1//===-- llvm/Support/Compiler.h - Compiler abstraction support --*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines several macros, based on the current compiler. This allows
10// use of compiler-specific features in a way that remains portable.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_SUPPORT_COMPILER_H
15#define LLVM_SUPPORT_COMPILER_H
16
17#include "llvm/Config/llvm-config.h"
18
19#include <new>
20#include <stddef.h>
21
22#if defined(_MSC_VER)
23#include <sal.h>
24#endif
25
26#ifndef __has_feature
27# define __has_feature(x) 0
28#endif
29
30#ifndef __has_extension
31# define __has_extension(x) 0
32#endif
33
34#ifndef __has_attribute
35# define __has_attribute(x) 0
36#endif
37
38#ifndef __has_cpp_attribute
39# define __has_cpp_attribute(x) 0
40#endif
41
42#ifndef __has_builtin
43# define __has_builtin(x) 0
44#endif
45
46/// \macro LLVM_GNUC_PREREQ
47/// Extend the default __GNUC_PREREQ even if glibc's features.h isn't
48/// available.
49#ifndef LLVM_GNUC_PREREQ
50# if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
51# define LLVM_GNUC_PREREQ(maj, min, patch) \
52 ((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) + __GNUC_PATCHLEVEL__ >= \
53 ((maj) << 20) + ((min) << 10) + (patch))
54# elif defined(__GNUC__) && defined(__GNUC_MINOR__)
55# define LLVM_GNUC_PREREQ(maj, min, patch) \
56 ((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) >= ((maj) << 20) + ((min) << 10))
57# else
58# define LLVM_GNUC_PREREQ(maj, min, patch) 0
59# endif
60#endif
61
62/// \macro LLVM_MSC_PREREQ
63/// Is the compiler MSVC of at least the specified version?
64/// The common \param version values to check for are:
65/// * 1900: Microsoft Visual Studio 2015 / 14.0
66#ifdef _MSC_VER
67#define LLVM_MSC_PREREQ(version) (_MSC_VER >= (version))
68
69// We require at least MSVC 2015.
70#if !LLVM_MSC_PREREQ(1900)
71#error LLVM requires at least MSVC 2015.
72#endif
73
74#else
75#define LLVM_MSC_PREREQ(version) 0
76#endif
77
78/// Does the compiler support ref-qualifiers for *this?
79///
80/// Sadly, this is separate from just rvalue reference support because GCC
81/// and MSVC implemented this later than everything else.
82#if __has_feature(cxx_rvalue_references) || LLVM_GNUC_PREREQ(4, 8, 1)
83#define LLVM_HAS_RVALUE_REFERENCE_THIS 1
84#else
85#define LLVM_HAS_RVALUE_REFERENCE_THIS 0
86#endif
87
88/// Expands to '&' if ref-qualifiers for *this are supported.
89///
90/// This can be used to provide lvalue/rvalue overrides of member functions.
91/// The rvalue override should be guarded by LLVM_HAS_RVALUE_REFERENCE_THIS
92#if LLVM_HAS_RVALUE_REFERENCE_THIS
93#define LLVM_LVALUE_FUNCTION &
94#else
95#define LLVM_LVALUE_FUNCTION
96#endif
97
98/// LLVM_LIBRARY_VISIBILITY - If a class marked with this attribute is linked
99/// into a shared library, then the class should be private to the library and
100/// not accessible from outside it. Can also be used to mark variables and
101/// functions, making them private to any shared library they are linked into.
102/// On PE/COFF targets, library visibility is the default, so this isn't needed.
103#if (__has_attribute(visibility) || LLVM_GNUC_PREREQ(4, 0, 0)) && \
104 !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(_WIN32)
105#define LLVM_LIBRARY_VISIBILITY __attribute__ ((visibility("hidden")))
106#else
107#define LLVM_LIBRARY_VISIBILITY
108#endif
109
110#if defined(__GNUC__)
111#define LLVM_PREFETCH(addr, rw, locality) __builtin_prefetch(addr, rw, locality)
112#else
113#define LLVM_PREFETCH(addr, rw, locality)
114#endif
115
116#if __has_attribute(used) || LLVM_GNUC_PREREQ(3, 1, 0)
117#define LLVM_ATTRIBUTE_USED __attribute__((__used__))
118#else
119#define LLVM_ATTRIBUTE_USED
120#endif
121
122/// LLVM_NODISCARD - Warn if a type or return value is discarded.
123#if __cplusplus > 201402L && __has_cpp_attribute(nodiscard)
124#define LLVM_NODISCARD [[nodiscard]]
125#elif !__cplusplus
126// Workaround for llvm.org/PR23435, since clang 3.6 and below emit a spurious
127// error when __has_cpp_attribute is given a scoped attribute in C mode.
128#define LLVM_NODISCARD
129#elif __has_cpp_attribute(clang::warn_unused_result)
130#define LLVM_NODISCARD [[clang::warn_unused_result]]
131#else
132#define LLVM_NODISCARD
133#endif
134
135// Indicate that a non-static, non-const C++ member function reinitializes
136// the entire object to a known state, independent of the previous state of
137// the object.
138//
139// The clang-tidy check bugprone-use-after-move recognizes this attribute as a
140// marker that a moved-from object has left the indeterminate state and can be
141// reused.
142#if __has_cpp_attribute(clang::reinitializes)
143#define LLVM_ATTRIBUTE_REINITIALIZES [[clang::reinitializes]]
144#else
145#define LLVM_ATTRIBUTE_REINITIALIZES
146#endif
147
148// Some compilers warn about unused functions. When a function is sometimes
149// used or not depending on build settings (e.g. a function only called from
150// within "assert"), this attribute can be used to suppress such warnings.
151//
152// However, it shouldn't be used for unused *variables*, as those have a much
153// more portable solution:
154// (void)unused_var_name;
155// Prefer cast-to-void wherever it is sufficient.
156#if __has_attribute(unused) || LLVM_GNUC_PREREQ(3, 1, 0)
157#define LLVM_ATTRIBUTE_UNUSED __attribute__((__unused__))
158#else
159#define LLVM_ATTRIBUTE_UNUSED
160#endif
161
162// FIXME: Provide this for PE/COFF targets.
163#if (__has_attribute(weak) || LLVM_GNUC_PREREQ(4, 0, 0)) && \
164 (!defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(_WIN32))
165#define LLVM_ATTRIBUTE_WEAK __attribute__((__weak__))
166#else
167#define LLVM_ATTRIBUTE_WEAK
168#endif
169
170// Prior to clang 3.2, clang did not accept any spelling of
171// __has_attribute(const), so assume it is supported.
172#if defined(__clang__) || defined(__GNUC__)
173// aka 'CONST' but following LLVM Conventions.
174#define LLVM_READNONE __attribute__((__const__))
175#else
176#define LLVM_READNONE
177#endif
178
179#if __has_attribute(pure) || defined(__GNUC__)
180// aka 'PURE' but following LLVM Conventions.
181#define LLVM_READONLY __attribute__((__pure__))
182#else
183#define LLVM_READONLY
184#endif
185
186#if __has_builtin(__builtin_expect) || LLVM_GNUC_PREREQ(4, 0, 0)
187#define LLVM_LIKELY(EXPR) __builtin_expect((bool)(EXPR), true)
188#define LLVM_UNLIKELY(EXPR) __builtin_expect((bool)(EXPR), false)
189#else
190#define LLVM_LIKELY(EXPR) (EXPR)
191#define LLVM_UNLIKELY(EXPR) (EXPR)
192#endif
193
194/// LLVM_ATTRIBUTE_NOINLINE - On compilers where we have a directive to do so,
195/// mark a method "not for inlining".
196#if __has_attribute(noinline) || LLVM_GNUC_PREREQ(3, 4, 0)
197#define LLVM_ATTRIBUTE_NOINLINE __attribute__((noinline))
198#elif defined(_MSC_VER)
199#define LLVM_ATTRIBUTE_NOINLINE __declspec(noinline)
200#else
201#define LLVM_ATTRIBUTE_NOINLINE
202#endif
203
204/// LLVM_ATTRIBUTE_ALWAYS_INLINE - On compilers where we have a directive to do
205/// so, mark a method "always inline" because it is performance sensitive. GCC
206/// 3.4 supported this but is buggy in various cases and produces unimplemented
207/// errors, just use it in GCC 4.0 and later.
208#if __has_attribute(always_inline) || LLVM_GNUC_PREREQ(4, 0, 0)
209#define LLVM_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
210#elif defined(_MSC_VER)
211#define LLVM_ATTRIBUTE_ALWAYS_INLINE __forceinline
212#else
213#define LLVM_ATTRIBUTE_ALWAYS_INLINE
214#endif
215
216#ifdef __GNUC__
217#define LLVM_ATTRIBUTE_NORETURN __attribute__((noreturn))
218#elif defined(_MSC_VER)
219#define LLVM_ATTRIBUTE_NORETURN __declspec(noreturn)
220#else
221#define LLVM_ATTRIBUTE_NORETURN
222#endif
223
224#if __has_attribute(returns_nonnull) || LLVM_GNUC_PREREQ(4, 9, 0)
225#define LLVM_ATTRIBUTE_RETURNS_NONNULL __attribute__((returns_nonnull))
226#elif defined(_MSC_VER)
227#define LLVM_ATTRIBUTE_RETURNS_NONNULL _Ret_notnull_
228#else
229#define LLVM_ATTRIBUTE_RETURNS_NONNULL
230#endif
231
232/// \macro LLVM_ATTRIBUTE_RETURNS_NOALIAS Used to mark a function as returning a
233/// pointer that does not alias any other valid pointer.
234#ifdef __GNUC__
235#define LLVM_ATTRIBUTE_RETURNS_NOALIAS __attribute__((__malloc__))
236#elif defined(_MSC_VER)
237#define LLVM_ATTRIBUTE_RETURNS_NOALIAS __declspec(restrict)
238#else
239#define LLVM_ATTRIBUTE_RETURNS_NOALIAS
240#endif
241
242/// LLVM_FALLTHROUGH - Mark fallthrough cases in switch statements.
243#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
244#define LLVM_FALLTHROUGH [[fallthrough]]
245#elif __has_cpp_attribute(gnu::fallthrough)
246#define LLVM_FALLTHROUGH [[gnu::fallthrough]]
247#elif !__cplusplus
248// Workaround for llvm.org/PR23435, since clang 3.6 and below emit a spurious
249// error when __has_cpp_attribute is given a scoped attribute in C mode.
250#define LLVM_FALLTHROUGH
251#elif __has_cpp_attribute(clang::fallthrough)
252#define LLVM_FALLTHROUGH [[clang::fallthrough]]
253#else
254#define LLVM_FALLTHROUGH
255#endif
256
257/// LLVM_EXTENSION - Support compilers where we have a keyword to suppress
258/// pedantic diagnostics.
259#ifdef __GNUC__
260#define LLVM_EXTENSION __extension__
261#else
262#define LLVM_EXTENSION
263#endif
264
265// LLVM_ATTRIBUTE_DEPRECATED(decl, "message")
266#if __has_feature(attribute_deprecated_with_message)
267# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
268 decl __attribute__((deprecated(message)))
269#elif defined(__GNUC__)
270# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
271 decl __attribute__((deprecated))
272#elif defined(_MSC_VER)
273# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
274 __declspec(deprecated(message)) decl
275#else
276# define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
277 decl
278#endif
279
280/// LLVM_BUILTIN_UNREACHABLE - On compilers which support it, expands
281/// to an expression which states that it is undefined behavior for the
282/// compiler to reach this point. Otherwise is not defined.
283#if __has_builtin(__builtin_unreachable) || LLVM_GNUC_PREREQ(4, 5, 0)
284# define LLVM_BUILTIN_UNREACHABLE __builtin_unreachable()
285#elif defined(_MSC_VER)
286# define LLVM_BUILTIN_UNREACHABLE __assume(false)
287#endif
288
289/// LLVM_BUILTIN_TRAP - On compilers which support it, expands to an expression
290/// which causes the program to exit abnormally.
291#if __has_builtin(__builtin_trap) || LLVM_GNUC_PREREQ(4, 3, 0)
292# define LLVM_BUILTIN_TRAP __builtin_trap()
293#elif defined(_MSC_VER)
294// The __debugbreak intrinsic is supported by MSVC, does not require forward
295// declarations involving platform-specific typedefs (unlike RaiseException),
296// results in a call to vectored exception handlers, and encodes to a short
297// instruction that still causes the trapping behavior we want.
298# define LLVM_BUILTIN_TRAP __debugbreak()
299#else
300# define LLVM_BUILTIN_TRAP *(volatile int*)0x11 = 0
301#endif
302
303/// LLVM_BUILTIN_DEBUGTRAP - On compilers which support it, expands to
304/// an expression which causes the program to break while running
305/// under a debugger.
306#if __has_builtin(__builtin_debugtrap)
307# define LLVM_BUILTIN_DEBUGTRAP __builtin_debugtrap()
308#elif defined(_MSC_VER)
309// The __debugbreak intrinsic is supported by MSVC and breaks while
310// running under the debugger, and also supports invoking a debugger
311// when the OS is configured appropriately.
312# define LLVM_BUILTIN_DEBUGTRAP __debugbreak()
313#else
314// Just continue execution when built with compilers that have no
315// support. This is a debugging aid and not intended to force the
316// program to abort if encountered.
317# define LLVM_BUILTIN_DEBUGTRAP
318#endif
319
320/// \macro LLVM_ASSUME_ALIGNED
321/// Returns a pointer with an assumed alignment.
322#if __has_builtin(__builtin_assume_aligned) || LLVM_GNUC_PREREQ(4, 7, 0)
323# define LLVM_ASSUME_ALIGNED(p, a) __builtin_assume_aligned(p, a)
324#elif defined(LLVM_BUILTIN_UNREACHABLE)
325// As of today, clang does not support __builtin_assume_aligned.
326# define LLVM_ASSUME_ALIGNED(p, a) \
327 (((uintptr_t(p) % (a)) == 0) ? (p) : (LLVM_BUILTIN_UNREACHABLE, (p)))
328#else
329# define LLVM_ASSUME_ALIGNED(p, a) (p)
330#endif
331
332/// \macro LLVM_ALIGNAS
333/// Used to specify a minimum alignment for a structure or variable.
334#if __GNUC__ && !__has_feature(cxx_alignas) && !LLVM_GNUC_PREREQ(4, 8, 1)
335# define LLVM_ALIGNAS(x) __attribute__((aligned(x)))
336#else
337# define LLVM_ALIGNAS(x) alignas(x)
338#endif
339
340/// \macro LLVM_PACKED
341/// Used to specify a packed structure.
342/// LLVM_PACKED(
343/// struct A {
344/// int i;
345/// int j;
346/// int k;
347/// long long l;
348/// });
349///
350/// LLVM_PACKED_START
351/// struct B {
352/// int i;
353/// int j;
354/// int k;
355/// long long l;
356/// };
357/// LLVM_PACKED_END
358#ifdef _MSC_VER
359# define LLVM_PACKED(d) __pragma(pack(push, 1)) d __pragma(pack(pop))
360# define LLVM_PACKED_START __pragma(pack(push, 1))
361# define LLVM_PACKED_END __pragma(pack(pop))
362#else
363# define LLVM_PACKED(d) d __attribute__((packed))
364# define LLVM_PACKED_START _Pragma("pack(push, 1)")
365# define LLVM_PACKED_END _Pragma("pack(pop)")
366#endif
367
368/// \macro LLVM_PTR_SIZE
369/// A constant integer equivalent to the value of sizeof(void*).
370/// Generally used in combination with LLVM_ALIGNAS or when doing computation in
371/// the preprocessor.
372#ifdef __SIZEOF_POINTER__
373# define LLVM_PTR_SIZE __SIZEOF_POINTER__
374#elif defined(_WIN64)
375# define LLVM_PTR_SIZE 8
376#elif defined(_WIN32)
377# define LLVM_PTR_SIZE 4
378#elif defined(_MSC_VER)
379# error "could not determine LLVM_PTR_SIZE as a constant int for MSVC"
380#else
381# define LLVM_PTR_SIZE sizeof(void *)
382#endif
383
384/// \macro LLVM_MEMORY_SANITIZER_BUILD
385/// Whether LLVM itself is built with MemorySanitizer instrumentation.
386#if __has_feature(memory_sanitizer)
387# define LLVM_MEMORY_SANITIZER_BUILD 1
388# include <sanitizer/msan_interface.h>
389#else
390# define LLVM_MEMORY_SANITIZER_BUILD 0
391# define __msan_allocated_memory(p, size)
392# define __msan_unpoison(p, size)
393#endif
394
395/// \macro LLVM_ADDRESS_SANITIZER_BUILD
396/// Whether LLVM itself is built with AddressSanitizer instrumentation.
397#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
398# define LLVM_ADDRESS_SANITIZER_BUILD 1
399# include <sanitizer/asan_interface.h>
400#else
401# define LLVM_ADDRESS_SANITIZER_BUILD 0
402# define __asan_poison_memory_region(p, size)
403# define __asan_unpoison_memory_region(p, size)
404#endif
405
406/// \macro LLVM_THREAD_SANITIZER_BUILD
407/// Whether LLVM itself is built with ThreadSanitizer instrumentation.
408#if __has_feature(thread_sanitizer) || defined(__SANITIZE_THREAD__)
409# define LLVM_THREAD_SANITIZER_BUILD 1
410#else
411# define LLVM_THREAD_SANITIZER_BUILD 0
412#endif
413
414#if LLVM_THREAD_SANITIZER_BUILD
415// Thread Sanitizer is a tool that finds races in code.
416// See http://code.google.com/p/data-race-test/wiki/DynamicAnnotations .
417// tsan detects these exact functions by name.
418#ifdef __cplusplus
419extern "C" {
420#endif
421void AnnotateHappensAfter(const char *file, int line, const volatile void *cv);
422void AnnotateHappensBefore(const char *file, int line, const volatile void *cv);
423void AnnotateIgnoreWritesBegin(const char *file, int line);
424void AnnotateIgnoreWritesEnd(const char *file, int line);
425#ifdef __cplusplus
426}
427#endif
428
429// This marker is used to define a happens-before arc. The race detector will
430// infer an arc from the begin to the end when they share the same pointer
431// argument.
432# define TsanHappensBefore(cv) AnnotateHappensBefore(__FILE__, __LINE__, cv)
433
434// This marker defines the destination of a happens-before arc.
435# define TsanHappensAfter(cv) AnnotateHappensAfter(__FILE__, __LINE__, cv)
436
437// Ignore any races on writes between here and the next TsanIgnoreWritesEnd.
438# define TsanIgnoreWritesBegin() AnnotateIgnoreWritesBegin(__FILE__, __LINE__)
439
440// Resume checking for racy writes.
441# define TsanIgnoreWritesEnd() AnnotateIgnoreWritesEnd(__FILE__, __LINE__)
442#else
443# define TsanHappensBefore(cv)
444# define TsanHappensAfter(cv)
445# define TsanIgnoreWritesBegin()
446# define TsanIgnoreWritesEnd()
447#endif
448
449/// \macro LLVM_NO_SANITIZE
450/// Disable a particular sanitizer for a function.
451#if __has_attribute(no_sanitize)
452#define LLVM_NO_SANITIZE(KIND) __attribute__((no_sanitize(KIND)))
453#else
454#define LLVM_NO_SANITIZE(KIND)
455#endif
456
457/// Mark debug helper function definitions like dump() that should not be
458/// stripped from debug builds.
459/// Note that you should also surround dump() functions with
460/// `#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)` so they do always
461/// get stripped in release builds.
462// FIXME: Move this to a private config.h as it's not usable in public headers.
463#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
464#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE LLVM_ATTRIBUTE_USED
465#else
466#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE
467#endif
468
469/// \macro LLVM_PRETTY_FUNCTION
470/// Gets a user-friendly looking function signature for the current scope
471/// using the best available method on each platform. The exact format of the
472/// resulting string is implementation specific and non-portable, so this should
473/// only be used, for example, for logging or diagnostics.
474#if defined(_MSC_VER)
475#define LLVM_PRETTY_FUNCTION __FUNCSIG__
476#elif defined(__GNUC__) || defined(__clang__)
477#define LLVM_PRETTY_FUNCTION __PRETTY_FUNCTION__
478#else
479#define LLVM_PRETTY_FUNCTION __func__
480#endif
481
482/// \macro LLVM_THREAD_LOCAL
483/// A thread-local storage specifier which can be used with globals,
484/// extern globals, and static globals.
485///
486/// This is essentially an extremely restricted analog to C++11's thread_local
487/// support, and uses that when available. However, it falls back on
488/// platform-specific or vendor-provided extensions when necessary. These
489/// extensions don't support many of the C++11 thread_local's features. You
490/// should only use this for PODs that you can statically initialize to
491/// some constant value. In almost all circumstances this is most appropriate
492/// for use with a pointer, integer, or small aggregation of pointers and
493/// integers.
494#if LLVM_ENABLE_THREADS
495#if __has_feature(cxx_thread_local)
496#define LLVM_THREAD_LOCAL thread_local
497#elif defined(_MSC_VER)
498// MSVC supports this with a __declspec.
499#define LLVM_THREAD_LOCAL __declspec(thread)
500#else
501// Clang, GCC, and other compatible compilers used __thread prior to C++11 and
502// we only need the restricted functionality that provides.
503#define LLVM_THREAD_LOCAL __thread
504#endif
505#else // !LLVM_ENABLE_THREADS
506// If threading is disabled entirely, this compiles to nothing and you get
507// a normal global variable.
508#define LLVM_THREAD_LOCAL
509#endif
510
511/// \macro LLVM_ENABLE_EXCEPTIONS
512/// Whether LLVM is built with exception support.
513#if __has_feature(cxx_exceptions)
514#define LLVM_ENABLE_EXCEPTIONS 1
515#elif defined(__GNUC__) && defined(__EXCEPTIONS)
516#define LLVM_ENABLE_EXCEPTIONS 1
517#elif defined(_MSC_VER) && defined(_CPPUNWIND)
518#define LLVM_ENABLE_EXCEPTIONS 1
519#endif
520
521namespace llvm {
522
523/// Allocate a buffer of memory with the given size and alignment.
524///
525/// When the compiler supports aligned operator new, this will use it to to
526/// handle even over-aligned allocations.
527///
528/// However, this doesn't make any attempt to leverage the fancier techniques
529/// like posix_memalign due to portability. It is mostly intended to allow
530/// compatibility with platforms that, after aligned allocation was added, use
531/// reduced default alignment.
532inline void *allocate_buffer(size_t Size, size_t Alignment) {
533 return ::operator new(Size
534#ifdef __cpp_aligned_new
535 ,
536 std::align_val_t(Alignment)
537#endif
538 );
539}
540
541/// Deallocate a buffer of memory with the given size and alignment.
542///
543/// If supported, this will used the sized delete operator. Also if supported,
544/// this will pass the alignment to the delete operator.
545///
546/// The pointer must have been allocated with the corresponding new operator,
547/// most likely using the above helper.
548inline void deallocate_buffer(void *Ptr, size_t Size, size_t Alignment) {
549 ::operator delete(Ptr
550#ifdef __cpp_sized_deallocation
551 ,
552 Size
553#endif
554#ifdef __cpp_aligned_new
555 ,
556 std::align_val_t(Alignment)
557#endif
558 );
559}
560
561} // End namespace llvm
562
563#endif
564