1 files changed, 55 insertions, 0 deletions
diff --git a/usr/src/tools/smatch/src/validation/optim/canonical-add.c b/usr/src/tools/smatch/src/validation/optim/canonical-add.c
new file mode 100644
index 0000000000..6f32a61e20
--- /dev/null
+++ b/usr/src/tools/smatch/src/validation/optim/canonical-add.c
@@ -0,0 +1,55 @@
+int xpc_add_ypc(int x, int y)
+{
+	return (x + 1) + (y + 1);
+}
+
+int xmc_add_ypc(int x, int y)
+{
+	return (x - 1) + (y + 1);
+}
+
+int xpc_add_ymc(int x, int y)
+{
+	return (x + 1) + (y - 1);
+}
+
+int xmc_add_ymc(int x, int y)
+{
+	return (x - 1) + (y - 1);
+}
+
+int xpc_sub_ypc(int x, int y)
+{
+	return (x + 1) - (y + 1);
+}
+
+int xmc_sub_ypc(int x, int y)
+{
+	return (x - 1) - (y + 1);
+}
+
+int xpc_sub_ymc(int x, int y)
+{
+	return (x + 1) - (y - 1);
+}
+
+int xmc_sub_ymc(int x, int y)
+{
+	return (x - 1) - (y - 1);
+}
+
+/*
+ * check-name: canonical-add
+ * check-description:
+ *	1) verify that constants in add/sub chains are
+ *	   pushed at the right of the whole chain.
+ *	   For example '(a + 1) + b' must be canonicalized into '(a + b) + 1'
+ *	   This is needed for '(a + 1) + b - 1' to be simplified into '(a + b)'
+ *
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ * check-output-ignore
+
+ * check-output-excludes: \\$1
+ * check-output-excludes: \\$-1
+ */