Re: [Bug-gmp] Bugreport

[Juergen Weiss]

Torbjorn Granlund writes:
 > "Richard B. Kreckel" <address@hidden> writes:
 > 
 >   Jürgen Weiss <address@hidden> asked me to forward this tiny patch to
 >   you to make the alpha cyclc counter work in gmp-3.1/tune.
 > 
 > It works already for me.  In what way does it not work for you?

Sorry, for the misunderstanding.

1. On alphas HAVE_NATIVE_mpn_invert_limb is not defined, though 
   a. it exists
   b. in the Changelog 
        2000-04-26 
        (HAVE_NATIVE_*): Loosen up the regexp to "PROLOGUE.*" so as to
        accept PROLOGUE_GP on alpha.

       but the change has not been done.

    The change should be

*** configure~  Thu Aug  3 04:16:19 2000
--- configure   Tue Aug 29 14:58:23 2000
***************
*** 4446,4452 ****
            # that multi-function files get grepped here repeatedly
            gmp_ep="`
              sed -n 's/^[      ]*MULFUNC_PROLOGUE(\(.*\))/\1/p' $tmp_file ;
!             sed -n 's/^[      ]*PROLOGUE(\(.*\))/\1/p' $tmp_file
            `"
            for gmp_tmp in $gmp_ep; do
              cat >>confdefs.h <<EOF
--- 4446,4452 ----
            # that multi-function files get grepped here repeatedly
            gmp_ep="`
              sed -n 's/^[      ]*MULFUNC_PROLOGUE(\(.*\))/\1/p' $tmp_file ;
!             sed -n 's/^[      ]*PROLOGUE.*(\(.*\))/\1/p' $tmp_file
            `"
            for gmp_tmp in $gmp_ep; do
              cat >>confdefs.h <<EOF

2. According the alpha reference manual and practical test, only
   32 bits are incremented by hardware. The operating system
   scheduler uses the other 32 bits to save an offset, which
   when added in later, gives a correct per process cycle
   count (The actual counter part cannot be set).

LEAF(rpcc,0)
        rpcc    a0
        sll     a0,32,v0
        addq    a0,v0,v0
        srl     v0,32,v0
        ret     zero,(ra),0x1
END(rpcc)

  
Greetings

Jürgen Weiß

-- 
Juergen Weiss         | Universitaet Mainz, Zentrum f"ur Datenverarbeitung,
address@hidden    | 55099 Mainz, Tel: 06131/39-26361, FAX: 06131/39-26407