[Bug middle-end/13335] New: cse of sub-expressions of zero_extend/sign_extend expressions

[Bug middle-end/13335] New: cse of sub-expressions of zero_extend/sign_extend expressions

[dje at gcc dot gnu dot org]

http://gcc.gnu.org/ml/gcc-patches/2003-11/msg01611.html

-- 
           Summary: cse of sub-expressions of zero_extend/sign_extend
                    expressions
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dje at gcc dot gnu dot org
                CC: fjahanian at apple dot com,gcc-bugs at gcc dot gnu dot
                    org
 GCC build triplet: powerpc-apple-darwin
  GCC host triplet: powerpc-apple-darwin
GCC target triplet: powerpc-apple-darwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug middle-end/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-06 19:54 -------
Confirmed, if this patch is not accepted for 3.4, there is no need for it for 3.5 (for tree-ssa) as the 
testcase is optimized already at the tree level where you do not have the problems of the register 
sizes.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |patch, pessimizes-code
   Last reconfirmed|0000-00-00 00:00:00         |2003-12-06 19:54:12
               date|                            |
   Target Milestone|---                         |3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug middle-end/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[fjahanian at apple dot com]

------- Additional Comments From fjahanian at apple dot com  2003-12-06 19:58 -------
tree-ssa fixes the small test case. But the large file in vortex still fails. This patch is still needed 
and a revised versionb is being  reviewed at this time.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug middle-end/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug middle-end/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-20 04:12 -------
The patch is Fariborz's.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |fjahanian at apple dot com
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug optimization/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2004-01-17 08:14 -------
Is the original patch posted for this still awaiting review, or did you have plans to send an updated 
version?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug optimization/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[dje at watson dot ibm dot com]

------- Additional Comments From dje at watson dot ibm dot com  2004-01-17 17:13 -------
Subject: Re:  cse of sub-expressions of zero_extend/sign_extend expressions 

>>>>> dhazeghi at yahoo dot com writes:

Dara> Is the original patch posted for this still awaiting review, or did
Dara> you have plans to send an updated version?

	Yes, it still is awaiting review.

David


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335

[Bug optimization/13335] cse of sub-expressions of zero_extend/sign_extend expressions

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-16 16:27 -------
Pushing this one off to 3.4.1.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.0                       |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13335