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//===-- llvm/Instrinsics.h - LLVM Intrinsic Function Handling ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines a set of enums which allow processing of intrinsic
// functions. Values of these enum types are returned by
// Function::getIntrinsicID.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_INTRINSICS_H
#define LLVM_INTRINSICS_H
namespace llvm {
/// Intrinsic Namespace - This namespace contains an enum with a value for
/// every intrinsic/builtin function known by LLVM. These enum values are
/// returned by Function::getIntrinsicID().
///
namespace Intrinsic {
enum ID {
not_intrinsic = 0, // Must be zero
// Varargs handling intrinsics.
vastart, // Used to implement the va_start macro in C
vaend, // Used to implement the va_end macro in C
vacopy, // Used to implement the va_copy macro in C
// Code generator intrinsics.
returnaddress, // Yields the return address of a dynamic call frame
frameaddress, // Yields the frame address of a dynamic call frame
// setjmp/longjmp intrinsics.
setjmp, // Used to represent a setjmp call in C
longjmp, // Used to represent a longjmp call in C
sigsetjmp, // Used to represent a sigsetjmp call in C
siglongjmp, // Used to represent a siglongjmp call in C
// Garbage Collection intrinsics.
gcroot, // Defines a new GC root on the stack
gcread, // Defines a read of a heap object (for read barriers)
gcwrite, // Defines a write to a heap object (for write barriers)
// Debugging intrinsics.
dbg_stoppoint, // Represents source lines and breakpointable places
dbg_region_start, // Start of a region
dbg_region_end, // End of a region
dbg_func_start, // Start of a function
dbg_declare, // Declare a local object
// Standard libc functions.
memcpy, // Copy non-overlapping memory blocks
memmove, // Copy potentially overlapping memory blocks
memset, // Fill memory with a byte value
// libm related functions.
isunordered, // Return true if either argument is a NaN
// Input/Output intrinsics.
readport,
writeport,
readio,
writeio,
//===------------------------------------------------------------------===//
// This section defines intrinsic functions used to represent Alpha
// instructions.
//
alpha_ctlz, // CTLZ (count leading zero): counts the number of leading
// zeros in the given ulong value
alpha_cttz, // CTTZ (count trailing zero): counts the number of trailing
// zeros in the given ulong value
alpha_ctpop, // CTPOP (count population): counts the number of ones in
// the given ulong value
alpha_umulh, // UMULH (unsigned multiply quadword high): Takes two 64-bit
// (ulong) values, and returns the upper 64 bits of their
// 128 bit product as a ulong
alpha_vecop, // A generic vector operation. This function is used to
// represent various Alpha vector/multimedia instructions.
// It takes 4 parameters:
// - the first two are 2 ulong vectors
// - the third (uint) is the size (in bytes) of each
// vector element. Thus a value of 1 means that the two
// input vectors consist of 8 bytes
// - the fourth (uint) is the operation to be performed on
// the vectors. Its possible values are defined in the
// enumeration AlphaVecOps.
alpha_pup, // A pack/unpack operation. This function is used to
// represent Alpha pack/unpack operations.
// It takes 3 parameters:
// - the first is an ulong to pack/unpack
// - the second (uint) is the size of each component
// Valid values are 2 (word) or 4 (longword)
// - the third (uint) is the operation to be performed.
// Possible values defined in the enumeration
// AlphaPupOps
alpha_bytezap, // This intrinsic function takes two parameters: a ulong
// (64-bit) value and a ubyte value, and returns a ulong.
// Each bit in the ubyte corresponds to a byte in the
// ulong. If the bit is 0, the byte in the output equals
// the corresponding byte in the input, else the byte in
// the output is zero.
alpha_bytemanip,// This intrinsic function represents all Alpha byte
// manipulation instructions. It takes 3 parameters:
// - The first two are ulong inputs to operate on
// - The third (uint) is the operation to perform.
// Possible values defined in the enumeration
// AlphaByteManipOps
alpha_dfpbop, // This intrinsic function represents Alpha instructions
// that operate on two doubles and return a double. The
// first two parameters are the two double values to
// operate on, and the third is a uint that specifies the
// operation to perform. Its possible values are defined in
// the enumeration AlphaFloatingBinaryOps
alpha_dfpuop, // This intrinsic function represents operation on a single
// double precision floating point value. The first
// paramters is the value and the second is the operation.
// The possible values for the operations are defined in the
// enumeration AlphaFloatingUnaryOps
alpha_unordered,// This intrinsic function tests if two double precision
// floating point values are unordered. It has two
// parameters: the two values to be tested. It return a
// boolean true if the two are unordered, else false.
alpha_uqtodfp, // A generic function that converts a ulong to a double.
// How the conversion is performed is specified by the
// second parameter, the possible values for which are
// defined in the AlphaUqToDfpOps enumeration
alpha_uqtosfp, // A generic function that converts a ulong to a float.
// How the conversion is performed is specified by the
// second parameter, the possible values for which are
// defined in the AlphaUqToSfpOps enumeration
alpha_dfptosq, // A generic function that converts double to a long.
// How the conversion is performed is specified by the
// second parameter, the possible values for which are
// defined in the AlphaDfpToSqOps enumeration
alpha_sfptosq, // A generic function that converts a float to a long.
// How the conversion is performed is specified by the
// second parameter, the possible values for which are
// defined in the AlphaSfpToSq enumeration
};
} // End Intrinsic namespace
} // End llvm namespace
#endif
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