Hello,
> On Wednesday 08 June 2005 12:01, Nick Burrett wrote:
> > $ ./cc1 -quiet test.c -mthumb -O2
> > ../../bug.c: In function ?foo?:
> > ../../bug.c:3: internal compiler error: in create_mem_ref, at
> > tree-ssa-address.c:585
> > Please submit a full bug report,
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> ;-)
>
>
> And some more information in the mean time:
>
> Starting program: /home/steven/devel/build-test/gcc/cc1 -mthumb t.c -O
> foo
>
> Breakpoint 1, fancy_abort (file=0xa19258
> "../../mainline/gcc/tree-ssa-address.c", line=585,
> function=0xa192d3 "create_mem_ref") at diagnostic.c:588
> 588 internal_error ("in %s, at %s:%d", function, trim_filename (file),
> line);
> (gdb) up
> #1 0x00000000005930da in create_mem_ref (bsi=0x7fbfffd370,
> type=0x2a95896750, addr=0x7fbfffd390)
> at tree-ssa-address.c:585
> 585 gcc_unreachable ();
> (gdb) p debug_generic_stmt(bsi.tsi.ptr.stmt)
> # VUSE <TMT.0D.1208_18>;
> c1D.1197_10 = *s1D.1192_27;
>
> $12 = void
> (gdb) p parts
> $13 = {symbol = 0x0, base = 0x0, index = 0x2a95981380, step = 0x0, offset =
> 0x0}
a patch, I will submit it once passes regtesting (only the
tree-ssa-address.c:addr_for_mem_ref part is important, but I have rather
changed also the tree-ssa-loop-ivopts.c parts that could cause similar
problems).
Zdenek
Index: tree-ssa-address.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-address.c,v
retrieving revision 2.1
diff -c -3 -p -r2.1 tree-ssa-address.c
*** tree-ssa-address.c 7 Jun 2005 12:01:28 -0000 2.1
--- tree-ssa-address.c 8 Jun 2005 14:34:35 -0000
*************** addr_for_mem_ref (struct mem_address *ad
*** 198,205 ****
templates_initialized = true;
sym = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup ("test_symbol"));
! bse = gen_raw_REG (Pmode, FIRST_PSEUDO_REGISTER);
! idx = gen_raw_REG (Pmode, FIRST_PSEUDO_REGISTER + 1);
for (i = 0; i < 32; i++)
gen_addr_rtx ((i & 16 ? sym : NULL_RTX),
--- 198,205 ----
templates_initialized = true;
sym = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup ("test_symbol"));
! bse = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 1);
! idx = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 2);
for (i = 0; i < 32; i++)
gen_addr_rtx ((i & 16 ? sym : NULL_RTX),
Index: tree-ssa-loop-ivopts.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-loop-ivopts.c,v
retrieving revision 2.78
diff -c -3 -p -r2.78 tree-ssa-loop-ivopts.c
*** tree-ssa-loop-ivopts.c 7 Jun 2005 22:44:56 -0000 2.78
--- tree-ssa-loop-ivopts.c 8 Jun 2005 14:34:35 -0000
*************** add_cost (enum machine_mode mode)
*** 3149,3156 ****
start_sequence ();
force_operand (gen_rtx_fmt_ee (PLUS, mode,
! gen_raw_REG (mode, FIRST_PSEUDO_REGISTER),
! gen_raw_REG (mode, FIRST_PSEUDO_REGISTER + 1)),
NULL_RTX);
seq = get_insns ();
end_sequence ();
--- 3149,3156 ----
start_sequence ();
force_operand (gen_rtx_fmt_ee (PLUS, mode,
! gen_raw_REG (mode, LAST_VIRTUAL_REGISTER + 1),
! gen_raw_REG (mode, LAST_VIRTUAL_REGISTER + 2)),
NULL_RTX);
seq = get_insns ();
end_sequence ();
*************** multiply_by_cost (HOST_WIDE_INT cst, enu
*** 3221,3228 ****
(*cached)->cst = cst;
start_sequence ();
! expand_mult (mode, gen_raw_REG (mode, FIRST_PSEUDO_REGISTER), GEN_INT (cst),
! NULL_RTX, 0);
seq = get_insns ();
end_sequence ();
--- 3221,3228 ----
(*cached)->cst = cst;
start_sequence ();
! expand_mult (mode, gen_raw_REG (mode, LAST_VIRTUAL_REGISTER + 1),
! gen_int_mode (cst, mode), NULL_RTX, 0);
seq = get_insns ();
end_sequence ();
*************** multiplier_allowed_in_address_p (HOST_WI
*** 3247,3253 ****
if (!valid_mult)
{
! rtx reg1 = gen_raw_REG (Pmode, FIRST_PSEUDO_REGISTER);
rtx addr;
HOST_WIDE_INT i;
--- 3247,3253 ----
if (!valid_mult)
{
! rtx reg1 = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 1);
rtx addr;
HOST_WIDE_INT i;
*************** get_address_cost (bool symbol_present, b
*** 3305,3316 ****
HOST_WIDE_INT i;
initialized = true;
! reg1 = gen_raw_REG (Pmode, FIRST_PSEUDO_REGISTER);
addr = gen_rtx_fmt_ee (PLUS, Pmode, reg1, NULL_RTX);
for (i = 1; i <= 1 << 20; i <<= 1)
{
! XEXP (addr, 1) = GEN_INT (i);
if (!memory_address_p (Pmode, addr))
break;
}
--- 3305,3316 ----
HOST_WIDE_INT i;
initialized = true;
! reg1 = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 1);
addr = gen_rtx_fmt_ee (PLUS, Pmode, reg1, NULL_RTX);
for (i = 1; i <= 1 << 20; i <<= 1)
{
! XEXP (addr, 1) = gen_int_mode (i, Pmode);
if (!memory_address_p (Pmode, addr))
break;
}
*************** get_address_cost (bool symbol_present, b
*** 3319,3325 ****
for (i = 1; i <= 1 << 20; i <<= 1)
{
! XEXP (addr, 1) = GEN_INT (-i);
if (!memory_address_p (Pmode, addr))
break;
}
--- 3319,3325 ----
for (i = 1; i <= 1 << 20; i <<= 1)
{
! XEXP (addr, 1) = gen_int_mode (-i, Pmode);
if (!memory_address_p (Pmode, addr))
break;
}
*************** get_address_cost (bool symbol_present, b
*** 3368,3377 ****
{
acost = 0;
! addr = gen_raw_REG (Pmode, FIRST_PSEUDO_REGISTER);
! reg1 = gen_raw_REG (Pmode, FIRST_PSEUDO_REGISTER + 1);
if (ratio_p)
! addr = gen_rtx_fmt_ee (MULT, Pmode, addr, GEN_INT (rat));
if (var_present)
addr = gen_rtx_fmt_ee (PLUS, Pmode, addr, reg1);
--- 3368,3377 ----
{
acost = 0;
! addr = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 1);
! reg1 = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 2);
if (ratio_p)
! addr = gen_rtx_fmt_ee (MULT, Pmode, addr, gen_int_mode (rat, Pmode));
if (var_present)
addr = gen_rtx_fmt_ee (PLUS, Pmode, addr, reg1);
*************** get_address_cost (bool symbol_present, b
*** 3383,3392 ****
base = gen_rtx_fmt_e (CONST, Pmode,
gen_rtx_fmt_ee (PLUS, Pmode,
base,
! GEN_INT (off)));
}
else if (offset_p)
! base = GEN_INT (off);
else
base = NULL_RTX;
--- 3383,3392 ----
base = gen_rtx_fmt_e (CONST, Pmode,
gen_rtx_fmt_ee (PLUS, Pmode,
base,
! gen_int_mode (off, Pmode)));
}
else if (offset_p)
! base = gen_int_mode (off, Pmode);
else
base = NULL_RTX;
