gcc/
* coretypes.h (gimple_eh_else): New typedef.
(const_gimple_eh_else): New typedef.
* gimple.h (gimple_statement_base::as_a_gimple_eh_else): New.
(gimple_build_eh_else): Return a gimple_eh_else rather than a
plain gimple.
(gimple_eh_else_n_body_ptr): Require a gimple_eh_else rather than
a plain gimple.
(gimple_eh_else_n_body): Likewise.
(gimple_eh_else_e_body_ptr): Likewise.
(gimple_eh_else_e_body): Likewise.
(gimple_eh_else_set_n_body): Likewise.
(gimple_eh_else_set_e_body): Likewise.
* gimple-low.c (lower_stmt): Add checked cast to gimple_eh_else
within GIMPLE_EH_ELSE case of switch statement, introducing a new
local.
(gimple_stmt_may_fallthru): Likewise.
* gimple-pretty-print.c (dump_gimple_eh_else): Require a
gimple_eh_else rather than a plain gimple.
(pp_gimple_stmt_1): Add checked cast to gimple_eh_else within
GIMPLE_EH_ELSE case of switch statement
* gimple-walk.c (walk_gimple_stmt): Add checked cast to
gimple_eh_else within GIMPLE_EH_ELSE case of switch statement,
introducing a new local.
* gimple.c (gimple_build_eh_else): Return a gimple_eh_else
rather than a plain gimple.
(gimple_copy): Add checked casts to gimple_eh_else within
GIMPLE_EH_ELSE case of switch statement, introducing new locals.
* tree-cfg.c (verify_gimple_in_seq_2): Add checked cast to
gimple_eh_else within GIMPLE_EH_ELSE case of switch statement,
introducing a new local.
* tree-eh.c (collect_finally_tree): Likewise.
(replace_goto_queue_1): Likewise.
(get_eh_else): Return a gimple_eh_else rather than a plain gimple.
(honor_protect_cleanup_actions): Convert local "eh_else" from
gimple to gimple_eh_else.
(lower_try_finally_nofallthru): Likewise.
(lower_try_finally_onedest): Introduce locals "eh_else" and
"label_stmt", using them in favor of "x" for the gimple_eh_else
and the gimple_label.
(lower_try_finally_copy): Convert local "eh_else" from gimple to
gimple_eh_else.
(lower_try_finally_switch): Likewise.
(decide_copy_try_finally): Likewise.
(refactor_eh_r): Add checked cast to gimple_eh_else within
GIMPLE_EH_ELSE case of switch statement, introducing a new local.
---
gcc/coretypes.h | 4 ++++
gcc/gimple-low.c | 15 +++++++++----
gcc/gimple-pretty-print.c | 5 +++--
gcc/gimple-walk.c | 19 +++++++++-------
gcc/gimple.c | 16 ++++++++------
gcc/gimple.h | 32 +++++++++++++--------------
gcc/tree-cfg.c | 7 ++++--
gcc/tree-eh.c | 55 +++++++++++++++++++++++++++++++----------------
8 files changed, 95 insertions(+), 58 deletions(-)
diff --git a/gcc/coretypes.h b/gcc/coretypes.h
index 512967c..45b157c 100644
--- a/gcc/coretypes.h
+++ b/gcc/coretypes.h
@@ -125,6 +125,10 @@ struct gimple_statement_eh_mnt;
typedef struct gimple_statement_eh_mnt *gimple_eh_must_not_throw;
typedef const struct gimple_statement_eh_mnt *const_gimple_eh_must_not_throw;
+struct gimple_statement_eh_else;
+typedef struct gimple_statement_eh_else *gimple_eh_else;
+typedef const struct gimple_statement_eh_else *const_gimple_eh_else;
+
struct gimple_statement_phi;
typedef struct gimple_statement_phi *gimple_phi;
typedef const struct gimple_statement_phi *const_gimple_phi;
diff --git a/gcc/gimple-low.c b/gcc/gimple-low.c
index 3fa1c44..4056b3c 100644
--- a/gcc/gimple-low.c
+++ b/gcc/gimple-low.c
@@ -290,8 +290,11 @@ lower_stmt (gimple_stmt_iterator *gsi, struct lower_data
*data)
return;
case GIMPLE_EH_ELSE:
- lower_sequence (gimple_eh_else_n_body_ptr (stmt), data);
- lower_sequence (gimple_eh_else_e_body_ptr (stmt), data);
+ {
+ gimple_eh_else eh_else_stmt = stmt->as_a_gimple_eh_else ();
+ lower_sequence (gimple_eh_else_n_body_ptr (eh_else_stmt), data);
+ lower_sequence (gimple_eh_else_e_body_ptr (eh_else_stmt), data);
+ }
break;
case GIMPLE_NOP:
@@ -599,8 +602,12 @@ gimple_stmt_may_fallthru (gimple 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)));
+ {
+ gimple_eh_else eh_else_stmt = stmt->as_a_gimple_eh_else ();
+ return (gimple_seq_may_fallthru (gimple_eh_else_n_body (eh_else_stmt))
+ || gimple_seq_may_fallthru (gimple_eh_else_e_body (
+ eh_else_stmt)));
+ }
case GIMPLE_CALL:
/* Functions that do not return do not fall through. */
diff --git a/gcc/gimple-pretty-print.c b/gcc/gimple-pretty-print.c
index 027bb94..63443c2 100644
--- a/gcc/gimple-pretty-print.c
+++ b/gcc/gimple-pretty-print.c
@@ -1028,7 +1028,8 @@ dump_gimple_eh_must_not_throw (pretty_printer *buffer,
dumpfile.h). */
static void
-dump_gimple_eh_else (pretty_printer *buffer, gimple gs, int spc, int flags)
+dump_gimple_eh_else (pretty_printer *buffer, gimple_eh_else gs, int spc,
+ int flags)
{
if (flags & TDF_RAW)
dump_gimple_fmt (buffer, spc, flags,
@@ -2215,7 +2216,7 @@ pp_gimple_stmt_1 (pretty_printer *buffer, gimple gs, int
spc, int flags)
break;
case GIMPLE_EH_ELSE:
- dump_gimple_eh_else (buffer, gs, spc, flags);
+ dump_gimple_eh_else (buffer, gs->as_a_gimple_eh_else (), spc, flags);
break;
case GIMPLE_RESX:
diff --git a/gcc/gimple-walk.c b/gcc/gimple-walk.c
index f9b641d..c247210 100644
--- a/gcc/gimple-walk.c
+++ b/gcc/gimple-walk.c
@@ -566,14 +566,17 @@ walk_gimple_stmt (gimple_stmt_iterator *gsi, walk_stmt_fn
callback_stmt,
break;
case GIMPLE_EH_ELSE:
- ret = walk_gimple_seq_mod (gimple_eh_else_n_body_ptr (stmt),
- callback_stmt, callback_op, wi);
- if (ret)
- return wi->callback_result;
- ret = walk_gimple_seq_mod (gimple_eh_else_e_body_ptr (stmt),
- callback_stmt, callback_op, wi);
- if (ret)
- return wi->callback_result;
+ {
+ gimple_eh_else eh_else_stmt = stmt->as_a_gimple_eh_else ();
+ ret = walk_gimple_seq_mod (gimple_eh_else_n_body_ptr (eh_else_stmt),
+ callback_stmt, callback_op, wi);
+ if (ret)
+ return wi->callback_result;
+ ret = walk_gimple_seq_mod (gimple_eh_else_e_body_ptr (eh_else_stmt),
+ callback_stmt, callback_op, wi);
+ if (ret)
+ return wi->callback_result;
+ }
break;
case GIMPLE_TRY:
diff --git a/gcc/gimple.c b/gcc/gimple.c
index b487e46..9acfcc1 100644
--- a/gcc/gimple.c
+++ b/gcc/gimple.c
@@ -656,10 +656,10 @@ gimple_build_eh_must_not_throw (tree decl)
/* Build a GIMPLE_EH_ELSE statement. */
-gimple
+gimple_eh_else
gimple_build_eh_else (gimple_seq n_body, gimple_seq e_body)
{
- gimple p = gimple_alloc (GIMPLE_EH_ELSE, 0);
+ gimple_eh_else p = gimple_alloc (GIMPLE_EH_ELSE, 0)->as_a_gimple_eh_else ();
gimple_eh_else_set_n_body (p, n_body);
gimple_eh_else_set_e_body (p, e_body);
return p;
@@ -1663,10 +1663,14 @@ gimple_copy (gimple stmt)
break;
case GIMPLE_EH_ELSE:
- new_seq = gimple_seq_copy (gimple_eh_else_n_body (stmt));
- gimple_eh_else_set_n_body (copy, new_seq);
- new_seq = gimple_seq_copy (gimple_eh_else_e_body (stmt));
- gimple_eh_else_set_e_body (copy, new_seq);
+ {
+ gimple_eh_else eh_else_stmt = stmt->as_a_gimple_eh_else ();
+ gimple_eh_else eh_else_copy = copy->as_a_gimple_eh_else ();
+ new_seq = gimple_seq_copy (gimple_eh_else_n_body (eh_else_stmt));
+ gimple_eh_else_set_n_body (eh_else_copy, new_seq);
+ new_seq = gimple_seq_copy (gimple_eh_else_e_body (eh_else_stmt));
+ gimple_eh_else_set_e_body (eh_else_copy, new_seq);
+ }
break;
case GIMPLE_TRY:
diff --git a/gcc/gimple.h b/gcc/gimple.h
index 47377e9..a65cdcb 100644
--- a/gcc/gimple.h
+++ b/gcc/gimple.h
@@ -306,6 +306,12 @@ public:
return as_a <gimple_statement_eh_mnt> (this);
}
+ inline gimple_eh_else
+ as_a_gimple_eh_else ()
+ {
+ return as_a <gimple_statement_eh_else> (this);
+ }
+
inline gimple_phi
as_a_gimple_phi ()
{
@@ -1526,7 +1532,7 @@ gimple_asm gimple_build_asm_vec (const char *, vec<tree,
va_gc> *,
gimple_catch gimple_build_catch (tree, gimple_seq);
gimple_eh_filter gimple_build_eh_filter (tree, gimple_seq);
gimple_eh_must_not_throw gimple_build_eh_must_not_throw (tree);
-gimple gimple_build_eh_else (gimple_seq, gimple_seq);
+gimple_eh_else gimple_build_eh_else (gimple_seq, gimple_seq);
gimple_statement_try *gimple_build_try (gimple_seq, gimple_seq,
enum gimple_try_flags);
gimple gimple_build_wce (gimple_seq);
@@ -3834,46 +3840,38 @@ gimple_eh_must_not_throw_set_fndecl
(gimple_eh_must_not_throw eh_mnt_stmt,
/* GIMPLE_EH_ELSE accessors. */
static inline gimple_seq *
-gimple_eh_else_n_body_ptr (gimple gs)
+gimple_eh_else_n_body_ptr (gimple_eh_else eh_else_stmt)
{
- gimple_statement_eh_else *eh_else_stmt =
- as_a <gimple_statement_eh_else> (gs);
return &eh_else_stmt->n_body;
}
static inline gimple_seq
-gimple_eh_else_n_body (gimple gs)
+gimple_eh_else_n_body (gimple_eh_else eh_else_stmt)
{
- return *gimple_eh_else_n_body_ptr (gs);
+ return *gimple_eh_else_n_body_ptr (eh_else_stmt);
}
static inline gimple_seq *
-gimple_eh_else_e_body_ptr (gimple gs)
+gimple_eh_else_e_body_ptr (gimple_eh_else eh_else_stmt)
{
- gimple_statement_eh_else *eh_else_stmt =
- as_a <gimple_statement_eh_else> (gs);
return &eh_else_stmt->e_body;
}
static inline gimple_seq
-gimple_eh_else_e_body (gimple gs)
+gimple_eh_else_e_body (gimple_eh_else eh_else_stmt)
{
- return *gimple_eh_else_e_body_ptr (gs);
+ return *gimple_eh_else_e_body_ptr (eh_else_stmt);
}
static inline void
-gimple_eh_else_set_n_body (gimple gs, gimple_seq seq)
+gimple_eh_else_set_n_body (gimple_eh_else eh_else_stmt, gimple_seq seq)
{
- gimple_statement_eh_else *eh_else_stmt =
- as_a <gimple_statement_eh_else> (gs);
eh_else_stmt->n_body = seq;
}
static inline void
-gimple_eh_else_set_e_body (gimple gs, gimple_seq seq)
+gimple_eh_else_set_e_body (gimple_eh_else eh_else_stmt, gimple_seq seq)
{
- gimple_statement_eh_else *eh_else_stmt =
- as_a <gimple_statement_eh_else> (gs);
eh_else_stmt->e_body = seq;
}
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index c504798..fcd85e3 100644
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -4564,8 +4564,11 @@ verify_gimple_in_seq_2 (gimple_seq stmts)
break;
case GIMPLE_EH_ELSE:
- err |= verify_gimple_in_seq_2 (gimple_eh_else_n_body (stmt));
- err |= verify_gimple_in_seq_2 (gimple_eh_else_e_body (stmt));
+ {
+ gimple_eh_else eh_else = stmt->as_a_gimple_eh_else ();
+ err |= verify_gimple_in_seq_2 (gimple_eh_else_n_body (eh_else));
+ err |= verify_gimple_in_seq_2 (gimple_eh_else_e_body (eh_else));
+ }
break;
case GIMPLE_CATCH:
diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c
index 5a8f9e1..180b195 100644
--- a/gcc/tree-eh.c
+++ b/gcc/tree-eh.c
@@ -295,8 +295,11 @@ collect_finally_tree (gimple stmt, gimple region)
break;
case GIMPLE_EH_ELSE:
- collect_finally_tree_1 (gimple_eh_else_n_body (stmt), region);
- collect_finally_tree_1 (gimple_eh_else_e_body (stmt), region);
+ {
+ gimple_eh_else eh_else_stmt = stmt->as_a_gimple_eh_else ();
+ collect_finally_tree_1 (gimple_eh_else_n_body (eh_else_stmt), region);
+ collect_finally_tree_1 (gimple_eh_else_e_body (eh_else_stmt), region);
+ }
break;
default:
@@ -553,8 +556,13 @@ replace_goto_queue_1 (gimple stmt, struct leh_tf_state *tf,
replace_goto_queue_stmt_list (gimple_eh_filter_failure_ptr (stmt), tf);
break;
case GIMPLE_EH_ELSE:
- replace_goto_queue_stmt_list (gimple_eh_else_n_body_ptr (stmt), tf);
- replace_goto_queue_stmt_list (gimple_eh_else_e_body_ptr (stmt), tf);
+ {
+ gimple_eh_else eh_else_stmt = stmt->as_a_gimple_eh_else ();
+ replace_goto_queue_stmt_list (gimple_eh_else_n_body_ptr (eh_else_stmt),
+ tf);
+ replace_goto_queue_stmt_list (gimple_eh_else_e_body_ptr (eh_else_stmt),
+ tf);
+ }
break;
default:
@@ -964,14 +972,14 @@ lower_try_finally_fallthru_label (struct leh_tf_state *tf)
/* A subroutine of lower_try_finally. If FINALLY consits of a
GIMPLE_EH_ELSE node, return it. */
-static inline gimple
+static inline gimple_eh_else
get_eh_else (gimple_seq finally)
{
gimple x = gimple_seq_first_stmt (finally);
if (gimple_code (x) == GIMPLE_EH_ELSE)
{
gcc_assert (gimple_seq_singleton_p (finally));
- return x;
+ return x->as_a_gimple_eh_else ();
}
return NULL;
}
@@ -1005,7 +1013,8 @@ honor_protect_cleanup_actions (struct leh_state
*outer_state,
gimple_stmt_iterator gsi;
bool finally_may_fallthru;
gimple_seq finally;
- gimple x, eh_else;
+ gimple x;
+ gimple_eh_else eh_else;
/* First check for nothing to do. */
if (lang_hooks.eh_protect_cleanup_actions == NULL)
@@ -1073,7 +1082,8 @@ lower_try_finally_nofallthru (struct leh_state *state,
struct leh_tf_state *tf)
{
tree lab;
- gimple x, eh_else;
+ gimple x;
+ gimple_eh_else eh_else;
gimple_seq finally;
struct goto_queue_node *q, *qe;
@@ -1137,6 +1147,8 @@ static void
lower_try_finally_onedest (struct leh_state *state, struct leh_tf_state *tf)
{
struct goto_queue_node *q, *qe;
+ gimple_eh_else eh_else;
+ gimple_label label_stmt;
gimple x;
gimple_seq finally;
gimple_stmt_iterator gsi;
@@ -1149,13 +1161,13 @@ lower_try_finally_onedest (struct leh_state *state,
struct leh_tf_state *tf)
/* Since there's only one destination, and the destination edge can only
either be EH or non-EH, that implies that all of our incoming edges
are of the same type. Therefore we can lower EH_ELSE immediately. */
- x = get_eh_else (finally);
- if (x)
+ eh_else = get_eh_else (finally);
+ if (eh_else)
{
if (tf->may_throw)
- finally = gimple_eh_else_e_body (x);
+ finally = gimple_eh_else_e_body (eh_else);
else
- finally = gimple_eh_else_n_body (x);
+ finally = gimple_eh_else_n_body (eh_else);
}
lower_eh_constructs_1 (state, &finally);
@@ -1190,8 +1202,8 @@ lower_try_finally_onedest (struct leh_state *state,
struct leh_tf_state *tf)
}
finally_label = create_artificial_label (loc);
- x = gimple_build_label (finally_label);
- gimple_seq_add_stmt (&tf->top_p_seq, x);
+ label_stmt = gimple_build_label (finally_label);
+ gimple_seq_add_stmt (&tf->top_p_seq, label_stmt);
gimple_seq_add_seq (&tf->top_p_seq, finally);
@@ -1239,7 +1251,8 @@ lower_try_finally_copy (struct leh_state *state, struct
leh_tf_state *tf)
gimple_seq finally;
gimple_seq new_stmt;
gimple_seq seq;
- gimple x, eh_else;
+ gimple x;
+ gimple_eh_else eh_else;
tree tmp;
location_t tf_loc = gimple_location (tf->try_finally_expr);
@@ -1372,7 +1385,8 @@ lower_try_finally_switch (struct leh_state *state, struct
leh_tf_state *tf)
tree last_case;
vec<tree> case_label_vec;
gimple_seq switch_body = NULL;
- gimple x, eh_else;
+ gimple x;
+ gimple_eh_else eh_else;
tree tmp;
gimple switch_stmt;
gimple_seq finally;
@@ -1587,7 +1601,7 @@ static bool
decide_copy_try_finally (int ndests, bool may_throw, gimple_seq finally)
{
int f_estimate, sw_estimate;
- gimple eh_else;
+ gimple_eh_else eh_else;
/* If there's an EH_ELSE involved, the exception path is separate
and really doesn't come into play for this computation. */
@@ -3102,8 +3116,11 @@ refactor_eh_r (gimple_seq seq)
refactor_eh_r (gimple_eh_filter_failure (one));
break;
case GIMPLE_EH_ELSE:
- refactor_eh_r (gimple_eh_else_n_body (one));
- refactor_eh_r (gimple_eh_else_e_body (one));
+ {
+ gimple_eh_else eh_else_stmt = one->as_a_gimple_eh_else ();
+ refactor_eh_r (gimple_eh_else_n_body (eh_else_stmt));
+ refactor_eh_r (gimple_eh_else_e_body (eh_else_stmt));
+ }
break;
default:
break;
--
1.8.5.3
