Class AstGlobalRead


  • public class AstGlobalRead
    extends SSAGetInstruction
    A read of a global variable denoted by a FieldReference
    • Constructor Detail

      • AstGlobalRead

        public AstGlobalRead​(int iindex,
                             int lhs,
                             FieldReference global)
    • Method Detail

      • copyForSSA

        public SSAInstruction copyForSSA​(SSAInstructionFactory insts,
                                         int[] defs,
                                         int[] uses)
        Description copied from class: SSAInstruction
        This method is meant to be used during SSA conversion for an IR that is not in SSA form. It creates a new SSAInstruction of the same type as the receiver, with a combination of the receiver's uses and defs and those from the method parameters. In particular, if the 'defs' parameter is null, then the new instruction has the same defs as the receiver. If 'defs' is not null, it must be an array with a size equal to the number of defs that the receiver instruction has. In this case, the new instruction has defs taken from the array. The uses of the new instruction work in the same way with the 'uses' parameter. Note that this only applies to CAst-based IR translation, since Java bytecode-based IR generation uses a different SSA construction mechanism. TODO: move this into the SSAInstructionFactory
        Overrides:
        copyForSSA in class SSAGetInstruction
      • isFallThrough

        public boolean isFallThrough()
        Overrides:
        isFallThrough in class SSAGetInstruction
        Returns:
        true iff this instruction may fall through to the next
      • getGlobalName

        public String getGlobalName()