[Bug c/38091] New: [Patch] H8SX: Bit instructions enhancement

[Bug c/38091] New: [Patch] H8SX: Bit instructions enhancement

[prafullat at kpitcummins dot com]

Hi,

H8SX target supports generation of bit instructions in memory addressing mode.
However, these instructions are not getting generated and the bits in memory
are operated using other instructions which consume more memory. The 
attached patch "h8sx.patch" generates these bit instructions and hence 
generates optimized code. 

Regards,
Prafulla Thakare
http://www.kpitgnutools.com


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           Summary: [Patch] H8SX: Bit instructions enhancement
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: prafullat at kpitcummins dot com
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: h8300*-unknown-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug c/38091] [Patch] H8SX: Bit instructions enhancement

[prafullat at kpitcummins dot com]

------- Comment #1 from prafullat at kpitcummins dot com  2008-11-12 10:09 -------
Created an attachment (id=16660)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16660&action=view)
Patch for bit insn enhancement


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[steven at gcc dot gnu dot org]

------- Comment #2 from steven at gcc dot gnu dot org  2009-06-04 12:53 -------
This is one of the "GCC 4.5 pending patches". Since we are in stage 1, now is a
good time to submit this patch.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[prafullat at kpitcummins dot com]

------- Comment #3 from prafullat at kpitcummins dot com  2009-06-26 13:12 -------
There is no change to this patch for gcc-4.5-20090402. 
Do we I still need to repost it?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-06-26 13:51 -------
patches need to be sent to gcc-patches@gcc.gnu.org together with a ChangeLog
entry that follows existing practice and a note on how the patch was tested.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[prafullat at kpitcummins dot com]

------- Comment #5 from prafullat at kpitcummins dot com  2009-06-26 13:54 -------
Ok, I will do that asap.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[steven at gcc dot gnu dot org]

------- Comment #6 from steven at gcc dot gnu dot org  2010-01-08 09:06 -------
Ping?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[prafullat at kpitcummins dot com]

------- Comment #7 from prafullat at kpitcummins dot com  2010-01-22 07:47 -------
We have now posted the updated patch here,
http://gcc.gnu.org/ml/gcc-patches/2010-01/msg01141.html

It seems this patch fixes 272 regressions on the H8SX target and overall it
fixes 525 regressions.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[law at redhat dot com]

------- Comment #8 from law at redhat dot com  2010-02-24 20:50 -------
Just a note.  I'm going to make the 4.6 pending patches depend on this bug. 
The patches from 2008-11-12 and Jan 2010 will need updating as it should no
longer be necessary to reject REGs for insv/extv on the H8/SX.   See PR 32693
for details.


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law at redhat dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |41998
              nThis|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091

[Bug target/38091] [Patch] H8SX: Bit instructions enhancement

[law at redhat dot com]

------- Comment #9 from law at redhat dot com  2010-05-04 04:57 -------
patch was installed


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law at redhat dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38091