[Bug rtl-optimization/26222] New: [4.2 Regression] build failuring in libjava

[Bug rtl-optimization/26222] New: [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

No testcase so far but here is the ICE:
/Users/regress/tbox/native/build/gcc/gcj
-B/Users/regress/tbox/native/build/powerpc-apple-darwin8.3.0/ppc64/libjava/
-B/Users/regress/tbox/native/build/gcc/ -fclasspath=
-fbootclasspath=/Users/regress/tbox/native/build/powerpc-apple-darwin8.3.0/ppc64/libjava/classpath/lib
--encoding=UTF-8 -Wno-deprecated -fbootstrap-classes -g -O2 -m64 -c -MT
java/awt/color.lo -MD -MP -MF java/awt/color.deps @java/awt/color.list
-fno-common -o java/awt/.libs/color.o
/Users/regress/tbox/svn-gcc/libjava/classpath/java/awt/color/ICC_Profile.java:
In class 'java.awt.color.ICC_Profile':
/Users/regress/tbox/svn-gcc/libjava/classpath/java/awt/color/ICC_Profile.java:
In method 'java.awt.color.ICC_Profile.makeIdentityClut()':
/Users/regress/tbox/svn-gcc/libjava/classpath/java/awt/color/ICC_Profile.java:1075:
error: unrecognizable insn:
(insn 608 564 610 10 (set (reg:SI 371)
        (fix:SI (reg:DF 132 [ pretmp.2587 ]))) -1 (insn_list:REG_DEP_TRUE 243
(nil))
    (nil))
/Users/regress/tbox/svn-gcc/libjava/classpath/java/awt/color/ICC_Profile.java:1075:
internal compiler error: in get_attr_type, at config/rs6000/rs6000.md:12269


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           Summary: [4.2 Regression] build failuring in libjava
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, build
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: powerpc-darwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2006-02-11 11:06 -------
This was caused by:
2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>

        * doc/invoke.texi (-floop-optimize2): Removed.
        * toplev.c (process_options): Remove handling of flag_loop_optimize2.
        * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
        Test flag_branch_on_count_reg only if HAVE_doloop_end.
        * common.opt (floop-optimize2): Removed.
        (fmove-loop-invariants): Enabled by default.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rakdver at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-02-11 16:43 -------
Reduced Java source:
class A
{
  {
    int clutOffset = 52 + 256 * 3 * 2;
    for (int x = 0; x < 16; x++)
      for (int y = 0; y < 16; y++)
        for (int z = 0; z < 16; z++)
          {
            int offset = clutOffset + z * 6 + y * 16 * 6 + x * 16 * 16 * 6;
            double xf = ((double) x) / ((double) 16 - 1.0);
            putShort(offset, (short) (xf * 65535.0));
          }
  }
  public final native void putShort(int a, short b);
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-02-11 16:59 -------
The problem is that we are splitting up the following RTL:
(insn 94 93 95 12 (parallel [
            (set (mem/c/i:SI (plus:SI (reg/f:SI 113 sfp)
                        (const_int 64 [0x40])) [9 S4 A32])
                (fix:SI (reg:DF 127 [ pretmp.31 ])))
            (clobber (reg:DI 165))
        ]) -1 (nil)
    (nil))

into the two components:
(insn 207 93 95 12 (set (mem/c/i:SI (plus:SI (reg/f:SI 113 sfp)
                (const_int 64 [0x40])) [9 S4 A32])
        (reg:SI 194)) -1 (nil)
    (nil))

and 
(insn 208 164 52 5 (set (reg:SI 194)
        (fix:SI (reg:DF 127 [ pretmp.31 ]))) -1 (nil)
    (nil))

The later is not valid without some clobbers.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-02-11 17:01 -------
Also happens on PPC-linux-gnu.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |blocker
 GCC target triplet|powerpc-darwin              |powerpc-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2006-02-11 17:45 -------
The reason why this fails on powerpc-darwin and not powerpc-linux but also on
powerpc64-linux is because the gfxopt option instructions are enabled by
default on powerpc-darwin and on powerpc64-linux.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 GCC target triplet|powerpc-*-*                 |powerpc*-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2006-02-11 17:56 -------
The C testcase (compile with -O2 -fno-tree-pre -fno-tree-loop-im):
void putShort (int, int);

int t2;
void f(int t1)
{
  int clutOffset = 52 + 256 * 3 * 2;
  for (int x = 0; x < 16; x++)
    for (int y = 0; y < 16; y++)
      for (int z = 0; z < 16; z++)
        {
          int offset = clutOffset + z * 6 + y * 16 * 6 + x * 16 * 16 * 6;
          double xf = ((double) x) / ((double) 16 - 1.0);
          double tt = xf;
          putShort(offset, tt);
        } 
}


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-02-11 17:56:13
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[rakdver at gcc dot gnu dot org]

------- Comment #7 from rakdver at gcc dot gnu dot org  2006-02-11 18:16 -------
Created an attachment (id=10823)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10823&action=view)
Possible fix

I am testing the attached patch that seems to fix the problem (although I am
not really sure whether it is the propper way or not).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[rakdver at gcc dot gnu dot org]

------- Comment #8 from rakdver at gcc dot gnu dot org  2006-02-13 11:21 -------
Subject: Bug 26222

Author: rakdver
Date: Mon Feb 13 11:21:23 2006
New Revision: 110912

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110912
Log:
        PR rtl-optimization/26222
        * function.c (assign_stack_temp_for_type): Do not reuse stack slots
        after tree->rtl expansion.
        * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
        before passing it to emit_move_insn.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/function.c
    trunk/gcc/loop-invariant.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #9 from pinskia at gcc dot gnu dot org  2006-02-13 12:35 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #10 from pinskia at gcc dot gnu dot org  2006-02-14 01:08 -------
*** Bug 26273 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lucier at math dot purdue
                   |                            |dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222

[Bug rtl-optimization/26222] [4.2 Regression] build failuring in libjava

[pinskia at gcc dot gnu dot org]

------- Comment #11 from pinskia at gcc dot gnu dot org  2008-03-24 23:06 -------
Subject: Bug 26222

Author: pinskia
Date: Mon Mar 24 23:05:31 2008
New Revision: 133493

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133493
Log:
2008-03-24  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/26222
        * gcc.dg/torture/pr26222.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr26222.c
Modified:
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26222