This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[PATCH] for Re: REG_FREQ


Hello,

> > I have noticed that REG_FREQ is not zeroed anywhere; it means that
> > frequencies are just accumulating into it during multiple calls to
> > recompute_reg_usage. Is that intentional? I so, what is the rationale?
> 
> No, it is not intentional nor rational.  Please just zero it out.
> I wonder why it works quite well as it is :))

OK, commited as obvious.

Zdenek

Changelog:
   * flow.c (allocate_reg_life_data): Reset REG_FREQ.

Index: flow.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/flow.c,v
retrieving revision 1.542
diff -c -3 -p -r1.542 flow.c
*** flow.c	16 Dec 2002 18:19:27 -0000	1.542
--- flow.c	20 Dec 2002 00:48:49 -0000
*************** allocate_reg_life_data ()
*** 1529,1534 ****
--- 1529,1535 ----
        REG_N_DEATHS (i) = 0;
        REG_N_CALLS_CROSSED (i) = 0;
        REG_LIVE_LENGTH (i) = 0;
+       REG_FREQ (i) = 0;
        REG_BASIC_BLOCK (i) = REG_BLOCK_UNKNOWN;
      }
  }


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]