LLVM: lib/Target/MSP430/MSP430Subtarget.cpp Source File (original) (raw)
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17using namespace llvm;
18
19#define DEBUG_TYPE "msp430-subtarget"
20
23 cl::desc("Hardware multiplier use mode for MSP430"),
27 "Do not use hardware multiplier"),
29 "Use 16-bit hardware multiplier"),
31 "Use 32-bit hardware multiplier"),
33 "Use F5 series hardware multiplier")));
34
35#define GET_SUBTARGETINFO_TARGET_DESC
36#define GET_SUBTARGETINFO_CTOR
37#include "MSP430GenSubtargetInfo.inc"
38
39void MSP430Subtarget::anchor() { }
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43 ExtendedInsts = false;
45
47 if (CPUName.empty())
48 CPUName = "msp430";
49
51
54
55 return *this;
56}
57
62 FrameLowering(*this) {
63 TSInfo = std::make_unique();
64}
65
67
69 return TSInfo.get();
70}
71
74 const struct {
75 const RTLIB::Libcall Op;
76 const RTLIB::LibcallImpl Impl;
77 } LibraryCalls[] = {
78
79 {RTLIB::MUL_I16, RTLIB::impl___mspabi_mpyi_hw},
80 {RTLIB::MUL_I32, RTLIB::impl___mspabi_mpyl_hw},
81 {RTLIB::MUL_I64, RTLIB::impl___mspabi_mpyll_hw},
82
83
84 };
85 for (const auto &LC : LibraryCalls) {
86 Info.setLibcallImpl(LC.Op, LC.Impl);
87 }
89 const struct {
90 const RTLIB::Libcall Op;
91 const RTLIB::LibcallImpl Impl;
92 } LibraryCalls[] = {
93
94 {RTLIB::MUL_I16, RTLIB::impl___mspabi_mpyi_hw},
95 {RTLIB::MUL_I32, RTLIB::impl___mspabi_mpyl_hw32},
96 {RTLIB::MUL_I64, RTLIB::impl___mspabi_mpyll_hw32},
97
98
99 };
100 for (const auto &LC : LibraryCalls) {
101 Info.setLibcallImpl(LC.Op, LC.Impl);
102 }
104 const struct {
105 const RTLIB::Libcall Op;
106 const RTLIB::LibcallImpl Impl;
107 } LibraryCalls[] = {
108
109 {RTLIB::MUL_I16, RTLIB::impl___mspabi_mpyi_f5hw},
110 {RTLIB::MUL_I32, RTLIB::impl___mspabi_mpyl_f5hw},
111 {RTLIB::MUL_I64, RTLIB::impl___mspabi_mpyll_f5hw},
112
113
114 };
115 for (const auto &LC : LibraryCalls) {
116 Info.setLibcallImpl(LC.Op, LC.Impl);
117 }
118 } else {
119 const struct {
120 const RTLIB::Libcall Op;
121 const RTLIB::LibcallImpl Impl;
122 } LibraryCalls[] = {
123
124 {RTLIB::MUL_I16, RTLIB::impl___mspabi_mpyi},
125 {RTLIB::MUL_I32, RTLIB::impl___mspabi_mpyl},
126 {RTLIB::MUL_I64, RTLIB::impl___mspabi_mpyll},
127
128
129 };
130 for (const auto &LC : LibraryCalls) {
131 Info.setLibcallImpl(LC.Op, LC.Impl);
132 }
133 }
134}
#define clEnumValN(ENUMVAL, FLAGNAME, DESC)
static cl::opt< MSP430Subtarget::HWMultEnum > HWMultModeOption("mhwmult", cl::Hidden, cl::desc("Hardware multiplier use mode for MSP430"), cl::init(MSP430Subtarget::NoHWMult), cl::values(clEnumValN(MSP430Subtarget::NoHWMult, "none", "Do not use hardware multiplier"), clEnumValN(MSP430Subtarget::HWMult16, "16bit", "Use 16-bit hardware multiplier"), clEnumValN(MSP430Subtarget::HWMult32, "32bit", "Use 32-bit hardware multiplier"), clEnumValN(MSP430Subtarget::HWMultF5, "f5series", "Use F5 series hardware multiplier")))
Tracks which library functions to use for a particular subtarget.
const SelectionDAGTargetInfo * getSelectionDAGInfo() const override
Definition MSP430Subtarget.cpp:68
~MSP430Subtarget() override
MSP430Subtarget & initializeSubtargetDependencies(StringRef CPU, StringRef FS)
Definition MSP430Subtarget.cpp:42
void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS)
ParseSubtargetFeatures - Parses features string setting specified subtarget options.
MSP430Subtarget(const Triple &TT, const std::string &CPU, const std::string &FS, const TargetMachine &TM)
This constructor initializes the data members to match that of the specified triple.
Definition MSP430Subtarget.cpp:58
void initLibcallLoweringInfo(LibcallLoweringInfo &Info) const override
Definition MSP430Subtarget.cpp:72
Targets can subclass this to parameterize the SelectionDAG lowering and instruction selection process...
StringRef - Represent a constant reference to a string, i.e.
constexpr bool empty() const
empty - Check if the string is empty.
Primary interface to the complete machine description for the target machine.
Triple - Helper class for working with autoconf configuration names.
ValuesClass values(OptsTy... Options)
Helper to build a ValuesClass by forwarding a variable number of arguments as an initializer list to ...
initializer< Ty > init(const Ty &Val)
This is an optimization pass for GlobalISel generic memory operations.
DWARFExpression::Operation Op