/* GIMPLE lowering pass. Converts High GIMPLE into Low GIMPLE.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GCC.
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
-#include "rtl.h"
-#include "varray.h"
#include "gimple.h"
#include "tree-iterator.h"
#include "tree-inline.h"
-#include "diagnostic.h"
-#include "langhooks.h"
-#include "langhooks-def.h"
#include "tree-flow.h"
-#include "timevar.h"
-#include "except.h"
-#include "hashtab.h"
#include "flags.h"
#include "function.h"
-#include "expr.h"
-#include "toplev.h"
+#include "diagnostic-core.h"
#include "tree-pass.h"
/* The differences between High GIMPLE and Low GIMPLE are the
x = gimple_build_label (t.label);
gsi_insert_after (&i, x, GSI_CONTINUE_LINKING);
-
- /* Remove the line number from the representative return statement.
- It now fills in for many such returns. Failure to remove this
- will result in incorrect results for coverage analysis. */
- gimple_set_location (t.stmt, UNKNOWN_LOCATION);
gsi_insert_after (&i, t.stmt, GSI_CONTINUE_LINKING);
}
and insert. */
disp_var = create_tmp_var (ptr_type_node, "setjmpvar");
arg = build_addr (disp_label, current_function_decl);
- t = implicit_built_in_decls[BUILT_IN_SETJMP_DISPATCHER];
+ t = builtin_decl_implicit (BUILT_IN_SETJMP_DISPATCHER);
x = gimple_build_call (t, 1, arg);
gimple_call_set_lhs (x, disp_var);
PROP_gimple_lcf, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
- TODO_dump_func /* todo_flags_finish */
+ 0 /* todo_flags_finish */
}
};
+
/* Verify if the type of the argument matches that of the function
declaration. If we cannot verify this or there is a mismatch,
return false. */
-bool
-gimple_check_call_args (gimple stmt)
+static bool
+gimple_check_call_args (gimple stmt, tree fndecl)
{
- tree fndecl, parms, p;
+ tree parms, p;
unsigned int i, nargs;
+ /* Calls to internal functions always match their signature. */
+ if (gimple_call_internal_p (stmt))
+ return true;
+
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))));
+ else
+ parms = TYPE_ARG_TYPES (gimple_call_fntype (stmt));
/* Verify if the type of the argument matches that of the function
declaration. If we cannot verify this or there is a mismatch,
{
for (i = 0, p = DECL_ARGUMENTS (fndecl);
i < nargs;
- i++, p = TREE_CHAIN (p))
+ i++, p = DECL_CHAIN (p))
{
/* We cannot distinguish a varargs function from the case
of excess parameters, still deferring the inlining decision
return true;
}
+/* Verify if the type of the argument and lhs of CALL_STMT matches
+ that of the function declaration CALLEE.
+ If we cannot verify this or there is a mismatch, return false. */
+
+bool
+gimple_check_call_matching_types (gimple call_stmt, tree callee)
+{
+ tree lhs;
+
+ if ((DECL_RESULT (callee)
+ && !DECL_BY_REFERENCE (DECL_RESULT (callee))
+ && (lhs = gimple_call_lhs (call_stmt)) != NULL_TREE
+ && !useless_type_conversion_p (TREE_TYPE (DECL_RESULT (callee)),
+ TREE_TYPE (lhs))
+ && !fold_convertible_p (TREE_TYPE (DECL_RESULT (callee)), lhs))
+ || !gimple_check_call_args (call_stmt, callee))
+ return false;
+ return 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
lower_sequence (gimple_eh_filter_failure (stmt), data);
break;
+ case GIMPLE_EH_ELSE:
+ lower_sequence (gimple_eh_else_n_body (stmt), data);
+ lower_sequence (gimple_eh_else_e_body (stmt), data);
+ break;
+
case GIMPLE_NOP:
case GIMPLE_ASM:
case GIMPLE_ASSIGN:
data->cannot_fallthru = false;
return;
+ case GIMPLE_TRANSACTION:
+ lower_sequence (gimple_transaction_body (stmt), data);
+ break;
+
default:
gcc_unreachable ();
}
return (gimple_seq_may_fallthru (gimple_try_eval (stmt))
&& gimple_seq_may_fallthru (gimple_try_cleanup (stmt)));
+ case GIMPLE_EH_ELSE:
+ return (gimple_seq_may_fallthru (gimple_eh_else_n_body (stmt))
+ || gimple_seq_may_fallthru (gimple_eh_else_e_body (stmt)));
+
case GIMPLE_CALL:
/* Functions that do not return do not fall through. */
return (gimple_call_flags (stmt) & ECF_NORETURN) == 0;
tmp_rs = *VEC_index (return_statements_t, data->return_statements, i);
if (gimple_return_retval (stmt) == gimple_return_retval (tmp_rs.stmt))
- goto found;
+ {
+ /* Remove the line number from the representative return statement.
+ It now fills in for many such returns. Failure to remove this
+ will result in incorrect results for coverage analysis. */
+ gimple_set_location (tmp_rs.stmt, UNKNOWN_LOCATION);
+
+ goto found;
+ }
}
/* Not found. Create a new label and record the return statement. */
/* Generate a goto statement and remove the return statement. */
found:
+ /* When not optimizing, make sure user returns are preserved. */
+ if (!optimize && gimple_has_location (stmt))
+ DECL_ARTIFICIAL (tmp_rs.label) = 0;
t = gimple_build_goto (tmp_rs.label);
gimple_set_location (t, gimple_location (stmt));
gimple_set_block (t, gimple_block (stmt));
/* Build '__builtin_setjmp_setup (BUF, NEXT_LABEL)' and insert. */
arg = build_addr (next_label, current_function_decl);
- t = implicit_built_in_decls[BUILT_IN_SETJMP_SETUP];
+ t = builtin_decl_implicit (BUILT_IN_SETJMP_SETUP);
g = gimple_build_call (t, 2, gimple_call_arg (stmt, 0), arg);
gimple_set_location (g, loc);
gimple_set_block (g, gimple_block (stmt));
/* Build 'DEST = 0' and insert. */
if (dest)
{
- g = gimple_build_assign (dest, fold_convert_loc (loc, TREE_TYPE (dest),
- integer_zero_node));
+ g = gimple_build_assign (dest, build_zero_cst (TREE_TYPE (dest)));
gimple_set_location (g, loc);
gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
/* Build '__builtin_setjmp_receiver (NEXT_LABEL)' and insert. */
arg = build_addr (next_label, current_function_decl);
- t = implicit_built_in_decls[BUILT_IN_SETJMP_RECEIVER];
+ t = builtin_decl_implicit (BUILT_IN_SETJMP_RECEIVER);
g = gimple_build_call (t, 1, arg);
gimple_set_location (g, loc);
gimple_set_block (g, gimple_block (stmt));
if (fn != current_function_decl)
push_cfun (DECL_STRUCT_FUNCTION (fn));
- for (; vars; vars = TREE_CHAIN (vars))
+ for (; vars; vars = DECL_CHAIN (vars))
{
tree var = vars;
continue;
/* Record the variable. */
- cfun->local_decls = tree_cons (NULL_TREE, var,
- cfun->local_decls);
+ add_local_decl (cfun, var);
+ if (gimple_referenced_vars (cfun))
+ add_referenced_var (var);
}
if (fn != current_function_decl)
OSDN Git Service
