1 //===-- llvm/Instrinsics.h - LLVM Intrinsic Function Handling ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines a set of enums which allow processing of intrinsic
11 // functions. Values of these enum types are returned by
12 // Function::getIntrinsicID.
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_INTRINSICS_H
17 #define LLVM_INTRINSICS_H
21 /// Intrinsic Namespace - This namespace contains an enum with a value for
22 /// every intrinsic/builtin function known by LLVM. These enum values are
23 /// returned by Function::getIntrinsicID().
27 not_intrinsic = 0, // Must be zero
29 // Varargs handling intrinsics.
30 vastart, // Used to implement the va_start macro in C
31 vaend, // Used to implement the va_end macro in C
32 vacopy, // Used to implement the va_copy macro in C
34 // Code generator intrinsics.
35 returnaddress, // Yields the return address of a dynamic call frame
36 frameaddress, // Yields the frame address of a dynamic call frame
37 stacksave, // Save the stack pointer
38 stackrestore, // Restore the stack pointer
39 prefetch, // Prefetch a value into the cache
40 pcmarker, // Export a PC from near the marker
41 readcyclecounter, // Read cycle counter register
43 // setjmp/longjmp intrinsics.
44 setjmp, // Used to represent a setjmp call in C
45 longjmp, // Used to represent a longjmp call in C
46 sigsetjmp, // Used to represent a sigsetjmp call in C
47 siglongjmp, // Used to represent a siglongjmp call in C
49 // Garbage Collection intrinsics.
50 gcroot, // Defines a new GC root on the stack
51 gcread, // Defines a read of a heap object (for read barriers)
52 gcwrite, // Defines a write to a heap object (for write barriers)
54 // Debugging intrinsics.
55 dbg_stoppoint, // Represents source lines and breakpointable places
56 dbg_region_start, // Start of a region
57 dbg_region_end, // End of a region
58 dbg_func_start, // Start of a function
59 dbg_declare, // Declare a local object
61 // Standard C library intrinsics.
62 memcpy, // Copy non-overlapping memory blocks
63 memmove, // Copy potentially overlapping memory blocks
64 memset, // Fill memory with a byte value
65 isunordered, // Return true if either argument is a NaN
68 // Bit manipulation instrinsics.
69 bswap_i16, // Byteswap 16 bits
70 bswap_i32, // Byteswap 32 bits
71 bswap_i64, // Byteswap 64 bits
72 ctpop, // Count population
73 ctlz, // Count leading zeros
74 cttz, // Count trailing zeros
76 // Input/Output intrinsics.
84 } // End Intrinsic namespace
86 } // End llvm namespace