[Bug tree-optimization/21933] New: [4.1 regression] ICE with -ftree-vectorize

[Bug tree-optimization/21933] New: [4.1 regression] ICE with -ftree-vectorize

[reichelt at gcc dot gnu dot org]

Compiling the following code snippet with today's mainline
(g++ -O -march=pentium4 -ftree-vectorize) I get an ICE:

======================================================================
struct A
{
    int a[4];
    A& foo() { for (int i=0; i<4; ++i) a[i]=0; return *this; }
    int bar();
};

struct B
{
    A* p;
    ~B() { ++p; }
};

struct C : B {};

struct X { int i; };

struct Y : virtual X
{
    Y& operator<<(X) { ++i; return *this; }
};

void baz()
{
    C c0, c1, c2, c3;
    A(*c0.p).foo().bar();

    X x;
    Y() << x << x << x << x;
}
======================================================================

bug.cc: In function 'void baz()':
bug.cc:23: internal compiler error: tree check: expected ssa_name, have var_decl
in verify_ssa, at tree-ssa.c:750
Please submit a full bug report, [etc.]

-- 
           Summary: [4.1 regression] ICE with -ftree-vectorize
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21933

[Bug tree-optimization/21933] [4.1 regression] ICE with -ftree-vectorize

[dorit at il dot ibm dot com]

------- Additional Comments From dorit at il dot ibm dot com  2005-06-07 10:13 -------
I also see this on powerpc-apple-darwin:
g++ -O -ftree-vectorize -maltivec pr21933.cc

pr21933.cc: In function 'void baz()':
pr21933.cc:23: internal compiler error: tree check: expected ssa_name, have 
var_decl in verify_ssa, at tree-ssa.c:750

Keith is looking into it. (probably a duplicate of PR21884 ?)

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21933

[Bug tree-optimization/21933] [4.1 regression] ICE with -ftree-vectorize

[dorit at il dot ibm dot com]

------- Additional Comments From dorit at il dot ibm dot com  2005-06-09 08:45 -------
patch: http://gcc.gnu.org/ml/gcc-patches/2005-06/msg00850.html



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21933

[Bug tree-optimization/21933] [4.1 regression] ICE with -ftree-vectorize

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-06-09 08:51 -------
Confirmed by Dorit.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2005-
                   |                            |06/msg00445.html
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |patch
   Last reconfirmed|0000-00-00 00:00:00         |2005-06-09 08:51:11
               date|                            |
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21933

[Bug tree-optimization/21933] [4.1 regression] ICE with -ftree-vectorize

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-06-11 14:04 -------
Fixed by Keith's patch.


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21933