enum ID {
not_intrinsic = 0, // Must be zero
- // 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
+ // 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
- // Setjmp/Longjmp intrinsics...
+ // 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...
+ // instructions.
//
alpha_ctlz, // CTLZ (count leading zero): counts the number of leading
// zeros in the given ulong value