static void
output_gimple_stmt (struct output_block *ob, gimple stmt)
{
unsigned i;
enum gimple_code code;
enum LTO_tags tag;
struct bitpack_d bp;
histogram_value hist;
/* Emit identifying tag. */
code = gimple_code (stmt);
tag = lto_gimple_code_to_tag (code);
streamer_write_record_start (ob, tag);
/* Emit the tuple header. */
bp = bitpack_create (ob->main_stream);
bp_pack_var_len_unsigned (&bp, gimple_num_ops (stmt));
bp_pack_value (&bp, gimple_no_warning_p (stmt), 1);
if (is_gimple_assign (stmt))
bp_pack_value (&bp, gimple_assign_nontemporal_move_p (stmt), 1);
bp_pack_value (&bp, gimple_has_volatile_ops (stmt), 1);
hist = gimple_histogram_value (cfun, stmt);
bp_pack_value (&bp, hist != NULL, 1);
bp_pack_var_len_unsigned (&bp, stmt->gsbase.subcode);
/* Emit location information for the statement. */
stream_output_location (ob, &bp, LOCATION_LOCUS (gimple_location (stmt)));
streamer_write_bitpack (&bp);
/* Emit the lexical block holding STMT. */
stream_write_tree (ob, gimple_block (stmt), true);
/* Emit the operands. */
switch (gimple_code (stmt))
{
case GIMPLE_RESX:
streamer_write_hwi (ob, gimple_resx_region (stmt));
break;
case GIMPLE_EH_MUST_NOT_THROW:
stream_write_tree (ob, gimple_eh_must_not_throw_fndecl (stmt), true);
break;
case GIMPLE_EH_DISPATCH:
streamer_write_hwi (ob, gimple_eh_dispatch_region (stmt));
break;
case GIMPLE_ASM:
streamer_write_uhwi (ob, gimple_asm_ninputs (stmt));
streamer_write_uhwi (ob, gimple_asm_noutputs (stmt));
streamer_write_uhwi (ob, gimple_asm_nclobbers (stmt));
streamer_write_uhwi (ob, gimple_asm_nlabels (stmt));
streamer_write_string (ob, ob->main_stream, gimple_asm_string (stmt),
true);
/* Fallthru */
case GIMPLE_ASSIGN:
case GIMPLE_CALL:
case GIMPLE_RETURN:
case GIMPLE_SWITCH:
case GIMPLE_LABEL:
case GIMPLE_COND:
case GIMPLE_GOTO:
case GIMPLE_DEBUG:
for (i = 0; i < gimple_num_ops (stmt); i++)
{
tree op = gimple_op (stmt, i);
tree *basep = NULL;
/* Wrap all uses of non-automatic variables inside MEM_REFs
so that we do not have to deal with type mismatches on
merged symbols during IL read in. The first operand
of GIMPLE_DEBUG must be a decl, not MEM_REF, though. */
if (op && (i || !is_gimple_debug (stmt)))
{
basep = &op;
while (handled_component_p (*basep))
basep = &TREE_OPERAND (*basep, 0);
if (TREE_CODE (*basep) == VAR_DECL
&& !auto_var_in_fn_p (*basep, current_function_decl)
&& !DECL_REGISTER (*basep))
{
bool volatilep = TREE_THIS_VOLATILE (*basep);
*basep = build2 (MEM_REF, TREE_TYPE (*basep),
build_fold_addr_expr (*basep),
build_int_cst (build_pointer_type
(TREE_TYPE (*basep)), 0));
TREE_THIS_VOLATILE (*basep) = volatilep;
}
else
basep = NULL;
}
stream_write_tree (ob, op, true);
/* Restore the original base if we wrapped it inside a MEM_REF. */
if (basep)
*basep = TREE_OPERAND (TREE_OPERAND (*basep, 0), 0);
}
if (is_gimple_call (stmt))
{
if (gimple_call_internal_p (stmt))
streamer_write_enum (ob->main_stream, internal_fn,
IFN_LAST, gimple_call_internal_fn (stmt));
else
stream_write_tree (ob, gimple_call_fntype (stmt), true);
}
break;
case GIMPLE_NOP:
case GIMPLE_PREDICT:
break;
case GIMPLE_TRANSACTION:
gcc_assert (gimple_transaction_body (stmt) == NULL);
stream_write_tree (ob, gimple_transaction_label (stmt), true);
break;
default:
gcc_unreachable ();
}
if (hist)
stream_out_histogram_value (ob, hist);
}
void
streamer_write_builtin (struct output_block *ob, tree expr)
{
gcc_assert (streamer_handle_as_builtin_p (expr));
if (DECL_BUILT_IN_CLASS (expr) == BUILT_IN_MD
&& !targetm.builtin_decl)
sorry ("tree bytecode streams do not support machine specific builtin "
"functions on this target");
streamer_write_record_start (ob, LTO_builtin_decl);
streamer_write_enum (ob->main_stream, built_in_class, BUILT_IN_LAST,
DECL_BUILT_IN_CLASS (expr));
streamer_write_uhwi (ob, DECL_FUNCTION_CODE (expr));
if (DECL_ASSEMBLER_NAME_SET_P (expr))
{
/* When the assembler name of a builtin gets a user name,
the new name is always prefixed with '*' by
set_builtin_user_assembler_name. So, to prevent the
reader side from adding a second '*', we omit it here. */
const char *str = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (expr));
if (strlen (str) > 1 && str[0] == '*')
streamer_write_string (ob, ob->main_stream, &str[1], true);
else
streamer_write_string (ob, ob->main_stream, NULL, true);
}
else
streamer_write_string (ob, ob->main_stream, NULL, true);
}