[Bug bootstrap/21335] New: bootstrap fails with CFLAGS="-O3 -ftree-vectorize"

[Bug bootstrap/21335] New: bootstrap fails with CFLAGS="-O3 -ftree-vectorize"

[micis at gmx dot de]

The actual snapshot gcc-4.1-20050501 fails to bootstrap if -O3 -ftree-vectorize 
is given as CFLAGS.

Michael Cieslinski

-- 
           Summary: bootstrap fails with CFLAGS="-O3 -ftree-vectorize"
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: micis at gmx dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] bootstrap fails with CFLAGS="-O3 -ftree-vectorize"

[dorit at il dot ibm dot com]

------- Additional Comments From dorit at il dot ibm dot com  2005-05-02 14:51 -------
I get the following bootstrap failure on powerpc-apple-darwin, with "-O2 -ftree-
vectorize":

../../gcc/gcc/builtins.c: In function 'fold_builtin_1':
../../gcc/gcc/builtins.c:8451: internal compiler error: Bus error

which seems to happen during tree-if-conversion:

(gdb)
Program received signal EXC_BAD_ACCESS, Could not access memory.
0x000cbe00 in clean_predicate_lists (loop=0x4144fda0) at ../../gcc/gcc/tree-if-
conv.c:654
654         bb[i]->aux = NULL;
(gdb) backtrace
#0  0x000cbe00 in clean_predicate_lists (loop=0x4144fda0) at ../../gcc/gcc/tree-
if-conv.c:654
#1  0x000caf0c in tree_if_conversion (loop=0x4d78b8, for_vectorizer=16 '\020') 
at ../../gcc/gcc/tree-if-conv.c:205
#2  0x000ccbf0 in main_tree_if_conversion () at ../../gcc/gcc/tree-if-
conv.c:1116
#3  0x00065874 in execute_one_pass (pass=0x17311d0) at ../../gcc/gcc/tree-
optimize.c:578
#4  0x00065958 in execute_pass_list (pass=0x4b7f2c) at ../../gcc/gcc/tree-
optimize.c:615
#5  0x00065970 in execute_pass_list (pass=0x4b7cb0) at ../../gcc/gcc/tree-
optimize.c:616
#6  0x00065970 in execute_pass_list (pass=0x4b74f0) at ../../gcc/gcc/tree-
optimize.c:616
#7  0x00065c34 in tree_rest_of_compilation (fndecl=0xb7915c) 
at ../../gcc/gcc/tree-optimize.c:728
#8  0x0000e60c in c_expand_body (fndecl=0xde0bc8) at ../../gcc/gcc/c-decl.c:6411
#9  0x002f7998 in cgraph_expand_function (node=0xde0bc8) 
at ../../gcc/gcc/cgraphunit.c:924
#10 0x002f7ac4 in cgraph_expand_all_functions () 
at ../../gcc/gcc/cgraphunit.c:988
#11 0x002f7e0c in cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:1090
#12 0x002a6ad4 in compile_file () at ../../gcc/gcc/toplev.c:1013
#13 0x002a8a80 in do_compile () at ../../gcc/gcc/toplev.c:2123
#14 0x002a8b04 in toplev_main (argc=43, argv=0xbffff868) 
at ../../gcc/gcc/toplev.c:2155
#15 0x00001df0 in _start (argc=43, argv=0xbffff868, envp=0xbffff918) 
at /SourceCache/Csu/Csu-47/crt.c:267
#16 0x8fe1a558 in __dyld__dyld_start ()
(gdb) 


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dpatel at apple dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with CFLAGS="-O3 -ftree-vectorize"

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-09-25 23:31 -------
I am just going to mark this a meta-bug and have PR 24059 block this one.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |24059
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |build, meta-bug
   Last reconfirmed|0000-00-00 00:00:00         |2005-09-25 23:31:13
               date|                            |
            Summary|bootstrap fails with        |[meta-bug] bootstrap fails
                   |CFLAGS="-O3 -ftree-         |with CFLAGS="-O3 -ftree-
                   |vectorize"                  |vectorize"


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[rguenth at gcc dot gnu dot org]

-- 
Bug 21335 depends on bug 23853, which changed state.

Bug 23853 Summary: [4.1 regression] ICE: in tree_low_cst, at tree.c:4270
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23853

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[uros at kss-loka dot si]

-- 
Bug 21335 depends on bug 24059, which changed state.

Bug 24059 Summary: [4.1 Regression] ICE expand_expr_real_1 with -ftree-vectorize -O2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24059

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[dpatel at apple dot com]

------- Comment #3 from dpatel at apple dot com  2006-09-05 16:44 -------
I  know this is a bootstrap failure, however is there a small reproducible test
case for this crash ? Thanks.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-09-05 16:58 -------
(In reply to comment #3)
> I  know this is a bootstrap failure, however is there a small reproducible test
> case for this crash ? Thanks.
THe problem in comment #1 has already been fixed for a while now.  See the bugs
that this bug depends on.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[dpatel at apple dot com]

------- Comment #5 from dpatel at apple dot com  2006-09-05 17:01 -------
I'd already verified that.  How about "-O3 -ftree-vectorize" bootstrap failure
?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[belyshev at depni dot sinp dot msu dot ru]

------- Comment #6 from belyshev at depni dot sinp dot msu dot ru  2007-09-14 00:02 -------
I can bootstrap current trunk (r128479) with -ftree-vectorize on
x86_64-unknown-linux-gnu for some time now, and, according to
http://gcc.gnu.org/ml/gcc-patches/2007-09/msg00327.html, this problem is gone
on powerpc64 too.

So closing as fixed.


-- 

belyshev at depni dot sinp dot msu dot ru changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |belyshev at depni dot sinp
                   |                            |dot msu dot ru
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335

[Bug bootstrap/21335] [meta-bug] bootstrap fails with -ftree-vectorize

[dorit at gcc dot gnu dot org]

------- Comment #7 from dorit at gcc dot gnu dot org  2007-09-14 18:49 -------
(In reply to comment #6)
> I can bootstrap current trunk (r128479) with -ftree-vectorize on
> x86_64-unknown-linux-gnu for some time now, and, according to
> http://gcc.gnu.org/ml/gcc-patches/2007-09/msg00327.html, this problem is gone
> on powerpc64 too.

actually the link you give above explicitly states that "we don't pass
bootstrap with vectorization enabled on powerpc-linux", but there's already a
PR for that (PR32582) so it's ok to close this one

> So closing as fixed.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21335