From cb409a3b3367109944ff332899ec401dc60f678c Mon Sep 17 00:00:00 2001
From: Andrew MacLeod <amacleod@redhat.com>
Date: Fri, 9 Jun 2023 13:25:49 -0400
Subject: [PATCH 03/31] Unify NE_EXPR range operator
Move the declaration of the class to the range-op-mixed header, add the
floating point prototypes as well, and use it in the new unified table.
* range-op-float.cc (foperator_not_equal): Remove. Move prototypes
to range-op-mixed.h
(operator_equal::fold_range): Rename from foperator_not_equal.
(operator_equal::op1_range): Ditto.
(float_table::float_table): Remove NE_EXPR.
* range-op-mixed.h (class operator_not_equal): Combined from integer
and float files.
* range-op.cc (op_equal): New object.
(unified_table::unified_table): Add NE_EXPR.
(class operator_not_equal): Move to range-op-mixed.h.
(not_equal_op1_op2_relation): Fold into
operator_not_equal::op1_op2_relation.
(integral_table::integral_table): Remove NE_EXPR.
(pointer_table::pointer_table): Remove NE_EXPR.
* range-op.h (not_equal_op1_op2_relation): Delete.
---
gcc/range-op-float.cc | 36 +++++++++---------------------------
gcc/range-op-mixed.h | 29 +++++++++++++++++++++++++++++
gcc/range-op.cc | 41 ++++++++++-------------------------------
gcc/range-op.h | 1 -
4 files changed, 48 insertions(+), 59 deletions(-)
@@ -675,28 +675,10 @@ operator_equal::op1_range (frange &r, tree type,
return true;
}
-class foperator_not_equal : public range_operator
-{
- using range_operator::fold_range;
- using range_operator::op1_range;
- using range_operator::op1_op2_relation;
-public:
- bool fold_range (irange &r, tree type,
- const frange &op1, const frange &op2,
- relation_trio rel = TRIO_VARYING) const final override;
- relation_kind op1_op2_relation (const irange &lhs) const final override
- {
- return not_equal_op1_op2_relation (lhs);
- }
- bool op1_range (frange &r, tree type,
- const irange &lhs, const frange &op2,
- relation_trio = TRIO_VARYING) const final override;
-} fop_not_equal;
-
bool
-foperator_not_equal::fold_range (irange &r, tree type,
- const frange &op1, const frange &op2,
- relation_trio rel) const
+operator_not_equal::fold_range (irange &r, tree type,
+ const frange &op1, const frange &op2,
+ relation_trio rel) const
{
if (frelop_early_resolve (r, type, op1, op2, rel, VREL_NE))
return true;
@@ -750,10 +732,10 @@ foperator_not_equal::fold_range (irange &r, tree type,
}
bool
-foperator_not_equal::op1_range (frange &r, tree type,
- const irange &lhs,
- const frange &op2,
- relation_trio trio) const
+operator_not_equal::op1_range (frange &r, tree type,
+ const irange &lhs,
+ const frange &op2,
+ relation_trio trio) const
{
relation_kind rel = trio.op1_op2 ();
switch (get_bool_state (r, lhs, type))
@@ -2086,7 +2068,8 @@ public:
op1_no_nan.clear_nan ();
if (op2.maybe_isnan ())
op2_no_nan.clear_nan ();
- if (!fop_not_equal.fold_range (r, type, op1_no_nan, op2_no_nan, rel))
+ if (!range_op_handler (NE_EXPR).fold_range (r, type, op1_no_nan,
+ op2_no_nan, rel))
return false;
// The result is the same as the ordered version when the
// comparison is true or when the operands cannot be NANs.
@@ -2803,7 +2786,6 @@ float_table::float_table ()
// All the relational operators are expected to work, because the
// calculation of ranges on outgoing edges expect the handlers to be
// present.
- set (NE_EXPR, fop_not_equal);
set (LT_EXPR, fop_lt);
set (LE_EXPR, fop_le);
set (GT_EXPR, fop_gt);
@@ -112,4 +112,33 @@ public:
const irange &rh) const final override;
};
+class operator_not_equal : public range_operator
+{
+public:
+ using range_operator::fold_range;
+ using range_operator::op1_range;
+ using range_operator::op2_range;
+ using range_operator::op1_op2_relation;
+ bool fold_range (irange &r, tree type,
+ const irange &op1, const irange &op2,
+ relation_trio = TRIO_VARYING) const final override;
+ bool fold_range (irange &r, tree type,
+ const frange &op1, const frange &op2,
+ relation_trio rel = TRIO_VARYING) const final override;
+
+ bool op1_range (irange &r, tree type,
+ const irange &lhs, const irange &op2,
+ relation_trio = TRIO_VARYING) const final override;
+ bool op1_range (frange &r, tree type,
+ const irange &lhs, const frange &op2,
+ relation_trio = TRIO_VARYING) const final override;
+
+ bool op2_range (irange &r, tree type,
+ const irange &lhs, const irange &op1,
+ relation_trio = TRIO_VARYING) const final override;
+
+ relation_kind op1_op2_relation (const irange &lhs) const final override;
+ void update_bitmask (irange &r, const irange &lh,
+ const irange &rh) const final override;
+};
#endif // GCC_RANGE_OP_MIXED_H
@@ -63,6 +63,7 @@ class unified_table : public range_op_table
// Instantiate the operators which apply to multiple types here.
operator_equal op_equal;
+operator_not_equal op_not_equal;
// Invoke the initialization routines for each class of range.
@@ -73,6 +74,7 @@ unified_table::unified_table ()
initialize_float_ops ();
set (EQ_EXPR, op_equal);
+ set (NE_EXPR, op_not_equal);
}
// The tables are hidden and accessed via a simple extern function.
@@ -926,34 +928,19 @@ operator_equal::op2_range (irange &r, tree type,
return operator_equal::op1_range (r, type, lhs, op1, rel.swap_op1_op2 ());
}
-class operator_not_equal : public range_operator
+// -------------------------------------------------------------------------
+
+void
+operator_not_equal::update_bitmask (irange &r, const irange &lh,
+ const irange &rh) const
{
- using range_operator::fold_range;
- using range_operator::op1_range;
- using range_operator::op2_range;
- using range_operator::op1_op2_relation;
-public:
- virtual bool fold_range (irange &r, tree type,
- const irange &op1,
- const irange &op2,
- relation_trio = TRIO_VARYING) const;
- virtual bool op1_range (irange &r, tree type,
- const irange &lhs,
- const irange &op2,
- relation_trio = TRIO_VARYING) const;
- virtual bool op2_range (irange &r, tree type,
- const irange &lhs,
- const irange &op1,
- relation_trio = TRIO_VARYING) const;
- virtual relation_kind op1_op2_relation (const irange &lhs) const;
- void update_bitmask (irange &r, const irange &lh, const irange &rh) const
- { update_known_bitmask (r, NE_EXPR, lh, rh); }
-} op_not_equal;
+ update_known_bitmask (r, NE_EXPR, lh, rh);
+}
// Check if the LHS range indicates a relation between OP1 and OP2.
relation_kind
-not_equal_op1_op2_relation (const irange &lhs)
+operator_not_equal::op1_op2_relation (const irange &lhs) const
{
if (lhs.undefined_p ())
return VREL_UNDEFINED;
@@ -968,12 +955,6 @@ not_equal_op1_op2_relation (const irange &lhs)
return VREL_VARYING;
}
-relation_kind
-operator_not_equal::op1_op2_relation (const irange &lhs) const
-{
- return not_equal_op1_op2_relation (lhs);
-}
-
bool
operator_not_equal::fold_range (irange &r, tree type,
const irange &op1,
@@ -4866,7 +4847,6 @@ pointer_or_operator::wi_fold (irange &r, tree type,
integral_table::integral_table ()
{
- set (NE_EXPR, op_not_equal);
set (LT_EXPR, op_lt);
set (LE_EXPR, op_le);
set (GT_EXPR, op_gt);
@@ -4919,7 +4899,6 @@ pointer_table::pointer_table ()
set (MIN_EXPR, op_ptr_min_max);
set (MAX_EXPR, op_ptr_min_max);
- set (NE_EXPR, op_not_equal);
set (LT_EXPR, op_lt);
set (LE_EXPR, op_le);
set (GT_EXPR, op_gt);
@@ -266,7 +266,6 @@ extern void wi_set_zero_nonzero_bits (tree type,
wide_int &mustbe_nonzero);
// op1_op2_relation methods that are the same across irange and frange.
-relation_kind not_equal_op1_op2_relation (const irange &lhs);
relation_kind lt_op1_op2_relation (const irange &lhs);
relation_kind le_op1_op2_relation (const irange &lhs);
relation_kind gt_op1_op2_relation (const irange &lhs);
--
2.40.1