[Bug optimization/13584] [tree-ssa] ICE building libstdc++-v3 for arm-elf, frv-elf, mips-elf, etc
green at redhat dot com
gcc-bugzilla@gcc.gnu.org
Thu Jan 8 19:32:00 GMT 2004
------- Additional Comments From green at redhat dot com 2004-01-08 19:32 -------
This is still failing, so I took a closer look at the arm-elf failure. GDB says
it's dying here:
#0 0x08283c91 in expand_assignment (to=0xb68843a0, from=0xb667fec4,
want_value=0) at ../../src/HEAD-2004-01-07/gcc/expr.c:3873
Which is this bit of code...
if (TREE_CODE (from) == CALL_EXPR && ! aggregate_value_p (from, from)
&& TREE_CODE (TYPE_SIZE (TREE_TYPE (from))) == INTEGER_CST
&& ! ((TREE_CODE (to) == VAR_DECL || TREE_CODE (to) == PARM_DECL)
&& GET_CODE (DECL_RTL (to)) == REG))
The problem is that "from" has a VOID type, and
TYPE_SIZE (TREE_TYPE (from)) == 0x0
I hope this helps!
(gdb) p from
$7 = 0xb667fec4
(gdb) pt
<call_expr 0xb667fec4
type <void_type 0xb7485e0c void type_6 VOID
align 8 symtab 0 alias set -1
pointer_to_this <pointer_type 0xb7485e80>>
side-effects
arg 0 <addr_expr 0xb6869340
type <pointer_type 0xb68842b8 type <method_type 0xb6859e80>
unsigned SI
size <integer_cst 0xb7499b58 constant invariant 32>
unit size <integer_cst 0xb7499b88 constant invariant 4>
align 32 symtab 0 alias set -1>
constant invariant
arg 0 <function_decl 0xb6882a6c *.LTHUNK0 type <method_type 0xb6859e80>
addressable asm_written used no-static-chain decl_5 decl_6 SI file
\../../../../../src/HEAD-2004-01-07/libstdc++-v3/src/strstream.cc line 357
initi\al <error_mark 0xb7496a10>
(mem:SI (symbol_ref:SI ("^*.LTHUNK0") <function_decl 0xb6882a6c
*.L\THUNK0>) [0 S4 A32])>>
arg 1 <tree_list 0xb685baf8
value <var_decl 0xb6884740 T.728 type <pointer_type 0xb6859000>
unsigned used ignored SI file
/opt/spindazzle/gnutools/build-X-arm-\elf/arm-elf/thumb/libstdc++-v3/include/backward/strstream
line 120
size <integer_cst 0xb6888d68 constant invariant 32>
unit size <integer_cst 0xb6888d80 constant invariant 4>
align 32 context <function_decl 0xb683f740
_ZTv0_n12_NSt10istrstrea\mD0Ev>
(reg/f:SI 72 [ T.728 ])>>
/opt/spindazzle/gnutools/build-X-arm-elf/arm-elf/thumb/libstdc++-v3/include\/backward/strstream:120>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13584
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