[Bug middle-end/19752] New: error: unrecognizable insn

[Bug middle-end/19752] New: error: unrecognizable insn

[jorgen dot moth at uni-c dot dk]

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When installing TeX-live 2004 on a HP-box (hpux11.11) with gcc –version:

gcc -v
Reading specs from /usr/unic/libexec/gcc/3.4.2/lib/gcc/hppa1.1-hp-
hpux11.11/3.4.2/specs
Configured with: ../gcc-3.4.2/configure --prefix=/usr/unic/share/gcc/3.4.2 --
exec-prefix=/usr/unic/libexec/gcc/3.4.2 --with-gnu-as --with-
as=/usr/local/bin/as
Thread model: single
gcc version 3.4.2

the following excerpt of the dvidvi.c program

integer myatol(s)
char **s ;
{
   register char *p ;
   register integer result ;

   result = 0 ;
   p = *s ;
   while ('0' <= *p && *p <= '9') {
      if (result > 100000000)
         error("! arithmetic overflow in parameter") ;
      result = 10 * result + *p++ - '0' ;
   }
   if (p == *s)
      usage() ;
   else {
      *s = p ;
      return(result) ;
   }
}

Resulted in an internal compiler error. The compiler call was:

gcc -DNO_DEBUG -I. -I. -I.. -I./.. -DUNIX  -DNeedFunctionPrototypes -
DHAVE_CONFIG_H -I../kpathsea -I./../kpathsea  -g -O2  -c dvidvi.c -o dvidvi.o

…

dvidvi.c: In function `main':
dvidvi.c:1265: warning: return type of 'main' is not `int'
dvidvi.c: In function `myatol':
dvidvi.c:447: error: unrecognizable insn:
(insn 76 73 161 dvidvi.c:447 (clobber (reg/i:SI 28 %r28 [ <result> ])) -1 
(insn_list:REG_DEP_OUTPUT 56 (nil))
    (nil))
dvidvi.c:447: internal compiler error: in insn_default_length, at insn-
attrtab.c:825
Please submit a full bug report,

-- 
           Summary: error: unrecognizable insn
           Product: gcc
           Version: 3.4.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jorgen dot moth at uni-c dot dk
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19752

[Bug middle-end/19752] error: unrecognizable insn

[jorgen dot moth at uni-c dot dk]

------- Additional Comments From jorgen dot moth at uni-c dot dk  2005-02-02 14:07 -------
To avoid the compiler error it helps to move the last "return(result" outside 
the curly brackets of the last else statement (literally removing the pair of 
curly brackets of the else statement). This change of code introduces no 
semantic change as "usage()" actually error-exits after printing some how-to 
information for using dvidvi. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19752

[Bug middle-end/19752] error: unrecognizable insn

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-02-02 14:33 -------


*** This bug has been marked as a duplicate of 14838 ***

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19752