1 /*===-- llvm-c/Core.h - Core Library C Interface ------------------*- C -*-===*\
2 |*                                                                            *|
3 |*                     The LLVM Compiler Infrastructure                       *|
4 |*                                                                            *|
5 |* This file is distributed under the University of Illinois Open Source      *|
6 |* License. See LICENSE.TXT for details.                                      *|
7 |*                                                                            *|
8 |*===----------------------------------------------------------------------===*|
9 |*                                                                            *|
10 |* This header declares the C interface to libLLVMCore.a, which implements    *|
11 |* the LLVM intermediate representation.                                      *|
12 |*                                                                            *|
13 \*===----------------------------------------------------------------------===*/
14 
15 #ifndef LLVM_C_CORE_H
16 #define LLVM_C_CORE_H
17 
18 #include "llvm-c/ErrorHandling.h"
19 #include "llvm-c/Types.h"
20 
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24 
25 /**
26  * @defgroup LLVMC LLVM-C: C interface to LLVM
27  *
28  * This module exposes parts of the LLVM library as a C API.
29  *
30  * @{
31  */
32 
33 /**
34  * @defgroup LLVMCTransforms Transforms
35  */
36 
37 /**
38  * @defgroup LLVMCCore Core
39  *
40  * This modules provide an interface to libLLVMCore, which implements
41  * the LLVM intermediate representation as well as other related types
42  * and utilities.
43  *
44  * Many exotic languages can interoperate with C code but have a harder time
45  * with C++ due to name mangling. So in addition to C, this interface enables
46  * tools written in such languages.
47  *
48  * @{
49  */
50 
51 /**
52  * @defgroup LLVMCCoreTypes Types and Enumerations
53  *
54  * @{
55  */
56 
57 typedef enum {
58     LLVMZExtAttribute       = 1<<0,
59     LLVMSExtAttribute       = 1<<1,
60     LLVMNoReturnAttribute   = 1<<2,
61     LLVMInRegAttribute      = 1<<3,
62     LLVMStructRetAttribute  = 1<<4,
63     LLVMNoUnwindAttribute   = 1<<5,
64     LLVMNoAliasAttribute    = 1<<6,
65     LLVMByValAttribute      = 1<<7,
66     LLVMNestAttribute       = 1<<8,
67     LLVMReadNoneAttribute   = 1<<9,
68     LLVMReadOnlyAttribute   = 1<<10,
69     LLVMNoInlineAttribute   = 1<<11,
70     LLVMAlwaysInlineAttribute    = 1<<12,
71     LLVMOptimizeForSizeAttribute = 1<<13,
72     LLVMStackProtectAttribute    = 1<<14,
73     LLVMStackProtectReqAttribute = 1<<15,
74     LLVMAlignment = 31<<16,
75     LLVMNoCaptureAttribute  = 1<<21,
76     LLVMNoRedZoneAttribute  = 1<<22,
77     LLVMNoImplicitFloatAttribute = 1<<23,
78     LLVMNakedAttribute      = 1<<24,
79     LLVMInlineHintAttribute = 1<<25,
80     LLVMStackAlignment = 7<<26,
81     LLVMReturnsTwice = 1 << 29,
82     LLVMUWTable = 1 << 30,
83     LLVMNonLazyBind = 1 << 31
84 
85     /* FIXME: These attributes are currently not included in the C API as
86        a temporary measure until the API/ABI impact to the C API is understood
87        and the path forward agreed upon.
88     LLVMSanitizeAddressAttribute = 1ULL << 32,
89     LLVMStackProtectStrongAttribute = 1ULL<<35,
90     LLVMColdAttribute = 1ULL << 40,
91     LLVMOptimizeNoneAttribute = 1ULL << 42,
92     LLVMInAllocaAttribute = 1ULL << 43,
93     LLVMNonNullAttribute = 1ULL << 44,
94     LLVMJumpTableAttribute = 1ULL << 45,
95     LLVMConvergentAttribute = 1ULL << 46,
96     LLVMSafeStackAttribute = 1ULL << 47,
97     */
98 } LLVMAttribute;
99 
100 typedef enum {
101   /* Terminator Instructions */
102   LLVMRet            = 1,
103   LLVMBr             = 2,
104   LLVMSwitch         = 3,
105   LLVMIndirectBr     = 4,
106   LLVMInvoke         = 5,
107   /* removed 6 due to API changes */
108   LLVMUnreachable    = 7,
109 
110   /* Standard Binary Operators */
111   LLVMAdd            = 8,
112   LLVMFAdd           = 9,
113   LLVMSub            = 10,
114   LLVMFSub           = 11,
115   LLVMMul            = 12,
116   LLVMFMul           = 13,
117   LLVMUDiv           = 14,
118   LLVMSDiv           = 15,
119   LLVMFDiv           = 16,
120   LLVMURem           = 17,
121   LLVMSRem           = 18,
122   LLVMFRem           = 19,
123 
124   /* Logical Operators */
125   LLVMShl            = 20,
126   LLVMLShr           = 21,
127   LLVMAShr           = 22,
128   LLVMAnd            = 23,
129   LLVMOr             = 24,
130   LLVMXor            = 25,
131 
132   /* Memory Operators */
133   LLVMAlloca         = 26,
134   LLVMLoad           = 27,
135   LLVMStore          = 28,
136   LLVMGetElementPtr  = 29,
137 
138   /* Cast Operators */
139   LLVMTrunc          = 30,
140   LLVMZExt           = 31,
141   LLVMSExt           = 32,
142   LLVMFPToUI         = 33,
143   LLVMFPToSI         = 34,
144   LLVMUIToFP         = 35,
145   LLVMSIToFP         = 36,
146   LLVMFPTrunc        = 37,
147   LLVMFPExt          = 38,
148   LLVMPtrToInt       = 39,
149   LLVMIntToPtr       = 40,
150   LLVMBitCast        = 41,
151   LLVMAddrSpaceCast  = 60,
152 
153   /* Other Operators */
154   LLVMICmp           = 42,
155   LLVMFCmp           = 43,
156   LLVMPHI            = 44,
157   LLVMCall           = 45,
158   LLVMSelect         = 46,
159   LLVMUserOp1        = 47,
160   LLVMUserOp2        = 48,
161   LLVMVAArg          = 49,
162   LLVMExtractElement = 50,
163   LLVMInsertElement  = 51,
164   LLVMShuffleVector  = 52,
165   LLVMExtractValue   = 53,
166   LLVMInsertValue    = 54,
167 
168   /* Atomic operators */
169   LLVMFence          = 55,
170   LLVMAtomicCmpXchg  = 56,
171   LLVMAtomicRMW      = 57,
172 
173   /* Exception Handling Operators */
174   LLVMResume         = 58,
175   LLVMLandingPad     = 59,
176   LLVMCleanupRet     = 61,
177   LLVMCatchRet       = 62,
178   LLVMCatchPad       = 63,
179   LLVMCleanupPad     = 64,
180   LLVMCatchSwitch    = 65
181 } LLVMOpcode;
182 
183 typedef enum {
184   LLVMVoidTypeKind,        /**< type with no size */
185   LLVMHalfTypeKind,        /**< 16 bit floating point type */
186   LLVMFloatTypeKind,       /**< 32 bit floating point type */
187   LLVMDoubleTypeKind,      /**< 64 bit floating point type */
188   LLVMX86_FP80TypeKind,    /**< 80 bit floating point type (X87) */
189   LLVMFP128TypeKind,       /**< 128 bit floating point type (112-bit mantissa)*/
190   LLVMPPC_FP128TypeKind,   /**< 128 bit floating point type (two 64-bits) */
191   LLVMLabelTypeKind,       /**< Labels */
192   LLVMIntegerTypeKind,     /**< Arbitrary bit width integers */
193   LLVMFunctionTypeKind,    /**< Functions */
194   LLVMStructTypeKind,      /**< Structures */
195   LLVMArrayTypeKind,       /**< Arrays */
196   LLVMPointerTypeKind,     /**< Pointers */
197   LLVMVectorTypeKind,      /**< SIMD 'packed' format, or other vector type */
198   LLVMMetadataTypeKind,    /**< Metadata */
199   LLVMX86_MMXTypeKind,     /**< X86 MMX */
200   LLVMTokenTypeKind        /**< Tokens */
201 } LLVMTypeKind;
202 
203 typedef enum {
204   LLVMExternalLinkage,    /**< Externally visible function */
205   LLVMAvailableExternallyLinkage,
206   LLVMLinkOnceAnyLinkage, /**< Keep one copy of function when linking (inline)*/
207   LLVMLinkOnceODRLinkage, /**< Same, but only replaced by something
208                             equivalent. */
209   LLVMLinkOnceODRAutoHideLinkage, /**< Obsolete */
210   LLVMWeakAnyLinkage,     /**< Keep one copy of function when linking (weak) */
211   LLVMWeakODRLinkage,     /**< Same, but only replaced by something
212                             equivalent. */
213   LLVMAppendingLinkage,   /**< Special purpose, only applies to global arrays */
214   LLVMInternalLinkage,    /**< Rename collisions when linking (static
215                                functions) */
216   LLVMPrivateLinkage,     /**< Like Internal, but omit from symbol table */
217   LLVMDLLImportLinkage,   /**< Obsolete */
218   LLVMDLLExportLinkage,   /**< Obsolete */
219   LLVMExternalWeakLinkage,/**< ExternalWeak linkage description */
220   LLVMGhostLinkage,       /**< Obsolete */
221   LLVMCommonLinkage,      /**< Tentative definitions */
222   LLVMLinkerPrivateLinkage, /**< Like Private, but linker removes. */
223   LLVMLinkerPrivateWeakLinkage /**< Like LinkerPrivate, but is weak. */
224 } LLVMLinkage;
225 
226 typedef enum {
227   LLVMDefaultVisibility,  /**< The GV is visible */
228   LLVMHiddenVisibility,   /**< The GV is hidden */
229   LLVMProtectedVisibility /**< The GV is protected */
230 } LLVMVisibility;
231 
232 typedef enum {
233   LLVMDefaultStorageClass   = 0,
234   LLVMDLLImportStorageClass = 1, /**< Function to be imported from DLL. */
235   LLVMDLLExportStorageClass = 2  /**< Function to be accessible from DLL. */
236 } LLVMDLLStorageClass;
237 
238 typedef enum {
239   LLVMCCallConv           = 0,
240   LLVMFastCallConv        = 8,
241   LLVMColdCallConv        = 9,
242   LLVMWebKitJSCallConv    = 12,
243   LLVMAnyRegCallConv      = 13,
244   LLVMX86StdcallCallConv  = 64,
245   LLVMX86FastcallCallConv = 65
246 } LLVMCallConv;
247 
248 typedef enum {
249   LLVMIntEQ = 32, /**< equal */
250   LLVMIntNE,      /**< not equal */
251   LLVMIntUGT,     /**< unsigned greater than */
252   LLVMIntUGE,     /**< unsigned greater or equal */
253   LLVMIntULT,     /**< unsigned less than */
254   LLVMIntULE,     /**< unsigned less or equal */
255   LLVMIntSGT,     /**< signed greater than */
256   LLVMIntSGE,     /**< signed greater or equal */
257   LLVMIntSLT,     /**< signed less than */
258   LLVMIntSLE      /**< signed less or equal */
259 } LLVMIntPredicate;
260 
261 typedef enum {
262   LLVMRealPredicateFalse, /**< Always false (always folded) */
263   LLVMRealOEQ,            /**< True if ordered and equal */
264   LLVMRealOGT,            /**< True if ordered and greater than */
265   LLVMRealOGE,            /**< True if ordered and greater than or equal */
266   LLVMRealOLT,            /**< True if ordered and less than */
267   LLVMRealOLE,            /**< True if ordered and less than or equal */
268   LLVMRealONE,            /**< True if ordered and operands are unequal */
269   LLVMRealORD,            /**< True if ordered (no nans) */
270   LLVMRealUNO,            /**< True if unordered: isnan(X) | isnan(Y) */
271   LLVMRealUEQ,            /**< True if unordered or equal */
272   LLVMRealUGT,            /**< True if unordered or greater than */
273   LLVMRealUGE,            /**< True if unordered, greater than, or equal */
274   LLVMRealULT,            /**< True if unordered or less than */
275   LLVMRealULE,            /**< True if unordered, less than, or equal */
276   LLVMRealUNE,            /**< True if unordered or not equal */
277   LLVMRealPredicateTrue   /**< Always true (always folded) */
278 } LLVMRealPredicate;
279 
280 typedef enum {
281   LLVMLandingPadCatch,    /**< A catch clause   */
282   LLVMLandingPadFilter    /**< A filter clause  */
283 } LLVMLandingPadClauseTy;
284 
285 typedef enum {
286   LLVMNotThreadLocal = 0,
287   LLVMGeneralDynamicTLSModel,
288   LLVMLocalDynamicTLSModel,
289   LLVMInitialExecTLSModel,
290   LLVMLocalExecTLSModel
291 } LLVMThreadLocalMode;
292 
293 typedef enum {
294   LLVMAtomicOrderingNotAtomic = 0, /**< A load or store which is not atomic */
295   LLVMAtomicOrderingUnordered = 1, /**< Lowest level of atomicity, guarantees
296                                      somewhat sane results, lock free. */
297   LLVMAtomicOrderingMonotonic = 2, /**< guarantees that if you take all the
298                                      operations affecting a specific address,
299                                      a consistent ordering exists */
300   LLVMAtomicOrderingAcquire = 4, /**< Acquire provides a barrier of the sort
301                                    necessary to acquire a lock to access other
302                                    memory with normal loads and stores. */
303   LLVMAtomicOrderingRelease = 5, /**< Release is similar to Acquire, but with
304                                    a barrier of the sort necessary to release
305                                    a lock. */
306   LLVMAtomicOrderingAcquireRelease = 6, /**< provides both an Acquire and a
307                                           Release barrier (for fences and
308                                           operations which both read and write
309                                            memory). */
310   LLVMAtomicOrderingSequentiallyConsistent = 7 /**< provides Acquire semantics
311                                                  for loads and Release
312                                                  semantics for stores.
313                                                  Additionally, it guarantees
314                                                  that a total ordering exists
315                                                  between all
316                                                  SequentiallyConsistent
317                                                  operations. */
318 } LLVMAtomicOrdering;
319 
320 typedef enum {
321     LLVMAtomicRMWBinOpXchg, /**< Set the new value and return the one old */
322     LLVMAtomicRMWBinOpAdd, /**< Add a value and return the old one */
323     LLVMAtomicRMWBinOpSub, /**< Subtract a value and return the old one */
324     LLVMAtomicRMWBinOpAnd, /**< And a value and return the old one */
325     LLVMAtomicRMWBinOpNand, /**< Not-And a value and return the old one */
326     LLVMAtomicRMWBinOpOr, /**< OR a value and return the old one */
327     LLVMAtomicRMWBinOpXor, /**< Xor a value and return the old one */
328     LLVMAtomicRMWBinOpMax, /**< Sets the value if it's greater than the
329                              original using a signed comparison and return
330                              the old one */
331     LLVMAtomicRMWBinOpMin, /**< Sets the value if it's Smaller than the
332                              original using a signed comparison and return
333                              the old one */
334     LLVMAtomicRMWBinOpUMax, /**< Sets the value if it's greater than the
335                              original using an unsigned comparison and return
336                              the old one */
337     LLVMAtomicRMWBinOpUMin /**< Sets the value if it's greater than the
338                              original using an unsigned comparison  and return
339                              the old one */
340 } LLVMAtomicRMWBinOp;
341 
342 typedef enum {
343     LLVMDSError,
344     LLVMDSWarning,
345     LLVMDSRemark,
346     LLVMDSNote
347 } LLVMDiagnosticSeverity;
348 
349 /**
350  * @}
351  */
352 
353 void LLVMInitializeCore(LLVMPassRegistryRef R);
354 
355 /** Deallocate and destroy all ManagedStatic variables.
356     @see llvm::llvm_shutdown
357     @see ManagedStatic */
358 void LLVMShutdown(void);
359 
360 /*===-- Error handling ----------------------------------------------------===*/
361 
362 char *LLVMCreateMessage(const char *Message);
363 void LLVMDisposeMessage(char *Message);
364 
365 /**
366  * @defgroup LLVMCCoreContext Contexts
367  *
368  * Contexts are execution states for the core LLVM IR system.
369  *
370  * Most types are tied to a context instance. Multiple contexts can
371  * exist simultaneously. A single context is not thread safe. However,
372  * different contexts can execute on different threads simultaneously.
373  *
374  * @{
375  */
376 
377 typedef void (*LLVMDiagnosticHandler)(LLVMDiagnosticInfoRef, void *);
378 typedef void (*LLVMYieldCallback)(LLVMContextRef, void *);
379 
380 /**
381  * Create a new context.
382  *
383  * Every call to this function should be paired with a call to
384  * LLVMContextDispose() or the context will leak memory.
385  */
386 LLVMContextRef LLVMContextCreate(void);
387 
388 /**
389  * Obtain the global context instance.
390  */
391 LLVMContextRef LLVMGetGlobalContext(void);
392 
393 /**
394  * Set the diagnostic handler for this context.
395  */
396 void LLVMContextSetDiagnosticHandler(LLVMContextRef C,
397                                      LLVMDiagnosticHandler Handler,
398                                      void *DiagnosticContext);
399 
400 /**
401  * Set the yield callback function for this context.
402  *
403  * @see LLVMContext::setYieldCallback()
404  */
405 void LLVMContextSetYieldCallback(LLVMContextRef C, LLVMYieldCallback Callback,
406                                  void *OpaqueHandle);
407 
408 /**
409  * Destroy a context instance.
410  *
411  * This should be called for every call to LLVMContextCreate() or memory
412  * will be leaked.
413  */
414 void LLVMContextDispose(LLVMContextRef C);
415 
416 /**
417  * Return a string representation of the DiagnosticInfo. Use
418  * LLVMDisposeMessage to free the string.
419  *
420  * @see DiagnosticInfo::print()
421  */
422 char *LLVMGetDiagInfoDescription(LLVMDiagnosticInfoRef DI);
423 
424 /**
425  * Return an enum LLVMDiagnosticSeverity.
426  *
427  * @see DiagnosticInfo::getSeverity()
428  */
429 LLVMDiagnosticSeverity LLVMGetDiagInfoSeverity(LLVMDiagnosticInfoRef DI);
430 
431 unsigned LLVMGetMDKindIDInContext(LLVMContextRef C, const char* Name,
432                                   unsigned SLen);
433 unsigned LLVMGetMDKindID(const char* Name, unsigned SLen);
434 
435 /**
436  * @}
437  */
438 
439 /**
440  * @defgroup LLVMCCoreModule Modules
441  *
442  * Modules represent the top-level structure in an LLVM program. An LLVM
443  * module is effectively a translation unit or a collection of
444  * translation units merged together.
445  *
446  * @{
447  */
448 
449 /**
450  * Create a new, empty module in the global context.
451  *
452  * This is equivalent to calling LLVMModuleCreateWithNameInContext with
453  * LLVMGetGlobalContext() as the context parameter.
454  *
455  * Every invocation should be paired with LLVMDisposeModule() or memory
456  * will be leaked.
457  */
458 LLVMModuleRef LLVMModuleCreateWithName(const char *ModuleID);
459 
460 /**
461  * Create a new, empty module in a specific context.
462  *
463  * Every invocation should be paired with LLVMDisposeModule() or memory
464  * will be leaked.
465  */
466 LLVMModuleRef LLVMModuleCreateWithNameInContext(const char *ModuleID,
467                                                 LLVMContextRef C);
468 /**
469  * Return an exact copy of the specified module.
470  */
471 LLVMModuleRef LLVMCloneModule(LLVMModuleRef M);
472 
473 /**
474  * Destroy a module instance.
475  *
476  * This must be called for every created module or memory will be
477  * leaked.
478  */
479 void LLVMDisposeModule(LLVMModuleRef M);
480 
481 /**
482  * Obtain the data layout for a module.
483  *
484  * @see Module::getDataLayout()
485  */
486 const char *LLVMGetDataLayout(LLVMModuleRef M);
487 
488 /**
489  * Set the data layout for a module.
490  *
491  * @see Module::setDataLayout()
492  */
493 void LLVMSetDataLayout(LLVMModuleRef M, const char *Triple);
494 
495 /**
496  * Obtain the target triple for a module.
497  *
498  * @see Module::getTargetTriple()
499  */
500 const char *LLVMGetTarget(LLVMModuleRef M);
501 
502 /**
503  * Set the target triple for a module.
504  *
505  * @see Module::setTargetTriple()
506  */
507 void LLVMSetTarget(LLVMModuleRef M, const char *Triple);
508 
509 /**
510  * Dump a representation of a module to stderr.
511  *
512  * @see Module::dump()
513  */
514 void LLVMDumpModule(LLVMModuleRef M);
515 
516 /**
517  * Print a representation of a module to a file. The ErrorMessage needs to be
518  * disposed with LLVMDisposeMessage. Returns 0 on success, 1 otherwise.
519  *
520  * @see Module::print()
521  */
522 LLVMBool LLVMPrintModuleToFile(LLVMModuleRef M, const char *Filename,
523                                char **ErrorMessage);
524 
525 /**
526  * Return a string representation of the module. Use
527  * LLVMDisposeMessage to free the string.
528  *
529  * @see Module::print()
530  */
531 char *LLVMPrintModuleToString(LLVMModuleRef M);
532 
533 /**
534  * Set inline assembly for a module.
535  *
536  * @see Module::setModuleInlineAsm()
537  */
538 void LLVMSetModuleInlineAsm(LLVMModuleRef M, const char *Asm);
539 
540 /**
541  * Obtain the context to which this module is associated.
542  *
543  * @see Module::getContext()
544  */
545 LLVMContextRef LLVMGetModuleContext(LLVMModuleRef M);
546 
547 /**
548  * Obtain a Type from a module by its registered name.
549  */
550 LLVMTypeRef LLVMGetTypeByName(LLVMModuleRef M, const char *Name);
551 
552 /**
553  * Obtain the number of operands for named metadata in a module.
554  *
555  * @see llvm::Module::getNamedMetadata()
556  */
557 unsigned LLVMGetNamedMetadataNumOperands(LLVMModuleRef M, const char* name);
558 
559 /**
560  * Obtain the named metadata operands for a module.
561  *
562  * The passed LLVMValueRef pointer should refer to an array of
563  * LLVMValueRef at least LLVMGetNamedMetadataNumOperands long. This
564  * array will be populated with the LLVMValueRef instances. Each
565  * instance corresponds to a llvm::MDNode.
566  *
567  * @see llvm::Module::getNamedMetadata()
568  * @see llvm::MDNode::getOperand()
569  */
570 void LLVMGetNamedMetadataOperands(LLVMModuleRef M, const char* name, LLVMValueRef *Dest);
571 
572 /**
573  * Add an operand to named metadata.
574  *
575  * @see llvm::Module::getNamedMetadata()
576  * @see llvm::MDNode::addOperand()
577  */
578 void LLVMAddNamedMetadataOperand(LLVMModuleRef M, const char* name,
579                                  LLVMValueRef Val);
580 
581 /**
582  * Add a function to a module under a specified name.
583  *
584  * @see llvm::Function::Create()
585  */
586 LLVMValueRef LLVMAddFunction(LLVMModuleRef M, const char *Name,
587                              LLVMTypeRef FunctionTy);
588 
589 /**
590  * Obtain a Function value from a Module by its name.
591  *
592  * The returned value corresponds to a llvm::Function value.
593  *
594  * @see llvm::Module::getFunction()
595  */
596 LLVMValueRef LLVMGetNamedFunction(LLVMModuleRef M, const char *Name);
597 
598 /**
599  * Obtain an iterator to the first Function in a Module.
600  *
601  * @see llvm::Module::begin()
602  */
603 LLVMValueRef LLVMGetFirstFunction(LLVMModuleRef M);
604 
605 /**
606  * Obtain an iterator to the last Function in a Module.
607  *
608  * @see llvm::Module::end()
609  */
610 LLVMValueRef LLVMGetLastFunction(LLVMModuleRef M);
611 
612 /**
613  * Advance a Function iterator to the next Function.
614  *
615  * Returns NULL if the iterator was already at the end and there are no more
616  * functions.
617  */
618 LLVMValueRef LLVMGetNextFunction(LLVMValueRef Fn);
619 
620 /**
621  * Decrement a Function iterator to the previous Function.
622  *
623  * Returns NULL if the iterator was already at the beginning and there are
624  * no previous functions.
625  */
626 LLVMValueRef LLVMGetPreviousFunction(LLVMValueRef Fn);
627 
628 /**
629  * @}
630  */
631 
632 /**
633  * @defgroup LLVMCCoreType Types
634  *
635  * Types represent the type of a value.
636  *
637  * Types are associated with a context instance. The context internally
638  * deduplicates types so there is only 1 instance of a specific type
639  * alive at a time. In other words, a unique type is shared among all
640  * consumers within a context.
641  *
642  * A Type in the C API corresponds to llvm::Type.
643  *
644  * Types have the following hierarchy:
645  *
646  *   types:
647  *     integer type
648  *     real type
649  *     function type
650  *     sequence types:
651  *       array type
652  *       pointer type
653  *       vector type
654  *     void type
655  *     label type
656  *     opaque type
657  *
658  * @{
659  */
660 
661 /**
662  * Obtain the enumerated type of a Type instance.
663  *
664  * @see llvm::Type:getTypeID()
665  */
666 LLVMTypeKind LLVMGetTypeKind(LLVMTypeRef Ty);
667 
668 /**
669  * Whether the type has a known size.
670  *
671  * Things that don't have a size are abstract types, labels, and void.a
672  *
673  * @see llvm::Type::isSized()
674  */
675 LLVMBool LLVMTypeIsSized(LLVMTypeRef Ty);
676 
677 /**
678  * Obtain the context to which this type instance is associated.
679  *
680  * @see llvm::Type::getContext()
681  */
682 LLVMContextRef LLVMGetTypeContext(LLVMTypeRef Ty);
683 
684 /**
685  * Dump a representation of a type to stderr.
686  *
687  * @see llvm::Type::dump()
688  */
689 void LLVMDumpType(LLVMTypeRef Val);
690 
691 /**
692  * Return a string representation of the type. Use
693  * LLVMDisposeMessage to free the string.
694  *
695  * @see llvm::Type::print()
696  */
697 char *LLVMPrintTypeToString(LLVMTypeRef Val);
698 
699 /**
700  * @defgroup LLVMCCoreTypeInt Integer Types
701  *
702  * Functions in this section operate on integer types.
703  *
704  * @{
705  */
706 
707 /**
708  * Obtain an integer type from a context with specified bit width.
709  */
710 LLVMTypeRef LLVMInt1TypeInContext(LLVMContextRef C);
711 LLVMTypeRef LLVMInt8TypeInContext(LLVMContextRef C);
712 LLVMTypeRef LLVMInt16TypeInContext(LLVMContextRef C);
713 LLVMTypeRef LLVMInt32TypeInContext(LLVMContextRef C);
714 LLVMTypeRef LLVMInt64TypeInContext(LLVMContextRef C);
715 LLVMTypeRef LLVMInt128TypeInContext(LLVMContextRef C);
716 LLVMTypeRef LLVMIntTypeInContext(LLVMContextRef C, unsigned NumBits);
717 
718 /**
719  * Obtain an integer type from the global context with a specified bit
720  * width.
721  */
722 LLVMTypeRef LLVMInt1Type(void);
723 LLVMTypeRef LLVMInt8Type(void);
724 LLVMTypeRef LLVMInt16Type(void);
725 LLVMTypeRef LLVMInt32Type(void);
726 LLVMTypeRef LLVMInt64Type(void);
727 LLVMTypeRef LLVMInt128Type(void);
728 LLVMTypeRef LLVMIntType(unsigned NumBits);
729 unsigned LLVMGetIntTypeWidth(LLVMTypeRef IntegerTy);
730 
731 /**
732  * @}
733  */
734 
735 /**
736  * @defgroup LLVMCCoreTypeFloat Floating Point Types
737  *
738  * @{
739  */
740 
741 /**
742  * Obtain a 16-bit floating point type from a context.
743  */
744 LLVMTypeRef LLVMHalfTypeInContext(LLVMContextRef C);
745 
746 /**
747  * Obtain a 32-bit floating point type from a context.
748  */
749 LLVMTypeRef LLVMFloatTypeInContext(LLVMContextRef C);
750 
751 /**
752  * Obtain a 64-bit floating point type from a context.
753  */
754 LLVMTypeRef LLVMDoubleTypeInContext(LLVMContextRef C);
755 
756 /**
757  * Obtain a 80-bit floating point type (X87) from a context.
758  */
759 LLVMTypeRef LLVMX86FP80TypeInContext(LLVMContextRef C);
760 
761 /**
762  * Obtain a 128-bit floating point type (112-bit mantissa) from a
763  * context.
764  */
765 LLVMTypeRef LLVMFP128TypeInContext(LLVMContextRef C);
766 
767 /**
768  * Obtain a 128-bit floating point type (two 64-bits) from a context.
769  */
770 LLVMTypeRef LLVMPPCFP128TypeInContext(LLVMContextRef C);
771 
772 /**
773  * Obtain a floating point type from the global context.
774  *
775  * These map to the functions in this group of the same name.
776  */
777 LLVMTypeRef LLVMHalfType(void);
778 LLVMTypeRef LLVMFloatType(void);
779 LLVMTypeRef LLVMDoubleType(void);
780 LLVMTypeRef LLVMX86FP80Type(void);
781 LLVMTypeRef LLVMFP128Type(void);
782 LLVMTypeRef LLVMPPCFP128Type(void);
783 
784 /**
785  * @}
786  */
787 
788 /**
789  * @defgroup LLVMCCoreTypeFunction Function Types
790  *
791  * @{
792  */
793 
794 /**
795  * Obtain a function type consisting of a specified signature.
796  *
797  * The function is defined as a tuple of a return Type, a list of
798  * parameter types, and whether the function is variadic.
799  */
800 LLVMTypeRef LLVMFunctionType(LLVMTypeRef ReturnType,
801                              LLVMTypeRef *ParamTypes, unsigned ParamCount,
802                              LLVMBool IsVarArg);
803 
804 /**
805  * Returns whether a function type is variadic.
806  */
807 LLVMBool LLVMIsFunctionVarArg(LLVMTypeRef FunctionTy);
808 
809 /**
810  * Obtain the Type this function Type returns.
811  */
812 LLVMTypeRef LLVMGetReturnType(LLVMTypeRef FunctionTy);
813 
814 /**
815  * Obtain the number of parameters this function accepts.
816  */
817 unsigned LLVMCountParamTypes(LLVMTypeRef FunctionTy);
818 
819 /**
820  * Obtain the types of a function's parameters.
821  *
822  * The Dest parameter should point to a pre-allocated array of
823  * LLVMTypeRef at least LLVMCountParamTypes() large. On return, the
824  * first LLVMCountParamTypes() entries in the array will be populated
825  * with LLVMTypeRef instances.
826  *
827  * @param FunctionTy The function type to operate on.
828  * @param Dest Memory address of an array to be filled with result.
829  */
830 void LLVMGetParamTypes(LLVMTypeRef FunctionTy, LLVMTypeRef *Dest);
831 
832 /**
833  * @}
834  */
835 
836 /**
837  * @defgroup LLVMCCoreTypeStruct Structure Types
838  *
839  * These functions relate to LLVMTypeRef instances.
840  *
841  * @see llvm::StructType
842  *
843  * @{
844  */
845 
846 /**
847  * Create a new structure type in a context.
848  *
849  * A structure is specified by a list of inner elements/types and
850  * whether these can be packed together.
851  *
852  * @see llvm::StructType::create()
853  */
854 LLVMTypeRef LLVMStructTypeInContext(LLVMContextRef C, LLVMTypeRef *ElementTypes,
855                                     unsigned ElementCount, LLVMBool Packed);
856 
857 /**
858  * Create a new structure type in the global context.
859  *
860  * @see llvm::StructType::create()
861  */
862 LLVMTypeRef LLVMStructType(LLVMTypeRef *ElementTypes, unsigned ElementCount,
863                            LLVMBool Packed);
864 
865 /**
866  * Create an empty structure in a context having a specified name.
867  *
868  * @see llvm::StructType::create()
869  */
870 LLVMTypeRef LLVMStructCreateNamed(LLVMContextRef C, const char *Name);
871 
872 /**
873  * Obtain the name of a structure.
874  *
875  * @see llvm::StructType::getName()
876  */
877 const char *LLVMGetStructName(LLVMTypeRef Ty);
878 
879 /**
880  * Set the contents of a structure type.
881  *
882  * @see llvm::StructType::setBody()
883  */
884 void LLVMStructSetBody(LLVMTypeRef StructTy, LLVMTypeRef *ElementTypes,
885                        unsigned ElementCount, LLVMBool Packed);
886 
887 /**
888  * Get the number of elements defined inside the structure.
889  *
890  * @see llvm::StructType::getNumElements()
891  */
892 unsigned LLVMCountStructElementTypes(LLVMTypeRef StructTy);
893 
894 /**
895  * Get the elements within a structure.
896  *
897  * The function is passed the address of a pre-allocated array of
898  * LLVMTypeRef at least LLVMCountStructElementTypes() long. After
899  * invocation, this array will be populated with the structure's
900  * elements. The objects in the destination array will have a lifetime
901  * of the structure type itself, which is the lifetime of the context it
902  * is contained in.
903  */
904 void LLVMGetStructElementTypes(LLVMTypeRef StructTy, LLVMTypeRef *Dest);
905 
906 /**
907  * Get the type of the element at a given index in the structure.
908  *
909  * @see llvm::StructType::getTypeAtIndex()
910  */
911 LLVMTypeRef LLVMStructGetTypeAtIndex(LLVMTypeRef StructTy, unsigned i);
912 
913 /**
914  * Determine whether a structure is packed.
915  *
916  * @see llvm::StructType::isPacked()
917  */
918 LLVMBool LLVMIsPackedStruct(LLVMTypeRef StructTy);
919 
920 /**
921  * Determine whether a structure is opaque.
922  *
923  * @see llvm::StructType::isOpaque()
924  */
925 LLVMBool LLVMIsOpaqueStruct(LLVMTypeRef StructTy);
926 
927 /**
928  * @}
929  */
930 
931 /**
932  * @defgroup LLVMCCoreTypeSequential Sequential Types
933  *
934  * Sequential types represents "arrays" of types. This is a super class
935  * for array, vector, and pointer types.
936  *
937  * @{
938  */
939 
940 /**
941  * Obtain the type of elements within a sequential type.
942  *
943  * This works on array, vector, and pointer types.
944  *
945  * @see llvm::SequentialType::getElementType()
946  */
947 LLVMTypeRef LLVMGetElementType(LLVMTypeRef Ty);
948 
949 /**
950  * Create a fixed size array type that refers to a specific type.
951  *
952  * The created type will exist in the context that its element type
953  * exists in.
954  *
955  * @see llvm::ArrayType::get()
956  */
957 LLVMTypeRef LLVMArrayType(LLVMTypeRef ElementType, unsigned ElementCount);
958 
959 /**
960  * Obtain the length of an array type.
961  *
962  * This only works on types that represent arrays.
963  *
964  * @see llvm::ArrayType::getNumElements()
965  */
966 unsigned LLVMGetArrayLength(LLVMTypeRef ArrayTy);
967 
968 /**
969  * Create a pointer type that points to a defined type.
970  *
971  * The created type will exist in the context that its pointee type
972  * exists in.
973  *
974  * @see llvm::PointerType::get()
975  */
976 LLVMTypeRef LLVMPointerType(LLVMTypeRef ElementType, unsigned AddressSpace);
977 
978 /**
979  * Obtain the address space of a pointer type.
980  *
981  * This only works on types that represent pointers.
982  *
983  * @see llvm::PointerType::getAddressSpace()
984  */
985 unsigned LLVMGetPointerAddressSpace(LLVMTypeRef PointerTy);
986 
987 /**
988  * Create a vector type that contains a defined type and has a specific
989  * number of elements.
990  *
991  * The created type will exist in the context thats its element type
992  * exists in.
993  *
994  * @see llvm::VectorType::get()
995  */
996 LLVMTypeRef LLVMVectorType(LLVMTypeRef ElementType, unsigned ElementCount);
997 
998 /**
999  * Obtain the number of elements in a vector type.
1000  *
1001  * This only works on types that represent vectors.
1002  *
1003  * @see llvm::VectorType::getNumElements()
1004  */
1005 unsigned LLVMGetVectorSize(LLVMTypeRef VectorTy);
1006 
1007 /**
1008  * @}
1009  */
1010 
1011 /**
1012  * @defgroup LLVMCCoreTypeOther Other Types
1013  *
1014  * @{
1015  */
1016 
1017 /**
1018  * Create a void type in a context.
1019  */
1020 LLVMTypeRef LLVMVoidTypeInContext(LLVMContextRef C);
1021 
1022 /**
1023  * Create a label type in a context.
1024  */
1025 LLVMTypeRef LLVMLabelTypeInContext(LLVMContextRef C);
1026 
1027 /**
1028  * Create a X86 MMX type in a context.
1029  */
1030 LLVMTypeRef LLVMX86MMXTypeInContext(LLVMContextRef C);
1031 
1032 /**
1033  * These are similar to the above functions except they operate on the
1034  * global context.
1035  */
1036 LLVMTypeRef LLVMVoidType(void);
1037 LLVMTypeRef LLVMLabelType(void);
1038 LLVMTypeRef LLVMX86MMXType(void);
1039 
1040 /**
1041  * @}
1042  */
1043 
1044 /**
1045  * @}
1046  */
1047 
1048 /**
1049  * @defgroup LLVMCCoreValues Values
1050  *
1051  * The bulk of LLVM's object model consists of values, which comprise a very
1052  * rich type hierarchy.
1053  *
1054  * LLVMValueRef essentially represents llvm::Value. There is a rich
1055  * hierarchy of classes within this type. Depending on the instance
1056  * obtained, not all APIs are available.
1057  *
1058  * Callers can determine the type of an LLVMValueRef by calling the
1059  * LLVMIsA* family of functions (e.g. LLVMIsAArgument()). These
1060  * functions are defined by a macro, so it isn't obvious which are
1061  * available by looking at the Doxygen source code. Instead, look at the
1062  * source definition of LLVM_FOR_EACH_VALUE_SUBCLASS and note the list
1063  * of value names given. These value names also correspond to classes in
1064  * the llvm::Value hierarchy.
1065  *
1066  * @{
1067  */
1068 
1069 #define LLVM_FOR_EACH_VALUE_SUBCLASS(macro) \
1070   macro(Argument)                           \
1071   macro(BasicBlock)                         \
1072   macro(InlineAsm)                          \
1073   macro(User)                               \
1074     macro(Constant)                         \
1075       macro(BlockAddress)                   \
1076       macro(ConstantAggregateZero)          \
1077       macro(ConstantArray)                  \
1078       macro(ConstantDataSequential)         \
1079         macro(ConstantDataArray)            \
1080         macro(ConstantDataVector)           \
1081       macro(ConstantExpr)                   \
1082       macro(ConstantFP)                     \
1083       macro(ConstantInt)                    \
1084       macro(ConstantPointerNull)            \
1085       macro(ConstantStruct)                 \
1086       macro(ConstantTokenNone)              \
1087       macro(ConstantVector)                 \
1088       macro(GlobalValue)                    \
1089         macro(GlobalAlias)                  \
1090         macro(GlobalObject)                 \
1091           macro(Function)                   \
1092           macro(GlobalVariable)             \
1093       macro(UndefValue)                     \
1094     macro(Instruction)                      \
1095       macro(BinaryOperator)                 \
1096       macro(CallInst)                       \
1097         macro(IntrinsicInst)                \
1098           macro(DbgInfoIntrinsic)           \
1099             macro(DbgDeclareInst)           \
1100           macro(MemIntrinsic)               \
1101             macro(MemCpyInst)               \
1102             macro(MemMoveInst)              \
1103             macro(MemSetInst)               \
1104       macro(CmpInst)                        \
1105         macro(FCmpInst)                     \
1106         macro(ICmpInst)                     \
1107       macro(ExtractElementInst)             \
1108       macro(GetElementPtrInst)              \
1109       macro(InsertElementInst)              \
1110       macro(InsertValueInst)                \
1111       macro(LandingPadInst)                 \
1112       macro(PHINode)                        \
1113       macro(SelectInst)                     \
1114       macro(ShuffleVectorInst)              \
1115       macro(StoreInst)                      \
1116       macro(TerminatorInst)                 \
1117         macro(BranchInst)                   \
1118         macro(IndirectBrInst)               \
1119         macro(InvokeInst)                   \
1120         macro(ReturnInst)                   \
1121         macro(SwitchInst)                   \
1122         macro(UnreachableInst)              \
1123         macro(ResumeInst)                   \
1124         macro(CleanupReturnInst)            \
1125         macro(CatchReturnInst)              \
1126       macro(FuncletPadInst)                 \
1127         macro(CatchPadInst)                 \
1128         macro(CleanupPadInst)               \
1129       macro(UnaryInstruction)               \
1130         macro(AllocaInst)                   \
1131         macro(CastInst)                     \
1132           macro(AddrSpaceCastInst)          \
1133           macro(BitCastInst)                \
1134           macro(FPExtInst)                  \
1135           macro(FPToSIInst)                 \
1136           macro(FPToUIInst)                 \
1137           macro(FPTruncInst)                \
1138           macro(IntToPtrInst)               \
1139           macro(PtrToIntInst)               \
1140           macro(SExtInst)                   \
1141           macro(SIToFPInst)                 \
1142           macro(TruncInst)                  \
1143           macro(UIToFPInst)                 \
1144           macro(ZExtInst)                   \
1145         macro(ExtractValueInst)             \
1146         macro(LoadInst)                     \
1147         macro(VAArgInst)
1148 
1149 /**
1150  * @defgroup LLVMCCoreValueGeneral General APIs
1151  *
1152  * Functions in this section work on all LLVMValueRef instances,
1153  * regardless of their sub-type. They correspond to functions available
1154  * on llvm::Value.
1155  *
1156  * @{
1157  */
1158 
1159 /**
1160  * Obtain the type of a value.
1161  *
1162  * @see llvm::Value::getType()
1163  */
1164 LLVMTypeRef LLVMTypeOf(LLVMValueRef Val);
1165 
1166 /**
1167  * Obtain the string name of a value.
1168  *
1169  * @see llvm::Value::getName()
1170  */
1171 const char *LLVMGetValueName(LLVMValueRef Val);
1172 
1173 /**
1174  * Set the string name of a value.
1175  *
1176  * @see llvm::Value::setName()
1177  */
1178 void LLVMSetValueName(LLVMValueRef Val, const char *Name);
1179 
1180 /**
1181  * Dump a representation of a value to stderr.
1182  *
1183  * @see llvm::Value::dump()
1184  */
1185 void LLVMDumpValue(LLVMValueRef Val);
1186 
1187 /**
1188  * Return a string representation of the value. Use
1189  * LLVMDisposeMessage to free the string.
1190  *
1191  * @see llvm::Value::print()
1192  */
1193 char *LLVMPrintValueToString(LLVMValueRef Val);
1194 
1195 /**
1196  * Replace all uses of a value with another one.
1197  *
1198  * @see llvm::Value::replaceAllUsesWith()
1199  */
1200 void LLVMReplaceAllUsesWith(LLVMValueRef OldVal, LLVMValueRef NewVal);
1201 
1202 /**
1203  * Determine whether the specified constant instance is constant.
1204  */
1205 LLVMBool LLVMIsConstant(LLVMValueRef Val);
1206 
1207 /**
1208  * Determine whether a value instance is undefined.
1209  */
1210 LLVMBool LLVMIsUndef(LLVMValueRef Val);
1211 
1212 /**
1213  * Convert value instances between types.
1214  *
1215  * Internally, an LLVMValueRef is "pinned" to a specific type. This
1216  * series of functions allows you to cast an instance to a specific
1217  * type.
1218  *
1219  * If the cast is not valid for the specified type, NULL is returned.
1220  *
1221  * @see llvm::dyn_cast_or_null<>
1222  */
1223 #define LLVM_DECLARE_VALUE_CAST(name) \
1224   LLVMValueRef LLVMIsA##name(LLVMValueRef Val);
1225 LLVM_FOR_EACH_VALUE_SUBCLASS(LLVM_DECLARE_VALUE_CAST)
1226 
1227 LLVMValueRef LLVMIsAMDNode(LLVMValueRef Val);
1228 LLVMValueRef LLVMIsAMDString(LLVMValueRef Val);
1229 
1230 /**
1231  * @}
1232  */
1233 
1234 /**
1235  * @defgroup LLVMCCoreValueUses Usage
1236  *
1237  * This module defines functions that allow you to inspect the uses of a
1238  * LLVMValueRef.
1239  *
1240  * It is possible to obtain an LLVMUseRef for any LLVMValueRef instance.
1241  * Each LLVMUseRef (which corresponds to a llvm::Use instance) holds a
1242  * llvm::User and llvm::Value.
1243  *
1244  * @{
1245  */
1246 
1247 /**
1248  * Obtain the first use of a value.
1249  *
1250  * Uses are obtained in an iterator fashion. First, call this function
1251  * to obtain a reference to the first use. Then, call LLVMGetNextUse()
1252  * on that instance and all subsequently obtained instances until
1253  * LLVMGetNextUse() returns NULL.
1254  *
1255  * @see llvm::Value::use_begin()
1256  */
1257 LLVMUseRef LLVMGetFirstUse(LLVMValueRef Val);
1258 
1259 /**
1260  * Obtain the next use of a value.
1261  *
1262  * This effectively advances the iterator. It returns NULL if you are on
1263  * the final use and no more are available.
1264  */
1265 LLVMUseRef LLVMGetNextUse(LLVMUseRef U);
1266 
1267 /**
1268  * Obtain the user value for a user.
1269  *
1270  * The returned value corresponds to a llvm::User type.
1271  *
1272  * @see llvm::Use::getUser()
1273  */
1274 LLVMValueRef LLVMGetUser(LLVMUseRef U);
1275 
1276 /**
1277  * Obtain the value this use corresponds to.
1278  *
1279  * @see llvm::Use::get().
1280  */
1281 LLVMValueRef LLVMGetUsedValue(LLVMUseRef U);
1282 
1283 /**
1284  * @}
1285  */
1286 
1287 /**
1288  * @defgroup LLVMCCoreValueUser User value
1289  *
1290  * Function in this group pertain to LLVMValueRef instances that descent
1291  * from llvm::User. This includes constants, instructions, and
1292  * operators.
1293  *
1294  * @{
1295  */
1296 
1297 /**
1298  * Obtain an operand at a specific index in a llvm::User value.
1299  *
1300  * @see llvm::User::getOperand()
1301  */
1302 LLVMValueRef LLVMGetOperand(LLVMValueRef Val, unsigned Index);
1303 
1304 /**
1305  * Obtain the use of an operand at a specific index in a llvm::User value.
1306  *
1307  * @see llvm::User::getOperandUse()
1308  */
1309 LLVMUseRef LLVMGetOperandUse(LLVMValueRef Val, unsigned Index);
1310 
1311 /**
1312  * Set an operand at a specific index in a llvm::User value.
1313  *
1314  * @see llvm::User::setOperand()
1315  */
1316 void LLVMSetOperand(LLVMValueRef User, unsigned Index, LLVMValueRef Val);
1317 
1318 /**
1319  * Obtain the number of operands in a llvm::User value.
1320  *
1321  * @see llvm::User::getNumOperands()
1322  */
1323 int LLVMGetNumOperands(LLVMValueRef Val);
1324 
1325 /**
1326  * @}
1327  */
1328 
1329 /**
1330  * @defgroup LLVMCCoreValueConstant Constants
1331  *
1332  * This section contains APIs for interacting with LLVMValueRef that
1333  * correspond to llvm::Constant instances.
1334  *
1335  * These functions will work for any LLVMValueRef in the llvm::Constant
1336  * class hierarchy.
1337  *
1338  * @{
1339  */
1340 
1341 /**
1342  * Obtain a constant value referring to the null instance of a type.
1343  *
1344  * @see llvm::Constant::getNullValue()
1345  */
1346 LLVMValueRef LLVMConstNull(LLVMTypeRef Ty); /* all zeroes */
1347 
1348 /**
1349  * Obtain a constant value referring to the instance of a type
1350  * consisting of all ones.
1351  *
1352  * This is only valid for integer types.
1353  *
1354  * @see llvm::Constant::getAllOnesValue()
1355  */
1356 LLVMValueRef LLVMConstAllOnes(LLVMTypeRef Ty);
1357 
1358 /**
1359  * Obtain a constant value referring to an undefined value of a type.
1360  *
1361  * @see llvm::UndefValue::get()
1362  */
1363 LLVMValueRef LLVMGetUndef(LLVMTypeRef Ty);
1364 
1365 /**
1366  * Determine whether a value instance is null.
1367  *
1368  * @see llvm::Constant::isNullValue()
1369  */
1370 LLVMBool LLVMIsNull(LLVMValueRef Val);
1371 
1372 /**
1373  * Obtain a constant that is a constant pointer pointing to NULL for a
1374  * specified type.
1375  */
1376 LLVMValueRef LLVMConstPointerNull(LLVMTypeRef Ty);
1377 
1378 /**
1379  * @defgroup LLVMCCoreValueConstantScalar Scalar constants
1380  *
1381  * Functions in this group model LLVMValueRef instances that correspond
1382  * to constants referring to scalar types.
1383  *
1384  * For integer types, the LLVMTypeRef parameter should correspond to a
1385  * llvm::IntegerType instance and the returned LLVMValueRef will
1386  * correspond to a llvm::ConstantInt.
1387  *
1388  * For floating point types, the LLVMTypeRef returned corresponds to a
1389  * llvm::ConstantFP.
1390  *
1391  * @{
1392  */
1393 
1394 /**
1395  * Obtain a constant value for an integer type.
1396  *
1397  * The returned value corresponds to a llvm::ConstantInt.
1398  *
1399  * @see llvm::ConstantInt::get()
1400  *
1401  * @param IntTy Integer type to obtain value of.
1402  * @param N The value the returned instance should refer to.
1403  * @param SignExtend Whether to sign extend the produced value.
1404  */
1405 LLVMValueRef LLVMConstInt(LLVMTypeRef IntTy, unsigned long long N,
1406                           LLVMBool SignExtend);
1407 
1408 /**
1409  * Obtain a constant value for an integer of arbitrary precision.
1410  *
1411  * @see llvm::ConstantInt::get()
1412  */
1413 LLVMValueRef LLVMConstIntOfArbitraryPrecision(LLVMTypeRef IntTy,
1414                                               unsigned NumWords,
1415                                               const uint64_t Words[]);
1416 
1417 /**
1418  * Obtain a constant value for an integer parsed from a string.
1419  *
1420  * A similar API, LLVMConstIntOfStringAndSize is also available. If the
1421  * string's length is available, it is preferred to call that function
1422  * instead.
1423  *
1424  * @see llvm::ConstantInt::get()
1425  */
1426 LLVMValueRef LLVMConstIntOfString(LLVMTypeRef IntTy, const char *Text,
1427                                   uint8_t Radix);
1428 
1429 /**
1430  * Obtain a constant value for an integer parsed from a string with
1431  * specified length.
1432  *
1433  * @see llvm::ConstantInt::get()
1434  */
1435 LLVMValueRef LLVMConstIntOfStringAndSize(LLVMTypeRef IntTy, const char *Text,
1436                                          unsigned SLen, uint8_t Radix);
1437 
1438 /**
1439  * Obtain a constant value referring to a double floating point value.
1440  */
1441 LLVMValueRef LLVMConstReal(LLVMTypeRef RealTy, double N);
1442 
1443 /**
1444  * Obtain a constant for a floating point value parsed from a string.
1445  *
1446  * A similar API, LLVMConstRealOfStringAndSize is also available. It
1447  * should be used if the input string's length is known.
1448  */
1449 LLVMValueRef LLVMConstRealOfString(LLVMTypeRef RealTy, const char *Text);
1450 
1451 /**
1452  * Obtain a constant for a floating point value parsed from a string.
1453  */
1454 LLVMValueRef LLVMConstRealOfStringAndSize(LLVMTypeRef RealTy, const char *Text,
1455                                           unsigned SLen);
1456 
1457 /**
1458  * Obtain the zero extended value for an integer constant value.
1459  *
1460  * @see llvm::ConstantInt::getZExtValue()
1461  */
1462 unsigned long long LLVMConstIntGetZExtValue(LLVMValueRef ConstantVal);
1463 
1464 /**
1465  * Obtain the sign extended value for an integer constant value.
1466  *
1467  * @see llvm::ConstantInt::getSExtValue()
1468  */
1469 long long LLVMConstIntGetSExtValue(LLVMValueRef ConstantVal);
1470 
1471 /**
1472  * Obtain the double value for an floating point constant value.
1473  * losesInfo indicates if some precision was lost in the conversion.
1474  *
1475  * @see llvm::ConstantFP::getDoubleValue
1476  */
1477 double LLVMConstRealGetDouble(LLVMValueRef ConstantVal, LLVMBool *losesInfo);
1478 
1479 /**
1480  * @}
1481  */
1482 
1483 /**
1484  * @defgroup LLVMCCoreValueConstantComposite Composite Constants
1485  *
1486  * Functions in this group operate on composite constants.
1487  *
1488  * @{
1489  */
1490 
1491 /**
1492  * Create a ConstantDataSequential and initialize it with a string.
1493  *
1494  * @see llvm::ConstantDataArray::getString()
1495  */
1496 LLVMValueRef LLVMConstStringInContext(LLVMContextRef C, const char *Str,
1497                                       unsigned Length, LLVMBool DontNullTerminate);
1498 
1499 /**
1500  * Create a ConstantDataSequential with string content in the global context.
1501  *
1502  * This is the same as LLVMConstStringInContext except it operates on the
1503  * global context.
1504  *
1505  * @see LLVMConstStringInContext()
1506  * @see llvm::ConstantDataArray::getString()
1507  */
1508 LLVMValueRef LLVMConstString(const char *Str, unsigned Length,
1509                              LLVMBool DontNullTerminate);
1510 
1511 /**
1512  * Returns true if the specified constant is an array of i8.
1513  *
1514  * @see ConstantDataSequential::getAsString()
1515  */
1516 LLVMBool LLVMIsConstantString(LLVMValueRef c);
1517 
1518 /**
1519  * Get the given constant data sequential as a string.
1520  *
1521  * @see ConstantDataSequential::getAsString()
1522  */
1523 const char *LLVMGetAsString(LLVMValueRef c, size_t* out);
1524 
1525 /**
1526  * Create an anonymous ConstantStruct with the specified values.
1527  *
1528  * @see llvm::ConstantStruct::getAnon()
1529  */
1530 LLVMValueRef LLVMConstStructInContext(LLVMContextRef C,
1531                                       LLVMValueRef *ConstantVals,
1532                                       unsigned Count, LLVMBool Packed);
1533 
1534 /**
1535  * Create a ConstantStruct in the global Context.
1536  *
1537  * This is the same as LLVMConstStructInContext except it operates on the
1538  * global Context.
1539  *
1540  * @see LLVMConstStructInContext()
1541  */
1542 LLVMValueRef LLVMConstStruct(LLVMValueRef *ConstantVals, unsigned Count,
1543                              LLVMBool Packed);
1544 
1545 /**
1546  * Create a ConstantArray from values.
1547  *
1548  * @see llvm::ConstantArray::get()
1549  */
1550 LLVMValueRef LLVMConstArray(LLVMTypeRef ElementTy,
1551                             LLVMValueRef *ConstantVals, unsigned Length);
1552 
1553 /**
1554  * Create a non-anonymous ConstantStruct from values.
1555  *
1556  * @see llvm::ConstantStruct::get()
1557  */
1558 LLVMValueRef LLVMConstNamedStruct(LLVMTypeRef StructTy,
1559                                   LLVMValueRef *ConstantVals,
1560                                   unsigned Count);
1561 
1562 /**
1563  * Get an element at specified index as a constant.
1564  *
1565  * @see ConstantDataSequential::getElementAsConstant()
1566  */
1567 LLVMValueRef LLVMGetElementAsConstant(LLVMValueRef c, unsigned idx);
1568 
1569 /**
1570  * Create a ConstantVector from values.
1571  *
1572  * @see llvm::ConstantVector::get()
1573  */
1574 LLVMValueRef LLVMConstVector(LLVMValueRef *ScalarConstantVals, unsigned Size);
1575 
1576 /**
1577  * @}
1578  */
1579 
1580 /**
1581  * @defgroup LLVMCCoreValueConstantExpressions Constant Expressions
1582  *
1583  * Functions in this group correspond to APIs on llvm::ConstantExpr.
1584  *
1585  * @see llvm::ConstantExpr.
1586  *
1587  * @{
1588  */
1589 LLVMOpcode LLVMGetConstOpcode(LLVMValueRef ConstantVal);
1590 LLVMValueRef LLVMAlignOf(LLVMTypeRef Ty);
1591 LLVMValueRef LLVMSizeOf(LLVMTypeRef Ty);
1592 LLVMValueRef LLVMConstNeg(LLVMValueRef ConstantVal);
1593 LLVMValueRef LLVMConstNSWNeg(LLVMValueRef ConstantVal);
1594 LLVMValueRef LLVMConstNUWNeg(LLVMValueRef ConstantVal);
1595 LLVMValueRef LLVMConstFNeg(LLVMValueRef ConstantVal);
1596 LLVMValueRef LLVMConstNot(LLVMValueRef ConstantVal);
1597 LLVMValueRef LLVMConstAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1598 LLVMValueRef LLVMConstNSWAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1599 LLVMValueRef LLVMConstNUWAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1600 LLVMValueRef LLVMConstFAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1601 LLVMValueRef LLVMConstSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1602 LLVMValueRef LLVMConstNSWSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1603 LLVMValueRef LLVMConstNUWSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1604 LLVMValueRef LLVMConstFSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1605 LLVMValueRef LLVMConstMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1606 LLVMValueRef LLVMConstNSWMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1607 LLVMValueRef LLVMConstNUWMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1608 LLVMValueRef LLVMConstFMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1609 LLVMValueRef LLVMConstUDiv(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1610 LLVMValueRef LLVMConstSDiv(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1611 LLVMValueRef LLVMConstExactSDiv(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1612 LLVMValueRef LLVMConstFDiv(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1613 LLVMValueRef LLVMConstURem(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1614 LLVMValueRef LLVMConstSRem(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1615 LLVMValueRef LLVMConstFRem(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1616 LLVMValueRef LLVMConstAnd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1617 LLVMValueRef LLVMConstOr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1618 LLVMValueRef LLVMConstXor(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1619 LLVMValueRef LLVMConstICmp(LLVMIntPredicate Predicate,
1620                            LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1621 LLVMValueRef LLVMConstFCmp(LLVMRealPredicate Predicate,
1622                            LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1623 LLVMValueRef LLVMConstShl(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1624 LLVMValueRef LLVMConstLShr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1625 LLVMValueRef LLVMConstAShr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
1626 LLVMValueRef LLVMConstGEP(LLVMValueRef ConstantVal,
1627                           LLVMValueRef *ConstantIndices, unsigned NumIndices);
1628 LLVMValueRef LLVMConstInBoundsGEP(LLVMValueRef ConstantVal,
1629                                   LLVMValueRef *ConstantIndices,
1630                                   unsigned NumIndices);
1631 LLVMValueRef LLVMConstTrunc(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1632 LLVMValueRef LLVMConstSExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1633 LLVMValueRef LLVMConstZExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1634 LLVMValueRef LLVMConstFPTrunc(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1635 LLVMValueRef LLVMConstFPExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1636 LLVMValueRef LLVMConstUIToFP(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1637 LLVMValueRef LLVMConstSIToFP(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1638 LLVMValueRef LLVMConstFPToUI(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1639 LLVMValueRef LLVMConstFPToSI(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1640 LLVMValueRef LLVMConstPtrToInt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1641 LLVMValueRef LLVMConstIntToPtr(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1642 LLVMValueRef LLVMConstBitCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1643 LLVMValueRef LLVMConstAddrSpaceCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1644 LLVMValueRef LLVMConstZExtOrBitCast(LLVMValueRef ConstantVal,
1645                                     LLVMTypeRef ToType);
1646 LLVMValueRef LLVMConstSExtOrBitCast(LLVMValueRef ConstantVal,
1647                                     LLVMTypeRef ToType);
1648 LLVMValueRef LLVMConstTruncOrBitCast(LLVMValueRef ConstantVal,
1649                                      LLVMTypeRef ToType);
1650 LLVMValueRef LLVMConstPointerCast(LLVMValueRef ConstantVal,
1651                                   LLVMTypeRef ToType);
1652 LLVMValueRef LLVMConstIntCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType,
1653                               LLVMBool isSigned);
1654 LLVMValueRef LLVMConstFPCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
1655 LLVMValueRef LLVMConstSelect(LLVMValueRef ConstantCondition,
1656                              LLVMValueRef ConstantIfTrue,
1657                              LLVMValueRef ConstantIfFalse);
1658 LLVMValueRef LLVMConstExtractElement(LLVMValueRef VectorConstant,
1659                                      LLVMValueRef IndexConstant);
1660 LLVMValueRef LLVMConstInsertElement(LLVMValueRef VectorConstant,
1661                                     LLVMValueRef ElementValueConstant,
1662                                     LLVMValueRef IndexConstant);
1663 LLVMValueRef LLVMConstShuffleVector(LLVMValueRef VectorAConstant,
1664                                     LLVMValueRef VectorBConstant,
1665                                     LLVMValueRef MaskConstant);
1666 LLVMValueRef LLVMConstExtractValue(LLVMValueRef AggConstant, unsigned *IdxList,
1667                                    unsigned NumIdx);
1668 LLVMValueRef LLVMConstInsertValue(LLVMValueRef AggConstant,
1669                                   LLVMValueRef ElementValueConstant,
1670                                   unsigned *IdxList, unsigned NumIdx);
1671 LLVMValueRef LLVMConstInlineAsm(LLVMTypeRef Ty,
1672                                 const char *AsmString, const char *Constraints,
1673                                 LLVMBool HasSideEffects, LLVMBool IsAlignStack);
1674 LLVMValueRef LLVMBlockAddress(LLVMValueRef F, LLVMBasicBlockRef BB);
1675 
1676 /**
1677  * @}
1678  */
1679 
1680 /**
1681  * @defgroup LLVMCCoreValueConstantGlobals Global Values
1682  *
1683  * This group contains functions that operate on global values. Functions in
1684  * this group relate to functions in the llvm::GlobalValue class tree.
1685  *
1686  * @see llvm::GlobalValue
1687  *
1688  * @{
1689  */
1690 
1691 LLVMModuleRef LLVMGetGlobalParent(LLVMValueRef Global);
1692 LLVMBool LLVMIsDeclaration(LLVMValueRef Global);
1693 LLVMLinkage LLVMGetLinkage(LLVMValueRef Global);
1694 void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage);
1695 const char *LLVMGetSection(LLVMValueRef Global);
1696 void LLVMSetSection(LLVMValueRef Global, const char *Section);
1697 LLVMVisibility LLVMGetVisibility(LLVMValueRef Global);
1698 void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz);
1699 LLVMDLLStorageClass LLVMGetDLLStorageClass(LLVMValueRef Global);
1700 void LLVMSetDLLStorageClass(LLVMValueRef Global, LLVMDLLStorageClass Class);
1701 LLVMBool LLVMHasUnnamedAddr(LLVMValueRef Global);
1702 void LLVMSetUnnamedAddr(LLVMValueRef Global, LLVMBool HasUnnamedAddr);
1703 
1704 /**
1705  * @defgroup LLVMCCoreValueWithAlignment Values with alignment
1706  *
1707  * Functions in this group only apply to values with alignment, i.e.
1708  * global variables, load and store instructions.
1709  */
1710 
1711 /**
1712  * Obtain the preferred alignment of the value.
1713  * @see llvm::AllocaInst::getAlignment()
1714  * @see llvm::LoadInst::getAlignment()
1715  * @see llvm::StoreInst::getAlignment()
1716  * @see llvm::GlobalValue::getAlignment()
1717  */
1718 unsigned LLVMGetAlignment(LLVMValueRef V);
1719 
1720 /**
1721  * Set the preferred alignment of the value.
1722  * @see llvm::AllocaInst::setAlignment()
1723  * @see llvm::LoadInst::setAlignment()
1724  * @see llvm::StoreInst::setAlignment()
1725  * @see llvm::GlobalValue::setAlignment()
1726  */
1727 void LLVMSetAlignment(LLVMValueRef V, unsigned Bytes);
1728 
1729 /**
1730   * @}
1731   */
1732 
1733 /**
1734  * @defgroup LLVMCoreValueConstantGlobalVariable Global Variables
1735  *
1736  * This group contains functions that operate on global variable values.
1737  *
1738  * @see llvm::GlobalVariable
1739  *
1740  * @{
1741  */
1742 LLVMValueRef LLVMAddGlobal(LLVMModuleRef M, LLVMTypeRef Ty, const char *Name);
1743 LLVMValueRef LLVMAddGlobalInAddressSpace(LLVMModuleRef M, LLVMTypeRef Ty,
1744                                          const char *Name,
1745                                          unsigned AddressSpace);
1746 LLVMValueRef LLVMGetNamedGlobal(LLVMModuleRef M, const char *Name);
1747 LLVMValueRef LLVMGetFirstGlobal(LLVMModuleRef M);
1748 LLVMValueRef LLVMGetLastGlobal(LLVMModuleRef M);
1749 LLVMValueRef LLVMGetNextGlobal(LLVMValueRef GlobalVar);
1750 LLVMValueRef LLVMGetPreviousGlobal(LLVMValueRef GlobalVar);
1751 void LLVMDeleteGlobal(LLVMValueRef GlobalVar);
1752 LLVMValueRef LLVMGetInitializer(LLVMValueRef GlobalVar);
1753 void LLVMSetInitializer(LLVMValueRef GlobalVar, LLVMValueRef ConstantVal);
1754 LLVMBool LLVMIsThreadLocal(LLVMValueRef GlobalVar);
1755 void LLVMSetThreadLocal(LLVMValueRef GlobalVar, LLVMBool IsThreadLocal);
1756 LLVMBool LLVMIsGlobalConstant(LLVMValueRef GlobalVar);
1757 void LLVMSetGlobalConstant(LLVMValueRef GlobalVar, LLVMBool IsConstant);
1758 LLVMThreadLocalMode LLVMGetThreadLocalMode(LLVMValueRef GlobalVar);
1759 void LLVMSetThreadLocalMode(LLVMValueRef GlobalVar, LLVMThreadLocalMode Mode);
1760 LLVMBool LLVMIsExternallyInitialized(LLVMValueRef GlobalVar);
1761 void LLVMSetExternallyInitialized(LLVMValueRef GlobalVar, LLVMBool IsExtInit);
1762 
1763 /**
1764  * @}
1765  */
1766 
1767 /**
1768  * @defgroup LLVMCoreValueConstantGlobalAlias Global Aliases
1769  *
1770  * This group contains function that operate on global alias values.
1771  *
1772  * @see llvm::GlobalAlias
1773  *
1774  * @{
1775  */
1776 LLVMValueRef LLVMAddAlias(LLVMModuleRef M, LLVMTypeRef Ty, LLVMValueRef Aliasee,
1777                           const char *Name);
1778 
1779 /**
1780  * @}
1781  */
1782 
1783 /**
1784  * @defgroup LLVMCCoreValueFunction Function values
1785  *
1786  * Functions in this group operate on LLVMValueRef instances that
1787  * correspond to llvm::Function instances.
1788  *
1789  * @see llvm::Function
1790  *
1791  * @{
1792  */
1793 
1794 /**
1795  * Remove a function from its containing module and deletes it.
1796  *
1797  * @see llvm::Function::eraseFromParent()
1798  */
1799 void LLVMDeleteFunction(LLVMValueRef Fn);
1800 
1801 /**
1802  * Obtain the personality function attached to the function.
1803  *
1804  * @see llvm::Function::getPersonalityFn()
1805  */
1806 LLVMValueRef LLVMGetPersonalityFn(LLVMValueRef Fn);
1807 
1808 /**
1809  * Set the personality function attached to the function.
1810  *
1811  * @see llvm::Function::setPersonalityFn()
1812  */
1813 void LLVMSetPersonalityFn(LLVMValueRef Fn, LLVMValueRef PersonalityFn);
1814 
1815 /**
1816  * Obtain the ID number from a function instance.
1817  *
1818  * @see llvm::Function::getIntrinsicID()
1819  */
1820 unsigned LLVMGetIntrinsicID(LLVMValueRef Fn);
1821 
1822 /**
1823  * Obtain the calling function of a function.
1824  *
1825  * The returned value corresponds to the LLVMCallConv enumeration.
1826  *
1827  * @see llvm::Function::getCallingConv()
1828  */
1829 unsigned LLVMGetFunctionCallConv(LLVMValueRef Fn);
1830 
1831 /**
1832  * Set the calling convention of a function.
1833  *
1834  * @see llvm::Function::setCallingConv()
1835  *
1836  * @param Fn Function to operate on
1837  * @param CC LLVMCallConv to set calling convention to
1838  */
1839 void LLVMSetFunctionCallConv(LLVMValueRef Fn, unsigned CC);
1840 
1841 /**
1842  * Obtain the name of the garbage collector to use during code
1843  * generation.
1844  *
1845  * @see llvm::Function::getGC()
1846  */
1847 const char *LLVMGetGC(LLVMValueRef Fn);
1848 
1849 /**
1850  * Define the garbage collector to use during code generation.
1851  *
1852  * @see llvm::Function::setGC()
1853  */
1854 void LLVMSetGC(LLVMValueRef Fn, const char *Name);
1855 
1856 /**
1857  * Add an attribute to a function.
1858  *
1859  * @see llvm::Function::addAttribute()
1860  */
1861 void LLVMAddFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA);
1862 
1863 /**
1864  * Add a target-dependent attribute to a function
1865  * @see llvm::AttrBuilder::addAttribute()
1866  */
1867 void LLVMAddTargetDependentFunctionAttr(LLVMValueRef Fn, const char *A,
1868                                         const char *V);
1869 
1870 /**
1871  * Obtain an attribute from a function.
1872  *
1873  * @see llvm::Function::getAttributes()
1874  */
1875 LLVMAttribute LLVMGetFunctionAttr(LLVMValueRef Fn);
1876 
1877 /**
1878  * Remove an attribute from a function.
1879  */
1880 void LLVMRemoveFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA);
1881 
1882 /**
1883  * @defgroup LLVMCCoreValueFunctionParameters Function Parameters
1884  *
1885  * Functions in this group relate to arguments/parameters on functions.
1886  *
1887  * Functions in this group expect LLVMValueRef instances that correspond
1888  * to llvm::Function instances.
1889  *
1890  * @{
1891  */
1892 
1893 /**
1894  * Obtain the number of parameters in a function.
1895  *
1896  * @see llvm::Function::arg_size()
1897  */
1898 unsigned LLVMCountParams(LLVMValueRef Fn);
1899 
1900 /**
1901  * Obtain the parameters in a function.
1902  *
1903  * The takes a pointer to a pre-allocated array of LLVMValueRef that is
1904  * at least LLVMCountParams() long. This array will be filled with
1905  * LLVMValueRef instances which correspond to the parameters the
1906  * function receives. Each LLVMValueRef corresponds to a llvm::Argument
1907  * instance.
1908  *
1909  * @see llvm::Function::arg_begin()
1910  */
1911 void LLVMGetParams(LLVMValueRef Fn, LLVMValueRef *Params);
1912 
1913 /**
1914  * Obtain the parameter at the specified index.
1915  *
1916  * Parameters are indexed from 0.
1917  *
1918  * @see llvm::Function::arg_begin()
1919  */
1920 LLVMValueRef LLVMGetParam(LLVMValueRef Fn, unsigned Index);
1921 
1922 /**
1923  * Obtain the function to which this argument belongs.
1924  *
1925  * Unlike other functions in this group, this one takes an LLVMValueRef
1926  * that corresponds to a llvm::Attribute.
1927  *
1928  * The returned LLVMValueRef is the llvm::Function to which this
1929  * argument belongs.
1930  */
1931 LLVMValueRef LLVMGetParamParent(LLVMValueRef Inst);
1932 
1933 /**
1934  * Obtain the first parameter to a function.
1935  *
1936  * @see llvm::Function::arg_begin()
1937  */
1938 LLVMValueRef LLVMGetFirstParam(LLVMValueRef Fn);
1939 
1940 /**
1941  * Obtain the last parameter to a function.
1942  *
1943  * @see llvm::Function::arg_end()
1944  */
1945 LLVMValueRef LLVMGetLastParam(LLVMValueRef Fn);
1946 
1947 /**
1948  * Obtain the next parameter to a function.
1949  *
1950  * This takes an LLVMValueRef obtained from LLVMGetFirstParam() (which is
1951  * actually a wrapped iterator) and obtains the next parameter from the
1952  * underlying iterator.
1953  */
1954 LLVMValueRef LLVMGetNextParam(LLVMValueRef Arg);
1955 
1956 /**
1957  * Obtain the previous parameter to a function.
1958  *
1959  * This is the opposite of LLVMGetNextParam().
1960  */
1961 LLVMValueRef LLVMGetPreviousParam(LLVMValueRef Arg);
1962 
1963 /**
1964  * Add an attribute to a function argument.
1965  *
1966  * @see llvm::Argument::addAttr()
1967  */
1968 void LLVMAddAttribute(LLVMValueRef Arg, LLVMAttribute PA);
1969 
1970 /**
1971  * Remove an attribute from a function argument.
1972  *
1973  * @see llvm::Argument::removeAttr()
1974  */
1975 void LLVMRemoveAttribute(LLVMValueRef Arg, LLVMAttribute PA);
1976 
1977 /**
1978  * Get an attribute from a function argument.
1979  */
1980 LLVMAttribute LLVMGetAttribute(LLVMValueRef Arg);
1981 
1982 /**
1983  * Set the alignment for a function parameter.
1984  *
1985  * @see llvm::Argument::addAttr()
1986  * @see llvm::AttrBuilder::addAlignmentAttr()
1987  */
1988 void LLVMSetParamAlignment(LLVMValueRef Arg, unsigned align);
1989 
1990 /**
1991  * @}
1992  */
1993 
1994 /**
1995  * @}
1996  */
1997 
1998 /**
1999  * @}
2000  */
2001 
2002 /**
2003  * @}
2004  */
2005 
2006 /**
2007  * @defgroup LLVMCCoreValueMetadata Metadata
2008  *
2009  * @{
2010  */
2011 
2012 /**
2013  * Obtain a MDString value from a context.
2014  *
2015  * The returned instance corresponds to the llvm::MDString class.
2016  *
2017  * The instance is specified by string data of a specified length. The
2018  * string content is copied, so the backing memory can be freed after
2019  * this function returns.
2020  */
2021 LLVMValueRef LLVMMDStringInContext(LLVMContextRef C, const char *Str,
2022                                    unsigned SLen);
2023 
2024 /**
2025  * Obtain a MDString value from the global context.
2026  */
2027 LLVMValueRef LLVMMDString(const char *Str, unsigned SLen);
2028 
2029 /**
2030  * Obtain a MDNode value from a context.
2031  *
2032  * The returned value corresponds to the llvm::MDNode class.
2033  */
2034 LLVMValueRef LLVMMDNodeInContext(LLVMContextRef C, LLVMValueRef *Vals,
2035                                  unsigned Count);
2036 
2037 /**
2038  * Obtain a MDNode value from the global context.
2039  */
2040 LLVMValueRef LLVMMDNode(LLVMValueRef *Vals, unsigned Count);
2041 
2042 /**
2043  * Obtain the underlying string from a MDString value.
2044  *
2045  * @param V Instance to obtain string from.
2046  * @param Len Memory address which will hold length of returned string.
2047  * @return String data in MDString.
2048  */
2049 const char  *LLVMGetMDString(LLVMValueRef V, unsigned* Len);
2050 
2051 /**
2052  * Obtain the number of operands from an MDNode value.
2053  *
2054  * @param V MDNode to get number of operands from.
2055  * @return Number of operands of the MDNode.
2056  */
2057 unsigned LLVMGetMDNodeNumOperands(LLVMValueRef V);
2058 
2059 /**
2060  * Obtain the given MDNode's operands.
2061  *
2062  * The passed LLVMValueRef pointer should point to enough memory to hold all of
2063  * the operands of the given MDNode (see LLVMGetMDNodeNumOperands) as
2064  * LLVMValueRefs. This memory will be populated with the LLVMValueRefs of the
2065  * MDNode's operands.
2066  *
2067  * @param V MDNode to get the operands from.
2068  * @param Dest Destination array for operands.
2069  */
2070 void LLVMGetMDNodeOperands(LLVMValueRef V, LLVMValueRef *Dest);
2071 
2072 /**
2073  * @}
2074  */
2075 
2076 /**
2077  * @defgroup LLVMCCoreValueBasicBlock Basic Block
2078  *
2079  * A basic block represents a single entry single exit section of code.
2080  * Basic blocks contain a list of instructions which form the body of
2081  * the block.
2082  *
2083  * Basic blocks belong to functions. They have the type of label.
2084  *
2085  * Basic blocks are themselves values. However, the C API models them as
2086  * LLVMBasicBlockRef.
2087  *
2088  * @see llvm::BasicBlock
2089  *
2090  * @{
2091  */
2092 
2093 /**
2094  * Convert a basic block instance to a value type.
2095  */
2096 LLVMValueRef LLVMBasicBlockAsValue(LLVMBasicBlockRef BB);
2097 
2098 /**
2099  * Determine whether an LLVMValueRef is itself a basic block.
2100  */
2101 LLVMBool LLVMValueIsBasicBlock(LLVMValueRef Val);
2102 
2103 /**
2104  * Convert an LLVMValueRef to an LLVMBasicBlockRef instance.
2105  */
2106 LLVMBasicBlockRef LLVMValueAsBasicBlock(LLVMValueRef Val);
2107 
2108 /**
2109  * Obtain the function to which a basic block belongs.
2110  *
2111  * @see llvm::BasicBlock::getParent()
2112  */
2113 LLVMValueRef LLVMGetBasicBlockParent(LLVMBasicBlockRef BB);
2114 
2115 /**
2116  * Obtain the terminator instruction for a basic block.
2117  *
2118  * If the basic block does not have a terminator (it is not well-formed
2119  * if it doesn't), then NULL is returned.
2120  *
2121  * The returned LLVMValueRef corresponds to a llvm::TerminatorInst.
2122  *
2123  * @see llvm::BasicBlock::getTerminator()
2124  */
2125 LLVMValueRef LLVMGetBasicBlockTerminator(LLVMBasicBlockRef BB);
2126 
2127 /**
2128  * Obtain the number of basic blocks in a function.
2129  *
2130  * @param Fn Function value to operate on.
2131  */
2132 unsigned LLVMCountBasicBlocks(LLVMValueRef Fn);
2133 
2134 /**
2135  * Obtain all of the basic blocks in a function.
2136  *
2137  * This operates on a function value. The BasicBlocks parameter is a
2138  * pointer to a pre-allocated array of LLVMBasicBlockRef of at least
2139  * LLVMCountBasicBlocks() in length. This array is populated with
2140  * LLVMBasicBlockRef instances.
2141  */
2142 void LLVMGetBasicBlocks(LLVMValueRef Fn, LLVMBasicBlockRef *BasicBlocks);
2143 
2144 /**
2145  * Obtain the first basic block in a function.
2146  *
2147  * The returned basic block can be used as an iterator. You will likely
2148  * eventually call into LLVMGetNextBasicBlock() with it.
2149  *
2150  * @see llvm::Function::begin()
2151  */
2152 LLVMBasicBlockRef LLVMGetFirstBasicBlock(LLVMValueRef Fn);
2153 
2154 /**
2155  * Obtain the last basic block in a function.
2156  *
2157  * @see llvm::Function::end()
2158  */
2159 LLVMBasicBlockRef LLVMGetLastBasicBlock(LLVMValueRef Fn);
2160 
2161 /**
2162  * Advance a basic block iterator.
2163  */
2164 LLVMBasicBlockRef LLVMGetNextBasicBlock(LLVMBasicBlockRef BB);
2165 
2166 /**
2167  * Go backwards in a basic block iterator.
2168  */
2169 LLVMBasicBlockRef LLVMGetPreviousBasicBlock(LLVMBasicBlockRef BB);
2170 
2171 /**
2172  * Obtain the basic block that corresponds to the entry point of a
2173  * function.
2174  *
2175  * @see llvm::Function::getEntryBlock()
2176  */
2177 LLVMBasicBlockRef LLVMGetEntryBasicBlock(LLVMValueRef Fn);
2178 
2179 /**
2180  * Append a basic block to the end of a function.
2181  *
2182  * @see llvm::BasicBlock::Create()
2183  */
2184 LLVMBasicBlockRef LLVMAppendBasicBlockInContext(LLVMContextRef C,
2185                                                 LLVMValueRef Fn,
2186                                                 const char *Name);
2187 
2188 /**
2189  * Append a basic block to the end of a function using the global
2190  * context.
2191  *
2192  * @see llvm::BasicBlock::Create()
2193  */
2194 LLVMBasicBlockRef LLVMAppendBasicBlock(LLVMValueRef Fn, const char *Name);
2195 
2196 /**
2197  * Insert a basic block in a function before another basic block.
2198  *
2199  * The function to add to is determined by the function of the
2200  * passed basic block.
2201  *
2202  * @see llvm::BasicBlock::Create()
2203  */
2204 LLVMBasicBlockRef LLVMInsertBasicBlockInContext(LLVMContextRef C,
2205                                                 LLVMBasicBlockRef BB,
2206                                                 const char *Name);
2207 
2208 /**
2209  * Insert a basic block in a function using the global context.
2210  *
2211  * @see llvm::BasicBlock::Create()
2212  */
2213 LLVMBasicBlockRef LLVMInsertBasicBlock(LLVMBasicBlockRef InsertBeforeBB,
2214                                        const char *Name);
2215 
2216 /**
2217  * Remove a basic block from a function and delete it.
2218  *
2219  * This deletes the basic block from its containing function and deletes
2220  * the basic block itself.
2221  *
2222  * @see llvm::BasicBlock::eraseFromParent()
2223  */
2224 void LLVMDeleteBasicBlock(LLVMBasicBlockRef BB);
2225 
2226 /**
2227  * Remove a basic block from a function.
2228  *
2229  * This deletes the basic block from its containing function but keep
2230  * the basic block alive.
2231  *
2232  * @see llvm::BasicBlock::removeFromParent()
2233  */
2234 void LLVMRemoveBasicBlockFromParent(LLVMBasicBlockRef BB);
2235 
2236 /**
2237  * Move a basic block to before another one.
2238  *
2239  * @see llvm::BasicBlock::moveBefore()
2240  */
2241 void LLVMMoveBasicBlockBefore(LLVMBasicBlockRef BB, LLVMBasicBlockRef MovePos);
2242 
2243 /**
2244  * Move a basic block to after another one.
2245  *
2246  * @see llvm::BasicBlock::moveAfter()
2247  */
2248 void LLVMMoveBasicBlockAfter(LLVMBasicBlockRef BB, LLVMBasicBlockRef MovePos);
2249 
2250 /**
2251  * Obtain the first instruction in a basic block.
2252  *
2253  * The returned LLVMValueRef corresponds to a llvm::Instruction
2254  * instance.
2255  */
2256 LLVMValueRef LLVMGetFirstInstruction(LLVMBasicBlockRef BB);
2257 
2258 /**
2259  * Obtain the last instruction in a basic block.
2260  *
2261  * The returned LLVMValueRef corresponds to an LLVM:Instruction.
2262  */
2263 LLVMValueRef LLVMGetLastInstruction(LLVMBasicBlockRef BB);
2264 
2265 /**
2266  * @}
2267  */
2268 
2269 /**
2270  * @defgroup LLVMCCoreValueInstruction Instructions
2271  *
2272  * Functions in this group relate to the inspection and manipulation of
2273  * individual instructions.
2274  *
2275  * In the C++ API, an instruction is modeled by llvm::Instruction. This
2276  * class has a large number of descendents. llvm::Instruction is a
2277  * llvm::Value and in the C API, instructions are modeled by
2278  * LLVMValueRef.
2279  *
2280  * This group also contains sub-groups which operate on specific
2281  * llvm::Instruction types, e.g. llvm::CallInst.
2282  *
2283  * @{
2284  */
2285 
2286 /**
2287  * Determine whether an instruction has any metadata attached.
2288  */
2289 int LLVMHasMetadata(LLVMValueRef Val);
2290 
2291 /**
2292  * Return metadata associated with an instruction value.
2293  */
2294 LLVMValueRef LLVMGetMetadata(LLVMValueRef Val, unsigned KindID);
2295 
2296 /**
2297  * Set metadata associated with an instruction value.
2298  */
2299 void LLVMSetMetadata(LLVMValueRef Val, unsigned KindID, LLVMValueRef Node);
2300 
2301 /**
2302  * Obtain the basic block to which an instruction belongs.
2303  *
2304  * @see llvm::Instruction::getParent()
2305  */
2306 LLVMBasicBlockRef LLVMGetInstructionParent(LLVMValueRef Inst);
2307 
2308 /**
2309  * Obtain the instruction that occurs after the one specified.
2310  *
2311  * The next instruction will be from the same basic block.
2312  *
2313  * If this is the last instruction in a basic block, NULL will be
2314  * returned.
2315  */
2316 LLVMValueRef LLVMGetNextInstruction(LLVMValueRef Inst);
2317 
2318 /**
2319  * Obtain the instruction that occurred before this one.
2320  *
2321  * If the instruction is the first instruction in a basic block, NULL
2322  * will be returned.
2323  */
2324 LLVMValueRef LLVMGetPreviousInstruction(LLVMValueRef Inst);
2325 
2326 /**
2327  * Remove and delete an instruction.
2328  *
2329  * The instruction specified is removed from its containing building
2330  * block and then deleted.
2331  *
2332  * @see llvm::Instruction::eraseFromParent()
2333  */
2334 void LLVMInstructionEraseFromParent(LLVMValueRef Inst);
2335 
2336 /**
2337  * Obtain the code opcode for an individual instruction.
2338  *
2339  * @see llvm::Instruction::getOpCode()
2340  */
2341 LLVMOpcode LLVMGetInstructionOpcode(LLVMValueRef Inst);
2342 
2343 /**
2344  * Obtain the predicate of an instruction.
2345  *
2346  * This is only valid for instructions that correspond to llvm::ICmpInst
2347  * or llvm::ConstantExpr whose opcode is llvm::Instruction::ICmp.
2348  *
2349  * @see llvm::ICmpInst::getPredicate()
2350  */
2351 LLVMIntPredicate LLVMGetICmpPredicate(LLVMValueRef Inst);
2352 
2353 /**
2354  * Obtain the float predicate of an instruction.
2355  *
2356  * This is only valid for instructions that correspond to llvm::FCmpInst
2357  * or llvm::ConstantExpr whose opcode is llvm::Instruction::FCmp.
2358  *
2359  * @see llvm::FCmpInst::getPredicate()
2360  */
2361 LLVMRealPredicate LLVMGetFCmpPredicate(LLVMValueRef Inst);
2362 
2363 /**
2364  * Create a copy of 'this' instruction that is identical in all ways
2365  * except the following:
2366  *   * The instruction has no parent
2367  *   * The instruction has no name
2368  *
2369  * @see llvm::Instruction::clone()
2370  */
2371 LLVMValueRef LLVMInstructionClone(LLVMValueRef Inst);
2372 
2373 /**
2374  * @defgroup LLVMCCoreValueInstructionCall Call Sites and Invocations
2375  *
2376  * Functions in this group apply to instructions that refer to call
2377  * sites and invocations. These correspond to C++ types in the
2378  * llvm::CallInst class tree.
2379  *
2380  * @{
2381  */
2382 
2383 /**
2384  * Set the calling convention for a call instruction.
2385  *
2386  * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
2387  * llvm::InvokeInst.
2388  *
2389  * @see llvm::CallInst::setCallingConv()
2390  * @see llvm::InvokeInst::setCallingConv()
2391  */
2392 void LLVMSetInstructionCallConv(LLVMValueRef Instr, unsigned CC);
2393 
2394 /**
2395  * Obtain the calling convention for a call instruction.
2396  *
2397  * This is the opposite of LLVMSetInstructionCallConv(). Reads its
2398  * usage.
2399  *
2400  * @see LLVMSetInstructionCallConv()
2401  */
2402 unsigned LLVMGetInstructionCallConv(LLVMValueRef Instr);
2403 
2404 
2405 void LLVMAddInstrAttribute(LLVMValueRef Instr, unsigned index, LLVMAttribute);
2406 void LLVMRemoveInstrAttribute(LLVMValueRef Instr, unsigned index,
2407                               LLVMAttribute);
2408 void LLVMSetInstrParamAlignment(LLVMValueRef Instr, unsigned index,
2409                                 unsigned align);
2410 
2411 /**
2412  * Obtain whether a call instruction is a tail call.
2413  *
2414  * This only works on llvm::CallInst instructions.
2415  *
2416  * @see llvm::CallInst::isTailCall()
2417  */
2418 LLVMBool LLVMIsTailCall(LLVMValueRef CallInst);
2419 
2420 /**
2421  * Set whether a call instruction is a tail call.
2422  *
2423  * This only works on llvm::CallInst instructions.
2424  *
2425  * @see llvm::CallInst::setTailCall()
2426  */
2427 void LLVMSetTailCall(LLVMValueRef CallInst, LLVMBool IsTailCall);
2428 
2429 /**
2430  * @}
2431  */
2432 
2433 /**
2434  * @defgroup LLVMCCoreValueInstructionTerminator Terminators
2435  *
2436  * Functions in this group only apply to instructions that map to
2437  * llvm::TerminatorInst instances.
2438  *
2439  * @{
2440  */
2441 
2442 /**
2443  * Return the number of successors that this terminator has.
2444  *
2445  * @see llvm::TerminatorInst::getNumSuccessors
2446  */
2447 unsigned LLVMGetNumSuccessors(LLVMValueRef Term);
2448 
2449 /**
2450  * Return the specified successor.
2451  *
2452  * @see llvm::TerminatorInst::getSuccessor
2453  */
2454 LLVMBasicBlockRef LLVMGetSuccessor(LLVMValueRef Term, unsigned i);
2455 
2456 /**
2457  * Update the specified successor to point at the provided block.
2458  *
2459  * @see llvm::TerminatorInst::setSuccessor
2460  */
2461 void LLVMSetSuccessor(LLVMValueRef Term, unsigned i, LLVMBasicBlockRef block);
2462 
2463 /**
2464  * Return if a branch is conditional.
2465  *
2466  * This only works on llvm::BranchInst instructions.
2467  *
2468  * @see llvm::BranchInst::isConditional
2469  */
2470 LLVMBool LLVMIsConditional(LLVMValueRef Branch);
2471 
2472 /**
2473  * Return the condition of a branch instruction.
2474  *
2475  * This only works on llvm::BranchInst instructions.
2476  *
2477  * @see llvm::BranchInst::getCondition
2478  */
2479 LLVMValueRef LLVMGetCondition(LLVMValueRef Branch);
2480 
2481 /**
2482  * Set the condition of a branch instruction.
2483  *
2484  * This only works on llvm::BranchInst instructions.
2485  *
2486  * @see llvm::BranchInst::setCondition
2487  */
2488 void LLVMSetCondition(LLVMValueRef Branch, LLVMValueRef Cond);
2489 
2490 /**
2491  * Obtain the default destination basic block of a switch instruction.
2492  *
2493  * This only works on llvm::SwitchInst instructions.
2494  *
2495  * @see llvm::SwitchInst::getDefaultDest()
2496  */
2497 LLVMBasicBlockRef LLVMGetSwitchDefaultDest(LLVMValueRef SwitchInstr);
2498 
2499 /**
2500  * @}
2501  */
2502 
2503 /**
2504  * @defgroup LLVMCCoreValueInstructionPHINode PHI Nodes
2505  *
2506  * Functions in this group only apply to instructions that map to
2507  * llvm::PHINode instances.
2508  *
2509  * @{
2510  */
2511 
2512 /**
2513  * Add an incoming value to the end of a PHI list.
2514  */
2515 void LLVMAddIncoming(LLVMValueRef PhiNode, LLVMValueRef *IncomingValues,
2516                      LLVMBasicBlockRef *IncomingBlocks, unsigned Count);
2517 
2518 /**
2519  * Obtain the number of incoming basic blocks to a PHI node.
2520  */
2521 unsigned LLVMCountIncoming(LLVMValueRef PhiNode);
2522 
2523 /**
2524  * Obtain an incoming value to a PHI node as an LLVMValueRef.
2525  */
2526 LLVMValueRef LLVMGetIncomingValue(LLVMValueRef PhiNode, unsigned Index);
2527 
2528 /**
2529  * Obtain an incoming value to a PHI node as an LLVMBasicBlockRef.
2530  */
2531 LLVMBasicBlockRef LLVMGetIncomingBlock(LLVMValueRef PhiNode, unsigned Index);
2532 
2533 /**
2534  * @}
2535  */
2536 
2537 /**
2538  * @}
2539  */
2540 
2541 /**
2542  * @}
2543  */
2544 
2545 /**
2546  * @defgroup LLVMCCoreInstructionBuilder Instruction Builders
2547  *
2548  * An instruction builder represents a point within a basic block and is
2549  * the exclusive means of building instructions using the C interface.
2550  *
2551  * @{
2552  */
2553 
2554 LLVMBuilderRef LLVMCreateBuilderInContext(LLVMContextRef C);
2555 LLVMBuilderRef LLVMCreateBuilder(void);
2556 void LLVMPositionBuilder(LLVMBuilderRef Builder, LLVMBasicBlockRef Block,
2557                          LLVMValueRef Instr);
2558 void LLVMPositionBuilderBefore(LLVMBuilderRef Builder, LLVMValueRef Instr);
2559 void LLVMPositionBuilderAtEnd(LLVMBuilderRef Builder, LLVMBasicBlockRef Block);
2560 LLVMBasicBlockRef LLVMGetInsertBlock(LLVMBuilderRef Builder);
2561 void LLVMClearInsertionPosition(LLVMBuilderRef Builder);
2562 void LLVMInsertIntoBuilder(LLVMBuilderRef Builder, LLVMValueRef Instr);
2563 void LLVMInsertIntoBuilderWithName(LLVMBuilderRef Builder, LLVMValueRef Instr,
2564                                    const char *Name);
2565 void LLVMDisposeBuilder(LLVMBuilderRef Builder);
2566 
2567 /* Metadata */
2568 void LLVMSetCurrentDebugLocation(LLVMBuilderRef Builder, LLVMValueRef L);
2569 LLVMValueRef LLVMGetCurrentDebugLocation(LLVMBuilderRef Builder);
2570 void LLVMSetInstDebugLocation(LLVMBuilderRef Builder, LLVMValueRef Inst);
2571 
2572 /* Terminators */
2573 LLVMValueRef LLVMBuildRetVoid(LLVMBuilderRef);
2574 LLVMValueRef LLVMBuildRet(LLVMBuilderRef, LLVMValueRef V);
2575 LLVMValueRef LLVMBuildAggregateRet(LLVMBuilderRef, LLVMValueRef *RetVals,
2576                                    unsigned N);
2577 LLVMValueRef LLVMBuildBr(LLVMBuilderRef, LLVMBasicBlockRef Dest);
2578 LLVMValueRef LLVMBuildCondBr(LLVMBuilderRef, LLVMValueRef If,
2579                              LLVMBasicBlockRef Then, LLVMBasicBlockRef Else);
2580 LLVMValueRef LLVMBuildSwitch(LLVMBuilderRef, LLVMValueRef V,
2581                              LLVMBasicBlockRef Else, unsigned NumCases);
2582 LLVMValueRef LLVMBuildIndirectBr(LLVMBuilderRef B, LLVMValueRef Addr,
2583                                  unsigned NumDests);
2584 LLVMValueRef LLVMBuildInvoke(LLVMBuilderRef, LLVMValueRef Fn,
2585                              LLVMValueRef *Args, unsigned NumArgs,
2586                              LLVMBasicBlockRef Then, LLVMBasicBlockRef Catch,
2587                              const char *Name);
2588 LLVMValueRef LLVMBuildLandingPad(LLVMBuilderRef B, LLVMTypeRef Ty,
2589                                  LLVMValueRef PersFn, unsigned NumClauses,
2590                                  const char *Name);
2591 LLVMValueRef LLVMBuildResume(LLVMBuilderRef B, LLVMValueRef Exn);
2592 LLVMValueRef LLVMBuildUnreachable(LLVMBuilderRef);
2593 
2594 /* Add a case to the switch instruction */
2595 void LLVMAddCase(LLVMValueRef Switch, LLVMValueRef OnVal,
2596                  LLVMBasicBlockRef Dest);
2597 
2598 /* Add a destination to the indirectbr instruction */
2599 void LLVMAddDestination(LLVMValueRef IndirectBr, LLVMBasicBlockRef Dest);
2600 
2601 /* Add a catch or filter clause to the landingpad instruction */
2602 void LLVMAddClause(LLVMValueRef LandingPad, LLVMValueRef ClauseVal);
2603 
2604 /* Set the 'cleanup' flag in the landingpad instruction */
2605 void LLVMSetCleanup(LLVMValueRef LandingPad, LLVMBool Val);
2606 
2607 /* Arithmetic */
2608 LLVMValueRef LLVMBuildAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2609                           const char *Name);
2610 LLVMValueRef LLVMBuildNSWAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2611                              const char *Name);
2612 LLVMValueRef LLVMBuildNUWAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2613                              const char *Name);
2614 LLVMValueRef LLVMBuildFAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2615                            const char *Name);
2616 LLVMValueRef LLVMBuildSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2617                           const char *Name);
2618 LLVMValueRef LLVMBuildNSWSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2619                              const char *Name);
2620 LLVMValueRef LLVMBuildNUWSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2621                              const char *Name);
2622 LLVMValueRef LLVMBuildFSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2623                            const char *Name);
2624 LLVMValueRef LLVMBuildMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2625                           const char *Name);
2626 LLVMValueRef LLVMBuildNSWMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2627                              const char *Name);
2628 LLVMValueRef LLVMBuildNUWMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2629                              const char *Name);
2630 LLVMValueRef LLVMBuildFMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2631                            const char *Name);
2632 LLVMValueRef LLVMBuildUDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2633                            const char *Name);
2634 LLVMValueRef LLVMBuildSDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2635                            const char *Name);
2636 LLVMValueRef LLVMBuildExactSDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2637                                 const char *Name);
2638 LLVMValueRef LLVMBuildFDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2639                            const char *Name);
2640 LLVMValueRef LLVMBuildURem(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2641                            const char *Name);
2642 LLVMValueRef LLVMBuildSRem(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2643                            const char *Name);
2644 LLVMValueRef LLVMBuildFRem(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2645                            const char *Name);
2646 LLVMValueRef LLVMBuildShl(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2647                            const char *Name);
2648 LLVMValueRef LLVMBuildLShr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2649                            const char *Name);
2650 LLVMValueRef LLVMBuildAShr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2651                            const char *Name);
2652 LLVMValueRef LLVMBuildAnd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2653                           const char *Name);
2654 LLVMValueRef LLVMBuildOr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2655                           const char *Name);
2656 LLVMValueRef LLVMBuildXor(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
2657                           const char *Name);
2658 LLVMValueRef LLVMBuildBinOp(LLVMBuilderRef B, LLVMOpcode Op,
2659                             LLVMValueRef LHS, LLVMValueRef RHS,
2660                             const char *Name);
2661 LLVMValueRef LLVMBuildNeg(LLVMBuilderRef, LLVMValueRef V, const char *Name);
2662 LLVMValueRef LLVMBuildNSWNeg(LLVMBuilderRef B, LLVMValueRef V,
2663                              const char *Name);
2664 LLVMValueRef LLVMBuildNUWNeg(LLVMBuilderRef B, LLVMValueRef V,
2665                              const char *Name);
2666 LLVMValueRef LLVMBuildFNeg(LLVMBuilderRef, LLVMValueRef V, const char *Name);
2667 LLVMValueRef LLVMBuildNot(LLVMBuilderRef, LLVMValueRef V, const char *Name);
2668 
2669 /* Memory */
2670 LLVMValueRef LLVMBuildMalloc(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
2671 LLVMValueRef LLVMBuildArrayMalloc(LLVMBuilderRef, LLVMTypeRef Ty,
2672                                   LLVMValueRef Val, const char *Name);
2673 LLVMValueRef LLVMBuildAlloca(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
2674 LLVMValueRef LLVMBuildArrayAlloca(LLVMBuilderRef, LLVMTypeRef Ty,
2675                                   LLVMValueRef Val, const char *Name);
2676 LLVMValueRef LLVMBuildFree(LLVMBuilderRef, LLVMValueRef PointerVal);
2677 LLVMValueRef LLVMBuildLoad(LLVMBuilderRef, LLVMValueRef PointerVal,
2678                            const char *Name);
2679 LLVMValueRef LLVMBuildStore(LLVMBuilderRef, LLVMValueRef Val, LLVMValueRef Ptr);
2680 LLVMValueRef LLVMBuildGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
2681                           LLVMValueRef *Indices, unsigned NumIndices,
2682                           const char *Name);
2683 LLVMValueRef LLVMBuildInBoundsGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
2684                                   LLVMValueRef *Indices, unsigned NumIndices,
2685                                   const char *Name);
2686 LLVMValueRef LLVMBuildStructGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
2687                                 unsigned Idx, const char *Name);
2688 LLVMValueRef LLVMBuildGlobalString(LLVMBuilderRef B, const char *Str,
2689                                    const char *Name);
2690 LLVMValueRef LLVMBuildGlobalStringPtr(LLVMBuilderRef B, const char *Str,
2691                                       const char *Name);
2692 LLVMBool LLVMGetVolatile(LLVMValueRef MemoryAccessInst);
2693 void LLVMSetVolatile(LLVMValueRef MemoryAccessInst, LLVMBool IsVolatile);
2694 LLVMAtomicOrdering LLVMGetOrdering(LLVMValueRef MemoryAccessInst);
2695 void LLVMSetOrdering(LLVMValueRef MemoryAccessInst, LLVMAtomicOrdering Ordering);
2696 
2697 /* Casts */
2698 LLVMValueRef LLVMBuildTrunc(LLVMBuilderRef, LLVMValueRef Val,
2699                             LLVMTypeRef DestTy, const char *Name);
2700 LLVMValueRef LLVMBuildZExt(LLVMBuilderRef, LLVMValueRef Val,
2701                            LLVMTypeRef DestTy, const char *Name);
2702 LLVMValueRef LLVMBuildSExt(LLVMBuilderRef, LLVMValueRef Val,
2703                            LLVMTypeRef DestTy, const char *Name);
2704 LLVMValueRef LLVMBuildFPToUI(LLVMBuilderRef, LLVMValueRef Val,
2705                              LLVMTypeRef DestTy, const char *Name);
2706 LLVMValueRef LLVMBuildFPToSI(LLVMBuilderRef, LLVMValueRef Val,
2707                              LLVMTypeRef DestTy, const char *Name);
2708 LLVMValueRef LLVMBuildUIToFP(LLVMBuilderRef, LLVMValueRef Val,
2709                              LLVMTypeRef DestTy, const char *Name);
2710 LLVMValueRef LLVMBuildSIToFP(LLVMBuilderRef, LLVMValueRef Val,
2711                              LLVMTypeRef DestTy, const char *Name);
2712 LLVMValueRef LLVMBuildFPTrunc(LLVMBuilderRef, LLVMValueRef Val,
2713                               LLVMTypeRef DestTy, const char *Name);
2714 LLVMValueRef LLVMBuildFPExt(LLVMBuilderRef, LLVMValueRef Val,
2715                             LLVMTypeRef DestTy, const char *Name);
2716 LLVMValueRef LLVMBuildPtrToInt(LLVMBuilderRef, LLVMValueRef Val,
2717                                LLVMTypeRef DestTy, const char *Name);
2718 LLVMValueRef LLVMBuildIntToPtr(LLVMBuilderRef, LLVMValueRef Val,
2719                                LLVMTypeRef DestTy, const char *Name);
2720 LLVMValueRef LLVMBuildBitCast(LLVMBuilderRef, LLVMValueRef Val,
2721                               LLVMTypeRef DestTy, const char *Name);
2722 LLVMValueRef LLVMBuildAddrSpaceCast(LLVMBuilderRef, LLVMValueRef Val,
2723                                     LLVMTypeRef DestTy, const char *Name);
2724 LLVMValueRef LLVMBuildZExtOrBitCast(LLVMBuilderRef, LLVMValueRef Val,
2725                                     LLVMTypeRef DestTy, const char *Name);
2726 LLVMValueRef LLVMBuildSExtOrBitCast(LLVMBuilderRef, LLVMValueRef Val,
2727                                     LLVMTypeRef DestTy, const char *Name);
2728 LLVMValueRef LLVMBuildTruncOrBitCast(LLVMBuilderRef, LLVMValueRef Val,
2729                                      LLVMTypeRef DestTy, const char *Name);
2730 LLVMValueRef LLVMBuildCast(LLVMBuilderRef B, LLVMOpcode Op, LLVMValueRef Val,
2731                            LLVMTypeRef DestTy, const char *Name);
2732 LLVMValueRef LLVMBuildPointerCast(LLVMBuilderRef, LLVMValueRef Val,
2733                                   LLVMTypeRef DestTy, const char *Name);
2734 LLVMValueRef LLVMBuildIntCast(LLVMBuilderRef, LLVMValueRef Val, /*Signed cast!*/
2735                               LLVMTypeRef DestTy, const char *Name);
2736 LLVMValueRef LLVMBuildFPCast(LLVMBuilderRef, LLVMValueRef Val,
2737                              LLVMTypeRef DestTy, const char *Name);
2738 
2739 /* Comparisons */
2740 LLVMValueRef LLVMBuildICmp(LLVMBuilderRef, LLVMIntPredicate Op,
2741                            LLVMValueRef LHS, LLVMValueRef RHS,
2742                            const char *Name);
2743 LLVMValueRef LLVMBuildFCmp(LLVMBuilderRef, LLVMRealPredicate Op,
2744                            LLVMValueRef LHS, LLVMValueRef RHS,
2745                            const char *Name);
2746 
2747 /* Miscellaneous instructions */
2748 LLVMValueRef LLVMBuildPhi(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
2749 LLVMValueRef LLVMBuildCall(LLVMBuilderRef, LLVMValueRef Fn,
2750                            LLVMValueRef *Args, unsigned NumArgs,
2751                            const char *Name);
2752 LLVMValueRef LLVMBuildSelect(LLVMBuilderRef, LLVMValueRef If,
2753                              LLVMValueRef Then, LLVMValueRef Else,
2754                              const char *Name);
2755 LLVMValueRef LLVMBuildVAArg(LLVMBuilderRef, LLVMValueRef List, LLVMTypeRef Ty,
2756                             const char *Name);
2757 LLVMValueRef LLVMBuildExtractElement(LLVMBuilderRef, LLVMValueRef VecVal,
2758                                      LLVMValueRef Index, const char *Name);
2759 LLVMValueRef LLVMBuildInsertElement(LLVMBuilderRef, LLVMValueRef VecVal,
2760                                     LLVMValueRef EltVal, LLVMValueRef Index,
2761                                     const char *Name);
2762 LLVMValueRef LLVMBuildShuffleVector(LLVMBuilderRef, LLVMValueRef V1,
2763                                     LLVMValueRef V2, LLVMValueRef Mask,
2764                                     const char *Name);
2765 LLVMValueRef LLVMBuildExtractValue(LLVMBuilderRef, LLVMValueRef AggVal,
2766                                    unsigned Index, const char *Name);
2767 LLVMValueRef LLVMBuildInsertValue(LLVMBuilderRef, LLVMValueRef AggVal,
2768                                   LLVMValueRef EltVal, unsigned Index,
2769                                   const char *Name);
2770 
2771 LLVMValueRef LLVMBuildIsNull(LLVMBuilderRef, LLVMValueRef Val,
2772                              const char *Name);
2773 LLVMValueRef LLVMBuildIsNotNull(LLVMBuilderRef, LLVMValueRef Val,
2774                                 const char *Name);
2775 LLVMValueRef LLVMBuildPtrDiff(LLVMBuilderRef, LLVMValueRef LHS,
2776                               LLVMValueRef RHS, const char *Name);
2777 LLVMValueRef LLVMBuildFence(LLVMBuilderRef B, LLVMAtomicOrdering ordering,
2778                             LLVMBool singleThread, const char *Name);
2779 LLVMValueRef LLVMBuildAtomicRMW(LLVMBuilderRef B, LLVMAtomicRMWBinOp op,
2780                                 LLVMValueRef PTR, LLVMValueRef Val,
2781                                 LLVMAtomicOrdering ordering,
2782                                 LLVMBool singleThread);
2783 
2784 /**
2785  * @}
2786  */
2787 
2788 /**
2789  * @defgroup LLVMCCoreModuleProvider Module Providers
2790  *
2791  * @{
2792  */
2793 
2794 /**
2795  * Changes the type of M so it can be passed to FunctionPassManagers and the
2796  * JIT.  They take ModuleProviders for historical reasons.
2797  */
2798 LLVMModuleProviderRef
2799 LLVMCreateModuleProviderForExistingModule(LLVMModuleRef M);
2800 
2801 /**
2802  * Destroys the module M.
2803  */
2804 void LLVMDisposeModuleProvider(LLVMModuleProviderRef M);
2805 
2806 /**
2807  * @}
2808  */
2809 
2810 /**
2811  * @defgroup LLVMCCoreMemoryBuffers Memory Buffers
2812  *
2813  * @{
2814  */
2815 
2816 LLVMBool LLVMCreateMemoryBufferWithContentsOfFile(const char *Path,
2817                                                   LLVMMemoryBufferRef *OutMemBuf,
2818                                                   char **OutMessage);
2819 LLVMBool LLVMCreateMemoryBufferWithSTDIN(LLVMMemoryBufferRef *OutMemBuf,
2820                                          char **OutMessage);
2821 LLVMMemoryBufferRef LLVMCreateMemoryBufferWithMemoryRange(const char *InputData,
2822                                                           size_t InputDataLength,
2823                                                           const char *BufferName,
2824                                                           LLVMBool RequiresNullTerminator);
2825 LLVMMemoryBufferRef LLVMCreateMemoryBufferWithMemoryRangeCopy(const char *InputData,
2826                                                               size_t InputDataLength,
2827                                                               const char *BufferName);
2828 const char *LLVMGetBufferStart(LLVMMemoryBufferRef MemBuf);
2829 size_t LLVMGetBufferSize(LLVMMemoryBufferRef MemBuf);
2830 void LLVMDisposeMemoryBuffer(LLVMMemoryBufferRef MemBuf);
2831 
2832 /**
2833  * @}
2834  */
2835 
2836 /**
2837  * @defgroup LLVMCCorePassRegistry Pass Registry
2838  *
2839  * @{
2840  */
2841 
2842 /** Return the global pass registry, for use with initialization functions.
2843     @see llvm::PassRegistry::getPassRegistry */
2844 LLVMPassRegistryRef LLVMGetGlobalPassRegistry(void);
2845 
2846 /**
2847  * @}
2848  */
2849 
2850 /**
2851  * @defgroup LLVMCCorePassManagers Pass Managers
2852  *
2853  * @{
2854  */
2855 
2856 /** Constructs a new whole-module pass pipeline. This type of pipeline is
2857     suitable for link-time optimization and whole-module transformations.
2858     @see llvm::PassManager::PassManager */
2859 LLVMPassManagerRef LLVMCreatePassManager(void);
2860 
2861 /** Constructs a new function-by-function pass pipeline over the module
2862     provider. It does not take ownership of the module provider. This type of
2863     pipeline is suitable for code generation and JIT compilation tasks.
2864     @see llvm::FunctionPassManager::FunctionPassManager */
2865 LLVMPassManagerRef LLVMCreateFunctionPassManagerForModule(LLVMModuleRef M);
2866 
2867 /** Deprecated: Use LLVMCreateFunctionPassManagerForModule instead. */
2868 LLVMPassManagerRef LLVMCreateFunctionPassManager(LLVMModuleProviderRef MP);
2869 
2870 /** Initializes, executes on the provided module, and finalizes all of the
2871     passes scheduled in the pass manager. Returns 1 if any of the passes
2872     modified the module, 0 otherwise.
2873     @see llvm::PassManager::run(Module&) */
2874 LLVMBool LLVMRunPassManager(LLVMPassManagerRef PM, LLVMModuleRef M);
2875 
2876 /** Initializes all of the function passes scheduled in the function pass
2877     manager. Returns 1 if any of the passes modified the module, 0 otherwise.
2878     @see llvm::FunctionPassManager::doInitialization */
2879 LLVMBool LLVMInitializeFunctionPassManager(LLVMPassManagerRef FPM);
2880 
2881 /** Executes all of the function passes scheduled in the function pass manager
2882     on the provided function. Returns 1 if any of the passes modified the
2883     function, false otherwise.
2884     @see llvm::FunctionPassManager::run(Function&) */
2885 LLVMBool LLVMRunFunctionPassManager(LLVMPassManagerRef FPM, LLVMValueRef F);
2886 
2887 /** Finalizes all of the function passes scheduled in in the function pass
2888     manager. Returns 1 if any of the passes modified the module, 0 otherwise.
2889     @see llvm::FunctionPassManager::doFinalization */
2890 LLVMBool LLVMFinalizeFunctionPassManager(LLVMPassManagerRef FPM);
2891 
2892 /** Frees the memory of a pass pipeline. For function pipelines, does not free
2893     the module provider.
2894     @see llvm::PassManagerBase::~PassManagerBase. */
2895 void LLVMDisposePassManager(LLVMPassManagerRef PM);
2896 
2897 /**
2898  * @}
2899  */
2900 
2901 /**
2902  * @defgroup LLVMCCoreThreading Threading
2903  *
2904  * Handle the structures needed to make LLVM safe for multithreading.
2905  *
2906  * @{
2907  */
2908 
2909 /** Deprecated: Multi-threading can only be enabled/disabled with the compile
2910     time define LLVM_ENABLE_THREADS.  This function always returns
2911     LLVMIsMultithreaded(). */
2912 LLVMBool LLVMStartMultithreaded(void);
2913 
2914 /** Deprecated: Multi-threading can only be enabled/disabled with the compile
2915     time define LLVM_ENABLE_THREADS. */
2916 void LLVMStopMultithreaded(void);
2917 
2918 /** Check whether LLVM is executing in thread-safe mode or not.
2919     @see llvm::llvm_is_multithreaded */
2920 LLVMBool LLVMIsMultithreaded(void);
2921 
2922 /**
2923  * @}
2924  */
2925 
2926 /**
2927  * @}
2928  */
2929 
2930 /**
2931  * @}
2932  */
2933 
2934 #ifdef __cplusplus
2935 }
2936 #endif
2937 
2938 #endif /* LLVM_C_CORE_H */
2939