/* GIMPLE lowering pass. Converts High GIMPLE into Low GIMPLE.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of GCC.
{
x = gimple_build_return (NULL);
gimple_set_location (x, cfun->function_end_locus);
+ gimple_set_block (x, DECL_INITIAL (current_function_decl));
gsi_insert_after (&i, x, GSI_CONTINUE_LINKING);
}
tree disp_label, disp_var, arg;
/* Build 'DISP_LABEL:' and insert. */
- disp_label = create_artificial_label ();
+ disp_label = create_artificial_label (cfun->function_end_locus);
/* This mark will create forward edges from every call site. */
DECL_NONLOCAL (disp_label) = 1;
cfun->has_nonlocal_label = 1;
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
PROP_gimple_any, /* properties_required */
PROP_gimple_lcf, /* properties_provided */
0, /* properties_destroyed */
};
+/* Verify if the type of the argument matches that of the function
+ declaration. If we cannot verify this or there is a mismatch,
+ mark the call expression so it doesn't get inlined later. */
+
+static void
+check_call_args (gimple stmt)
+{
+ tree fndecl, parms, p;
+ unsigned int i, nargs;
+
+ if (gimple_call_cannot_inline_p (stmt))
+ return;
+
+ nargs = gimple_call_num_args (stmt);
+
+ /* Get argument types for verification. */
+ fndecl = gimple_call_fndecl (stmt);
+ parms = NULL_TREE;
+ if (fndecl)
+ parms = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
+ else if (POINTER_TYPE_P (TREE_TYPE (gimple_call_fn (stmt))))
+ parms = TYPE_ARG_TYPES (TREE_TYPE (TREE_TYPE (gimple_call_fn (stmt))));
+
+ /* Verify if the type of the argument matches that of the function
+ declaration. If we cannot verify this or there is a mismatch,
+ mark the call expression so it doesn't get inlined later. */
+ if (fndecl && DECL_ARGUMENTS (fndecl))
+ {
+ for (i = 0, p = DECL_ARGUMENTS (fndecl);
+ i < nargs;
+ i++, p = TREE_CHAIN (p))
+ {
+ /* We cannot distinguish a varargs function from the case
+ of excess parameters, still deferring the inlining decision
+ to the callee is possible. */
+ if (!p)
+ break;
+ if (p == error_mark_node
+ || gimple_call_arg (stmt, i) == error_mark_node
+ || !fold_convertible_p (DECL_ARG_TYPE (p),
+ gimple_call_arg (stmt, i)))
+ {
+ gimple_call_set_cannot_inline (stmt, true);
+ break;
+ }
+ }
+ }
+ else if (parms)
+ {
+ for (i = 0, p = parms; i < nargs; i++, p = TREE_CHAIN (p))
+ {
+ /* If this is a varargs function defer inlining decision
+ to callee. */
+ if (!p)
+ break;
+ if (TREE_VALUE (p) == error_mark_node
+ || gimple_call_arg (stmt, i) == error_mark_node
+ || TREE_CODE (TREE_VALUE (p)) == VOID_TYPE
+ || !fold_convertible_p (TREE_VALUE (p),
+ gimple_call_arg (stmt, i)))
+ {
+ gimple_call_set_cannot_inline (stmt, true);
+ break;
+ }
+ }
+ }
+ else
+ {
+ if (nargs != 0)
+ gimple_call_set_cannot_inline (stmt, true);
+ }
+}
+
+
/* Lower sequence SEQ. Unlike gimplification the statements are not relowered
when they are changed -- if this has to be done, the lowering routine must
do it explicitly. DATA is passed through the recursion. */
case GIMPLE_PREDICT:
case GIMPLE_LABEL:
case GIMPLE_SWITCH:
- case GIMPLE_CHANGE_DYNAMIC_TYPE:
case GIMPLE_OMP_FOR:
case GIMPLE_OMP_SECTIONS:
case GIMPLE_OMP_SECTIONS_SWITCH:
lower_builtin_setjmp (gsi);
return;
}
+ check_call_args (stmt);
}
break;
}
/* Not found. Create a new label and record the return statement. */
- tmp_rs.label = create_artificial_label ();
+ tmp_rs.label = create_artificial_label (cfun->function_end_locus);
tmp_rs.stmt = stmt;
VEC_safe_push (return_statements_t, heap, data->return_statements, &tmp_rs);
found:
t = gimple_build_goto (tmp_rs.label);
gimple_set_location (t, gimple_location (stmt));
+ gimple_set_block (t, gimple_block (stmt));
gsi_insert_before (gsi, t, GSI_SAME_STMT);
gsi_remove (gsi, false);
}
lower_builtin_setjmp (gimple_stmt_iterator *gsi)
{
gimple stmt = gsi_stmt (*gsi);
- tree cont_label = create_artificial_label ();
- tree next_label = create_artificial_label ();
+ location_t loc = gimple_location (stmt);
+ tree cont_label = create_artificial_label (loc);
+ tree next_label = create_artificial_label (loc);
tree dest, t, arg;
gimple g;
t = implicit_built_in_decls[BUILT_IN_SETJMP_SETUP];
g = gimple_build_call (t, 2, gimple_call_arg (stmt, 0), arg);
gimple_set_location (g, gimple_location (stmt));
+ gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
/* Build 'DEST = 0' and insert. */
g = gimple_build_assign (dest, fold_convert (TREE_TYPE (dest),
integer_zero_node));
gimple_set_location (g, gimple_location (stmt));
+ gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
}
/* Build 'goto CONT_LABEL' and insert. */
g = gimple_build_goto (cont_label);
- gsi_insert_before (gsi, g, TSI_SAME_STMT);
+ gsi_insert_before (gsi, g, GSI_SAME_STMT);
/* Build 'NEXT_LABEL:' and insert. */
g = gimple_build_label (next_label);
t = implicit_built_in_decls[BUILT_IN_SETJMP_RECEIVER];
g = gimple_build_call (t, 1, arg);
gimple_set_location (g, gimple_location (stmt));
+ gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
/* Build 'DEST = 1' and insert. */
g = gimple_build_assign (dest, fold_convert (TREE_TYPE (dest),
integer_one_node));
gimple_set_location (g, gimple_location (stmt));
+ gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
}
{
record_vars_into (vars, current_function_decl);
}
-
-
-/* Mark BLOCK used if it has a used variable in it, then recurse over its
- subblocks. */
-
-static void
-mark_blocks_with_used_vars (tree block)
-{
- tree var;
- tree subblock;
-
- if (!TREE_USED (block))
- {
- for (var = BLOCK_VARS (block);
- var;
- var = TREE_CHAIN (var))
- {
- if (TREE_USED (var))
- {
- TREE_USED (block) = true;
- break;
- }
- }
- }
- for (subblock = BLOCK_SUBBLOCKS (block);
- subblock;
- subblock = BLOCK_CHAIN (subblock))
- mark_blocks_with_used_vars (subblock);
-}
-
-/* Mark the used attribute on blocks correctly. */
-
-static unsigned int
-mark_used_blocks (void)
-{
- mark_blocks_with_used_vars (DECL_INITIAL (current_function_decl));
- return 0;
-}
-
-
-struct gimple_opt_pass pass_mark_used_blocks =
-{
- {
- GIMPLE_PASS,
- "blocks", /* name */
- NULL, /* gate */
- mark_used_blocks, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- 0, /* tv_id */
- 0, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- TODO_dump_func /* todo_flags_finish */
- }
-};
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