gcc/
* ipa-split.c (check_forbidden_calls): Replace check against
GIMPLE_COND with a dyn_cast_gimple_cond, introducing a gimple_cond
local.
* predict.c (predict_extra_loop_exits): Likewise.
* tree-vrp.c (fold_predicate_in): Likewise.
(simplify_stmt_for_jump_threading): Likewise.
* predict.c (is_comparison_with_loop_invariant_p): Require a
gimple_cond.
(predict_iv_comparison): Add checked cast to gimple_cond once we
know the code is GIMPLE_COND.
(predict_loops): Change type of "stmt" to gimple_cond,
adding checked casts to its assignments (which are both guarded by
checks against GIMPLE_COND).
* tree-vrp.c (find_conditional_asserts): Require a gimple_cond.
(vrp_evaluate_conditional): Likewise.
(find_assert_locations_1): Add checked cast to gimple_cond.
(vrp_visit_stmt): Likewise.
---
gcc/ipa-split.c | 5 +++--
gcc/predict.c | 21 ++++++++++++++-------
gcc/tree-vrp.c | 25 +++++++++++++------------
3 files changed, 30 insertions(+), 21 deletions(-)
diff --git a/gcc/ipa-split.c b/gcc/ipa-split.c
index 1287757..0808f9c 100644
--- a/gcc/ipa-split.c
+++ b/gcc/ipa-split.c
@@ -326,9 +326,10 @@ check_forbidden_calls (gimple stmt)
basic_block use_bb, forbidden_bb;
enum tree_code code;
edge true_edge, false_edge;
- gimple use_stmt = USE_STMT (use_p);
+ gimple_cond use_stmt;
- if (gimple_code (use_stmt) != GIMPLE_COND)
+ use_stmt = USE_STMT (use_p)->dyn_cast_gimple_cond ();
+ if (!use_stmt)
continue;
/* Assuming canonical form for GIMPLE_COND here, with constant
diff --git a/gcc/predict.c b/gcc/predict.c
index 7fa31d8..c3ab183 100644
--- a/gcc/predict.c
+++ b/gcc/predict.c
@@ -1107,7 +1107,7 @@ get_base_value (tree t)
Otherwise return false and set LOOP_INVAIANT to NULL. */
static bool
-is_comparison_with_loop_invariant_p (gimple stmt, struct loop *loop,
+is_comparison_with_loop_invariant_p (gimple_cond stmt, struct loop *loop,
tree *loop_invariant,
enum tree_code *compare_code,
tree *loop_step,
@@ -1272,7 +1272,8 @@ predict_iv_comparison (struct loop *loop, basic_block bb,
stmt = last_stmt (bb);
if (!stmt || gimple_code (stmt) != GIMPLE_COND)
return;
- if (!is_comparison_with_loop_invariant_p (stmt, loop, &compare_var,
+ if (!is_comparison_with_loop_invariant_p (stmt->as_a_gimple_cond (),
+ loop, &compare_var,
&compare_code,
&compare_step_var,
&compare_base))
@@ -1465,10 +1466,16 @@ predict_extra_loop_exits (edge exit_edge)
gimple lhs_def_stmt;
gimple_phi phi_stmt;
tree cmp_rhs, cmp_lhs;
- gimple cmp_stmt = last_stmt (exit_edge->src);
+ gimple last;
+ gimple_cond cmp_stmt;
- if (!cmp_stmt || gimple_code (cmp_stmt) != GIMPLE_COND)
+ last = last_stmt (exit_edge->src);
+ if (!last)
+ return;
+ cmp_stmt = last->dyn_cast_gimple_cond ();
+ if (!cmp_stmt)
return;
+
cmp_rhs = gimple_cond_rhs (cmp_stmt);
cmp_lhs = gimple_cond_lhs (cmp_stmt);
if (!TREE_CONSTANT (cmp_rhs)
@@ -1535,7 +1542,7 @@ predict_loops (void)
tree loop_bound_step = NULL;
tree loop_bound_var = NULL;
tree loop_iv_base = NULL;
- gimple stmt = NULL;
+ gimple_cond stmt = NULL;
exits = get_loop_exit_edges (loop);
n_exits = exits.length ();
@@ -1602,12 +1609,12 @@ predict_loops (void)
if (nb_iter->stmt
&& gimple_code (nb_iter->stmt) == GIMPLE_COND)
{
- stmt = nb_iter->stmt;
+ stmt = nb_iter->stmt->as_a_gimple_cond ();
break;
}
if (!stmt && last_stmt (loop->header)
&& gimple_code (last_stmt (loop->header)) == GIMPLE_COND)
- stmt = last_stmt (loop->header);
+ stmt = last_stmt (loop->header)->as_a_gimple_cond ();
if (stmt)
is_comparison_with_loop_invariant_p (stmt, loop,
&loop_bound_var,
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index 62ec9f5..5b701a6 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -5584,7 +5584,7 @@ register_edge_assert_for (tree name, edge e,
gimple_stmt_iterator si,
list of assertions for the corresponding operands. */
static bool
-find_conditional_asserts (basic_block bb, gimple last)
+find_conditional_asserts (basic_block bb, gimple_cond last)
{
bool need_assert;
gimple_stmt_iterator bsi;
@@ -5826,7 +5826,7 @@ find_assert_locations_1 (basic_block bb, sbitmap live)
&& gimple_code (last) == GIMPLE_COND
&& !fp_predicate (last)
&& !ZERO_SSA_OPERANDS (last, SSA_OP_USE))
- need_assert |= find_conditional_asserts (bb, last);
+ need_assert |= find_conditional_asserts (bb, last->as_a_gimple_cond ());
/* If BB's last statement is a switch statement involving integer
operands, determine if we need to add ASSERT_EXPRs. */
@@ -7200,7 +7200,7 @@ vrp_evaluate_conditional (enum tree_code code, tree op0,
tree op1, gimple stmt)
SSA_PROP_VARYING. */
static enum ssa_prop_result
-vrp_visit_cond_stmt (gimple stmt, edge *taken_edge_p)
+vrp_visit_cond_stmt (gimple_cond stmt, edge *taken_edge_p)
{
tree val;
bool sop;
@@ -7613,7 +7613,7 @@ vrp_visit_stmt (gimple stmt, edge *taken_edge_p, tree
*output_p)
else if (is_gimple_assign (stmt) || is_gimple_call (stmt))
return vrp_visit_assignment_or_call (stmt, output_p);
else if (gimple_code (stmt) == GIMPLE_COND)
- return vrp_visit_cond_stmt (stmt, taken_edge_p);
+ return vrp_visit_cond_stmt (stmt->as_a_gimple_cond (), taken_edge_p);
else if (gimple_code (stmt) == GIMPLE_SWITCH)
return vrp_visit_switch_stmt (stmt->as_a_gimple_switch (), taken_edge_p);
@@ -9490,10 +9490,10 @@ fold_predicate_in (gimple_stmt_iterator *si)
gimple_assign_rhs2 (stmt),
stmt);
}
- else if (gimple_code (stmt) == GIMPLE_COND)
- val = vrp_evaluate_conditional (gimple_cond_code (stmt),
- gimple_cond_lhs (stmt),
- gimple_cond_rhs (stmt),
+ else if (gimple_cond cond_stmt = stmt->dyn_cast_gimple_cond ())
+ val = vrp_evaluate_conditional (gimple_cond_code (cond_stmt),
+ gimple_cond_lhs (cond_stmt),
+ gimple_cond_rhs (cond_stmt),
stmt);
else
return false;
@@ -9558,10 +9558,11 @@ static vec<tree> equiv_stack;
static tree
simplify_stmt_for_jump_threading (gimple stmt, gimple within_stmt)
{
- if (gimple_code (stmt) == GIMPLE_COND)
- return vrp_evaluate_conditional (gimple_cond_code (stmt),
- gimple_cond_lhs (stmt),
- gimple_cond_rhs (stmt), within_stmt);
+ if (gimple_cond cond_stmt = stmt->dyn_cast_gimple_cond ())
+ return vrp_evaluate_conditional (gimple_cond_code (cond_stmt),
+ gimple_cond_lhs (cond_stmt),
+ gimple_cond_rhs (cond_stmt),
+ within_stmt);
if (gimple_assign assign_stmt = stmt->dyn_cast_gimple_assign ())
{
--
1.8.5.3
