {S32, P0, S32, 4}});
56 
57  getLegacyLegalizerInfo().computeTables();
58 }
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
llvm::LLT::scalar
static constexpr LLT scalar(unsigned SizeInBits)
Get a low-level scalar or aggregate "bag of bits".
Definition: LowLevelTypeImpl.h:42
llvm::PPCSubtarget
Definition: PPCSubtarget.h:71
llvm::PPCLegalizerInfo::PPCLegalizerInfo
PPCLegalizerInfo(const PPCSubtarget &ST)
Definition: PPCLegalizerInfo.cpp:20
llvm::ARM_MB::ST
@ ST
Definition: ARMBaseInfo.h:73
llvm::LLT::pointer
static constexpr LLT pointer(unsigned AddressSpace, unsigned SizeInBits)
Get a low-level pointer in the given address space.
Definition: LowLevelTypeImpl.h:49
PPCLegalizerInfo.h
Debug.h
llvm::LLT
Definition: LowLevelTypeImpl.h:39