[Bug rtl-optimization/32776] New: ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[Bug rtl-optimization/32776] New: ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[rask at sygehus dot dk]

The attached (slightly reduced) test case causes an ICE:
$ ./xgcc -B./ -S -o /dev/null -O2 /tmp/delta/dtoa-00-o.c.
[several warnings]
/tmp/delta/dtoa-00-o.c:23: internal compiler error: RTL check: expected code
'reg', have 'concatn' in rhs_regno, at rtl.h:972

I'm using revision 126676. These are my configure flags:
--target m32c-unknown-elf --with-newlib --enable-sim --disable-gdb
--disable-nls --disable-multilib --enable-languages=c,c++
--enable-cxx-flags=-O2 --enable-checking=yes,rtl


-- 
           Summary: ICE RTL check: expected code 'reg', have 'concatn' in
                    rhs_regno, at rtl.h:972
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rask at sygehus dot dk
GCC target triplet: m32c-unknown-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32776

[Bug rtl-optimization/32776] ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[rask at sygehus dot dk]

------- Comment #1 from rask at sygehus dot dk  2007-07-16 11:25 -------
Created an attachment (id=13920)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13920&action=view)
Slightly reduced test case


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32776

[Bug rtl-optimization/32776] ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[rask at sygehus dot dk]

------- Comment #2 from rask at sygehus dot dk  2007-07-16 11:34 -------
The test case was derived from newlib, btw.


-- 

rask at sygehus dot dk changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|build                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32776

[Bug rtl-optimization/32776] ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-checking
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32776

[Bug rtl-optimization/32776] [4.3 Regression] ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[ian at gcc dot gnu dot org]

------- Comment #3 from ian at gcc dot gnu dot org  2007-08-07 22:44 -------
Subject: Bug 32776

Author: ian
Date: Tue Aug  7 22:43:55 2007
New Revision: 127282

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127282
Log:
        PR rtl-optimization/32776
        * lower-subreg.c (resolve_clobber): Call resolve_reg_notes.
        (resolve_use): Likewise.
        (decompose_multiword_subregs): Remove "changed" local variable.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lower-subreg.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32776

[Bug rtl-optimization/32776] [4.3 Regression] ICE RTL check: expected code 'reg', have 'concatn' in rhs_regno, at rtl.h:972

[ian at airs dot com]

------- Comment #4 from ian at airs dot com  2007-08-07 22:47 -------
Fixed.


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ian at airs dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|ian at gcc dot gnu dot org  |ian at airs dot com
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32776