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riscv-gcc-1
Commit 41cd4957 by Jakub Jelinek Committed by Jakub Jelinek
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dwarf2out.c (size_of_loc_descr, [...]): Allow DW_OP_GNU_convert and… 

dwarf2out.c (size_of_loc_descr, [...]): Allow DW_OP_GNU_convert and DW_OP_GNU_reinterpret to use constant instead of...

	* dwarf2out.c (size_of_loc_descr, output_loc_operands,
	mark_base_types, hash_loc_operands, compare_loc_operands): Allow
	DW_OP_GNU_convert and DW_OP_GNU_reinterpret to use constant instead
	of base type reference as argument.
	(resolve_addr_in_expr): Likewise.  Fix keep computation.
	(convert_descriptor_to_signed): Renamed to...
	(convert_descriptor_to_mode): ... this.  For wider types convert
	to unsigned instead of signed, for <= DWARF2_ADDR_SIZE convert to
	untyped.
	(typed_binop): New function.
	(scompare_loc_descriptor, ucompare_loc_descriptor,
	minmax_loc_descriptor, mem_loc_descriptor): For wider integer modes
	default to unsigned type instead of signed.

From-SVN: r175289
parent ddb555ed
Showing with 173 additions and 108 deletions
gcc/ChangeLog
2011-06-22 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (size_of_loc_descr, output_loc_operands,
mark_base_types, hash_loc_operands, compare_loc_operands): Allow
DW_OP_GNU_convert and DW_OP_GNU_reinterpret to use constant instead
of base type reference as argument.
(resolve_addr_in_expr): Likewise. Fix keep computation.
(convert_descriptor_to_signed): Renamed to...
(convert_descriptor_to_mode): ... this. For wider types convert
to unsigned instead of signed, for <= DWARF2_ADDR_SIZE convert to
untyped.
(typed_binop): New function.
(scompare_loc_descriptor, ucompare_loc_descriptor,
minmax_loc_descriptor, mem_loc_descriptor): For wider integer modes
default to unsigned type instead of signed.
PR debug/47858
* gimple.h (enum gimple_debug_subcode): Add GIMPLE_DEBUG_SOURCE_BIND.
(gimple_build_debug_source_bind_stat): New prototype.
......
gcc/dwarf2out.c
......@@ -5082,11 +5082,14 @@ size_of_loc_descr (dw_loc_descr_ref loc)
break;
case DW_OP_GNU_convert:
case DW_OP_GNU_reinterpret:
{
unsigned long o
= get_base_type_offset (loc->dw_loc_oprnd1.v.val_die_ref.die);
size += size_of_uleb128 (o);
}
if (loc->dw_loc_oprnd1.val_class == dw_val_class_unsigned_const)
size += size_of_uleb128 (loc->dw_loc_oprnd1.v.val_unsigned);
else
{
unsigned long o
= get_base_type_offset (loc->dw_loc_oprnd1.v.val_die_ref.die);
size += size_of_uleb128 (o);
}
break;
case DW_OP_GNU_parameter_ref:
size += 4;
......@@ -5467,11 +5470,14 @@ output_loc_operands (dw_loc_descr_ref loc, int for_eh_or_skip)
break;
case DW_OP_GNU_convert:
case DW_OP_GNU_reinterpret:
{
unsigned long o = get_base_type_offset (val1->v.val_die_ref.die);
gcc_assert (o);
dw2_asm_output_data_uleb128 (o, NULL);
}
if (loc->dw_loc_oprnd1.val_class == dw_val_class_unsigned_const)
dw2_asm_output_data_uleb128 (val1->v.val_unsigned, NULL);
else
{
unsigned long o = get_base_type_offset (val1->v.val_die_ref.die);
gcc_assert (o);
dw2_asm_output_data_uleb128 (o, NULL);
}
break;
case DW_OP_GNU_parameter_ref:
......@@ -13881,27 +13887,24 @@ base_type_for_mode (enum machine_mode mode, bool unsignedp)
return type_die;
}
/* For OP descriptor assumed to be in unsigned MODE, convert it to a signed
type matching MODE, or, if MODE is narrower than DWARF2_ADDR_SIZE, signed
type matching DWARF2_ADDR_SIZE. Return NULL if the conversion is not
/* For OP descriptor assumed to be in unsigned MODE, convert it to a unsigned
type matching MODE, or, if MODE is narrower than or as wide as
DWARF2_ADDR_SIZE, untyped. Return NULL if the conversion is not
possible. */
static dw_loc_descr_ref
convert_descriptor_to_signed (enum machine_mode mode, dw_loc_descr_ref op)
convert_descriptor_to_mode (enum machine_mode mode, dw_loc_descr_ref op)
{
enum machine_mode outer_mode = mode;
dw_die_ref type_die;
dw_loc_descr_ref cvt;
if (GET_MODE_SIZE (mode) < DWARF2_ADDR_SIZE)
if (GET_MODE_SIZE (mode) <= DWARF2_ADDR_SIZE)
{
outer_mode = mode_for_size (DWARF2_ADDR_SIZE * BITS_PER_UNIT,
MODE_INT, 0);
if (outer_mode == BLKmode
|| GET_MODE_SIZE (outer_mode) != DWARF2_ADDR_SIZE)
return NULL;
add_loc_descr (&op, new_loc_descr (DW_OP_GNU_convert, 0, 0));
return op;
}
type_die = base_type_for_mode (outer_mode, 0);
type_die = base_type_for_mode (outer_mode, 1);
if (type_die == NULL)
return NULL;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
......@@ -13958,9 +13961,29 @@ scompare_loc_descriptor (enum dwarf_location_atom op, rtx rtl,
return NULL;
if (GET_MODE_CLASS (op_mode) != MODE_INT
|| GET_MODE_SIZE (op_mode) >= DWARF2_ADDR_SIZE)
|| GET_MODE_SIZE (op_mode) == DWARF2_ADDR_SIZE)
return compare_loc_descriptor (op, op0, op1);
if (GET_MODE_SIZE (op_mode) > DWARF2_ADDR_SIZE)
{
dw_die_ref type_die = base_type_for_mode (op_mode, 0);
dw_loc_descr_ref cvt;
if (type_die == NULL)
return NULL;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op1, cvt);
return compare_loc_descriptor (op, op0, op1);
}
shift = (DWARF2_ADDR_SIZE - GET_MODE_SIZE (op_mode)) * BITS_PER_UNIT;
/* For eq/ne, if the operands are known to be zero-extended,
there is no need to do the fancy shifting up. */
......@@ -14016,9 +14039,6 @@ ucompare_loc_descriptor (enum dwarf_location_atom op, rtx rtl,
if (dwarf_strict && GET_MODE_SIZE (op_mode) > DWARF2_ADDR_SIZE)
return NULL;
if (op_mode != VOIDmode && GET_MODE_CLASS (op_mode) != MODE_INT)
return NULL;
op0 = mem_loc_descriptor (XEXP (rtl, 0), op_mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
op1 = mem_loc_descriptor (XEXP (rtl, 1), op_mode, mem_mode,
......@@ -14066,24 +14086,6 @@ ucompare_loc_descriptor (enum dwarf_location_atom op, rtx rtl,
add_loc_descr (&op1, new_loc_descr (DW_OP_plus_uconst,
bias, 0));
}
else
{
dw_die_ref type_die = base_type_for_mode (op_mode, 1);
dw_loc_descr_ref cvt;
if (type_die == NULL)
return NULL;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op1, cvt);
}
return compare_loc_descriptor (op, op0, op1);
}
......@@ -14130,23 +14132,6 @@ minmax_loc_descriptor (rtx rtl, enum machine_mode mode,
add_loc_descr (&op0, new_loc_descr (DW_OP_plus_uconst, bias, 0));
add_loc_descr (&op1, new_loc_descr (DW_OP_plus_uconst, bias, 0));
}
else
{
dw_die_ref type_die = base_type_for_mode (mode, 1);
dw_loc_descr_ref cvt;
if (type_die == NULL)
return NULL;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op1, cvt);
}
}
else if (GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) < DWARF2_ADDR_SIZE)
......@@ -14157,6 +14142,24 @@ minmax_loc_descriptor (rtx rtl, enum machine_mode mode,
add_loc_descr (&op1, int_loc_descriptor (shift));
add_loc_descr (&op1, new_loc_descr (DW_OP_shl, 0, 0));
}
else if (GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) > DWARF2_ADDR_SIZE)
{
dw_die_ref type_die = base_type_for_mode (mode, 0);
dw_loc_descr_ref cvt;
if (type_die == NULL)
return NULL;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op1, cvt);
}
if (GET_CODE (rtl) == SMIN || GET_CODE (rtl) == UMIN)
op = DW_OP_lt;
......@@ -14172,9 +14175,46 @@ minmax_loc_descriptor (rtx rtl, enum machine_mode mode,
add_loc_descr (&ret, drop_node);
bra_node->dw_loc_oprnd1.val_class = dw_val_class_loc;
bra_node->dw_loc_oprnd1.v.val_loc = drop_node;
if ((GET_CODE (rtl) == SMIN || GET_CODE (rtl) == SMAX)
&& GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) > DWARF2_ADDR_SIZE)
ret = convert_descriptor_to_mode (mode, ret);
return ret;
}
/* Helper function for mem_loc_descriptor. Perform OP binary op,
but after converting arguments to type_die, afterwards
convert back to unsigned. */
static dw_loc_descr_ref
typed_binop (enum dwarf_location_atom op, rtx rtl, dw_die_ref type_die,
enum machine_mode mode, enum machine_mode mem_mode)
{
dw_loc_descr_ref cvt, op0, op1;
if (type_die == NULL)
return NULL;
op0 = mem_loc_descriptor (XEXP (rtl, 0), mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
op1 = mem_loc_descriptor (XEXP (rtl, 1), mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
if (op0 == NULL || op1 == NULL)
return NULL;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op1, cvt);
add_loc_descr (&op0, op1);
add_loc_descr (&op0, new_loc_descr (op, 0, 0));
return convert_descriptor_to_mode (mode, op0);
}
/* CLZ (where constV is CLZ_DEFINED_VALUE_AT_ZERO computed value,
const0 is DW_OP_lit0 or corresponding typed constant,
const1 is DW_OP_lit1 or corresponding typed constant
......@@ -14647,7 +14687,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
mem_mode, initialized);
if (mem_loc_result == NULL)
break;
type_die = base_type_for_mode (mode, 0);
type_die = base_type_for_mode (mode,
GET_MODE_CLASS (mode) == MODE_INT);
if (type_die == NULL)
{
mem_loc_result = NULL;
......@@ -14679,7 +14720,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
break;
if (REGNO (rtl) > FIRST_PSEUDO_REGISTER)
break;
type_die = base_type_for_mode (mode, 0);
type_die = base_type_for_mode (mode,
GET_MODE_CLASS (mode) == MODE_INT);
if (type_die == NULL)
break;
mem_loc_result = new_loc_descr (DW_OP_GNU_regval_type,
......@@ -14762,7 +14804,7 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
GET_CODE (rtl) == ZERO_EXTEND);
if (type_die1 == NULL)
break;
type_die2 = base_type_for_mode (mode, 0);
type_die2 = base_type_for_mode (mode, 1);
if (type_die2 == NULL)
break;
mem_loc_result = op0;
......@@ -14795,7 +14837,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
if (dwarf_strict)
return NULL;
type_die = base_type_for_mode (mode, 0);
type_die
= base_type_for_mode (mode, GET_MODE_CLASS (mode) == MODE_INT);
if (type_die == NULL)
return NULL;
deref = new_loc_descr (DW_OP_GNU_deref_type,
......@@ -14950,12 +14993,11 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
loc_descr_plus_const (&mem_loc_result, INTVAL (XEXP (rtl, 1)));
else
{
dw_loc_descr_ref mem_loc_result2
= mem_loc_descriptor (XEXP (rtl, 1), mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
if (mem_loc_result2 == 0)
op1 = mem_loc_descriptor (XEXP (rtl, 1), mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
if (op1 == 0)
break;
add_loc_descr (&mem_loc_result, mem_loc_result2);
add_loc_descr (&mem_loc_result, op1);
add_loc_descr (&mem_loc_result,
new_loc_descr (DW_OP_plus, 0, 0));
}
......@@ -14973,6 +15015,15 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
goto do_binop;
case DIV:
if (!dwarf_strict
&& GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_SIZE (mode) > DWARF2_ADDR_SIZE)
{
mem_loc_result = typed_binop (DW_OP_div, rtl,
base_type_for_mode (mode, 0),
mode, mem_mode);
break;
}
op = DW_OP_div;
goto do_binop;
......@@ -15044,12 +15095,10 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
case MOD:
if (GET_MODE_SIZE (mode) > DWARF2_ADDR_SIZE && !dwarf_strict)
{
/* If MODE is wider than DWARF2_ADDR_SIZE, mem_loc_descriptor
should return signed typed values and therefore DW_OP_mod
won't be unsigned as it defaults for untyped stack values,
but signed. */
op = DW_OP_mod;
goto do_binop;
mem_loc_result = typed_binop (DW_OP_mod, rtl,
base_type_for_mode (mode, 0),
mode, mem_mode);
break;
}
op0 = mem_loc_descriptor (XEXP (rtl, 0), mode, mem_mode,
......@@ -15072,32 +15121,14 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
case UDIV:
if (!dwarf_strict && GET_MODE_CLASS (mode) == MODE_INT)
{
dw_die_ref type_die;
dw_loc_descr_ref cvt;
type_die = base_type_for_mode (mode, 1);
if (type_die == NULL)
break;
op0 = mem_loc_descriptor (XEXP (rtl, 0), mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
op1 = mem_loc_descriptor (XEXP (rtl, 1), mode, mem_mode,
VAR_INIT_STATUS_INITIALIZED);
if (op0 == 0 || op1 == 0)
break;
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
cvt = new_loc_descr (DW_OP_GNU_convert, 0, 0);
cvt->dw_loc_oprnd1.val_class = dw_val_class_die_ref;
cvt->dw_loc_oprnd1.v.val_die_ref.die = type_die;
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op1, cvt);
mem_loc_result = op0;
add_loc_descr (&mem_loc_result, op1);
add_loc_descr (&mem_loc_result, new_loc_descr (DW_OP_div, 0, 0));
mem_loc_result = convert_descriptor_to_signed (mode, mem_loc_result);
if (GET_MODE_CLASS (mode) > DWARF2_ADDR_SIZE)
{
op = DW_OP_div;
goto do_binop;
}
mem_loc_result = typed_binop (DW_OP_div, rtl,
base_type_for_mode (mode, 1),
mode, mem_mode);
}
break;
......@@ -15140,7 +15171,7 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
&& (GET_MODE_BITSIZE (mode) == HOST_BITS_PER_WIDE_INT
|| GET_MODE_BITSIZE (mode) == 2 * HOST_BITS_PER_WIDE_INT))
{
dw_die_ref type_die = base_type_for_mode (mode, 0);
dw_die_ref type_die = base_type_for_mode (mode, 1);
if (type_die == NULL)
return NULL;
mem_loc_result = new_loc_descr (DW_OP_GNU_const_type, 0,
......@@ -15173,7 +15204,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
|| (GET_MODE (rtl) == VOIDmode
&& GET_MODE_BITSIZE (mode) != 2 * HOST_BITS_PER_WIDE_INT))
break;
type_die = base_type_for_mode (mode, 0);
type_die = base_type_for_mode (mode,
GET_MODE_CLASS (mode) == MODE_INT);
if (type_die == NULL)
return NULL;
mem_loc_result = new_loc_descr (DW_OP_GNU_const_type, 0, 0);
......@@ -15337,7 +15369,7 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
if (op0 == NULL)
break;
if (GET_MODE_CLASS (GET_MODE (XEXP (rtl, 0))) == MODE_INT
&& (GET_CODE (rtl) == UNSIGNED_FLOAT
&& (GET_CODE (rtl) == FLOAT
|| GET_MODE_SIZE (GET_MODE (XEXP (rtl, 0)))
<= DWARF2_ADDR_SIZE))
{
......@@ -15360,10 +15392,10 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
cvt->dw_loc_oprnd1.v.val_die_ref.external = 0;
add_loc_descr (&op0, cvt);
if (GET_MODE_CLASS (mode) == MODE_INT
&& (GET_CODE (rtl) == UNSIGNED_FIX
&& (GET_CODE (rtl) == FIX
|| GET_MODE_SIZE (mode) < DWARF2_ADDR_SIZE))
{
op0 = convert_descriptor_to_signed (mode, op0);
op0 = convert_descriptor_to_mode (mode, op0);
if (op0 == NULL)
break;
}
......@@ -24115,9 +24147,12 @@ mark_base_types (dw_loc_descr_ref loc)
case DW_OP_GNU_deref_type:
base_type = loc->dw_loc_oprnd2.v.val_die_ref.die;
break;
case DW_OP_GNU_const_type:
case DW_OP_GNU_convert:
case DW_OP_GNU_reinterpret:
if (loc->dw_loc_oprnd1.val_class == dw_val_class_unsigned_const)
continue;
/* FALLTHRU */
case DW_OP_GNU_const_type:
base_type = loc->dw_loc_oprnd1.v.val_die_ref.die;
break;
case DW_OP_GNU_entry_value:
......@@ -24306,8 +24341,14 @@ resolve_addr_in_expr (dw_loc_descr_ref loc)
if (loc->dw_loc_opc == DW_OP_GNU_regval_type
|| loc->dw_loc_opc == DW_OP_GNU_deref_type)
base1 = loc->dw_loc_oprnd2.v.val_die_ref.die;
else if (loc->dw_loc_oprnd1.val_class
== dw_val_class_unsigned_const)
break;
else
base1 = loc->dw_loc_oprnd1.v.val_die_ref.die;
if (loc->dw_loc_next->dw_loc_oprnd1.val_class
== dw_val_class_unsigned_const)
break;
base2 = loc->dw_loc_next->dw_loc_oprnd1.v.val_die_ref.die;
gcc_assert (base1->die_tag == DW_TAG_base_type
&& base2->die_tag == DW_TAG_base_type);
......@@ -24334,7 +24375,7 @@ resolve_addr_in_expr (dw_loc_descr_ref loc)
/* Don't change integer DW_OP_GNU_convert after e.g. floating
point typed stack entry. */
else if (enc1 != DW_ATE_unsigned && enc1 != DW_ATE_signed)
keep = loc;
keep = loc->dw_loc_next;
break;
}
break;
......@@ -24600,6 +24641,12 @@ hash_loc_operands (dw_loc_descr_ref loc, hashval_t hash)
break;
case DW_OP_GNU_convert:
case DW_OP_GNU_reinterpret:
if (val1->val_class == dw_val_class_unsigned_const)
{
hash = iterative_hash_object (val1->v.val_unsigned, hash);
break;
}
/* FALLTHRU */
case DW_OP_GNU_const_type:
{
unsigned int byte_size
......@@ -24821,6 +24868,10 @@ compare_loc_operands (dw_loc_descr_ref x, dw_loc_descr_ref y)
&& valx2->v.val_die_ref.die == valy2->v.val_die_ref.die;
case DW_OP_GNU_convert:
case DW_OP_GNU_reinterpret:
if (valx1->val_class != valy1->val_class)
return false;
if (valx1->val_class == dw_val_class_unsigned_const)
return valx1->v.val_unsigned == valy1->v.val_unsigned;
return valx1->v.val_die_ref.die == valy1->v.val_die_ref.die;
case DW_OP_GNU_parameter_ref:
return valx1->val_class == dw_val_class_die_ref
......
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