not: add testcases for canonicalization & simplification of negations

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

6 files changed, 73 insertions, 0 deletions

diff --git a/validation/optim/canonical-arg.c b/validation/optim/canonical-arg.c
new file mode 100644
index 00000000..a8ecc9bd
--- /dev/null
+++ b/validation/optim/canonical-arg.c
@@ -0,0 +1,20 @@
+int def(void);
+
+int canon_arg_arg(int a, int b)
+{
+	return (a + b) == (b + a);
+}
+
+int canon_arg_reg(int a)
+{
+	int b = def();
+	return (a + b) == (b + a);
+}
+
+/*
+ * check-name: canonical-arg
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/canonical-not.c b/validation/optim/canonical-not.c
new file mode 100644
index 00000000..9698590f
--- /dev/null
+++ b/validation/optim/canonical-not.c
@@ -0,0 +1,9 @@
+int canon_not(int a, int b) { return (a & ~b) == (~b & a); }
+
+/*
+ * check-name: canonical-not
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/cse-arg01.c b/validation/optim/cse-arg01.c
new file mode 100644
index 00000000..c3f2963f
--- /dev/null
+++ b/validation/optim/cse-arg01.c
@@ -0,0 +1,10 @@
+int foo(int a, int b) { return (a < b) == (b > a); }
+
+/*
+ * check-name: cse-arg01
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/cse-not01.c b/validation/optim/cse-not01.c
new file mode 100644
index 00000000..f87123f1
--- /dev/null
+++ b/validation/optim/cse-not01.c
@@ -0,0 +1,12 @@
+int and(int a) { return (~a & a) ==  0; }
+int ior(int a) { return (~a | a) == ~0; }
+int xor(int a) { return (~a ^ a) == ~0; }
+
+/*
+ * check-name: cse-not01
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/cse-not02.c b/validation/optim/cse-not02.c
new file mode 100644
index 00000000..aa54a375
--- /dev/null
+++ b/validation/optim/cse-not02.c
@@ -0,0 +1,12 @@
+int and(int a, int b) { return ((a == b) & (a != b)) == 0; }
+int ior(int a, int b) { return ((a == b) | (a != b)) == 1; }
+int xor(int a, int b) { return ((a == b) ^ (a != b)) == 1; }
+
+/*
+ * check-name: cse-not02
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */
diff --git a/validation/optim/cse-reg01.c b/validation/optim/cse-reg01.c
new file mode 100644
index 00000000..938858f4
--- /dev/null
+++ b/validation/optim/cse-reg01.c
@@ -0,0 +1,10 @@
+int foo(int a, int b) { int x = a + b, y = ~b; return (x < y) == (y > x); }
+
+/*
+ * check-name: cse-reg01
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-returns: 1
+ */