master
1/* ===-------- intrin.h ---------------------------------------------------===
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
10/* Only include this if we're compiling for the windows platform. */
11#ifndef _MSC_VER
12#include_next <intrin.h>
13#else
14
15#ifndef __INTRIN_H
16#define __INTRIN_H
17
18#include <intrin0.h>
19
20/* First include the standard intrinsics. */
21#if defined(__i386__) || (defined(__x86_64__) && !defined(__arm64ec__))
22#include <x86intrin.h>
23#endif
24
25#if defined(__arm__)
26#include <armintr.h>
27#endif
28
29#if defined(__aarch64__) || defined(__arm64ec__)
30#include <arm64intr.h>
31#endif
32
33/* For the definition of jmp_buf. */
34#if __STDC_HOSTED__
35#include <setjmp.h>
36#endif
37
38/* Define the default attributes for the functions in this file. */
39#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__))
40
41#if __x86_64__
42#define __LPTRINT_TYPE__ __int64
43#else
44#define __LPTRINT_TYPE__ long
45#endif
46
47#ifdef __cplusplus
48extern "C" {
49#endif
50
51#if defined(__MMX__)
52/* And the random ones that aren't in those files. */
53__m64 _m_from_float(float);
54float _m_to_float(__m64);
55#endif
56
57/* Other assorted instruction intrinsics. */
58void __addfsbyte(unsigned long, unsigned char);
59void __addfsdword(unsigned long, unsigned long);
60void __addfsword(unsigned long, unsigned short);
61void __code_seg(const char *);
62void __cpuid(int[4], int);
63void __cpuidex(int[4], int, int);
64__int64 __emul(int, int);
65unsigned __int64 __emulu(unsigned int, unsigned int);
66unsigned int __getcallerseflags(void);
67void __halt(void);
68unsigned char __inbyte(unsigned short);
69void __inbytestring(unsigned short, unsigned char *, unsigned long);
70void __incfsbyte(unsigned long);
71void __incfsdword(unsigned long);
72void __incfsword(unsigned long);
73unsigned long __indword(unsigned short);
74void __indwordstring(unsigned short, unsigned long *, unsigned long);
75void __int2c(void);
76void __invlpg(void *);
77unsigned short __inword(unsigned short);
78void __inwordstring(unsigned short, unsigned short *, unsigned long);
79void __lidt(void *);
80unsigned __int64 __ll_lshift(unsigned __int64, int);
81__int64 __ll_rshift(__int64, int);
82void __movsb(unsigned char *, unsigned char const *, size_t);
83void __movsd(unsigned long *, unsigned long const *, size_t);
84void __movsw(unsigned short *, unsigned short const *, size_t);
85void __nop(void);
86void __nvreg_restore_fence(void);
87void __nvreg_save_fence(void);
88void __outbyte(unsigned short, unsigned char);
89void __outbytestring(unsigned short, unsigned char *, unsigned long);
90void __outdword(unsigned short, unsigned long);
91void __outdwordstring(unsigned short, unsigned long *, unsigned long);
92void __outword(unsigned short, unsigned short);
93void __outwordstring(unsigned short, unsigned short *, unsigned long);
94unsigned long __readcr0(void);
95unsigned long __readcr2(void);
96unsigned __LPTRINT_TYPE__ __readcr3(void);
97unsigned __LPTRINT_TYPE__ __readcr4(void);
98unsigned __int64 __readcr8(void);
99unsigned int __readdr(unsigned int);
100#ifdef __i386__
101unsigned char __readfsbyte(unsigned long);
102unsigned short __readfsword(unsigned long);
103unsigned long __readfsdword(unsigned long);
104unsigned __int64 __readfsqword(unsigned long);
105#endif
106unsigned __int64 __readmsr(unsigned long);
107unsigned __int64 __readpmc(unsigned long);
108unsigned long __segmentlimit(unsigned long);
109void __sidt(void *);
110void __stosb(unsigned char *, unsigned char, size_t);
111void __stosd(unsigned long *, unsigned long, size_t);
112void __stosw(unsigned short *, unsigned short, size_t);
113void __svm_clgi(void);
114void __svm_invlpga(void *, int);
115void __svm_skinit(int);
116void __svm_stgi(void);
117void __svm_vmload(size_t);
118void __svm_vmrun(size_t);
119void __svm_vmsave(size_t);
120void __ud2(void);
121unsigned __int64 __ull_rshift(unsigned __int64, int);
122void __vmx_off(void);
123void __vmx_vmptrst(unsigned __int64 *);
124void __wbinvd(void);
125void __writecr0(unsigned int);
126void __writecr3(unsigned __INTPTR_TYPE__);
127void __writecr4(unsigned __INTPTR_TYPE__);
128void __writecr8(unsigned __int64);
129void __writedr(unsigned int, unsigned int);
130void __writefsbyte(unsigned long, unsigned char);
131void __writefsdword(unsigned long, unsigned long);
132void __writefsqword(unsigned long, unsigned __int64);
133void __writefsword(unsigned long, unsigned short);
134void __writemsr(unsigned long, unsigned __int64);
135void *_AddressOfReturnAddress(void);
136unsigned char _bittest(long const *, long);
137unsigned char _bittestandcomplement(long *, long);
138unsigned char _bittestandreset(long *, long);
139unsigned char _bittestandset(long *, long);
140void __cdecl _disable(void);
141void __cdecl _enable(void);
142long _InterlockedAddLargeStatistic(__int64 volatile *_Addend, long _Value);
143unsigned char _interlockedbittestandreset(long volatile *, long);
144unsigned char _interlockedbittestandset(long volatile *, long);
145void *_InterlockedCompareExchangePointer_HLEAcquire(void *volatile *, void *,
146 void *);
147void *_InterlockedCompareExchangePointer_HLERelease(void *volatile *, void *,
148 void *);
149long _InterlockedExchangeAdd_HLEAcquire(long volatile *, long);
150long _InterlockedExchangeAdd_HLERelease(long volatile *, long);
151__int64 _InterlockedExchangeAdd64_HLEAcquire(__int64 volatile *, __int64);
152__int64 _InterlockedExchangeAdd64_HLERelease(__int64 volatile *, __int64);
153void _ReadBarrier(void);
154unsigned int _rorx_u32(unsigned int, const unsigned int);
155int _sarx_i32(int, unsigned int);
156#if __STDC_HOSTED__
157int __cdecl _setjmp(jmp_buf);
158#endif
159unsigned int _shlx_u32(unsigned int, unsigned int);
160unsigned int _shrx_u32(unsigned int, unsigned int);
161void _Store_HLERelease(long volatile *, long);
162void _Store64_HLERelease(__int64 volatile *, __int64);
163void _StorePointer_HLERelease(void *volatile *, void *);
164void _WriteBarrier(void);
165
166/* These additional intrinsics are turned on in x64/amd64/x86_64 mode. */
167#if defined(__x86_64__) && !defined(__arm64ec__)
168void __addgsbyte(unsigned long, unsigned char);
169void __addgsdword(unsigned long, unsigned long);
170void __addgsqword(unsigned long, unsigned __int64);
171void __addgsword(unsigned long, unsigned short);
172void __faststorefence(void);
173void __incgsbyte(unsigned long);
174void __incgsdword(unsigned long);
175void __incgsqword(unsigned long);
176void __incgsword(unsigned long);
177void __movsq(unsigned long long *, unsigned long long const *, size_t);
178unsigned char __readgsbyte(unsigned long);
179unsigned long __readgsdword(unsigned long);
180unsigned __int64 __readgsqword(unsigned long);
181unsigned short __readgsword(unsigned long);
182void __stosq(unsigned __int64 *, unsigned __int64, size_t);
183unsigned char __vmx_on(unsigned __int64 *);
184unsigned char __vmx_vmclear(unsigned __int64 *);
185unsigned char __vmx_vmlaunch(void);
186unsigned char __vmx_vmptrld(unsigned __int64 *);
187unsigned char __vmx_vmread(size_t, size_t *);
188unsigned char __vmx_vmresume(void);
189unsigned char __vmx_vmwrite(size_t, size_t);
190void __writegsbyte(unsigned long, unsigned char);
191void __writegsdword(unsigned long, unsigned long);
192void __writegsqword(unsigned long, unsigned __int64);
193void __writegsword(unsigned long, unsigned short);
194unsigned char _bittest64(__int64 const *, __int64);
195unsigned char _bittestandcomplement64(__int64 *, __int64);
196unsigned char _bittestandreset64(__int64 *, __int64);
197unsigned char _bittestandset64(__int64 *, __int64);
198long _InterlockedAnd_np(long volatile *_Value, long _Mask);
199short _InterlockedAnd16_np(short volatile *_Value, short _Mask);
200__int64 _InterlockedAnd64_np(__int64 volatile *_Value, __int64 _Mask);
201char _InterlockedAnd8_np(char volatile *_Value, char _Mask);
202unsigned char _interlockedbittestandreset64(__int64 volatile *, __int64);
203unsigned char _interlockedbittestandset64(__int64 volatile *, __int64);
204long _InterlockedCompareExchange_np(long volatile *_Destination, long _Exchange,
205 long _Comparand);
206unsigned char _InterlockedCompareExchange128_np(__int64 volatile *_Destination,
207 __int64 _ExchangeHigh,
208 __int64 _ExchangeLow,
209 __int64 *_ComparandResult);
210short _InterlockedCompareExchange16_np(short volatile *_Destination,
211 short _Exchange, short _Comparand);
212__int64 _InterlockedCompareExchange64_np(__int64 volatile *_Destination,
213 __int64 _Exchange, __int64 _Comparand);
214void *_InterlockedCompareExchangePointer_np(void *volatile *_Destination,
215 void *_Exchange, void *_Comparand);
216long _InterlockedOr_np(long volatile *_Value, long _Mask);
217short _InterlockedOr16_np(short volatile *_Value, short _Mask);
218__int64 _InterlockedOr64_np(__int64 volatile *_Value, __int64 _Mask);
219char _InterlockedOr8_np(char volatile *_Value, char _Mask);
220long _InterlockedXor_np(long volatile *_Value, long _Mask);
221short _InterlockedXor16_np(short volatile *_Value, short _Mask);
222__int64 _InterlockedXor64_np(__int64 volatile *_Value, __int64 _Mask);
223char _InterlockedXor8_np(char volatile *_Value, char _Mask);
224unsigned __int64 _rorx_u64(unsigned __int64, const unsigned int);
225__int64 _sarx_i64(__int64, unsigned int);
226unsigned __int64 _shlx_u64(unsigned __int64, unsigned int);
227unsigned __int64 _shrx_u64(unsigned __int64, unsigned int);
228__int64 __mulh(__int64, __int64);
229unsigned __int64 __umulh(unsigned __int64, unsigned __int64);
230__int64 _mul128(__int64, __int64, __int64 *);
231
232#endif /* __x86_64__ */
233
234/*----------------------------------------------------------------------------*\
235|* movs, stos
236\*----------------------------------------------------------------------------*/
237
238#if defined(__i386__) || (defined(__x86_64__) && !defined(__arm64ec__))
239static __inline__ void __DEFAULT_FN_ATTRS __movsb(unsigned char *__dst,
240 unsigned char const *__src,
241 size_t __n) {
242#if defined(__x86_64__)
243 __asm__ __volatile__("rep movsb"
244 : "+D"(__dst), "+S"(__src), "+c"(__n)
245 :
246 : "memory");
247#else
248 __asm__ __volatile__("xchg {%%esi, %1|%1, esi}\n"
249 "rep movsb\n"
250 "xchg {%%esi, %1|%1, esi}"
251 : "+D"(__dst), "+r"(__src), "+c"(__n)
252 :
253 : "memory");
254#endif
255}
256static __inline__ void __DEFAULT_FN_ATTRS __movsd(unsigned long *__dst,
257 unsigned long const *__src,
258 size_t __n) {
259#if defined(__x86_64__)
260 __asm__ __volatile__("rep movs{l|d}"
261 : "+D"(__dst), "+S"(__src), "+c"(__n)
262 :
263 : "memory");
264#else
265 __asm__ __volatile__("xchg {%%esi, %1|%1, esi}\n"
266 "rep movs{l|d}\n"
267 "xchg {%%esi, %1|%1, esi}"
268 : "+D"(__dst), "+r"(__src), "+c"(__n)
269 :
270 : "memory");
271#endif
272}
273static __inline__ void __DEFAULT_FN_ATTRS __movsw(unsigned short *__dst,
274 unsigned short const *__src,
275 size_t __n) {
276#if defined(__x86_64__)
277 __asm__ __volatile__("rep movsw"
278 : "+D"(__dst), "+S"(__src), "+c"(__n)
279 :
280 : "memory");
281#else
282 __asm__ __volatile__("xchg {%%esi, %1|%1, esi}\n"
283 "rep movsw\n"
284 "xchg {%%esi, %1|%1, esi}"
285 : "+D"(__dst), "+r"(__src), "+c"(__n)
286 :
287 : "memory");
288#endif
289}
290static __inline__ void __DEFAULT_FN_ATTRS __stosd(unsigned long *__dst,
291 unsigned long __x,
292 size_t __n) {
293 __asm__ __volatile__("rep stos{l|d}"
294 : "+D"(__dst), "+c"(__n)
295 : "a"(__x)
296 : "memory");
297}
298static __inline__ void __DEFAULT_FN_ATTRS __stosw(unsigned short *__dst,
299 unsigned short __x,
300 size_t __n) {
301 __asm__ __volatile__("rep stosw"
302 : "+D"(__dst), "+c"(__n)
303 : "a"(__x)
304 : "memory");
305}
306#endif
307#if defined(__x86_64__) && !defined(__arm64ec__)
308static __inline__ void __DEFAULT_FN_ATTRS __movsq(
309 unsigned long long *__dst, unsigned long long const *__src, size_t __n) {
310 __asm__ __volatile__("rep movsq"
311 : "+D"(__dst), "+S"(__src), "+c"(__n)
312 :
313 : "memory");
314}
315static __inline__ void __DEFAULT_FN_ATTRS __stosq(unsigned __int64 *__dst,
316 unsigned __int64 __x,
317 size_t __n) {
318 __asm__ __volatile__("rep stosq" : "+D"(__dst), "+c"(__n) : "a"(__x)
319 : "memory");
320}
321#endif
322
323/*----------------------------------------------------------------------------*\
324|* Misc
325\*----------------------------------------------------------------------------*/
326#if defined(__i386__) || (defined(__x86_64__) && !defined(__arm64ec__))
327static __inline__ void __DEFAULT_FN_ATTRS __halt(void) {
328 __asm__ volatile("hlt");
329}
330
331static __inline__ unsigned char __inbyte(unsigned short port) {
332 unsigned char ret;
333 __asm__ __volatile__("inb %w1, %b0" : "=a"(ret) : "Nd"(port));
334 return ret;
335}
336
337static __inline__ unsigned short __inword(unsigned short port) {
338 unsigned short ret;
339 __asm__ __volatile__("inw %w1, %w0" : "=a"(ret) : "Nd"(port));
340 return ret;
341}
342
343static __inline__ unsigned long __indword(unsigned short port) {
344 unsigned long ret;
345 __asm__ __volatile__("inl %w1, %k0" : "=a"(ret) : "Nd"(port));
346 return ret;
347}
348
349static __inline__ void __outbyte(unsigned short port, unsigned char data) {
350 __asm__ __volatile__("outb %b0, %w1" : : "a"(data), "Nd"(port));
351}
352
353static __inline__ void __outword(unsigned short port, unsigned short data) {
354 __asm__ __volatile__("outw %w0, %w1" : : "a"(data), "Nd"(port));
355}
356
357static __inline__ void __outdword(unsigned short port, unsigned long data) {
358 __asm__ __volatile__("outl %k0, %w1" : : "a"(data), "Nd"(port));
359}
360#endif
361
362#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
363static __inline__ void __DEFAULT_FN_ATTRS __nop(void) {
364 __asm__ volatile("nop");
365}
366#endif
367
368/*----------------------------------------------------------------------------*\
369|* MS AArch64 specific
370\*----------------------------------------------------------------------------*/
371#if defined(__aarch64__) || defined(__arm64ec__)
372unsigned __int64 __getReg(int);
373unsigned char _interlockedbittestandreset_acq(long volatile *, long);
374unsigned char _interlockedbittestandreset_nf(long volatile *, long);
375unsigned char _interlockedbittestandreset_rel(long volatile *, long);
376unsigned char _interlockedbittestandreset64_acq(__int64 volatile *, __int64);
377unsigned char _interlockedbittestandreset64_nf(__int64 volatile *, __int64);
378unsigned char _interlockedbittestandreset64_rel(__int64 volatile *, __int64);
379unsigned char _interlockedbittestandset_acq(long volatile *, long);
380unsigned char _interlockedbittestandset_nf(long volatile *, long);
381unsigned char _interlockedbittestandset_rel(long volatile *, long);
382unsigned char _interlockedbittestandset64_acq(__int64 volatile *, __int64);
383unsigned char _interlockedbittestandset64_nf(__int64 volatile *, __int64);
384unsigned char _interlockedbittestandset64_rel(__int64 volatile *, __int64);
385long _InterlockedAdd(long volatile *, long);
386long _InterlockedAdd_acq(long volatile *, long);
387long _InterlockedAdd_nf(long volatile *, long);
388long _InterlockedAdd_rel(long volatile *, long);
389__int64 _InterlockedAdd64(__int64 volatile *, __int64);
390__int64 _InterlockedAdd64_acq(__int64 volatile *, __int64);
391__int64 _InterlockedAdd64_nf(__int64 volatile *, __int64);
392__int64 _InterlockedAdd64_rel(__int64 volatile *, __int64);
393__int64 _ReadStatusReg(int);
394void _WriteStatusReg(int, __int64);
395unsigned int __sys(int, __int64);
396
397unsigned short __cdecl _byteswap_ushort(unsigned short val);
398unsigned long __cdecl _byteswap_ulong (unsigned long val);
399unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64 val);
400
401__int64 __mulh(__int64 __a, __int64 __b);
402unsigned __int64 __umulh(unsigned __int64 __a, unsigned __int64 __b);
403
404void __break(int);
405
406void __writex18byte(unsigned long offset, unsigned char data);
407void __writex18word(unsigned long offset, unsigned short data);
408void __writex18dword(unsigned long offset, unsigned long data);
409void __writex18qword(unsigned long offset, unsigned __int64 data);
410
411unsigned char __readx18byte(unsigned long offset);
412unsigned short __readx18word(unsigned long offset);
413unsigned long __readx18dword(unsigned long offset);
414unsigned __int64 __readx18qword(unsigned long offset);
415
416void __addx18byte(unsigned long offset, unsigned char data);
417void __addx18word(unsigned long offset, unsigned short data);
418void __addx18dword(unsigned long offset, unsigned long data);
419void __addx18qword(unsigned long offset, unsigned __int64 data);
420
421void __incx18byte(unsigned long offset);
422void __incx18word(unsigned long offset);
423void __incx18dword(unsigned long offset);
424void __incx18qword(unsigned long offset);
425
426double _CopyDoubleFromInt64(__int64);
427float _CopyFloatFromInt32(__int32);
428__int32 _CopyInt32FromFloat(float);
429__int64 _CopyInt64FromDouble(double);
430
431unsigned int _CountLeadingOnes(unsigned long);
432unsigned int _CountLeadingOnes64(unsigned __int64);
433unsigned int _CountLeadingSigns(long);
434unsigned int _CountLeadingSigns64(__int64);
435unsigned int _CountOneBits(unsigned long);
436unsigned int _CountOneBits64(unsigned __int64);
437
438unsigned int __hlt(unsigned int, ...);
439
440void __cdecl __prefetch(const void *);
441
442#endif
443
444/*----------------------------------------------------------------------------*\
445|* Privileged intrinsics
446\*----------------------------------------------------------------------------*/
447#if defined(__i386__) || (defined(__x86_64__) && !defined(__arm64ec__))
448static __inline__ unsigned __int64 __DEFAULT_FN_ATTRS
449__readmsr(unsigned long __register) {
450 // Loads the contents of a 64-bit model specific register (MSR) specified in
451 // the ECX register into registers EDX:EAX. The EDX register is loaded with
452 // the high-order 32 bits of the MSR and the EAX register is loaded with the
453 // low-order 32 bits. If less than 64 bits are implemented in the MSR being
454 // read, the values returned to EDX:EAX in unimplemented bit locations are
455 // undefined.
456 unsigned long __edx;
457 unsigned long __eax;
458 __asm__ ("rdmsr" : "=d"(__edx), "=a"(__eax) : "c"(__register));
459 return (((unsigned __int64)__edx) << 32) | (unsigned __int64)__eax;
460}
461
462static __inline__ unsigned __LPTRINT_TYPE__ __DEFAULT_FN_ATTRS __readcr3(void) {
463 unsigned __LPTRINT_TYPE__ __cr3_val;
464 __asm__ __volatile__(
465 "mov {%%cr3, %0|%0, cr3}"
466 : "=r"(__cr3_val)
467 :
468 : "memory");
469 return __cr3_val;
470}
471
472static __inline__ void __DEFAULT_FN_ATTRS
473__writecr3(unsigned __INTPTR_TYPE__ __cr3_val) {
474 __asm__ ("mov {%0, %%cr3|cr3, %0}" : : "r"(__cr3_val) : "memory");
475}
476#endif
477
478#ifdef __cplusplus
479}
480#endif
481
482#undef __LPTRINT_TYPE__
483
484#undef __DEFAULT_FN_ATTRS
485
486#endif /* __INTRIN_H */
487#endif /* _MSC_VER */