From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To: linux-sparse@vger.kernel.org
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH 1/5] add testcases for stores simplifications
Date: Sun, 11 Apr 2021 00:30:40 +0200 [thread overview]
Message-ID: <20210410223044.86100-2-luc.vanoostenryck@gmail.com> (raw)
In-Reply-To: <20210410223044.86100-1-luc.vanoostenryck@gmail.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
validation/memops/kill-dead-store-parent0.c | 15 ++++++++++++
validation/memops/kill-dead-store-parent2.c | 26 +++++++++++++++++++++
validation/memops/kill-redundant-store0.c | 14 +++++++++++
3 files changed, 55 insertions(+)
create mode 100644 validation/memops/kill-dead-store-parent0.c
create mode 100644 validation/memops/kill-dead-store-parent2.c
create mode 100644 validation/memops/kill-redundant-store0.c
diff --git a/validation/memops/kill-dead-store-parent0.c b/validation/memops/kill-dead-store-parent0.c
new file mode 100644
index 000000000000..1413134b8c23
--- /dev/null
+++ b/validation/memops/kill-dead-store-parent0.c
@@ -0,0 +1,15 @@
+void foo(int *ptr, int p)
+{
+ if (p)
+ *ptr = 1;
+ *ptr = 0;
+}
+
+/*
+ * check-name: kill-dead-store-parent0
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-pattern(1): store
+ */
diff --git a/validation/memops/kill-dead-store-parent2.c b/validation/memops/kill-dead-store-parent2.c
new file mode 100644
index 000000000000..b563fd31b669
--- /dev/null
+++ b/validation/memops/kill-dead-store-parent2.c
@@ -0,0 +1,26 @@
+int ladder02(int *ptr, int p, int x)
+{
+ *ptr = x++;
+ if (p)
+ goto l11;
+ else
+ goto l12;
+l11:
+ *ptr = x++;
+ goto l20;
+l12:
+ *ptr = x++;
+ goto l20;
+l20:
+ *ptr = x++;
+ return *ptr;
+}
+
+/*
+ * check-name: kill-dead-store-parent2
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-pattern(1): store
+ */
diff --git a/validation/memops/kill-redundant-store0.c b/validation/memops/kill-redundant-store0.c
new file mode 100644
index 000000000000..e911166dd953
--- /dev/null
+++ b/validation/memops/kill-redundant-store0.c
@@ -0,0 +1,14 @@
+void foo(int *ptr)
+{
+ int i = *ptr;
+ *ptr = i;
+}
+
+/*
+ * check-name: kill-redundant-store0
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-excludes: store
+ */
--
2.31.1
next prev parent reply other threads:[~2021-04-10 22:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-10 22:30 [PATCH 0/5] kill more dead stores Luc Van Oostenryck
2021-04-10 22:30 ` Luc Van Oostenryck [this message]
2021-04-10 22:30 ` [PATCH 2/5] extract try_to_kill_store() from kill_dominated_stores() Luc Van Oostenryck
2021-04-10 22:30 ` [PATCH 3/5] volatile stores are never dead Luc Van Oostenryck
2021-04-10 22:30 ` [PATCH 4/5] kill parent's dead stores too Luc Van Oostenryck
2021-04-10 22:30 ` [PATCH 5/5] kill redundant stores (local) Luc Van Oostenryck
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