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llvm-mirror/include/llvm/Intrinsics.h

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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
stacksave, // Save the stack pointer
stackrestore, // Restore the stack pointer
prefetch, // Prefetch a value into the cache
pcmarker, // Export a PC from near the marker
readcyclecounter, // Read cycle counter register
// 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.
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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
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dbg_declare, // Declare a local object
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// Standard C library intrinsics.
memcpy, // Copy non-overlapping memory blocks
memmove, // Copy potentially overlapping memory blocks
memset, // Fill memory with a byte value
isunordered_f32,// Return true if either float argument is a NaN
isunordered_f64,// Return true if either double argument is a NaN
sqrt_f32, // Square root of float
sqrt_f64, // Square root of double
// Bit manipulation instrinsics.
bswap_i16, // Byteswap 16 bits
bswap_i32, // Byteswap 32 bits
bswap_i64, // Byteswap 64 bits
ctpop_i8, // Count population of sbyte
ctpop_i16, // Count population of short
ctpop_i32, // Count population of int
ctpop_i64, // Count population of long
ctlz_i8, // Count leading zeros of sbyte
ctlz_i16, // Count leading zeros of short
ctlz_i32, // Count leading zeros of int
ctlz_i64, // Count leading zeros of long
cttz_i8, // Count trailing zeros of sbyte
cttz_i16, // Count trailing zeros of short
cttz_i32, // Count trailing zeros of int
cttz_i64, // Count trailing zeros of long
// Input/Output intrinsics.
readport,
writeport,
readio,
writeio
};
} // End Intrinsic namespace
} // End llvm namespace
#endif