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__clang_cuda_intrinsics.h
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1/*===--- __clang_cuda_intrinsics.h - Device-side CUDA intrinsic wrappers ---===
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#ifndef __CLANG_CUDA_INTRINSICS_H__
10#define __CLANG_CUDA_INTRINSICS_H__
11#ifndef __CUDA__
12#error "This file is for CUDA compilation only."
13#endif
14
15// sm_30 intrinsics: __shfl_{up,down,xor}.
16
17#define __SM_30_INTRINSICS_H__
18#define __SM_30_INTRINSICS_HPP__
19
20#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 300
21
22#pragma push_macro("__MAKE_SHUFFLES")
23#define __MAKE_SHUFFLES(__FnName, __IntIntrinsic, __FloatIntrinsic, __Mask, \
24 __Type) \
25 inline __device__ int __FnName(int __val, __Type __offset, \
26 int __width = warpSize) { \
27 return __IntIntrinsic(__val, __offset, \
28 ((warpSize - __width) << 8) | (__Mask)); \
29 } \
30 inline __device__ float __FnName(float __val, __Type __offset, \
31 int __width = warpSize) { \
32 return __FloatIntrinsic(__val, __offset, \
33 ((warpSize - __width) << 8) | (__Mask)); \
34 } \
35 inline __device__ unsigned int __FnName(unsigned int __val, __Type __offset, \
36 int __width = warpSize) { \
37 return static_cast<unsigned int>( \
38 ::__FnName(static_cast<int>(__val), __offset, __width)); \
39 } \
40 inline __device__ long long __FnName(long long __val, __Type __offset, \
41 int __width = warpSize) { \
42 struct __Bits { \
43 int __a, __b; \
44 }; \
45 _Static_assert(sizeof(__val) == sizeof(__Bits)); \
46 _Static_assert(sizeof(__Bits) == 2 * sizeof(int)); \
47 __Bits __tmp; \
48 memcpy(&__tmp, &__val, sizeof(__val)); \
49 __tmp.__a = ::__FnName(__tmp.__a, __offset, __width); \
50 __tmp.__b = ::__FnName(__tmp.__b, __offset, __width); \
51 long long __ret; \
52 memcpy(&__ret, &__tmp, sizeof(__tmp)); \
53 return __ret; \
54 } \
55 inline __device__ long __FnName(long __val, __Type __offset, \
56 int __width = warpSize) { \
57 _Static_assert(sizeof(long) == sizeof(long long) || \
58 sizeof(long) == sizeof(int)); \
59 if (sizeof(long) == sizeof(long long)) { \
60 return static_cast<long>( \
61 ::__FnName(static_cast<long long>(__val), __offset, __width)); \
62 } else if (sizeof(long) == sizeof(int)) { \
63 return static_cast<long>( \
64 ::__FnName(static_cast<int>(__val), __offset, __width)); \
65 } \
66 } \
67 inline __device__ unsigned long __FnName( \
68 unsigned long __val, __Type __offset, int __width = warpSize) { \
69 return static_cast<unsigned long>( \
70 ::__FnName(static_cast<long>(__val), __offset, __width)); \
71 } \
72 inline __device__ unsigned long long __FnName( \
73 unsigned long long __val, __Type __offset, int __width = warpSize) { \
74 return static_cast<unsigned long long>( \
75 ::__FnName(static_cast<long long>(__val), __offset, __width)); \
76 } \
77 inline __device__ double __FnName(double __val, __Type __offset, \
78 int __width = warpSize) { \
79 long long __tmp; \
80 _Static_assert(sizeof(__tmp) == sizeof(__val)); \
81 memcpy(&__tmp, &__val, sizeof(__val)); \
82 __tmp = ::__FnName(__tmp, __offset, __width); \
83 double __ret; \
84 memcpy(&__ret, &__tmp, sizeof(__ret)); \
85 return __ret; \
86 }
87
88__MAKE_SHUFFLES(__shfl, __nvvm_shfl_idx_i32, __nvvm_shfl_idx_f32, 0x1f, int);
89// We use 0 rather than 31 as our mask, because shfl.up applies to lanes >=
90// maxLane.
91__MAKE_SHUFFLES(__shfl_up, __nvvm_shfl_up_i32, __nvvm_shfl_up_f32, 0,
92 unsigned int);
93__MAKE_SHUFFLES(__shfl_down, __nvvm_shfl_down_i32, __nvvm_shfl_down_f32, 0x1f,
94 unsigned int);
95__MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f,
96 int);
97#pragma pop_macro("__MAKE_SHUFFLES")
98
99#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 300
100
101#if CUDA_VERSION >= 9000
102#if (!defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 300)
103// __shfl_sync_* variants available in CUDA-9
104#pragma push_macro("__MAKE_SYNC_SHUFFLES")
105#define __MAKE_SYNC_SHUFFLES(__FnName, __IntIntrinsic, __FloatIntrinsic, \
106 __Mask, __Type) \
107 inline __device__ int __FnName(unsigned int __mask, int __val, \
108 __Type __offset, int __width = warpSize) { \
109 return __IntIntrinsic(__mask, __val, __offset, \
110 ((warpSize - __width) << 8) | (__Mask)); \
111 } \
112 inline __device__ float __FnName(unsigned int __mask, float __val, \
113 __Type __offset, int __width = warpSize) { \
114 return __FloatIntrinsic(__mask, __val, __offset, \
115 ((warpSize - __width) << 8) | (__Mask)); \
116 } \
117 inline __device__ unsigned int __FnName(unsigned int __mask, \
118 unsigned int __val, __Type __offset, \
119 int __width = warpSize) { \
120 return static_cast<unsigned int>( \
121 ::__FnName(__mask, static_cast<int>(__val), __offset, __width)); \
122 } \
123 inline __device__ long long __FnName(unsigned int __mask, long long __val, \
124 __Type __offset, \
125 int __width = warpSize) { \
126 struct __Bits { \
127 int __a, __b; \
128 }; \
129 _Static_assert(sizeof(__val) == sizeof(__Bits)); \
130 _Static_assert(sizeof(__Bits) == 2 * sizeof(int)); \
131 __Bits __tmp; \
132 memcpy(&__tmp, &__val, sizeof(__val)); \
133 __tmp.__a = ::__FnName(__mask, __tmp.__a, __offset, __width); \
134 __tmp.__b = ::__FnName(__mask, __tmp.__b, __offset, __width); \
135 long long __ret; \
136 memcpy(&__ret, &__tmp, sizeof(__tmp)); \
137 return __ret; \
138 } \
139 inline __device__ unsigned long long __FnName( \
140 unsigned int __mask, unsigned long long __val, __Type __offset, \
141 int __width = warpSize) { \
142 return static_cast<unsigned long long>( \
143 ::__FnName(__mask, static_cast<long long>(__val), __offset, __width)); \
144 } \
145 inline __device__ long __FnName(unsigned int __mask, long __val, \
146 __Type __offset, int __width = warpSize) { \
147 _Static_assert(sizeof(long) == sizeof(long long) || \
148 sizeof(long) == sizeof(int)); \
149 if (sizeof(long) == sizeof(long long)) { \
150 return static_cast<long>(::__FnName( \
151 __mask, static_cast<long long>(__val), __offset, __width)); \
152 } else if (sizeof(long) == sizeof(int)) { \
153 return static_cast<long>( \
154 ::__FnName(__mask, static_cast<int>(__val), __offset, __width)); \
155 } \
156 } \
157 inline __device__ unsigned long __FnName( \
158 unsigned int __mask, unsigned long __val, __Type __offset, \
159 int __width = warpSize) { \
160 return static_cast<unsigned long>( \
161 ::__FnName(__mask, static_cast<long>(__val), __offset, __width)); \
162 } \
163 inline __device__ double __FnName(unsigned int __mask, double __val, \
164 __Type __offset, int __width = warpSize) { \
165 long long __tmp; \
166 _Static_assert(sizeof(__tmp) == sizeof(__val)); \
167 memcpy(&__tmp, &__val, sizeof(__val)); \
168 __tmp = ::__FnName(__mask, __tmp, __offset, __width); \
169 double __ret; \
170 memcpy(&__ret, &__tmp, sizeof(__ret)); \
171 return __ret; \
172 }
173__MAKE_SYNC_SHUFFLES(__shfl_sync, __nvvm_shfl_sync_idx_i32,
174 __nvvm_shfl_sync_idx_f32, 0x1f, int);
175// We use 0 rather than 31 as our mask, because shfl.up applies to lanes >=
176// maxLane.
177__MAKE_SYNC_SHUFFLES(__shfl_up_sync, __nvvm_shfl_sync_up_i32,
178 __nvvm_shfl_sync_up_f32, 0, unsigned int);
179__MAKE_SYNC_SHUFFLES(__shfl_down_sync, __nvvm_shfl_sync_down_i32,
180 __nvvm_shfl_sync_down_f32, 0x1f, unsigned int);
181__MAKE_SYNC_SHUFFLES(__shfl_xor_sync, __nvvm_shfl_sync_bfly_i32,
182 __nvvm_shfl_sync_bfly_f32, 0x1f, int);
183#pragma pop_macro("__MAKE_SYNC_SHUFFLES")
184
185inline __device__ void __syncwarp(unsigned int mask = 0xffffffff) {
186 return __nvvm_bar_warp_sync(mask);
187}
188
189inline __device__ void __barrier_sync(unsigned int id) {
190 __nvvm_barrier_sync(id);
191}
192
193inline __device__ void __barrier_sync_count(unsigned int id,
194 unsigned int count) {
195 __nvvm_barrier_sync_cnt(id, count);
196}
197
198inline __device__ int __all_sync(unsigned int mask, int pred) {
199 return __nvvm_vote_all_sync(mask, pred);
200}
201
202inline __device__ int __any_sync(unsigned int mask, int pred) {
203 return __nvvm_vote_any_sync(mask, pred);
204}
205
206inline __device__ int __uni_sync(unsigned int mask, int pred) {
207 return __nvvm_vote_uni_sync(mask, pred);
208}
209
210inline __device__ unsigned int __ballot_sync(unsigned int mask, int pred) {
211 return __nvvm_vote_ballot_sync(mask, pred);
212}
213
214inline __device__ unsigned int __activemask() {
215#if CUDA_VERSION < 9020
216 return __nvvm_vote_ballot(1);
217#else
218 return __nvvm_activemask();
219#endif
220}
221
222inline __device__ unsigned int __fns(unsigned mask, unsigned base, int offset) {
223 return __nvvm_fns(mask, base, offset);
224}
225
226#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 300
227
228// Define __match* builtins CUDA-9 headers expect to see.
229#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 700
230inline __device__ unsigned int __match32_any_sync(unsigned int mask,
231 unsigned int value) {
232 return __nvvm_match_any_sync_i32(mask, value);
233}
234
235inline __device__ unsigned int
236__match64_any_sync(unsigned int mask, unsigned long long value) {
237 return __nvvm_match_any_sync_i64(mask, value);
238}
239
240inline __device__ unsigned int
241__match32_all_sync(unsigned int mask, unsigned int value, int *pred) {
242 return __nvvm_match_all_sync_i32p(mask, value, pred);
243}
244
245inline __device__ unsigned int
246__match64_all_sync(unsigned int mask, unsigned long long value, int *pred) {
247 return __nvvm_match_all_sync_i64p(mask, value, pred);
248}
249#include "crt/sm_70_rt.hpp"
250
251#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 700
252#endif // __CUDA_VERSION >= 9000
253
254// sm_32 intrinsics: __ldg and __funnelshift_{l,lc,r,rc}.
255
256// Prevent the vanilla sm_32 intrinsics header from being included.
257#define __SM_32_INTRINSICS_H__
258#define __SM_32_INTRINSICS_HPP__
259
260#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 320
261
262inline __device__ char __ldg(const char *ptr) { return __nvvm_ldg_c(ptr); }
263inline __device__ short __ldg(const short *ptr) { return __nvvm_ldg_s(ptr); }
264inline __device__ int __ldg(const int *ptr) { return __nvvm_ldg_i(ptr); }
265inline __device__ long __ldg(const long *ptr) { return __nvvm_ldg_l(ptr); }
266inline __device__ long long __ldg(const long long *ptr) {
267 return __nvvm_ldg_ll(ptr);
268}
269inline __device__ unsigned char __ldg(const unsigned char *ptr) {
270 return __nvvm_ldg_uc(ptr);
271}
272inline __device__ signed char __ldg(const signed char *ptr) {
273 return __nvvm_ldg_uc((const unsigned char *)ptr);
274}
275inline __device__ unsigned short __ldg(const unsigned short *ptr) {
276 return __nvvm_ldg_us(ptr);
277}
278inline __device__ unsigned int __ldg(const unsigned int *ptr) {
279 return __nvvm_ldg_ui(ptr);
280}
281inline __device__ unsigned long __ldg(const unsigned long *ptr) {
282 return __nvvm_ldg_ul(ptr);
283}
284inline __device__ unsigned long long __ldg(const unsigned long long *ptr) {
285 return __nvvm_ldg_ull(ptr);
286}
287inline __device__ float __ldg(const float *ptr) { return __nvvm_ldg_f(ptr); }
288inline __device__ double __ldg(const double *ptr) { return __nvvm_ldg_d(ptr); }
289
290inline __device__ char2 __ldg(const char2 *ptr) {
291 typedef char c2 __attribute__((ext_vector_type(2)));
292 // We can assume that ptr is aligned at least to char2's alignment, but the
293 // load will assume that ptr is aligned to char2's alignment. This is only
294 // safe if alignof(c2) <= alignof(char2).
295 c2 rv = __nvvm_ldg_c2(reinterpret_cast<const c2 *>(ptr));
296 char2 ret;
297 ret.x = rv[0];
298 ret.y = rv[1];
299 return ret;
300}
301inline __device__ char4 __ldg(const char4 *ptr) {
302 typedef char c4 __attribute__((ext_vector_type(4)));
303 c4 rv = __nvvm_ldg_c4(reinterpret_cast<const c4 *>(ptr));
304 char4 ret;
305 ret.x = rv[0];
306 ret.y = rv[1];
307 ret.z = rv[2];
308 ret.w = rv[3];
309 return ret;
310}
311inline __device__ short2 __ldg(const short2 *ptr) {
312 typedef short s2 __attribute__((ext_vector_type(2)));
313 s2 rv = __nvvm_ldg_s2(reinterpret_cast<const s2 *>(ptr));
314 short2 ret;
315 ret.x = rv[0];
316 ret.y = rv[1];
317 return ret;
318}
319inline __device__ short4 __ldg(const short4 *ptr) {
320 typedef short s4 __attribute__((ext_vector_type(4)));
321 s4 rv = __nvvm_ldg_s4(reinterpret_cast<const s4 *>(ptr));
322 short4 ret;
323 ret.x = rv[0];
324 ret.y = rv[1];
325 ret.z = rv[2];
326 ret.w = rv[3];
327 return ret;
328}
329inline __device__ int2 __ldg(const int2 *ptr) {
330 typedef int i2 __attribute__((ext_vector_type(2)));
331 i2 rv = __nvvm_ldg_i2(reinterpret_cast<const i2 *>(ptr));
332 int2 ret;
333 ret.x = rv[0];
334 ret.y = rv[1];
335 return ret;
336}
337inline __device__ int4 __ldg(const int4 *ptr) {
338 typedef int i4 __attribute__((ext_vector_type(4)));
339 i4 rv = __nvvm_ldg_i4(reinterpret_cast<const i4 *>(ptr));
340 int4 ret;
341 ret.x = rv[0];
342 ret.y = rv[1];
343 ret.z = rv[2];
344 ret.w = rv[3];
345 return ret;
346}
347inline __device__ longlong2 __ldg(const longlong2 *ptr) {
348 typedef long long ll2 __attribute__((ext_vector_type(2)));
349 ll2 rv = __nvvm_ldg_ll2(reinterpret_cast<const ll2 *>(ptr));
350 longlong2 ret;
351 ret.x = rv[0];
352 ret.y = rv[1];
353 return ret;
354}
355
356inline __device__ uchar2 __ldg(const uchar2 *ptr) {
357 typedef unsigned char uc2 __attribute__((ext_vector_type(2)));
358 uc2 rv = __nvvm_ldg_uc2(reinterpret_cast<const uc2 *>(ptr));
359 uchar2 ret;
360 ret.x = rv[0];
361 ret.y = rv[1];
362 return ret;
363}
364inline __device__ uchar4 __ldg(const uchar4 *ptr) {
365 typedef unsigned char uc4 __attribute__((ext_vector_type(4)));
366 uc4 rv = __nvvm_ldg_uc4(reinterpret_cast<const uc4 *>(ptr));
367 uchar4 ret;
368 ret.x = rv[0];
369 ret.y = rv[1];
370 ret.z = rv[2];
371 ret.w = rv[3];
372 return ret;
373}
374inline __device__ ushort2 __ldg(const ushort2 *ptr) {
375 typedef unsigned short us2 __attribute__((ext_vector_type(2)));
376 us2 rv = __nvvm_ldg_us2(reinterpret_cast<const us2 *>(ptr));
377 ushort2 ret;
378 ret.x = rv[0];
379 ret.y = rv[1];
380 return ret;
381}
382inline __device__ ushort4 __ldg(const ushort4 *ptr) {
383 typedef unsigned short us4 __attribute__((ext_vector_type(4)));
384 us4 rv = __nvvm_ldg_us4(reinterpret_cast<const us4 *>(ptr));
385 ushort4 ret;
386 ret.x = rv[0];
387 ret.y = rv[1];
388 ret.z = rv[2];
389 ret.w = rv[3];
390 return ret;
391}
392inline __device__ uint2 __ldg(const uint2 *ptr) {
393 typedef unsigned int ui2 __attribute__((ext_vector_type(2)));
394 ui2 rv = __nvvm_ldg_ui2(reinterpret_cast<const ui2 *>(ptr));
395 uint2 ret;
396 ret.x = rv[0];
397 ret.y = rv[1];
398 return ret;
399}
400inline __device__ uint4 __ldg(const uint4 *ptr) {
401 typedef unsigned int ui4 __attribute__((ext_vector_type(4)));
402 ui4 rv = __nvvm_ldg_ui4(reinterpret_cast<const ui4 *>(ptr));
403 uint4 ret;
404 ret.x = rv[0];
405 ret.y = rv[1];
406 ret.z = rv[2];
407 ret.w = rv[3];
408 return ret;
409}
410inline __device__ ulonglong2 __ldg(const ulonglong2 *ptr) {
411 typedef unsigned long long ull2 __attribute__((ext_vector_type(2)));
412 ull2 rv = __nvvm_ldg_ull2(reinterpret_cast<const ull2 *>(ptr));
413 ulonglong2 ret;
414 ret.x = rv[0];
415 ret.y = rv[1];
416 return ret;
417}
418
419inline __device__ float2 __ldg(const float2 *ptr) {
420 typedef float f2 __attribute__((ext_vector_type(2)));
421 f2 rv = __nvvm_ldg_f2(reinterpret_cast<const f2 *>(ptr));
422 float2 ret;
423 ret.x = rv[0];
424 ret.y = rv[1];
425 return ret;
426}
427inline __device__ float4 __ldg(const float4 *ptr) {
428 typedef float f4 __attribute__((ext_vector_type(4)));
429 f4 rv = __nvvm_ldg_f4(reinterpret_cast<const f4 *>(ptr));
430 float4 ret;
431 ret.x = rv[0];
432 ret.y = rv[1];
433 ret.z = rv[2];
434 ret.w = rv[3];
435 return ret;
436}
437inline __device__ double2 __ldg(const double2 *ptr) {
438 typedef double d2 __attribute__((ext_vector_type(2)));
439 d2 rv = __nvvm_ldg_d2(reinterpret_cast<const d2 *>(ptr));
440 double2 ret;
441 ret.x = rv[0];
442 ret.y = rv[1];
443 return ret;
444}
445
446// TODO: Implement these as intrinsics, so the backend can work its magic on
447// these. Alternatively, we could implement these as plain C and try to get
448// llvm to recognize the relevant patterns.
449inline __device__ unsigned __funnelshift_l(unsigned low32, unsigned high32,
450 unsigned shiftWidth) {
451 unsigned result;
452 asm("shf.l.wrap.b32 %0, %1, %2, %3;"
453 : "=r"(result)
454 : "r"(low32), "r"(high32), "r"(shiftWidth));
455 return result;
456}
457inline __device__ unsigned __funnelshift_lc(unsigned low32, unsigned high32,
458 unsigned shiftWidth) {
459 unsigned result;
460 asm("shf.l.clamp.b32 %0, %1, %2, %3;"
461 : "=r"(result)
462 : "r"(low32), "r"(high32), "r"(shiftWidth));
463 return result;
464}
465inline __device__ unsigned __funnelshift_r(unsigned low32, unsigned high32,
466 unsigned shiftWidth) {
467 unsigned result;
468 asm("shf.r.wrap.b32 %0, %1, %2, %3;"
469 : "=r"(result)
470 : "r"(low32), "r"(high32), "r"(shiftWidth));
471 return result;
472}
473inline __device__ unsigned __funnelshift_rc(unsigned low32, unsigned high32,
474 unsigned shiftWidth) {
475 unsigned ret;
476 asm("shf.r.clamp.b32 %0, %1, %2, %3;"
477 : "=r"(ret)
478 : "r"(low32), "r"(high32), "r"(shiftWidth));
479 return ret;
480}
481
482#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 320
483
484#if CUDA_VERSION >= 11000
485extern "C" {
486__device__ inline size_t __nv_cvta_generic_to_global_impl(const void *__ptr) {
487 return (size_t)(void __attribute__((address_space(1))) *)__ptr;
488}
489__device__ inline size_t __nv_cvta_generic_to_shared_impl(const void *__ptr) {
490 return (size_t)(void __attribute__((address_space(3))) *)__ptr;
491}
492__device__ inline size_t __nv_cvta_generic_to_constant_impl(const void *__ptr) {
493 return (size_t)(void __attribute__((address_space(4))) *)__ptr;
494}
495__device__ inline size_t __nv_cvta_generic_to_local_impl(const void *__ptr) {
496 return (size_t)(void __attribute__((address_space(5))) *)__ptr;
497}
498__device__ inline void *__nv_cvta_global_to_generic_impl(size_t __ptr) {
499 return (void *)(void __attribute__((address_space(1))) *)__ptr;
500}
501__device__ inline void *__nv_cvta_shared_to_generic_impl(size_t __ptr) {
502 return (void *)(void __attribute__((address_space(3))) *)__ptr;
503}
504__device__ inline void *__nv_cvta_constant_to_generic_impl(size_t __ptr) {
505 return (void *)(void __attribute__((address_space(4))) *)__ptr;
506}
507__device__ inline void *__nv_cvta_local_to_generic_impl(size_t __ptr) {
508 return (void *)(void __attribute__((address_space(5))) *)__ptr;
509}
510__device__ inline cuuint32_t __nvvm_get_smem_pointer(void *__ptr) {
511 return __nv_cvta_generic_to_shared_impl(__ptr);
512}
513} // extern "C"
514
515#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 800
516__device__ inline unsigned __reduce_add_sync(unsigned __mask,
517 unsigned __value) {
518 return __nvvm_redux_sync_add(__mask, __value);
519}
520__device__ inline unsigned __reduce_min_sync(unsigned __mask,
521 unsigned __value) {
522 return __nvvm_redux_sync_umin(__mask, __value);
523}
524__device__ inline unsigned __reduce_max_sync(unsigned __mask,
525 unsigned __value) {
526 return __nvvm_redux_sync_umax(__mask, __value);
527}
528__device__ inline int __reduce_min_sync(unsigned __mask, int __value) {
529 return __nvvm_redux_sync_min(__mask, __value);
530}
531__device__ inline int __reduce_max_sync(unsigned __mask, int __value) {
532 return __nvvm_redux_sync_max(__mask, __value);
533}
534__device__ inline unsigned __reduce_or_sync(unsigned __mask, unsigned __value) {
535 return __nvvm_redux_sync_or(__mask, __value);
536}
537__device__ inline unsigned __reduce_and_sync(unsigned __mask,
538 unsigned __value) {
539 return __nvvm_redux_sync_and(__mask, __value);
540}
541__device__ inline unsigned __reduce_xor_sync(unsigned __mask,
542 unsigned __value) {
543 return __nvvm_redux_sync_xor(__mask, __value);
544}
545
546__device__ inline void __nv_memcpy_async_shared_global_4(void *__dst,
547 const void *__src,
548 unsigned __src_size) {
549 __nvvm_cp_async_ca_shared_global_4(
550 (void __attribute__((address_space(3))) *)__dst,
551 (const void __attribute__((address_space(1))) *)__src, __src_size);
552}
553__device__ inline void __nv_memcpy_async_shared_global_8(void *__dst,
554 const void *__src,
555 unsigned __src_size) {
556 __nvvm_cp_async_ca_shared_global_8(
557 (void __attribute__((address_space(3))) *)__dst,
558 (const void __attribute__((address_space(1))) *)__src, __src_size);
559}
560__device__ inline void __nv_memcpy_async_shared_global_16(void *__dst,
561 const void *__src,
562 unsigned __src_size) {
563 __nvvm_cp_async_ca_shared_global_16(
564 (void __attribute__((address_space(3))) *)__dst,
565 (const void __attribute__((address_space(1))) *)__src, __src_size);
566}
567
568__device__ inline void *
569__nv_associate_access_property(const void *__ptr, unsigned long long __prop) {
570 // TODO: it appears to provide compiler with some sort of a hint. We do not
571 // know what exactly it is supposed to do. However, CUDA headers suggest that
572 // just passing through __ptr should not affect correctness. They do so on
573 // pre-sm80 GPUs where this builtin is not available.
574 return (void*)__ptr;
575}
576#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 800
577
578#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 900
579__device__ inline unsigned __isCtaShared(const void *ptr) {
580 return __isShared(ptr);
581}
582
583__device__ inline unsigned __isClusterShared(const void *__ptr) {
584 return __nvvm_isspacep_shared_cluster(__ptr);
585}
586
587__device__ inline void *__cluster_map_shared_rank(const void *__ptr,
588 unsigned __rank) {
589 return __nvvm_mapa((void *)__ptr, __rank);
590}
591
592__device__ inline unsigned __cluster_query_shared_rank(const void *__ptr) {
593 return __nvvm_getctarank((void *)__ptr);
594}
595
596__device__ inline uint2
597__cluster_map_shared_multicast(const void *__ptr,
598 unsigned int __cluster_cta_mask) {
599 return make_uint2((unsigned)__cvta_generic_to_shared(__ptr),
600 __cluster_cta_mask);
601}
602
603__device__ inline unsigned __clusterDimIsSpecified() {
604 return __nvvm_is_explicit_cluster();
605}
606
607__device__ inline dim3 __clusterDim() {
608 return dim3(__nvvm_read_ptx_sreg_cluster_nctaid_x(),
609 __nvvm_read_ptx_sreg_cluster_nctaid_y(),
610 __nvvm_read_ptx_sreg_cluster_nctaid_z());
611}
612
613__device__ inline dim3 __clusterRelativeBlockIdx() {
614 return dim3(__nvvm_read_ptx_sreg_cluster_ctaid_x(),
615 __nvvm_read_ptx_sreg_cluster_ctaid_y(),
616 __nvvm_read_ptx_sreg_cluster_ctaid_z());
617}
618
619__device__ inline dim3 __clusterGridDimInClusters() {
620 return dim3(__nvvm_read_ptx_sreg_nclusterid_x(),
621 __nvvm_read_ptx_sreg_nclusterid_y(),
622 __nvvm_read_ptx_sreg_nclusterid_z());
623}
624
625__device__ inline dim3 __clusterIdx() {
626 return dim3(__nvvm_read_ptx_sreg_clusterid_x(),
627 __nvvm_read_ptx_sreg_clusterid_y(),
628 __nvvm_read_ptx_sreg_clusterid_z());
629}
630
631__device__ inline unsigned __clusterRelativeBlockRank() {
632 return __nvvm_read_ptx_sreg_cluster_ctarank();
633}
634
635__device__ inline unsigned __clusterSizeInBlocks() {
636 return __nvvm_read_ptx_sreg_cluster_nctarank();
637}
638
639__device__ inline void __cluster_barrier_arrive() {
640 __nvvm_barrier_cluster_arrive();
641}
642
643__device__ inline void __cluster_barrier_arrive_relaxed() {
644 __nvvm_barrier_cluster_arrive_relaxed();
645}
646
647__device__ inline void __cluster_barrier_wait() {
648 __nvvm_barrier_cluster_wait();
649}
650
651__device__ inline void __threadfence_cluster() { __nvvm_fence_sc_cluster(); }
652
653__device__ inline float2 atomicAdd(float2 *__ptr, float2 __val) {
654 float2 __ret;
655 __asm__("atom.add.v2.f32 {%0, %1}, [%2], {%3, %4};"
656 : "=f"(__ret.x), "=f"(__ret.y)
657 : "l"(__ptr), "f"(__val.x), "f"(__val.y));
658 return __ret;
659}
660
661__device__ inline float2 atomicAdd_block(float2 *__ptr, float2 __val) {
662 float2 __ret;
663 __asm__("atom.cta.add.v2.f32 {%0, %1}, [%2], {%3, %4};"
664 : "=f"(__ret.x), "=f"(__ret.y)
665 : "l"(__ptr), "f"(__val.x), "f"(__val.y));
666 return __ret;
667}
668
669__device__ inline float2 atomicAdd_system(float2 *__ptr, float2 __val) {
670 float2 __ret;
671 __asm__("atom.sys.add.v2.f32 {%0, %1}, [%2], {%3, %4};"
672 : "=f"(__ret.x), "=f"(__ret.y)
673 : "l"(__ptr), "f"(__val.x), "f"(__val.y));
674 return __ret;
675}
676
677__device__ inline float4 atomicAdd(float4 *__ptr, float4 __val) {
678 float4 __ret;
679 __asm__("atom.add.v4.f32 {%0, %1, %2, %3}, [%4], {%5, %6, %7, %8};"
680 : "=f"(__ret.x), "=f"(__ret.y), "=f"(__ret.z), "=f"(__ret.w)
681 : "l"(__ptr), "f"(__val.x), "f"(__val.y), "f"(__val.z), "f"(__val.w));
682 return __ret;
683}
684
685__device__ inline float4 atomicAdd_block(float4 *__ptr, float4 __val) {
686 float4 __ret;
687 __asm__(
688 "atom.cta.add.v4.f32 {%0, %1, %2, %3}, [%4], {%5, %6, %7, %8};"
689 : "=f"(__ret.x), "=f"(__ret.y), "=f"(__ret.z), "=f"(__ret.w)
690 : "l"(__ptr), "f"(__val.x), "f"(__val.y), "f"(__val.z), "f"(__val.w));
691 return __ret;
692}
693
694__device__ inline float4 atomicAdd_system(float4 *__ptr, float4 __val) {
695 float4 __ret;
696 __asm__(
697 "atom.sys.add.v4.f32 {%0, %1, %2, %3}, [%4], {%5, %6, %7, %8};"
698 : "=f"(__ret.x), "=f"(__ret.y), "=f"(__ret.z), "=f"(__ret.w)
699 : "l"(__ptr), "f"(__val.x), "f"(__val.y), "f"(__val.z), "f"(__val.w)
700 :);
701 return __ret;
702}
703
704#endif // !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 900
705#endif // CUDA_VERSION >= 11000
706
707#endif // defined(__CLANG_CUDA_INTRINSICS_H__)
__funnelshift_lc
__device__ unsigned __funnelshift_lc(unsigned low32, unsigned high32, unsigned shiftWidth)
Definition: __clang_cuda_intrinsics.h:457
__funnelshift_rc
__device__ unsigned __funnelshift_rc(unsigned low32, unsigned high32, unsigned shiftWidth)
Definition: __clang_cuda_intrinsics.h:473
__MAKE_SHUFFLES
#define __MAKE_SHUFFLES(__FnName, __IntIntrinsic, __FloatIntrinsic, __Mask, __Type)
Definition: __clang_cuda_intrinsics.h:23
__funnelshift_r
__device__ unsigned __funnelshift_r(unsigned low32, unsigned high32, unsigned shiftWidth)
Definition: __clang_cuda_intrinsics.h:465
__ldg
__device__ char __ldg(const char *ptr)
Definition: __clang_cuda_intrinsics.h:262
__funnelshift_l
__device__ unsigned __funnelshift_l(unsigned low32, unsigned high32, unsigned shiftWidth)
Definition: __clang_cuda_intrinsics.h:449
__attribute__
_Float16 __2f16 __attribute__((ext_vector_type(2)))
Zeroes the upper 128 bits (bits 255:128) of all YMM registers.
Definition: __clang_hip_libdevice_declares.h:293
__device__
#define __device__
Definition: __llvm_offload.h:13
__src
static __inline__ void const void * __src
Definition: movdirintrin.h:45
__value
static __inline__ void unsigned int __value
Definition: movdirintrin.h:20
hlsl::uint2
vector< uint, 2 > uint2
Definition: hlsl_basic_types.h:69
hlsl::float4
vector< float, 4 > float4
Definition: hlsl_basic_types.h:96
hlsl::float2
vector< float, 2 > float2
Definition: hlsl_basic_types.h:94
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