[Bug libgcj/57074] gcc-4.8.0 libgcj regression on 32bit Power architecture

["amodra at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57074

--- Comment #15 from Alan Modra <amodra at gmail dot com> 2013-05-04 01:21:50 UTC ---
With this patch I'm still seeing odd trees in place_block_symbol().  In the
following, the type is the correct size (168 bytes), but the var_decl size too
small (48 bytes).  place_block_symbol() uses the var_decl size.  Hmm, I reckon
that's a bug in place_block_symbol().  Shouldn't it be using DECL_INITIAL size?

<var_decl 0xf60797e0
_atable_syms_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer
    type <array_type 0xf61115c0
        type <record_type 0xf6072b80 BLK
            size <integer_cst 0xf5fd1240 constant 192>
            unit size <integer_cst 0xf5fd1200 constant 24>
            align 64 symtab 0 alias set 20 canonical type 0xf6072b80 fields
<field_decl 0xf6072be0 clname>
            pointer_to_this <pointer_type 0xf6072d60>>
        BLK
        size <integer_cst 0xf5fd60a0 constant 1344>
        unit size <integer_cst 0xf5fd6100 constant 168>
        align 64 symtab 0 alias set 20 canonical type 0xf61115c0
        domain <integer_type 0xf6111560 type <integer_type 0xf6070060 sizetype>
            DI
            size <integer_cst 0xf5fd05a0 constant 64>
            unit size <integer_cst 0xf5fd05c0 constant 8>
            align 64 symtab 0 alias set -1 canonical type 0xf6111560 precision
64 min <integer_cst 0xf5fd05e0 0> max <integer_cst 0xf5fd1dc0 6>>
        pointer_to_this <pointer_type 0xf611ec40>>
    constant addressable asm_written static ignored BLK file
/home/amodra/src/gcc-current/libjava/classpath/gnu/java/awt/dnd/peer/gtk/GtkDragSourceContextPeer.java
line 0 col 0
    size <integer_cst 0xf5fd1060 type <integer_type 0xf60700c0 bitsizetype>
constant 384>
    unit size <integer_cst 0xf5fd1280 type <integer_type 0xf6070060 sizetype>
constant 48>
    align 64 initial <constructor 0xf6015ca0>
    (mem/c:BLK (symbol_ref:DI
("_atable_syms_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer") [flags
0x82] <var_decl 0xf60797e0
_atable_syms_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer>) [20
_atable_syms_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer+0 S48 A64])
chain <var_decl 0xf60798a0
_otable_syms_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer>>