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373d2bccea
Implement the arbitrary bit-width integer feature. The feature allows integers of any bitwidth (up to 64) to be defined instead of just 1, 8, 16, 32, and 64 bit integers. This change does several things: 1. Introduces a new Derived Type, IntegerType, to represent the number of bits in an integer. The Type classes SubclassData field is used to store the number of bits. This allows 2^23 bits in an integer type. 2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and 64-bit integers. These are replaced with just IntegerType which is not a primitive any more. 3. Adjust the rest of LLVM to account for this change. Note that while this incremental change lays the foundation for arbitrary bit-width integers, LLVM has not yet been converted to actually deal with them in any significant way. Most optimization passes, for example, will still only deal with the byte-width integer types. Future increments will rectify this situation. llvm-svn: 33113
224 lines
9.9 KiB
TableGen
224 lines
9.9 KiB
TableGen
//===- Intrinsics.td - Defines all LLVM intrinsics ---------*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Chris Lattner and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines properties of all LLVM intrinsics.
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//
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//===----------------------------------------------------------------------===//
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include "llvm/CodeGen/ValueTypes.td"
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//===----------------------------------------------------------------------===//
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// Properties we keep track of for intrinsics.
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//===----------------------------------------------------------------------===//
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class IntrinsicProperty;
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// Intr*Mem - Memory properties. An intrinsic is allowed to have exactly one of
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// these properties set. They are listed from the most aggressive (best to use
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// if correct) to the least aggressive. If no property is set, the worst case
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// is assumed (IntrWriteMem).
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// IntrNoMem - The intrinsic does not access memory or have any other side
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// effects. It may be CSE'd deleted if dead, etc.
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def IntrNoMem : IntrinsicProperty;
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// IntrReadArgMem - This intrinsic reads only from memory that one of its
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// arguments points to, but may read an unspecified amount.
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def IntrReadArgMem : IntrinsicProperty;
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// IntrReadMem - This intrinsic reads from unspecified memory, so it cannot be
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// moved across stores. However, it can be reordered otherwise and can be
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// deleted if dead.
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def IntrReadMem : IntrinsicProperty;
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// IntrWriteArgMem - This intrinsic reads and writes only from memory that one
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// of its arguments points to, but may access an unspecified amount. It has no
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// other side effects. This may only be used if the intrinsic doesn't "capture"
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// the argument pointer (e.g. storing it someplace).
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def IntrWriteArgMem : IntrinsicProperty;
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// IntrWriteMem - This intrinsic may read or modify unspecified memory or has
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// other side effects. It cannot be modified by the optimizer. This is the
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// default if the intrinsic has no other Intr*Mem property.
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def IntrWriteMem : IntrinsicProperty;
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//===----------------------------------------------------------------------===//
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// Types used by intrinsics.
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//===----------------------------------------------------------------------===//
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class LLVMType<ValueType vt, string typeval> {
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ValueType VT = vt;
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string TypeVal = typeval;
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}
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class LLVMIntegerType<ValueType VT, int width>
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: LLVMType<VT, "Type::IntegerTyID"> {
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int Width = width;
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}
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class LLVMPackedType<ValueType VT, int numelts, LLVMType elty>
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: LLVMType<VT, "Type::PackedTyID">{
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int NumElts = numelts;
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LLVMType ElTy = elty;
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}
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def llvm_void_ty : LLVMType<isVoid, "Type::VoidTyID">;
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def llvm_bool_ty : LLVMIntegerType<i1, 1>;
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def llvm_i8_ty : LLVMIntegerType<i8 , 8>;
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def llvm_i16_ty : LLVMIntegerType<i16, 16>;
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def llvm_i32_ty : LLVMIntegerType<i32, 32>;
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def llvm_i64_ty : LLVMIntegerType<i64, 64>;
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def llvm_float_ty : LLVMType<f32, "Type::FloatTyID">;
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def llvm_double_ty : LLVMType<f64, "Type::DoubleTyID">;
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def llvm_ptr_ty : LLVMType<iPTR, "Type::PointerTyID">; // i8*
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def llvm_ptrptr_ty : LLVMType<iPTR, "Type::PointerTyID">; // i8**
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def llvm_descriptor_ty : LLVMType<iPTR, "Type::PointerTyID">; // global*
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def llvm_v16i8_ty : LLVMPackedType<v16i8,16, llvm_i8_ty>; // 16 x i8
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def llvm_v8i16_ty : LLVMPackedType<v8i16, 8, llvm_i16_ty>; // 8 x i16
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def llvm_v2i64_ty : LLVMPackedType<v2i64, 2, llvm_i64_ty>; // 2 x i64
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def llvm_v2i32_ty : LLVMPackedType<v2i32, 2, llvm_i32_ty>; // 2 x i32
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def llvm_v4i32_ty : LLVMPackedType<v4i32, 4, llvm_i32_ty>; // 4 x i32
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def llvm_v4f32_ty : LLVMPackedType<v4f32, 4, llvm_float_ty>; // 4 x float
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def llvm_v2f64_ty : LLVMPackedType<v2f64, 2, llvm_double_ty>;// 2 x double
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//===----------------------------------------------------------------------===//
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// Intrinsic Definitions.
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//===----------------------------------------------------------------------===//
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// Intrinsic class - This is used to define one LLVM intrinsic. The name of the
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// intrinsic definition should start with "int_", then match the LLVM intrinsic
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// name with the "llvm." prefix removed, and all "."s turned into "_"s. For
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// example, llvm.bswap.i16 -> int_bswap_i16.
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//
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// * Types is a list containing the return type and the argument types
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// expected for the intrinsic.
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// * Properties can be set to describe the behavior of the intrinsic.
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//
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class Intrinsic<list<LLVMType> types,
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list<IntrinsicProperty> properties = [],
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string name = ""> {
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string LLVMName = name;
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string TargetPrefix = ""; // Set to a prefix for target-specific intrinsics.
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list<LLVMType> Types = types;
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list<IntrinsicProperty> Properties = properties;
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}
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/// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
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/// specifies the name of the builtin. This provides automatic CBE and CFE
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/// support.
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class GCCBuiltin<string name> {
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string GCCBuiltinName = name;
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}
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//===--------------- Variable Argument Handling Intrinsics ----------------===//
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//
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def int_vastart : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty], [], "llvm.va_start">;
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def int_vacopy : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty, llvm_ptrptr_ty], [],
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"llvm.va_copy">;
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def int_vaend : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty], [], "llvm.va_end">;
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//===------------------- Garbage Collection Intrinsics --------------------===//
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//
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def int_gcroot : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty, llvm_ptr_ty]>;
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def int_gcread : Intrinsic<[llvm_ptr_ty, llvm_ptr_ty, llvm_ptrptr_ty],
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[IntrReadArgMem]>;
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def int_gcwrite : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_ptrptr_ty], [IntrWriteArgMem]>;
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//===--------------------- Code Generator Intrinsics ----------------------===//
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//
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def int_returnaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
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def int_frameaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
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def int_stacksave : Intrinsic<[llvm_ptr_ty], [IntrReadMem]>;
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def int_stackrestore : Intrinsic<[llvm_void_ty, llvm_ptr_ty]>;
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def int_prefetch : Intrinsic<[llvm_void_ty, llvm_ptr_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_pcmarker : Intrinsic<[llvm_void_ty, llvm_i32_ty]>;
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def int_readcyclecounter : Intrinsic<[llvm_i64_ty]>;
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//===------------------- Standard C Library Intrinsics --------------------===//
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//
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let Properties = [IntrWriteArgMem] in {
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def int_memcpy_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_memcpy_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i64_ty, llvm_i32_ty]>;
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def int_memmove_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_memmove_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
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llvm_i64_ty, llvm_i32_ty]>;
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def int_memset_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
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llvm_i32_ty, llvm_i32_ty]>;
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def int_memset_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
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llvm_i64_ty, llvm_i32_ty]>;
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}
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let Properties = [IntrNoMem] in {
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def int_sqrt_f32 : Intrinsic<[llvm_float_ty , llvm_float_ty]>;
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def int_sqrt_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty]>;
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def int_powi_f32 : Intrinsic<[llvm_float_ty , llvm_float_ty, llvm_i32_ty]>;
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def int_powi_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty, llvm_i32_ty]>;
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}
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// NOTE: these are internal interfaces.
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def int_setjmp : Intrinsic<[llvm_i32_ty , llvm_ptr_ty]>;
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def int_longjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
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def int_sigsetjmp : Intrinsic<[llvm_i32_ty , llvm_ptr_ty, llvm_i32_ty]>;
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def int_siglongjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
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//===-------------------- Bit Manipulation Intrinsics ---------------------===//
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//
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// None of these intrinsics accesses memory at all.
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let Properties = [IntrNoMem] in {
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def int_bswap_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_bswap_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_bswap_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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def int_ctpop_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
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def int_ctpop_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_ctpop_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_ctpop_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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def int_ctlz_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
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def int_ctlz_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_ctlz_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_ctlz_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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def int_cttz_i8 : Intrinsic<[llvm_i8_ty, llvm_i8_ty]>;
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def int_cttz_i16 : Intrinsic<[llvm_i16_ty, llvm_i16_ty]>;
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def int_cttz_i32 : Intrinsic<[llvm_i32_ty, llvm_i32_ty]>;
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def int_cttz_i64 : Intrinsic<[llvm_i64_ty, llvm_i64_ty]>;
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}
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//===------------------------ Debugger Intrinsics -------------------------===//
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//
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def int_dbg_stoppoint : Intrinsic<[llvm_void_ty,
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llvm_i32_ty, llvm_i32_ty,
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llvm_descriptor_ty]>;
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def int_dbg_region_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
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def int_dbg_region_end : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
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def int_dbg_func_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
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def int_dbg_declare : Intrinsic<[llvm_void_ty, llvm_ptr_ty,
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llvm_descriptor_ty]>;
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//===----------------------------------------------------------------------===//
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// Target-specific intrinsics
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//===----------------------------------------------------------------------===//
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include "llvm/IntrinsicsPowerPC.td"
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include "llvm/IntrinsicsX86.td"
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