1 //===- Intrinsics.td - Defines all LLVM intrinsics ---------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines properties of all LLVM intrinsics.
12 //===----------------------------------------------------------------------===//
14 include "llvm/CodeGen/ValueTypes.td"
16 //===----------------------------------------------------------------------===//
17 // Properties we keep track of for intrinsics.
18 //===----------------------------------------------------------------------===//
20 class IntrinsicProperty;
22 // Intr*Mem - Memory properties. An intrinsic is allowed to have exactly one of
23 // these properties set. They are listed from the most aggressive (best to use
24 // if correct) to the least aggressive. If no property is set, the worst case
25 // is assumed (IntrWriteMem).
27 // IntrNoMem - The intrinsic does not access memory or have any other side
28 // effects. It may be CSE'd deleted if dead, etc.
29 def IntrNoMem : IntrinsicProperty;
31 // IntrReadArgMem - This intrinsic reads only from memory that one of its
32 // arguments points to, but may read an unspecified amount.
33 def IntrReadArgMem : IntrinsicProperty;
35 // IntrReadMem - This intrinsic reads from unspecified memory, so it cannot be
36 // moved across stores. However, it can be reordered otherwise and can be
38 def IntrReadMem : IntrinsicProperty;
40 // IntrWriteArgMem - This intrinsic reads and writes only from memory that one
41 // of its arguments points to, but may access an unspecified amount. It has no
42 // other side effects. This may only be used if the intrinsic doesn't "capture"
43 // the argument pointer (e.g. storing it someplace).
44 def IntrWriteArgMem : IntrinsicProperty;
46 // IntrWriteMem - This intrinsic may read or modify unspecified memory or has
47 // other side effects. It cannot be modified by the optimizer. This is the
48 // default if the intrinsic has no other Intr*Mem property.
49 def IntrWriteMem : IntrinsicProperty;
51 // Commutative - This intrinsic is commutative: X op Y == Y op X.
52 def Commutative : IntrinsicProperty;
54 //===----------------------------------------------------------------------===//
55 // Types used by intrinsics.
56 //===----------------------------------------------------------------------===//
58 class LLVMType<ValueType vt> {
62 class LLVMPointerType<LLVMType elty>
67 class LLVMAnyPointerType<LLVMType elty>
72 class LLVMMatchType<int num>
77 def llvm_void_ty : LLVMType<isVoid>;
78 def llvm_anyint_ty : LLVMType<iAny>;
79 def llvm_anyfloat_ty : LLVMType<fAny>;
80 def llvm_i1_ty : LLVMType<i1>;
81 def llvm_i8_ty : LLVMType<i8>;
82 def llvm_i16_ty : LLVMType<i16>;
83 def llvm_i32_ty : LLVMType<i32>;
84 def llvm_i64_ty : LLVMType<i64>;
85 def llvm_float_ty : LLVMType<f32>;
86 def llvm_double_ty : LLVMType<f64>;
87 def llvm_f80_ty : LLVMType<f80>;
88 def llvm_f128_ty : LLVMType<f128>;
89 def llvm_ppcf128_ty : LLVMType<ppcf128>;
90 def llvm_ptr_ty : LLVMPointerType<llvm_i8_ty>; // i8*
91 def llvm_ptrptr_ty : LLVMPointerType<llvm_ptr_ty>; // i8**
92 def llvm_anyptr_ty : LLVMAnyPointerType<llvm_i8_ty>; // (space)i8*
93 def llvm_empty_ty : LLVMType<OtherVT>; // { }
94 def llvm_descriptor_ty : LLVMPointerType<llvm_empty_ty>; // { }*
96 def llvm_v16i8_ty : LLVMType<v16i8>; // 16 x i8
97 def llvm_v8i16_ty : LLVMType<v8i16>; // 8 x i16
98 def llvm_v2i64_ty : LLVMType<v2i64>; // 2 x i64
99 def llvm_v2i32_ty : LLVMType<v2i32>; // 2 x i32
100 def llvm_v1i64_ty : LLVMType<v1i64>; // 1 x i64
101 def llvm_v4i32_ty : LLVMType<v4i32>; // 4 x i32
102 def llvm_v4f32_ty : LLVMType<v4f32>; // 4 x float
103 def llvm_v2f64_ty : LLVMType<v2f64>; // 2 x double
106 def llvm_v8i8_ty : LLVMType<v8i8>; // 8 x i8
107 def llvm_v4i16_ty : LLVMType<v4i16>; // 4 x i16
109 def llvm_vararg_ty : LLVMType<isVoid>; // this means vararg here
111 //===----------------------------------------------------------------------===//
112 // Intrinsic Definitions.
113 //===----------------------------------------------------------------------===//
115 // Intrinsic class - This is used to define one LLVM intrinsic. The name of the
116 // intrinsic definition should start with "int_", then match the LLVM intrinsic
117 // name with the "llvm." prefix removed, and all "."s turned into "_"s. For
118 // example, llvm.bswap.i16 -> int_bswap_i16.
120 // * RetTypes is a list containing the return types expected for the
122 // * ParamTypes is a list containing the parameter types expected for the
124 // * Properties can be set to describe the behavior of the intrinsic.
126 class Intrinsic<list<LLVMType> ret_types,
127 list<LLVMType> param_types = [],
128 list<IntrinsicProperty> properties = [],
130 string LLVMName = name;
131 string TargetPrefix = ""; // Set to a prefix for target-specific intrinsics.
132 list<LLVMType> RetTypes = ret_types;
133 list<LLVMType> ParamTypes = param_types;
134 list<IntrinsicProperty> Properties = properties;
137 /// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
138 /// specifies the name of the builtin. This provides automatic CBE and CFE
140 class GCCBuiltin<string name> {
141 string GCCBuiltinName = name;
145 //===--------------- Variable Argument Handling Intrinsics ----------------===//
148 def int_vastart : Intrinsic<[llvm_void_ty], [llvm_ptr_ty], [], "llvm.va_start">;
149 def int_vacopy : Intrinsic<[llvm_void_ty], [llvm_ptr_ty, llvm_ptr_ty], [],
151 def int_vaend : Intrinsic<[llvm_void_ty], [llvm_ptr_ty], [], "llvm.va_end">;
153 //===------------------- Garbage Collection Intrinsics --------------------===//
155 def int_gcroot : Intrinsic<[llvm_void_ty],
156 [llvm_ptrptr_ty, llvm_ptr_ty]>;
157 def int_gcread : Intrinsic<[llvm_ptr_ty],
158 [llvm_ptr_ty, llvm_ptrptr_ty],
160 def int_gcwrite : Intrinsic<[llvm_void_ty],
161 [llvm_ptr_ty, llvm_ptr_ty, llvm_ptrptr_ty],
164 //===--------------------- Code Generator Intrinsics ----------------------===//
166 def int_returnaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>;
167 def int_frameaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>;
169 // Note: we treat stacksave/stackrestore as writemem because we don't otherwise
170 // model their dependencies on allocas.
171 def int_stacksave : Intrinsic<[llvm_ptr_ty]>,
172 GCCBuiltin<"__builtin_stack_save">;
173 def int_stackrestore : Intrinsic<[llvm_void_ty], [llvm_ptr_ty]>,
174 GCCBuiltin<"__builtin_stack_restore">;
176 // IntrWriteArgMem is more pessimistic than strictly necessary for prefetch,
177 // however it does conveniently prevent the prefetch from being reordered
178 // with respect to nearby accesses to the same memory.
179 def int_prefetch : Intrinsic<[llvm_void_ty],
180 [llvm_ptr_ty, llvm_i32_ty, llvm_i32_ty],
182 def int_pcmarker : Intrinsic<[llvm_void_ty], [llvm_i32_ty]>;
184 def int_readcyclecounter : Intrinsic<[llvm_i64_ty]>;
186 // Stack Protector Intrinsic - The stackprotector intrinsic writes the stack
187 // guard to the correct place on the stack frame.
188 def int_stackprotector : Intrinsic<[llvm_void_ty],
189 [llvm_ptr_ty, llvm_ptrptr_ty],
192 //===------------------- Standard C Library Intrinsics --------------------===//
195 let Properties = [IntrWriteArgMem] in {
196 def int_memcpy_i16 : Intrinsic<[llvm_void_ty],
197 [llvm_ptr_ty, llvm_ptr_ty,
198 llvm_i16_ty, llvm_i16_ty]>;
199 def int_memcpy_i32 : Intrinsic<[llvm_void_ty],
200 [llvm_ptr_ty, llvm_ptr_ty,
201 llvm_i32_ty, llvm_i32_ty]>;
202 def int_memcpy_i64 : Intrinsic<[llvm_void_ty],
203 [llvm_ptr_ty, llvm_ptr_ty,
204 llvm_i64_ty, llvm_i32_ty]>;
205 def int_memmove_i16 : Intrinsic<[llvm_void_ty],
206 [llvm_ptr_ty, llvm_ptr_ty,
207 llvm_i16_ty, llvm_i16_ty]>;
208 def int_memmove_i32 : Intrinsic<[llvm_void_ty],
209 [llvm_ptr_ty, llvm_ptr_ty,
210 llvm_i32_ty, llvm_i32_ty]>;
211 def int_memmove_i64 : Intrinsic<[llvm_void_ty],
212 [llvm_ptr_ty, llvm_ptr_ty,
213 llvm_i64_ty, llvm_i32_ty]>;
214 def int_memset_i16 : Intrinsic<[llvm_void_ty],
215 [llvm_ptr_ty, llvm_i8_ty,
216 llvm_i16_ty, llvm_i16_ty]>;
217 def int_memset_i32 : Intrinsic<[llvm_void_ty],
218 [llvm_ptr_ty, llvm_i8_ty,
219 llvm_i32_ty, llvm_i32_ty]>;
220 def int_memset_i64 : Intrinsic<[llvm_void_ty],
221 [llvm_ptr_ty, llvm_i8_ty,
222 llvm_i64_ty, llvm_i32_ty]>;
225 // These functions do not actually read memory, but they are sensitive to the
226 // rounding mode. This needs to be modelled separately; in the meantime
227 // declaring them as reading memory is conservatively correct.
228 let Properties = [IntrReadMem] in {
229 def int_sqrt : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
230 def int_powi : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>, llvm_i32_ty]>;
231 def int_sin : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
232 def int_cos : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
233 def int_pow : Intrinsic<[llvm_anyfloat_ty],
234 [LLVMMatchType<0>, LLVMMatchType<0>]>;
235 def int_log : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
236 def int_log10: Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
237 def int_log2 : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
238 def int_exp : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
239 def int_exp2 : Intrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]>;
242 // NOTE: these are internal interfaces.
243 def int_setjmp : Intrinsic<[llvm_i32_ty], [llvm_ptr_ty]>;
244 def int_longjmp : Intrinsic<[llvm_void_ty], [llvm_ptr_ty, llvm_i32_ty]>;
245 def int_sigsetjmp : Intrinsic<[llvm_i32_ty] , [llvm_ptr_ty, llvm_i32_ty]>;
246 def int_siglongjmp : Intrinsic<[llvm_void_ty], [llvm_ptr_ty, llvm_i32_ty]>;
248 //===-------------------- Bit Manipulation Intrinsics ---------------------===//
251 // None of these intrinsics accesses memory at all.
252 let Properties = [IntrNoMem] in {
253 def int_bswap: Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>]>;
254 def int_ctpop: Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>]>;
255 def int_ctlz : Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>]>;
256 def int_cttz : Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>]>;
257 def int_part_select : Intrinsic<[llvm_anyint_ty],
258 [LLVMMatchType<0>, llvm_i32_ty, llvm_i32_ty]>;
259 def int_part_set : Intrinsic<[llvm_anyint_ty],
260 [LLVMMatchType<0>, llvm_anyint_ty,
261 llvm_i32_ty, llvm_i32_ty]>;
264 //===------------------------ Debugger Intrinsics -------------------------===//
267 def int_dbg_stoppoint : Intrinsic<[llvm_void_ty],
268 [llvm_i32_ty, llvm_i32_ty,
269 llvm_descriptor_ty]>;
270 def int_dbg_region_start : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
271 def int_dbg_region_end : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
272 def int_dbg_func_start : Intrinsic<[llvm_void_ty], [llvm_descriptor_ty]>;
273 def int_dbg_declare : Intrinsic<[llvm_void_ty],
274 [llvm_descriptor_ty, llvm_descriptor_ty]>;
276 //===------------------ Exception Handling Intrinsics----------------------===//
278 def int_eh_exception : Intrinsic<[llvm_ptr_ty]>;
279 def int_eh_selector_i32 : Intrinsic<[llvm_i32_ty],
280 [llvm_ptr_ty, llvm_ptr_ty, llvm_vararg_ty]>;
281 def int_eh_selector_i64 : Intrinsic<[llvm_i64_ty],
282 [llvm_ptr_ty, llvm_ptr_ty, llvm_vararg_ty]>;
284 def int_eh_typeid_for_i32 : Intrinsic<[llvm_i32_ty], [llvm_ptr_ty]>;
285 def int_eh_typeid_for_i64 : Intrinsic<[llvm_i64_ty], [llvm_ptr_ty]>;
287 def int_eh_return_i32 : Intrinsic<[llvm_void_ty], [llvm_i32_ty, llvm_ptr_ty]>;
288 def int_eh_return_i64 : Intrinsic<[llvm_void_ty], [llvm_i64_ty, llvm_ptr_ty]>;
290 def int_eh_unwind_init: Intrinsic<[llvm_void_ty]>,
291 GCCBuiltin<"__builtin_unwind_init">;
293 def int_eh_dwarf_cfa : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty]>;
295 //===---------------- Generic Variable Attribute Intrinsics----------------===//
297 def int_var_annotation : Intrinsic<[llvm_void_ty],
298 [llvm_ptr_ty, llvm_ptr_ty,
299 llvm_ptr_ty, llvm_i32_ty],
300 [], "llvm.var.annotation">;
301 def int_ptr_annotation : Intrinsic<[LLVMAnyPointerType<llvm_anyint_ty>],
302 [LLVMMatchType<0>, llvm_ptr_ty, llvm_ptr_ty,
304 [], "llvm.ptr.annotation">;
305 def int_annotation : Intrinsic<[llvm_anyint_ty],
306 [LLVMMatchType<0>, llvm_ptr_ty,
307 llvm_ptr_ty, llvm_i32_ty],
308 [], "llvm.annotation">;
310 //===------------------------ Trampoline Intrinsics -----------------------===//
312 def int_init_trampoline : Intrinsic<[llvm_ptr_ty],
313 [llvm_ptr_ty, llvm_ptr_ty, llvm_ptr_ty],
315 GCCBuiltin<"__builtin_init_trampoline">;
317 //===------------------------ Overflow Intrinsics -------------------------===//
320 // Expose the carry flag from add operations on two integrals.
321 def int_sadd_with_overflow : Intrinsic<[llvm_anyint_ty, llvm_i1_ty],
322 [LLVMMatchType<0>, LLVMMatchType<0>]>;
323 def int_uadd_with_overflow : Intrinsic<[llvm_anyint_ty, llvm_i1_ty],
324 [LLVMMatchType<0>, LLVMMatchType<0>]>;
326 //===------------------------- Atomic Intrinsics --------------------------===//
328 def int_memory_barrier : Intrinsic<[llvm_void_ty],
329 [llvm_i1_ty, llvm_i1_ty,
330 llvm_i1_ty, llvm_i1_ty, llvm_i1_ty], []>,
331 GCCBuiltin<"__builtin_llvm_memory_barrier">;
333 def int_atomic_cmp_swap : Intrinsic<[llvm_anyint_ty],
334 [LLVMAnyPointerType<LLVMMatchType<0>>,
335 LLVMMatchType<0>, LLVMMatchType<0>],
337 GCCBuiltin<"__sync_val_compare_and_swap">;
338 def int_atomic_load_add : Intrinsic<[llvm_anyint_ty],
339 [LLVMAnyPointerType<LLVMMatchType<0>>,
342 GCCBuiltin<"__sync_fetch_and_add">;
343 def int_atomic_swap : Intrinsic<[llvm_anyint_ty],
344 [LLVMAnyPointerType<LLVMMatchType<0>>,
347 GCCBuiltin<"__sync_lock_test_and_set">;
348 def int_atomic_load_sub : Intrinsic<[llvm_anyint_ty],
349 [LLVMAnyPointerType<LLVMMatchType<0>>,
352 GCCBuiltin<"__sync_fetch_and_sub">;
353 def int_atomic_load_and : Intrinsic<[llvm_anyint_ty],
354 [LLVMAnyPointerType<LLVMMatchType<0>>,
357 GCCBuiltin<"__sync_fetch_and_and">;
358 def int_atomic_load_or : Intrinsic<[llvm_anyint_ty],
359 [LLVMAnyPointerType<LLVMMatchType<0>>,
362 GCCBuiltin<"__sync_fetch_and_or">;
363 def int_atomic_load_xor : Intrinsic<[llvm_anyint_ty],
364 [LLVMAnyPointerType<LLVMMatchType<0>>,
367 GCCBuiltin<"__sync_fetch_and_xor">;
368 def int_atomic_load_nand : Intrinsic<[llvm_anyint_ty],
369 [LLVMAnyPointerType<LLVMMatchType<0>>,
372 GCCBuiltin<"__sync_fetch_and_nand">;
373 def int_atomic_load_min : Intrinsic<[llvm_anyint_ty],
374 [LLVMAnyPointerType<LLVMMatchType<0>>,
377 GCCBuiltin<"__sync_fetch_and_min">;
378 def int_atomic_load_max : Intrinsic<[llvm_anyint_ty],
379 [LLVMAnyPointerType<LLVMMatchType<0>>,
382 GCCBuiltin<"__sync_fetch_and_max">;
383 def int_atomic_load_umin : Intrinsic<[llvm_anyint_ty],
384 [LLVMAnyPointerType<LLVMMatchType<0>>,
387 GCCBuiltin<"__sync_fetch_and_umin">;
388 def int_atomic_load_umax : Intrinsic<[llvm_anyint_ty],
389 [LLVMAnyPointerType<LLVMMatchType<0>>,
392 GCCBuiltin<"__sync_fetch_and_umax">;
394 //===-------------------------- Other Intrinsics --------------------------===//
396 def int_flt_rounds : Intrinsic<[llvm_i32_ty]>,
397 GCCBuiltin<"__builtin_flt_rounds">;
398 def int_trap : Intrinsic<[llvm_void_ty]>,
399 GCCBuiltin<"__builtin_trap">;
401 // These convert intrinsics are to support various conversions between
402 // various types with rounding and saturation. NOTE: avoid using these
403 // intrinsics as they might be removed sometime in the future and
404 // most targets don't support them.
405 def int_convertff : Intrinsic<[llvm_anyfloat_ty],
406 [llvm_anyfloat_ty, llvm_i32_ty, llvm_i32_ty]>;
407 def int_convertfsi : Intrinsic<[llvm_anyfloat_ty],
408 [llvm_anyint_ty, llvm_i32_ty, llvm_i32_ty]>;
409 def int_convertfui : Intrinsic<[llvm_anyfloat_ty],
410 [llvm_anyint_ty, llvm_i32_ty, llvm_i32_ty]>;
411 def int_convertsif : Intrinsic<[llvm_anyint_ty],
412 [llvm_anyfloat_ty, llvm_i32_ty, llvm_i32_ty]>;
413 def int_convertuif : Intrinsic<[llvm_anyint_ty],
414 [llvm_anyfloat_ty, llvm_i32_ty, llvm_i32_ty]>;
415 def int_convertss : Intrinsic<[llvm_anyint_ty],
416 [llvm_anyint_ty, llvm_i32_ty, llvm_i32_ty]>;
417 def int_convertsu : Intrinsic<[llvm_anyint_ty],
418 [llvm_anyint_ty, llvm_i32_ty, llvm_i32_ty]>;
419 def int_convertus : Intrinsic<[llvm_anyint_ty],
420 [llvm_anyint_ty, llvm_i32_ty, llvm_i32_ty]>;
421 def int_convertuu : Intrinsic<[llvm_anyint_ty],
422 [llvm_anyint_ty, llvm_i32_ty, llvm_i32_ty]>;
424 //===----------------------------------------------------------------------===//
425 // Target-specific intrinsics
426 //===----------------------------------------------------------------------===//
428 include "llvm/IntrinsicsPowerPC.td"
429 include "llvm/IntrinsicsX86.td"
430 include "llvm/IntrinsicsARM.td"
431 include "llvm/IntrinsicsCellSPU.td"
432 include "llvm/IntrinsicsAlpha.td"
433 include "llvm/IntrinsicsXCore.td"