middle-end/1557: Regrename macro not documented

[rodrigc@gcc.gnu.org]

Synopsis: Regrename macro not documented

State-Changed-From-To: open->closed
State-Changed-By: rodrigc
State-Changed-When: Sat Feb 23 15:57:59 2002
State-Changed-Why:
    RENAME_EXTENDED_BLOCKS macro removed:
    2002-01-05  Craig Rodrigues  <crodrigu@bbn.com>
     
            PR middle-end/1557
            * config/ia64/ia64.h (RENAME_EXTENDED_BLOCKS): Remove.
    
    
    More documentation for HARD_REGNO_RENAME_OK added, for
    example in arm.h:
    /* Interrupt functions can only use registers that have already been
       saved by the prologue, even if they would normally be
       call-clobbered.  */
    #define HARD_REGNO_RENAME_OK(SRC, DST)

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=1557