1*81ad6265SDimitry Andric //===-- CSKYAttributeParser.cpp - CSKY Attribute Parser -----------------===//
2*81ad6265SDimitry Andric //
3*81ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*81ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5*81ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*81ad6265SDimitry Andric //
7*81ad6265SDimitry Andric //===----------------------------------------------------------------------===//
8*81ad6265SDimitry Andric 
9*81ad6265SDimitry Andric #include "llvm/Support/CSKYAttributeParser.h"
10*81ad6265SDimitry Andric #include "llvm/ADT/StringExtras.h"
11*81ad6265SDimitry Andric #include "llvm/Support/Errc.h"
12*81ad6265SDimitry Andric 
13*81ad6265SDimitry Andric using namespace llvm;
14*81ad6265SDimitry Andric 
15*81ad6265SDimitry Andric const CSKYAttributeParser::DisplayHandler
16*81ad6265SDimitry Andric     CSKYAttributeParser::displayRoutines[] = {
17*81ad6265SDimitry Andric         {
18*81ad6265SDimitry Andric             CSKYAttrs::CSKY_ARCH_NAME,
19*81ad6265SDimitry Andric             &ELFAttributeParser::stringAttribute,
20*81ad6265SDimitry Andric         },
21*81ad6265SDimitry Andric         {
22*81ad6265SDimitry Andric             CSKYAttrs::CSKY_CPU_NAME,
23*81ad6265SDimitry Andric             &ELFAttributeParser::stringAttribute,
24*81ad6265SDimitry Andric         },
25*81ad6265SDimitry Andric         {
26*81ad6265SDimitry Andric             CSKYAttrs::CSKY_ISA_FLAGS,
27*81ad6265SDimitry Andric             &ELFAttributeParser::integerAttribute,
28*81ad6265SDimitry Andric         },
29*81ad6265SDimitry Andric         {
30*81ad6265SDimitry Andric             CSKYAttrs::CSKY_ISA_EXT_FLAGS,
31*81ad6265SDimitry Andric             &ELFAttributeParser::integerAttribute,
32*81ad6265SDimitry Andric         },
33*81ad6265SDimitry Andric         {
34*81ad6265SDimitry Andric             CSKYAttrs::CSKY_DSP_VERSION,
35*81ad6265SDimitry Andric             &CSKYAttributeParser::dspVersion,
36*81ad6265SDimitry Andric         },
37*81ad6265SDimitry Andric         {
38*81ad6265SDimitry Andric             CSKYAttrs::CSKY_VDSP_VERSION,
39*81ad6265SDimitry Andric             &CSKYAttributeParser::vdspVersion,
40*81ad6265SDimitry Andric         },
41*81ad6265SDimitry Andric         {
42*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_VERSION,
43*81ad6265SDimitry Andric             &CSKYAttributeParser::fpuVersion,
44*81ad6265SDimitry Andric         },
45*81ad6265SDimitry Andric         {
46*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_ABI,
47*81ad6265SDimitry Andric             &CSKYAttributeParser::fpuABI,
48*81ad6265SDimitry Andric         },
49*81ad6265SDimitry Andric         {
50*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_ROUNDING,
51*81ad6265SDimitry Andric             &CSKYAttributeParser::fpuRounding,
52*81ad6265SDimitry Andric         },
53*81ad6265SDimitry Andric         {
54*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_DENORMAL,
55*81ad6265SDimitry Andric             &CSKYAttributeParser::fpuDenormal,
56*81ad6265SDimitry Andric         },
57*81ad6265SDimitry Andric         {
58*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_EXCEPTION,
59*81ad6265SDimitry Andric             &CSKYAttributeParser::fpuException,
60*81ad6265SDimitry Andric         },
61*81ad6265SDimitry Andric         {
62*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_NUMBER_MODULE,
63*81ad6265SDimitry Andric             &ELFAttributeParser::stringAttribute,
64*81ad6265SDimitry Andric         },
65*81ad6265SDimitry Andric         {
66*81ad6265SDimitry Andric             CSKYAttrs::CSKY_FPU_HARDFP,
67*81ad6265SDimitry Andric             &CSKYAttributeParser::fpuHardFP,
68*81ad6265SDimitry Andric         }};
69*81ad6265SDimitry Andric 
70*81ad6265SDimitry Andric Error CSKYAttributeParser::handler(uint64_t tag, bool &handled) {
71*81ad6265SDimitry Andric   handled = false;
72*81ad6265SDimitry Andric   for (unsigned AHI = 0, AHE = array_lengthof(displayRoutines); AHI != AHE;
73*81ad6265SDimitry Andric        ++AHI) {
74*81ad6265SDimitry Andric     if (uint64_t(displayRoutines[AHI].attribute) == tag) {
75*81ad6265SDimitry Andric       if (Error e = (this->*displayRoutines[AHI].routine)(tag))
76*81ad6265SDimitry Andric         return e;
77*81ad6265SDimitry Andric       handled = true;
78*81ad6265SDimitry Andric       break;
79*81ad6265SDimitry Andric     }
80*81ad6265SDimitry Andric   }
81*81ad6265SDimitry Andric 
82*81ad6265SDimitry Andric   return Error::success();
83*81ad6265SDimitry Andric }
84*81ad6265SDimitry Andric 
85*81ad6265SDimitry Andric Error CSKYAttributeParser::dspVersion(unsigned tag) {
86*81ad6265SDimitry Andric   static const char *strings[] = {"Error", "DSP Extension", "DSP 2.0"};
87*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_DSP_VERSION", tag,
88*81ad6265SDimitry Andric                               makeArrayRef(strings));
89*81ad6265SDimitry Andric }
90*81ad6265SDimitry Andric 
91*81ad6265SDimitry Andric Error CSKYAttributeParser::vdspVersion(unsigned tag) {
92*81ad6265SDimitry Andric   static const char *strings[] = {"Error", "VDSP Version 1", "VDSP Version 2"};
93*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_VDSP_VERSION", tag,
94*81ad6265SDimitry Andric                               makeArrayRef(strings));
95*81ad6265SDimitry Andric }
96*81ad6265SDimitry Andric 
97*81ad6265SDimitry Andric Error CSKYAttributeParser::fpuVersion(unsigned tag) {
98*81ad6265SDimitry Andric   static const char *strings[] = {"Error", "FPU Version 1", "FPU Version 2",
99*81ad6265SDimitry Andric                                   "FPU Version 3"};
100*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_FPU_VERSION", tag,
101*81ad6265SDimitry Andric                               makeArrayRef(strings));
102*81ad6265SDimitry Andric }
103*81ad6265SDimitry Andric 
104*81ad6265SDimitry Andric Error CSKYAttributeParser::fpuABI(unsigned tag) {
105*81ad6265SDimitry Andric   static const char *strings[] = {"Error", "Soft", "SoftFP", "Hard"};
106*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_FPU_ABI", tag, makeArrayRef(strings));
107*81ad6265SDimitry Andric }
108*81ad6265SDimitry Andric 
109*81ad6265SDimitry Andric Error CSKYAttributeParser::fpuRounding(unsigned tag) {
110*81ad6265SDimitry Andric   static const char *strings[] = {"None", "Needed"};
111*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_FPU_ROUNDING", tag,
112*81ad6265SDimitry Andric                               makeArrayRef(strings));
113*81ad6265SDimitry Andric }
114*81ad6265SDimitry Andric 
115*81ad6265SDimitry Andric Error CSKYAttributeParser::fpuDenormal(unsigned tag) {
116*81ad6265SDimitry Andric   static const char *strings[] = {"None", "Needed"};
117*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_FPU_DENORMAL", tag,
118*81ad6265SDimitry Andric                               makeArrayRef(strings));
119*81ad6265SDimitry Andric }
120*81ad6265SDimitry Andric 
121*81ad6265SDimitry Andric Error CSKYAttributeParser::fpuException(unsigned tag) {
122*81ad6265SDimitry Andric   static const char *strings[] = {"None", "Needed"};
123*81ad6265SDimitry Andric   return parseStringAttribute("Tag_CSKY_FPU_EXCEPTION", tag,
124*81ad6265SDimitry Andric                               makeArrayRef(strings));
125*81ad6265SDimitry Andric }
126*81ad6265SDimitry Andric 
127*81ad6265SDimitry Andric Error CSKYAttributeParser::fpuHardFP(unsigned tag) {
128*81ad6265SDimitry Andric   uint64_t value = de.getULEB128(cursor);
129*81ad6265SDimitry Andric   ListSeparator LS(" ");
130*81ad6265SDimitry Andric 
131*81ad6265SDimitry Andric   std::string description;
132*81ad6265SDimitry Andric 
133*81ad6265SDimitry Andric   if (value & 0x1) {
134*81ad6265SDimitry Andric     description += LS;
135*81ad6265SDimitry Andric     description += "Half";
136*81ad6265SDimitry Andric   }
137*81ad6265SDimitry Andric   if ((value >> 1) & 0x1) {
138*81ad6265SDimitry Andric     description += LS;
139*81ad6265SDimitry Andric     description += "Single";
140*81ad6265SDimitry Andric   }
141*81ad6265SDimitry Andric   if ((value >> 2) & 0x1) {
142*81ad6265SDimitry Andric     description += LS;
143*81ad6265SDimitry Andric     description += "Double";
144*81ad6265SDimitry Andric   }
145*81ad6265SDimitry Andric 
146*81ad6265SDimitry Andric   if (description.empty()) {
147*81ad6265SDimitry Andric     printAttribute(tag, value, "");
148*81ad6265SDimitry Andric     return createStringError(errc::invalid_argument,
149*81ad6265SDimitry Andric                              "unknown Tag_CSKY_FPU_HARDFP value: " +
150*81ad6265SDimitry Andric                                  Twine(value));
151*81ad6265SDimitry Andric   }
152*81ad6265SDimitry Andric 
153*81ad6265SDimitry Andric   printAttribute(tag, value, description);
154*81ad6265SDimitry Andric   return Error::success();
155*81ad6265SDimitry Andric }
156