//===-- 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
#ifndef LLVM_INTRINSICS_H
#define LLVM_INTRINSICS_H
+/// LLVMIntrinsic 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 LLVMIntrinsic {
enum ID {
not_intrinsic = 0, // Must be zero
- va_start, // Used to represent a va_start call in C
- va_end, // Used to represent a va_end call in C
- va_copy, // Used to represent a va_copy call in C
+
+ // Varargs handling intrinsics...
+ va_start, // Used to implement the va_start macro in C
+ va_end, // Used to implement the va_end macro in C
+ va_copy, // Used to implement the va_copy macro in C
+
+ // 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
+
+ //===------------------------------------------------------------------===//
+ // 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
};
}
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