source: src/BasicTypes-gen.cc@ 17a0228a

ADT arm-eh ast-experimental cleanup-dtors enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 17a0228a was 1c9568f0, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago

choose integral zero over nullptr for any integral context
  • Property mode set to 100644
File size: 17.7 KB
Line 
1#include <algorithm>
2#include <queue>
3#include <iostream>
4#include <iomanip>
5#include <fstream>
6#include <utility>
7#include <string>
8using namespace std;
9#include <assert.h>
10#include <string.h> // strlen
11#include "config.h" // configure info
12
13enum Kind {
14 Bool,
15 Char,
16 SignedChar,
17 UnsignedChar,
18 ShortSignedInt,
19 ShortUnsignedInt,
20 SignedInt,
21 UnsignedInt,
22 LongSignedInt,
23 LongUnsignedInt,
24 LongLongSignedInt,
25 LongLongUnsignedInt,
26 SignedInt128,
27 UnsignedInt128,
28 uFloat16,
29 uFloat16Complex,
30 uFloat32,
31 uFloat32Complex,
32 Float,
33 FloatComplex,
34 // FloatImaginary,
35 uFloat32x,
36 uFloat32xComplex,
37 uFloat64,
38 uFloat64Complex,
39 Double,
40 DoubleComplex,
41 // DoubleImaginary,
42 uFloat64x,
43 uFloat64xComplex,
44 uuFloat80,
45 uFloat128,
46 uFloat128Complex,
47 uuFloat128,
48 LongDouble,
49 LongDoubleComplex,
50 // LongDoubleImaginary,
51 uFloat128x,
52 uFloat128xComplex,
53 NUMBER_OF_BASIC_TYPES
54};
55
56enum NumSort { // floating point types act as both signed and unsigned
57 Signed = 0x1,
58 Unsigned = 0x2,
59 Floating = 0x3
60};
61
62struct Node {
63 Kind basicType; // basic type
64 const char * name; // basic-type name
65 const char * abbrev; // internal abbreviation (documentation only)
66 const char * type; // actual type name
67 const char * mangled; // mangled abbreviation
68 NumSort sign; // is this a signed integral type?
69 int left, middle, right; // 3-ary tree, -1 => nullptr
70 int rank; // integral rank (C standard 6.3.1.1.1, extended)
71} graph[NUMBER_OF_BASIC_TYPES] = {
72 { Bool, "Bool", "B", "_Bool", "b", Signed, Char, SignedChar, -1, 0 }, // root
73
74 { Char, "Char", "C", "char", "c", Signed, SignedChar, UnsignedChar, ShortSignedInt, 1 },
75 { SignedChar, "SignedChar", "SC", "signed char", "a", Signed, UnsignedChar, ShortSignedInt, -1, 1 },
76 { UnsignedChar, "UnsignedChar", "UC", "unsigned char", "h", Unsigned, ShortUnsignedInt, ShortSignedInt, -1, 1 },
77
78 { ShortSignedInt, "ShortSignedInt", "SI", "signed short int", "s", Signed, ShortUnsignedInt, SignedInt, -1, 2 },
79 { ShortUnsignedInt, "ShortUnsignedInt", "SUI", "unsigned short int", "t", Unsigned, UnsignedInt, SignedInt, -1, 2 },
80
81 { SignedInt, "SignedInt", "I", "signed int", "i", Signed, UnsignedInt, LongSignedInt, -1, 3 },
82 { UnsignedInt, "UnsignedInt", "UI", "unsigned int", "j", Unsigned, LongUnsignedInt, LongSignedInt, -1, 3 },
83
84 { LongSignedInt, "LongSignedInt", "LI", "signed long int", "l", Signed, LongUnsignedInt, LongLongSignedInt, -1, 4 },
85 { LongUnsignedInt, "LongUnsignedInt", "LUI", "unsigned long int", "m", Unsigned, LongLongSignedInt, LongLongUnsignedInt, -1, 4 },
86
87 { LongLongSignedInt, "LongLongSignedInt", "LLI", "signed long long int", "x", Signed, LongLongUnsignedInt, SignedInt128, -1, 5 },
88 { LongLongUnsignedInt, "LongLongUnsignedInt", "LLUI", "unsigned long long int", "y", Unsigned, SignedInt128, UnsignedInt128, -1, 5 },
89
90 { SignedInt128, "SignedInt128", "IB", "__int128", "n", Signed, UnsignedInt128, uFloat16, -1, 6 },
91 { UnsignedInt128, "UnsignedInt128", "UIB", "unsigned __int128", "o", Unsigned, uFloat16, -1, -1, 6 },
92
93 { uFloat16, "uFloat16", "_FH", "_Float16", "DF16_", Floating, uFloat32, uFloat16Complex, -1, 7 },
94 { uFloat16Complex, "uFloat16Complex", "_FH", "_Float16 _Complex", "CDF16_", Floating, uFloat32Complex, -1, -1, 7 },
95 { uFloat32, "uFloat32", "_F", "_Float32", "DF32_", Floating, Float, uFloat32Complex, -1, 8 },
96 { uFloat32Complex, "uFloat32Complex", "_FC", "_Float32 _Complex", "CDF32_", Floating, FloatComplex, -1, -1, 8 },
97 { Float, "Float", "F", "float", "f", Floating, uFloat32x, FloatComplex, -1, 9 },
98 { FloatComplex, "FloatComplex", "FC", "float _Complex", "Cf", Floating, uFloat32xComplex, -1, -1, 9 },
99 // { FloatImaginary, "FloatImaginary", "FI", "float _Imaginary", "If", false, DoubleImaginary, FloatComplex, -1, 9 },
100
101 { uFloat32x, "uFloat32x", "_FX", "_Float32x", "DF32x_", Floating, uFloat64, uFloat32xComplex, -1, 10 },
102 { uFloat32xComplex, "uFloat32xComplex", "_FXC", "_Float32x _Complex", "CDF32x_", Floating, uFloat64Complex, -1, -1, 10 },
103 { uFloat64, "uFloat64", "FD", "_Float64", "DF64_", Floating, Double, uFloat64Complex, -1, 11 },
104 { uFloat64Complex, "uFloat64Complex", "_FDC", "_Float64 _Complex", "CDF64_", Floating, DoubleComplex, -1, -1, 11 },
105 { Double, "Double", "D", "double", "d", Floating, uFloat64x, DoubleComplex, -1, 12 },
106 { DoubleComplex, "DoubleComplex", "DC", "double _Complex", "Cd", Floating, uFloat64xComplex, -1, -1, 12 },
107 // { DoubleImaginary, "DoubleImaginary", "DI", "double _Imaginary", "Id", false, LongDoubleImaginary, DoubleComplex, -1, 12 },
108
109 { uFloat64x, "uFloat64x", "F80X", "_Float64x", "DF64x_", Floating, uuFloat80, uFloat64xComplex, -1, 13 },
110 { uFloat64xComplex, "uFloat64xComplex", "_FDXC", "_Float64x _Complex", "CDF64x_", Floating, uFloat128Complex, -1, -1, 13 },
111 { uuFloat80, "uuFloat80", "F80", "__float80", "Dq", Floating, uFloat128, uFloat64xComplex, -1, 14 },
112 { uFloat128, "uFloat128", "_FB", "_Float128", "DF128_", Floating, uuFloat128, uFloat128Complex, -1, 15 },
113 { uFloat128Complex, "uFloat128Complex", "_FLDC", "_Float128 _Complex", "CDF128_", Floating, LongDoubleComplex, -1, -1, 15 },
114 { uuFloat128, "uuFloat128", "FB", "__float128", "g", Floating, LongDouble, uFloat128Complex, -1, 16 },
115 { LongDouble, "LongDouble", "LD", "long double", "e", Floating, uFloat128x, LongDoubleComplex, -1, 17 },
116 { LongDoubleComplex, "LongDoubleComplex", "LDC", "long double _Complex", "Ce", Floating, uFloat128xComplex, -1, -1, 17 },
117 // { LongDoubleImaginary, "LongDoubleImaginary", "LDI", "long double _Imaginary", "Ie", false, LongDoubleComplex, -1, -1, 17 },
118
119 { uFloat128x, "uFloat128x", "_FBX", "_Float128x", "DF128x_", Floating, uFloat128xComplex, -1, -1, 18 },
120 { uFloat128xComplex, "uFloat128xComplex", "_FLDXC", "_Float128x _Complex", "CDF128x_", Floating, -1, -1, -1, 18 }
121}; // graph
122
123static int costMatrix[NUMBER_OF_BASIC_TYPES][NUMBER_OF_BASIC_TYPES];
124static int signMatrix[NUMBER_OF_BASIC_TYPES][NUMBER_OF_BASIC_TYPES];
125static Kind commonTypeMatrix[NUMBER_OF_BASIC_TYPES][NUMBER_OF_BASIC_TYPES];
126
127void generateCosts( int row ) {
128 bool seen[NUMBER_OF_BASIC_TYPES] = { false /*, ... */ };
129
130 struct el_cost {
131 int i;
132 int path;
133 int sign;
134
135 el_cost( int i = 0, int p = 0, int s = 0 ) : i(i), path(p), sign(s) {}
136
137 // reverse the sense for use in largest-on-top priority queue
138 bool operator< (const el_cost& o) const {
139 return path > o.path || (path == o.path && sign > o.sign);
140 }
141 };
142
143 // initialize BFS queue with root of traversal
144 priority_queue< el_cost > q;
145 q.emplace( row, 0, 0 );
146
147 // BFS costs
148 do {
149 // visit cost element
150 int col = q.top().i;
151 // skip if already set
152 if ( seen[col] ) {
153 q.pop();
154 continue;
155 } else {
156 seen[col] = true;
157 } // if
158
159 // otherwise set min-costs into matrix
160 int cost = q.top().path;
161 int scost = q.top().sign;
162 costMatrix[row][col] = cost;
163 signMatrix[row][col] = scost;
164 q.pop();
165
166 // traverse children
167 int i = graph[col].left;
168 if ( i == -1 ) continue;
169 q.emplace( i, cost + 1, scost + ! (graph[col].sign & graph[i].sign) );
170
171 i = graph[col].middle;
172 if ( i == -1 ) continue;
173 q.emplace( i, cost + 1, scost + !(graph[col].sign & graph[i].sign) );
174
175 i = graph[col].right;
176 if ( i == -1 ) continue;
177 q.emplace( i, cost + 1, scost + !(graph[col].sign & graph[i].sign) );
178 } while ( ! q.empty() );
179} // generateCosts
180
181void generateCommonType( int row, int col ) { // row <= col
182 if ( costMatrix[row][col] >= 0 ) {
183 // safe conversion from row => col
184 commonTypeMatrix[row][col] = commonTypeMatrix[col][row] = graph[col].basicType;
185 } else if ( costMatrix[col][row] >= 0 ) {
186 // safe conversion from col => row
187 commonTypeMatrix[row][col] = commonTypeMatrix[col][row] = graph[row].basicType;
188 } else {
189 // need to find least common ancestor
190 // can cheat a bit here, in that there is always a direct ancestor of the later (col) element
191 int i = graph[col].left;
192 if ( i == -1 ) assert("invalid ancestor assumption");
193 if ( costMatrix[row][i] >= 0 ) {
194 commonTypeMatrix[row][col] = commonTypeMatrix[col][row] = graph[i].basicType;
195 return;
196 } // if
197
198 i = graph[col].middle;
199 if ( i == -1 ) assert("invalid ancestor assumption");
200 if ( costMatrix[row][i] >= 0 ) {
201 commonTypeMatrix[row][col] = commonTypeMatrix[col][row] = graph[i].basicType;
202 return;
203 } // if
204
205 i = graph[col].right;
206 if ( i == -1 ) assert("invalid ancestor assumption");
207 if ( costMatrix[row][i] >= 0 ) {
208 commonTypeMatrix[row][col] = commonTypeMatrix[col][row] = graph[i].basicType;
209 return;
210 } // if
211
212 assert("invalid ancestor assumption");
213 } // if
214} // generateCommonType
215
216void resetInput( fstream & file, const char * filename, stringstream & buffer, stringstream & code, string & str ) {
217 file.close();
218 buffer.str( "" );
219 code.str( "" );
220 file.open( filename, fstream::in );
221 if ( file.fail() ) {
222 cout << "Internal error, could not open " << filename << " for input." << endl;
223 abort();
224 } // if
225 buffer << file.rdbuf();
226 str = buffer.str();
227} // resetInput
228
229void output( fstream & file, const char * filename, stringstream & code ) {
230 file.close();
231 file.open( filename, fstream::out );
232 if ( file.fail() ) {
233 cout << "Internal error, could not open " << filename << " for output." << endl;
234 abort();
235 } // if
236 file << code.rdbuf(); // overwrite file
237} // output
238
239void Abort( const char * kind, const char * file ) {
240 cerr << "Internal error, could not find " << kind << " of generated code for " << file << endl;
241} // Abort
242
243int main() {
244 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // initialization
245 for ( int c = 0; c < NUMBER_OF_BASIC_TYPES; c += 1 ) {
246 costMatrix[r][c] = -1;
247 signMatrix[r][c] = -1;
248 commonTypeMatrix[r][c] = NUMBER_OF_BASIC_TYPES;
249 } // for
250 } // for
251
252 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // perform breath-first traversal to generate cost graph
253 generateCosts(r);
254 } // for
255
256 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // use cost graph to find nearest-common-ancestor
257 for (int c = r; c < NUMBER_OF_BASIC_TYPES; c += 1 ) {
258 generateCommonType(r, c);
259 } // for
260 } // for
261
262 #define STARTMK "// GENERATED START, DO NOT EDIT"
263 #define ENDMK "// GENERATED END"
264 string BYMK( __FILE__ );
265 string::size_type posn = BYMK.find_last_of( "/" );
266 if ( posn != string::npos ) BYMK.erase( 0, posn - 1); // remove directories
267 BYMK = "// GENERATED BY " + BYMK;
268
269 fstream file;
270 stringstream buffer, code;
271 string str;
272 size_t start, end;
273
274
275 #define Type TOP_SRCDIR "src/SynTree/Type.h"
276 resetInput( file, Type, buffer, code, str );
277
278 if ( (start = str.find( STARTMK )) == string::npos ) Abort( "start", Type );
279 start += sizeof( STARTMK ); // includes newline
280 code << str.substr( 0, start );
281
282 code << "\t" << BYMK << endl;
283 code << "\tenum Kind {" << endl;
284 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) {
285 code << "\t\t" << graph[r].name << "," << endl;
286 } // for
287 code << "\t\tNUMBER_OF_BASIC_TYPES" << endl;
288 code << "\t} kind;" << endl;
289 code << "\t"; // indentation for end marker
290
291 if ( (start = str.find( ENDMK, start + 1 )) == string::npos ) Abort( "end", Type );
292 code << str.substr( start );
293
294 output( file, Type, code );
295 // cout << code.str();
296
297
298 #define ConversionCost TOP_SRCDIR "src/ResolvExpr/ConversionCost.cc"
299 resetInput( file, ConversionCost, buffer, code, str );
300
301 if ( (start = str.find( STARTMK )) == string::npos ) Abort( "start", ConversionCost );
302 start += sizeof( STARTMK ); // includes newline
303 code << str.substr( 0, start );
304
305 code << "\t" << BYMK << endl;
306 code << "\t/* EXTENDED INTEGRAL RANK HIERARCHY (root to leaves)" << endl;
307 for ( int c = 0; c < NUMBER_OF_BASIC_TYPES; c += 1 ) {
308 code << '\t' << left;
309 if ( graph[c].rank != graph[c + 1].rank ) {
310 code << right << setw(30) << graph[c].type << left;
311 } else if ( graph[c].rank != graph[c + 2].rank ) {
312 code << string( 10, ' ' ) << setw(25) << graph[c].type << setw(25) << graph[c + 1].type;
313 c += 1;
314 } else {
315 code << setw(20) << graph[c].type << setw(20) << graph[c + 1].type << setw(20) << graph[c + 2].type;
316 c += 2;
317 } // if
318 code << endl;
319 } // for
320 code << right << "\t*/" << endl;
321 code << "\t"; // indentation for end marker
322
323 if ( (start = str.find( ENDMK, start + 1 )) == string::npos ) Abort( "end", ConversionCost );
324 if ( (end = str.find( STARTMK, start + 1 )) == string::npos ) Abort( "start", ConversionCost );
325 end += sizeof( STARTMK );
326 code << str.substr( start, end - start );
327
328 code << "\t" << BYMK << endl;
329 code << "\tstatic const int costMatrix[BasicType::NUMBER_OF_BASIC_TYPES][BasicType::NUMBER_OF_BASIC_TYPES] = { // path length from root to node" << endl
330 << "\t\t/* ";
331 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // titles
332 code << setw(5) << graph[r].abbrev;
333 } // for
334 code << " */" << endl;
335 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // costs
336 code << "\t\t/*" << setw(6) << graph[r].abbrev << "*/ {";
337 for ( int c = 0; c < NUMBER_OF_BASIC_TYPES; c += 1 ) {
338 code << setw(4) << costMatrix[r][c] << ",";
339 } // for
340 code << " }," << endl;
341 } // for
342 code << "\t}; // costMatrix" << endl;
343
344 // maximum conversion cost from int
345 code << "\tstatic const int maxIntCost = " << *max_element(costMatrix[SignedInt], costMatrix[SignedInt] + NUMBER_OF_BASIC_TYPES) << ";" << endl;
346 code << "\t"; // indentation for end marker
347
348 if ( (start = str.find( ENDMK, start + 1 )) == string::npos ) Abort( "end", ConversionCost );
349 if ( (end = str.find( STARTMK, start + 1 )) == string::npos ) Abort( "start", ConversionCost );
350 end += sizeof( STARTMK );
351 code << str.substr( start, end - start );
352
353 code << "\t" << BYMK << endl;
354 code << "\tstatic const int signMatrix[BasicType::NUMBER_OF_BASIC_TYPES][BasicType::NUMBER_OF_BASIC_TYPES] = { // number of sign changes in safe conversion" << endl
355 << "\t\t/* ";
356 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // titles
357 code << setw(5) << graph[r].abbrev;
358 } // for
359 code << " */" << endl;
360 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // costs
361 code << "\t\t/*" << setw(6) << graph[r].abbrev << "*/ {";
362 for ( int c = 0; c < NUMBER_OF_BASIC_TYPES; c += 1 ) {
363 code << setw(4) << signMatrix[r][c] << ",";
364 } // for
365 code << " }," << endl;
366 } // for
367 code << "\t}; // signMatrix" << endl;
368 code << "\t"; // indentation for end marker
369
370 if ( (start = str.find( ENDMK, start + 1 )) == string::npos ) Abort( "end", ConversionCost );
371 code << str.substr( start );
372
373 output( file, ConversionCost, code );
374 // cout << code.str();
375
376
377 #define CommonType TOP_SRCDIR "src/ResolvExpr/CommonType.cc"
378 resetInput( file, CommonType, buffer, code, str );
379
380 if ( (start = str.find( STARTMK )) == string::npos ) Abort( "start", CommonType );
381 start += sizeof( STARTMK ); // includes newline
382 code << str.substr( 0, start );
383
384 enum { PER_ROW = 6 };
385 code << "\t" << BYMK << endl;
386 code << "\t#define BT BasicType::" << endl;
387 code << "\tstatic const BasicType::Kind commonTypes[BasicType::NUMBER_OF_BASIC_TYPES][BasicType::NUMBER_OF_BASIC_TYPES] = { // nearest common ancestor" << endl
388 << "\t\t/*\t\t ";
389 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // titles
390 code << setw(24) << graph[r].abbrev;
391 if ( (r+1) % PER_ROW == 0 ) {
392 code << endl << "\t\t\t\t ";
393 } // if
394 } // for
395 code << "*/" << endl;
396 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) { // costs
397 code << "\t\t\t\t {\n\t\t/*" << setw(6) << graph[r].abbrev << "*/";
398 for ( int c = 0; c < NUMBER_OF_BASIC_TYPES; c += 1 ) {
399 string s = string{"BT "} + graph[commonTypeMatrix[r][c]].name;
400 code << setw(23) << s << ",";
401 if ( (c+1) % PER_ROW == 0 ) {
402 code << endl << "\t\t\t\t ";
403 } // if
404 } // for
405 code << "}," << endl;
406 } // for
407 code << "\t}; // commonTypes" << endl;
408 code << "\t#undef BT" << endl;
409 code << "\t"; // indentation for end marker
410
411 if ( (start = str.find( ENDMK, start + 1 )) == string::npos ) Abort( "end", CommonType );
412 code << str.substr( start );
413
414 output( file, CommonType, code );
415 // cout << code.str();
416
417
418 #define ManglerCommon TOP_SRCDIR "src/SymTab/ManglerCommon.cc"
419 resetInput( file, ManglerCommon, buffer, code, str );
420
421 if ( (start = str.find( STARTMK )) == string::npos ) Abort( "start", ManglerCommon );
422 start += sizeof( STARTMK ); // includes newline
423 code << str.substr( 0, start );
424
425 code << "\t\t\t// GENERATED BY " __FILE__ << endl;
426 code <<
427 "\t\t\t// NOTES ON MANGLING:\n"
428 "\t\t\t// * Itanium spec says that Float80 encodes to \"e\" (like LongDouble), but the distinct lengths cause resolution problems.\n"
429 "\t\t\t// * Float128 is supposed to encode to \"g\", but I wanted it to mangle equal to LongDouble.\n"
430 "\t\t\t// * Mangling for non-standard complex types is by best guess\n"
431 "\t\t\t// * _FloatN is supposed to encode as \"DF\"N\"_\"; modified for same reason as above.\n"
432 "\t\t\t// * unused mangling identifiers:\n"
433 "\t\t\t// - \"z\" ellipsis\n"
434 "\t\t\t// - \"Dd\" IEEE 754r 64-bit decimal floating point (borrowed for _Float32x)\n"
435 "\t\t\t// - \"De\" IEEE 754r 128-bit decimal floating point\n"
436 "\t\t\t// - \"Df\" IEEE 754r 32-bit decimal floating point\n"
437 "\t\t\t// - \"Dh\" IEEE 754r 16-bit decimal floating point (borrowed for _Float16)\n"
438 "\t\t\t// - \"DF\"N\"_\" ISO/IEC TS 18661 N-bit binary floating point (_FloatN)\n"
439 "\t\t\t// - \"Di\" char32_t\n"
440 "\t\t\t// - \"Ds\" char16_t\n";
441
442 code << "\t\t\tconst std::string basicTypes[BasicType::NUMBER_OF_BASIC_TYPES] = {" << endl;
443 for ( int r = 0; r < NUMBER_OF_BASIC_TYPES; r += 1 ) {
444 code << "\t\t\t\t\"" << graph[r].mangled << "\"," << setw(9 - strlen(graph[r].mangled)) << ' ' << "// " << graph[r].type << endl;
445 } // for
446 code << "\t\t\t}; // basicTypes" << endl;
447 code << "\t\t\t"; // indentation for end marker
448
449 if ( (start = str.find( ENDMK, start + 1 )) == string::npos ) Abort( "end", ManglerCommon );
450 code << str.substr( start );
451
452 output( file, ManglerCommon, code );
453 // cout << code.str();
454} // main
455
456// Local Variables: //
457// tab-width: 4 //
458// mode: c++ //
459// compile-command: "g++-8 -Wall -Wextra BasicTypes-gen.cc" //
460// End: //
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