------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-07-28 
11:56 -------
Subject: Bug 12142

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-07-28 11:55:58

Modified files:
        gcc            : ChangeLog cse.c 

Log message:
        PR rtl-optimization/18992
        Back out this patch:
        2003-10-08  John David Anglin  <[EMAIL PROTECTED]>
        PR optimization/12142
        * cse.c (count_reg_usage): In a SET with a REG SET_DEST, count the
        uses of the register in the SET_SRC.  Remove unnecessary argument.
        
        Replace it with this:
        * cse.c (count_reg_usage): In INSN, JUMP_INSN and CALL_INSN cases,
        if flag_non_call_exceptions is set and the insn may trap, pass
        pc_rtx as dest for recursion.
        In SET_SRC part of SET case, if dest is already set, pass it down
        unchanged.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9579&r2=2.9580
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cse.c.diff?cvsroot=gcc&r1=1.357&r2=1.358



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12142

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