From: Aldy Hernandez <aldyh@redhat.com>
To: GCC patches <gcc-patches@gcc.gnu.org>
Cc: Andrew MacLeod <amacleod@redhat.com>, Aldy Hernandez <aldyh@redhat.com>
Subject: [COMMITTED 12/23] Implement operator_addr_expr for prange.
Date: Sat, 4 May 2024 10:30:40 +0200 [thread overview]
Message-ID: <20240504083056.139719-13-aldyh@redhat.com> (raw)
In-Reply-To: <20240504083056.139719-1-aldyh@redhat.com>
gcc/ChangeLog:
* range-op-mixed.h: Add overloaded declarations for pointer variants.
* range-op-ptr.cc (operator_addr_expr::op1_range): New.
(operator_addr_expr::pointers_handled_p): New.
---
gcc/range-op-mixed.h | 4 ++++
gcc/range-op-ptr.cc | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)
diff --git a/gcc/range-op-mixed.h b/gcc/range-op-mixed.h
index b69e674a78b..0df300781f1 100644
--- a/gcc/range-op-mixed.h
+++ b/gcc/range-op-mixed.h
@@ -655,6 +655,10 @@ public:
bool op1_range (irange &r, tree type,
const irange &lhs, const irange &op2,
relation_trio rel = TRIO_VARYING) const final override;
+ bool op1_range (prange &r, tree type,
+ const prange &lhs, const prange &op2,
+ relation_trio rel = TRIO_VARYING) const final override;
+ bool pointers_handled_p (range_op_dispatch_type, unsigned) const final override;
};
class operator_bitwise_not : public range_operator
diff --git a/gcc/range-op-ptr.cc b/gcc/range-op-ptr.cc
index 0addd1096c2..38d9f65566f 100644
--- a/gcc/range-op-ptr.cc
+++ b/gcc/range-op-ptr.cc
@@ -1021,6 +1021,44 @@ operator_max::pointers_handled_p (range_op_dispatch_type type,
}
}
+bool
+operator_addr_expr::op1_range (prange &r, tree type,
+ const prange &lhs,
+ const prange &op2,
+ relation_trio) const
+{
+ if (empty_range_varying (r, type, lhs, op2))
+ return true;
+
+ // Return a non-null pointer of the LHS type (passed in op2), but only
+ // if we cant overflow, eitherwise a no-zero offset could wrap to zero.
+ // See PR 111009.
+ if (!lhs.undefined_p ()
+ && !range_includes_zero_p (lhs)
+ && TYPE_OVERFLOW_UNDEFINED (type))
+ r.set_nonzero (type);
+ else
+ r.set_varying (type);
+ return true;
+}
+
+bool
+operator_addr_expr::pointers_handled_p (range_op_dispatch_type type,
+ unsigned dispatch) const
+{
+ switch (type)
+ {
+ case DISPATCH_FOLD_RANGE:
+ // NOTE: It looks like we never generate this combination.
+ gcc_unreachable ();
+ return false;
+ case DISPATCH_OP1_RANGE:
+ return dispatch == RO_PPP;
+ default:
+ return true;
+ }
+}
+
// Initialize any pointer operators to the primary table
void
--
2.44.0
next prev parent reply other threads:[~2024-05-04 8:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-04 8:30 [PATCH 00/23] prange: pointer ranges Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 01/23] Minimal prange class showing inlining degradation to VRP Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 02/23] Implement basic prange class Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 03/23] Add streaming support for prange Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 04/23] Add storage " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 05/23] Add hashing " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 06/23] Add prange implementation for get_legacy_range Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 07/23] Implement range-op dispatch for prange Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 08/23] Implement operator_identity " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 09/23] Implement operator_cst " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 10/23] Implement operator_cast " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 11/23] Implement operator_min and operator_max " Aldy Hernandez
2024-05-04 8:30 ` Aldy Hernandez [this message]
2024-05-04 8:30 ` [COMMITTED 13/23] Implement pointer_plus_operator " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 14/23] Implement operator_pointer_diff " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 15/23] Implement operator_bitwise_and " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 16/23] Implement operator_bitwise_or " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 17/23] Implement operator_not_equal " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 18/23] Implement operator_equal " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 19/23] Implement operator_lt " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 20/23] Implement operator_le " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 21/23] Implement operator_gt " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 22/23] Implement operator_ge " Aldy Hernandez
2024-05-04 8:30 ` [COMMITTED 23/23] Add prange entries in gimple-range-op.cc Aldy Hernandez
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