/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/CodeGen/CostTable.h
Line | Count | Source |
1 | | //===-- CostTable.h - Instruction Cost Table handling -----------*- 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 | | /// \file |
10 | | /// Cost tables and simple lookup functions |
11 | | /// |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #ifndef LLVM_CODEGEN_COSTTABLE_H_ |
15 | | #define LLVM_CODEGEN_COSTTABLE_H_ |
16 | | |
17 | | #include "llvm/ADT/ArrayRef.h" |
18 | | #include "llvm/ADT/STLExtras.h" |
19 | | #include "llvm/Support/MachineValueType.h" |
20 | | |
21 | | namespace llvm { |
22 | | |
23 | | /// Cost Table Entry |
24 | | struct CostTblEntry { |
25 | | int ISD; |
26 | | MVT::SimpleValueType Type; |
27 | | unsigned Cost; |
28 | | }; |
29 | | |
30 | | /// Find in cost table, TypeTy must be comparable to CompareTy by == |
31 | | inline const CostTblEntry *CostTableLookup(ArrayRef<CostTblEntry> Tbl, |
32 | 980k | int ISD, MVT Ty) { |
33 | 15.0M | auto I = find_if(Tbl, [=](const CostTblEntry &Entry) { |
34 | 15.0M | return ISD == Entry.ISD && Ty == Entry.Type1.65M ; |
35 | 15.0M | }); |
36 | 980k | if (I != Tbl.end()) |
37 | 226k | return I; |
38 | 753k | |
39 | 753k | // Could not find an entry. |
40 | 753k | return nullptr; |
41 | 753k | } |
42 | | |
43 | | /// Type Conversion Cost Table |
44 | | struct TypeConversionCostTblEntry { |
45 | | int ISD; |
46 | | MVT::SimpleValueType Dst; |
47 | | MVT::SimpleValueType Src; |
48 | | unsigned Cost; |
49 | | }; |
50 | | |
51 | | /// Find in type conversion cost table, TypeTy must be comparable to CompareTy |
52 | | /// by == |
53 | | inline const TypeConversionCostTblEntry * |
54 | | ConvertCostTableLookup(ArrayRef<TypeConversionCostTblEntry> Tbl, |
55 | 210k | int ISD, MVT Dst, MVT Src) { |
56 | 10.3M | auto I = find_if(Tbl, [=](const TypeConversionCostTblEntry &Entry) { |
57 | 10.3M | return ISD == Entry.ISD && Src == Entry.Src1.19M && Dst == Entry.Dst47.1k ; |
58 | 10.3M | }); |
59 | 210k | if (I != Tbl.end()) |
60 | 30.9k | return I; |
61 | 179k | |
62 | 179k | // Could not find an entry. |
63 | 179k | return nullptr; |
64 | 179k | } |
65 | | |
66 | | } // namespace llvm |
67 | | |
68 | | #endif /* LLVM_CODEGEN_COSTTABLE_H_ */ |