[Bug fortran/42397] New: FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[Bug fortran/42397] New: FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[danglin at gcc dot gnu dot org]

Executing on host:
/home/dave/gnu/gcc-4.5/objdir/gcc/testsuite/gfortran/../../gfortran
-B/home/dave/gnu/gcc-4.5/objdir/gcc/testsuite/gfortran/../../
f_lto_20091028-2_0.o f_lto_20091028-2_1.o  -O2 -fwhopr -r -nostdlib
-finline-functions 
-B/home/dave/gnu/gcc-4.5/objdir/hppa-linux/./libgfortran/.libs
-L/home/dave/gnu/gcc-4.5/objdir/hppa-linux/./libgfortran/.libs
-L/home/dave/gnu/gcc-4.5/objdir/hppa-linux/./libgfortran/.libs
-L/home/dave/gnu/gcc-4.5/objdir/hppa-linux/./libiberty      -o
gfortran-dg-lto-20091028-2-11    (timeout = 300)In file included from
/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/lto/20091028-2_0.f90:4:0,     
           from
:2:/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/lto/20091028-2_1.c: In
function
'int_gen_ti_header_char':/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/lto/20091028-2_1.c:8:10:
internal compiler error: Floating point exceptionPlease submit a full bug
report,with preprocessed source if appropriate.See
<http://gcc.gnu.org/bugs.html> for instructions.lto1: fatal error:
/home/dave/gnu/gcc-4.5/objdir/gcc/testsuite/gfortran/../../gfortran terminated
with status 256compilation terminated.lto-wrapper:
/home/dave/gnu/gcc-4.5/objdir/gcc/testsuite/gfortran/../../gfortran returned 1
exit status

dave@hiauly6:~/gnu/gcc/objdir/gcc$ ./xgcc -b./ -v
Using built-in specs.
COLLECT_GCC=./xgcc
xgcc: unrecognized option '-b./'
Target: hppa-linux
Configured with: ../gcc/configure --with-gnu-as --with-gnu-ld --enable-shared
--prefix=/home/dave/opt/gnu/gcc/gcc-4.5.0
--with-local-prefix=/home/dave/opt/gnu --enable-threads=posix
--enable-__cxa_atexit --build=hppa-linux --enable-clocale=gnu
--enable-java-gc=boehm --enable-java-awt=xlib
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada
--with-libelf=/home/dave/opt/gnu
Thread model: posix
gcc version 4.5.0 20091215 (experimental) [trunk revision 155276] (GCC)


-- 
           Summary: FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-
                    f_lto_20091028-2_1.o link, internal compiler error
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: hppa-unknown-linux-gnu
  GCC host triplet: hppa-unknown-linux-gnu
GCC target triplet: hppa-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug fortran/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-12-17 00:45 -------
Can you provide a backtrace?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug fortran/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[danglin at gcc dot gnu dot org]

------- Comment #2 from danglin at gcc dot gnu dot org  2009-12-17 01:14 -------
#0  $$divoI () at ../../../gcc/libgcc/../gcc/config/pa/milli64.S:435
#1  0x00596158 in gen_movmemsi (operand0=0x4007d480, operand1=0x4007d490, 
    operand2=0x40013220, operand3=0x40013200)
    at ../../gcc/gcc/config/pa/pa.md:3098
#2  0x00163dac in emit_block_move_via_movmem (x=<value optimized out>, 
    y=<value optimized out>, size=0x40013220, method=BLOCK_OP_NORMAL, 
    expected_align=<value optimized out>, expected_size=<value optimized out>)
    at ../../gcc/gcc/expr.c:1351
#3  emit_block_move_hints (x=<value optimized out>, y=<value optimized out>, 
    size=0x40013220, method=BLOCK_OP_NORMAL, 
    expected_align=<value optimized out>, expected_size=<value optimized out>)
    at ../../gcc/gcc/expr.c:1222
#4  0x00163dac in emit_block_move_via_movmem (x=<value optimized out>, 
    y=<value optimized out>, size=0x40013220, method=BLOCK_OP_NORMAL, 
    expected_align=<value optimized out>, expected_size=<value optimized out>)
    at ../../gcc/gcc/expr.c:1351
#5  emit_block_move_hints (x=<value optimized out>, y=<value optimized out>, 
    size=0x40013220, method=BLOCK_OP_NORMAL, 
    expected_align=<value optimized out>, expected_size=<value optimized out>)
    at ../../gcc/gcc/expr.c:1222
[many frames deleted]

(gdb) frame 1
#1  0x00596158 in gen_movmemsi (operand0=0x4007d480, operand1=0x4007d490, 
    operand2=0x40013220, operand3=0x40013200)
    at ../../gcc/gcc/config/pa/pa.md:3098
3098      size = INTVAL (operands[2]);
Current language:  auto
The current source language is "auto; currently c".
(gdb) p debug_rtx (operand3)
(const_int 0 [0x0])

(gdb) p debug_rtx (opalign)
(const_int 0 [0x0])


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug fortran/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[danglin at gcc dot gnu dot org]

------- Comment #3 from danglin at gcc dot gnu dot org  2009-12-17 01:57 -------
The problem is here:

0x00163a80 in emit_block_move_via_movmem (x=<value optimized out>, 
    y=<value optimized out>, size=0x40013220, method=BLOCK_OP_NORMAL, 
    expected_align=<value optimized out>, expected_size=<value optimized out>)
    at ../../gcc/gcc/expr.c:1300
1300      rtx opalign = GEN_INT (align / BITS_PER_UNIT);
(gdb) p/x $r23
$13 = 0x1

align is 1.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug fortran/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[danglin at gcc dot gnu dot org]

------- Comment #4 from danglin at gcc dot gnu dot org  2009-12-17 02:12 -------
(gdb) p debug_rtx (x)
(mem/c/i:BLK (reg/f:SI 109) [0 C.1197+0])


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug fortran/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-12-17 11:23 -------
I can reproduce it on i?86-linux with an extra assert.

Index: gcc/expr.c
===================================================================
--- gcc/expr.c  (revision 155297)
+++ gcc/expr.c  (working copy)
@@ -1194,6 +1194,7 @@ emit_block_move_hints (rtx x, rtx y, rtx
     }

   align = MIN (MEM_ALIGN (x), MEM_ALIGN (y));
+  gcc_assert (align >= BITS_PER_UNIT);

   gcc_assert (MEM_P (x));
   gcc_assert (MEM_P (y));


the testcase is sort-of invalid as it stores to a CONST_DECL via a memcpy.
But it's only undefined at runtime so we shouldn't ICE here.  CONST_DECLs
are given 1 as alignment appearantly which is sort-of bogus - they
should get the alignment of the mode or at least BITS_PER_UNIT and
get_object_alignment doesn't honor that.

I have a patch.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-12-17 11:23:50
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug middle-end/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2009-12-17 11:53 -------
It's also a middle-end issue.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|fortran                     |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug middle-end/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2009-12-17 14:36 -------
Subject: Bug 42397

Author: rguenth
Date: Thu Dec 17 14:36:43 2009
New Revision: 155316

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155316
Log:
2009-12-17  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42397
        * builtins.c (get_object_alignment): Properly deal with
        a CONST_DECL base.
        * expr.c (emit_block_move_hints): Assert the alignment makes
        sense.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/expr.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397

[Bug middle-end/42397] FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link, internal compiler error

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2009-12-17 14:39 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42397