* doc/tree-ssa.texi (gimple_phi_result): Document.
       (gimple_phi_num_args, gimple_phi_arg): Likewise.
       (gimple_phi_arg_edge, gimple_phi_arg_def): Likewise.
       (PHI_RESULT, PHI_NUM_ARGS): Remove.
       (PHI_ARG_ELT, PHI_ARG_EDGE, PHI_ARG_DEF): Likewise.

From-SVN: r204169