[Bug target/21623] New: [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[Bug target/21623] New: [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[dank at kegel dot com]

Using crosstool-0.34, building glibc-2.3.5 on sh4 is ok with gcc-3.4.3, 
fails with gcc-4.0.0.  The attached reduced testcase shows the error:

foo2.i: In function 'plural_eval':
foo2.i:78: error: insn does not satisfy its constraints:
(insn 190 188 275 24 (set (reg/v:SI 76 fr12 [orig:169 n ] [169])
        (reg:SI 147 t)) 129 {movsi_ie} (insn_list:REG_DEP_TRUE 188 (nil))
    (nil))
foo2.i:78: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:391

-- 
           Summary: [4.0 regression] ICE in reload_cse_simplify_operands, at
                    postreload.c:391
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dank at kegel dot com
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: sh4-unknown-gnu-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623

[Bug target/21623] [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[dank at kegel dot com]

------- Additional Comments From dank at kegel dot com  2005-05-17 14:33 -------
Created an attachment (id=8911)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8911&action=view)
reduced source from glibc-2.3.5


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623

[Bug target/21623] [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-30 12:11 -------
*** Bug 22246 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sieb at sscd dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623

[Bug target/21623] [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.0.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623

[Bug target/21623] [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
 GCC target triplet|sh4-unknown-gnu-linux       |sh4-*-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623

[Bug target/21623] [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.0.2                       |4.0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623

[Bug target/21623] [4.0 regression] ICE in reload_cse_simplify_operands, at postreload.c:391

[kkojima at gcc dot gnu dot org]

------- Comment #3 from kkojima at gcc dot gnu dot org  2005-10-03 22:28 -------
This PR was discussed at the thread of gcc-patches list statring
with http://gcc.gnu.org/ml/gcc-patches/2005-09/msg01527.html and
Joern pointed out that we must improve the reload infrastrucure to
fix this PR.  There is an argument about whether it's appropriate
for stage3 or not.  I've checked in the patch in
http://gcc.gnu.org/ml/gcc-patches/2005-09/msg01952.html
as a temporary workwround on mainline and 4.0-branch under Joern's
approval.  It gets rid of the ICEs for the testcase, though it
doesn't fix the real problem.  So please don't close this PR ATM.


-- 

kkojima at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kkojima at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21623