[Bug other/22089] New: bootstrap ices / insn does not satisfy its constraints.

[Bug other/22089] New: bootstrap ices / insn does not satisfy its constraints.

[pluto at agmk dot net]

# gcc-4.1-20050616/08:28cvs 
 
(...) 
stage1/xgcc -Bstage1/ -B/usr/i686-pld-linux/bin/ -c   -O2 -march=i686  
-mtune=pentium4  -pipe -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes  
-Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros  
-Wold-style-definition  -fno-common   -DHAVE_CONFIG_H    -I. -I. -I../../gcc  
-I../../gcc/. -I../../gcc/../include -I../../gcc/../libcpp/include  \  
        ../../gcc/config/i386/i386.c -o i386.o  
../../gcc/config/i386/i386.c: In function 'ix86_expand_vector_init':  
../../gcc/config/i386/i386.c:17034: error: insn does not satisfy its  
constraints:  
(insn 368 344 380 4 (set (reg:QI 138)  
        (const_int 0 [0x0])) 45 {*movqi_1} (nil)  
    (expr_list:REG_EQUIV (const_int 0 [0x0])  
        (nil)))  
../../gcc/config/i386/i386.c:17034: internal compiler error:  
in reload_cse_simplify_operands, at postreload.c:391

-- 
           Summary: bootstrap ices / insn does not satisfy its constraints.
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: other
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pluto at agmk dot net
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pld-linux
  GCC host triplet: i686-pld-linux
GCC target triplet: i686-pld-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug other/22089] bootstrap ices / insn does not satisfy its constraints.

[pluto at agmk dot net]

------- Additional Comments From pluto at agmk dot net  2005-06-16 09:53 -------
-mtune=pentium4 causes ice. 
 
$ stage1/xgcc -Bstage1 i386.i -c -march=i686 -O2 works fine. 
 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|other                       |target
           Keywords|                            |build, ice-on-valid-code
            Summary|bootstrap ices / insn does  |[4,1 Regression] bootstrap
                   |not satisfy its constraints.|ices / insn does not satisfy
                   |                            |its constraints.


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-06-16 11:41 -------
Confirmed.

The following testcase crashes the mainline compiler (-O -march=pentium4):

=========================================
struct A
{
  struct A* p;
};

int bar(struct A*, struct A*);
int baz();

void foo (int i, struct A* q)
{
  char c, d = 1;

  while (i)
    {
      if (q)
        c = 1;
      if (q->p->p)
        d = 0;
      if (bar (q->p->p, q->p))
        c = 0;
      --i;
    }

  if (c && d && baz ())
    return;
}
=========================================


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |monitored
   Last reconfirmed|0000-00-00 00:00:00         |2005-06-16 11:41:41
               date|                            |
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-06-16 12:26 -------
Bernd, this was introduced by your patch
http://gcc.gnu.org/ml/gcc-cvs/2005-06/msg00559.html

Could you please have a look?


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-17 14:39 -------
Fixed by RTH's patch in
<http://gcc.gnu.org/ml/gcc-patches/2005-06/msg01487.html>.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-17 14:49 -------
Woops the patch has not been checked in yet for some reason I thought it was.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEW


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4,1 Regression] bootstrap ices / insn does not satisfy its constraints.

[laurent at guerby dot net]

------- Additional Comments From laurent at guerby dot net  2005-06-17 17:17 -------
For the record, the following 12 ACATS tests get the same ICE on x86-linux.

c38202a 
c3a0004 
c910001 
c940005 
c940010 
c940013 
c95086c 
c95086e 
c95086f 
c951002 
c954024 
c954026

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4.1 Regression] bootstrap ices / insn does not satisfy its constraints.

[laurent at guerby dot net]

------- Additional Comments From laurent at guerby dot net  2005-06-17 20:32 -------
All ACATS fail are fixed by RTH patch.

http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg01046.html

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089

[Bug target/22089] [4.1 Regression] bootstrap ices / insn does not satisfy its constraints.

[rth at gcc dot gnu dot org]

------- Additional Comments From rth at gcc dot gnu dot org  2005-06-17 20:35 -------
Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22089