1 //===- Intrinsics.td - Defines all LLVM intrinsics ---------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by Chris Lattner and is distributed under the
6 // University of Illinois Open Source 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 //===----------------------------------------------------------------------===//
52 // Types used by intrinsics.
53 //===----------------------------------------------------------------------===//
55 class LLVMType<ValueType vt, string typeval> {
57 string TypeVal = typeval;
60 class LLVMPackedType<ValueType VT, int numelts, LLVMType elty>
61 : LLVMType<VT, "Type::PackedTyID">{
62 int NumElts = numelts;
66 def llvm_void_ty : LLVMType<isVoid, "Type::VoidTyID">;
67 def llvm_i1_ty : LLVMType<i1 , "Type::Int1TyID">;
68 def llvm_i8_ty : LLVMType<i8 , "Type::Int8TyID">;
69 def llvm_i16_ty : LLVMType<i16, "Type::Int16TyID">;
70 def llvm_i32_ty : LLVMType<i32, "Type::Int32TyID">;
71 def llvm_i64_ty : LLVMType<i64, "Type::Int64TyID">;
72 def llvm_float_ty : LLVMType<f32, "Type::FloatTyID">;
73 def llvm_double_ty : LLVMType<f64, "Type::DoubleTyID">;
74 def llvm_ptr_ty : LLVMType<iPTR, "Type::PointerTyID">; // sbyte*
75 def llvm_ptrptr_ty : LLVMType<iPTR, "Type::PointerTyID">; // sbyte**
76 def llvm_descriptor_ty : LLVMType<iPTR, "Type::PointerTyID">; // global*
78 def llvm_v16i8_ty : LLVMPackedType<v16i8,16, llvm_i8_ty>; // 16 x sbyte
79 def llvm_v8i16_ty : LLVMPackedType<v8i16, 8, llvm_i16_ty>; // 8 x short
81 def llvm_v2i64_ty : LLVMPackedType<v2i64, 2, llvm_i64_ty>; // 2 x long
82 def llvm_v2i32_ty : LLVMPackedType<v2i32, 2, llvm_i32_ty>; // 2 x int
83 def llvm_v4i32_ty : LLVMPackedType<v4i32, 4, llvm_i32_ty>; // 4 x int
84 def llvm_v4f32_ty : LLVMPackedType<v4f32, 4, llvm_float_ty>; // 4 x float
85 def llvm_v2f64_ty : LLVMPackedType<v2f64, 2, llvm_double_ty>; // 2 x double
87 //===----------------------------------------------------------------------===//
88 // Intrinsic Definitions.
89 //===----------------------------------------------------------------------===//
91 // Intrinsic class - This is used to define one LLVM intrinsic. The name of the
92 // intrinsic definition should start with "int_", then match the LLVM intrinsic
93 // name with the "llvm." prefix removed, and all "."s turned into "_"s. For
94 // example, llvm.bswap.i16 -> int_bswap_i16.
96 // * Types is a list containing the return type and the argument types
97 // expected for the intrinsic.
98 // * Properties can be set to describe the behavior of the intrinsic.
100 class Intrinsic<list<LLVMType> types,
101 list<IntrinsicProperty> properties = [],
103 string LLVMName = name;
104 string TargetPrefix = ""; // Set to a prefix for target-specific intrinsics.
105 list<LLVMType> Types = types;
106 list<IntrinsicProperty> Properties = properties;
109 /// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
110 /// specifies the name of the builtin. This provides automatic CBE and CFE
112 class GCCBuiltin<string name> {
113 string GCCBuiltinName = name;
117 //===--------------- Variable Argument Handling Intrinsics ----------------===//
120 def int_vastart : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty], [], "llvm.va_start">;
121 def int_vacopy : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty, llvm_ptrptr_ty], [],
123 def int_vaend : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty], [], "llvm.va_end">;
125 //===------------------- Garbage Collection Intrinsics --------------------===//
127 def int_gcroot : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty, llvm_ptr_ty]>;
128 def int_gcread : Intrinsic<[llvm_ptr_ty, llvm_ptr_ty, llvm_ptrptr_ty],
130 def int_gcwrite : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
131 llvm_ptrptr_ty], [IntrWriteArgMem]>;
133 //===--------------------- Code Generator Intrinsics ----------------------===//
135 def int_returnaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
136 def int_frameaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
137 def int_stacksave : Intrinsic<[llvm_ptr_ty], [IntrReadMem]>;
138 def int_stackrestore : Intrinsic<[llvm_void_ty, llvm_ptr_ty]>;
139 def int_prefetch : Intrinsic<[llvm_void_ty, llvm_ptr_ty,
140 llvm_i32_ty, llvm_i32_ty]>;
141 def int_pcmarker : Intrinsic<[llvm_void_ty, llvm_i32_ty]>;
143 def int_readcyclecounter : Intrinsic<[llvm_i64_ty]>;
145 //===------------------- Standard C Library Intrinsics --------------------===//
148 let Properties = [IntrWriteArgMem] in {
149 def int_memcpy_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
150 llvm_i32_ty, llvm_i32_ty]>;
151 def int_memcpy_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
152 llvm_i64_ty, llvm_i32_ty]>;
153 def int_memmove_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
154 llvm_i32_ty, llvm_i32_ty]>;
155 def int_memmove_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
156 llvm_i64_ty, llvm_i32_ty]>;
157 def int_memset_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
158 llvm_i32_ty, llvm_i32_ty]>;
159 def int_memset_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
160 llvm_i64_ty, llvm_i32_ty]>;
163 let Properties = [IntrNoMem] in {
164 def int_sqrt_f32 : Intrinsic<[llvm_float_ty , llvm_float_ty]>;
165 def int_sqrt_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty]>;
167 def int_powi_f32 : Intrinsic<[llvm_float_ty , llvm_float_ty, llvm_i32_ty]>;
168 def int_powi_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty, llvm_i32_ty]>;
171 // NOTE: these are internal interfaces.
172 def int_setjmp : Intrinsic<[llvm_i32_ty , llvm_ptr_ty]>;
173 def int_longjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
174 def int_sigsetjmp : Intrinsic<[llvm_i32_ty , llvm_ptr_ty, llvm_i32_ty]>;
175 def int_siglongjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
177 //===-------------------- Bit Manipulation Intrinsics ---------------------===//
180 // None of these intrinsics accesses memory at all.
181 let Properties = [IntrNoMem] in {
182 def int_bswap_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
183 def int_bswap_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
184 def int_bswap_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
186 def int_ctpop_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
187 def int_ctpop_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
188 def int_ctpop_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
189 def int_ctpop_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
191 def int_ctlz_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
192 def int_ctlz_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
193 def int_ctlz_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
194 def int_ctlz_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
196 def int_cttz_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
197 def int_cttz_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
198 def int_cttz_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
199 def int_cttz_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
202 //===------------------------ Debugger Intrinsics -------------------------===//
205 def int_dbg_stoppoint : Intrinsic<[llvm_void_ty,
206 llvm_i32_ty, llvm_i32_ty,
207 llvm_descriptor_ty]>;
208 def int_dbg_region_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
209 def int_dbg_region_end : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
210 def int_dbg_func_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
211 def int_dbg_declare : Intrinsic<[llvm_void_ty, llvm_ptr_ty,
212 llvm_descriptor_ty]>;
214 //===----------------------------------------------------------------------===//
215 // Target-specific intrinsics
216 //===----------------------------------------------------------------------===//
218 include "llvm/IntrinsicsPowerPC.td"
219 include "llvm/IntrinsicsX86.td"