Value class llvm download

Null is returned if the indices are invalid for the specified type. This class uses low bit of the subclassdata field to indicate whether or not this is a tail call. Internally, this converts both arguments into their llvm assembly representations and compares the resultant strings. This uses the subclassdata field in value to store whether or not the load is volatile definition at line 169 of file instructions. The rest of the bits hold the calling convention of the call.

These binaries include clang, lld, compilerrt, various llvm tools, etc. It is a good idea to download the source for llvm and have a look at. Values stored in llvm memory must be integers, floating point, pointers, vectors. Value is the super class of other important classes such as instruction and function. Llvm ir is strongly typed so expect to be told when you do something wrong. The value s original name is name and has linkage of type linkage. The llvm compiler infrastructure provides a powerful way to optimize. Llvm download page git access if youd like access to the latest and greatest in llvm development, please see the instructions for accessing the llvm git repository. An llvm module class is the toplevel container for all other llvm ir objects. You will write a liveness dataflow analysis from which you will produce a histogram of simultaneously live values. It is the base class of all values computed by a program that may be used as operands to other.

It supports traversing all of the uses for a particular value definition. Many nodes return multiple values, from loads which define a token and a return value to addc which returns a result and a carry value, to calls which may return an arbitrary number of values. Use the constant keyword to declare a constant followed by the type and the value. Classes or structs are often passed around by value, implicitly cloning the. In conjunction with the previous method, this can be used to determine whether an insertion caused the valuemap to reallocate definition at line 221 of file valuemap. Decaf compiler they all return a pointer to a subclass of llvmvalue. It also supports jumping directly to the used value when we arrive from the users operands, and jumping directly to the user when we arrive from the value s uses. Unlike llvm values, selection dag nodes may return multiple values as the result of a computation.

Return the modified name for a global value suitable to be used as the key for a global lookup e. It is the base class of all values computed by a program that may be used as operands to other values. Because stringref carries a length with it, it safely handles strings with embedded nul characters in it, getting the length does not. Create a working compiler with the llvm framework, part 2 ibm. The value class is the most important base class in llvm. Function in turn is derived from the value class defined in value. A use represents the edge between a value definition and its users this is notionally a twodimensional linked list.