[PATCH v2 2/3] add more testcases for existing AND/OR simplifications

[Luc Van Oostenryck <luc.vanoostenryck@gmail.com>]

Add a few more testcases to catch possible future regressions.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 validation/optim/and-shl-or-and0.c  | 15 +++++++++++++++
 validation/optim/lsr-or-and0.c      | 22 ++++++++++++++++++++++
 validation/optim/shl-or-constant0.c | 12 ++++++++++++
 validation/optim/shl-or-constant1.c | 12 ++++++++++++
 validation/optim/shl-or-constant2.c | 12 ++++++++++++
 5 files changed, 73 insertions(+)
 create mode 100644 validation/optim/and-shl-or-and0.c
 create mode 100644 validation/optim/lsr-or-and0.c
 create mode 100644 validation/optim/shl-or-constant0.c
 create mode 100644 validation/optim/shl-or-constant1.c
 create mode 100644 validation/optim/shl-or-constant2.c

diff --git a/validation/optim/and-shl-or-and0.c b/validation/optim/and-shl-or-and0.c
new file mode 100644
index 000000000000..298dcb434fc7
--- /dev/null
+++ b/validation/optim/and-shl-or-and0.c
@@ -0,0 +1,15 @@
+// =>	(b << 12) & 0xfff00000
+unsigned and_shl_or_and0(unsigned a, unsigned b)
+{
+	return (((a & 0xfff00000) | b) << 12) & 0xfff00000;
+}
+
+/*
+ * check-name: and-shl-or-and0
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-excludes: or\\.
+ * check-output-excludes: lsr\\.
+ * check-output-excludes: %arg1\\.
+ */
diff --git a/validation/optim/lsr-or-and0.c b/validation/optim/lsr-or-and0.c
new file mode 100644
index 000000000000..fe3a2649eea2
--- /dev/null
+++ b/validation/optim/lsr-or-and0.c
@@ -0,0 +1,22 @@
+#define	S	12
+
+//	((x & M) | b) >> S;
+// ->	((x >> S) & (M >> S)) | (b >> S)
+// but	(M >> S) == 0
+// =>	(b >> S)
+
+int lsr_or_and0a(unsigned int x, unsigned int b)
+{
+	return ((x & 0x00000fff) | b) >> S;
+}
+
+/*
+ * check-name: lsr-or-and0
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-pattern(1): lsr\\.
+ * check-output-excludes: %arg1\\.
+ * check-output-excludes: and\\.
+ * check-output-excludes: or\\.
+ */
diff --git a/validation/optim/shl-or-constant0.c b/validation/optim/shl-or-constant0.c
new file mode 100644
index 000000000000..25347b4b3b20
--- /dev/null
+++ b/validation/optim/shl-or-constant0.c
@@ -0,0 +1,12 @@
+unsigned shl_or_constant0(unsigned a)
+{
+	return (a | 0xfff00000) << 12;
+}
+
+/*
+ * check-name: shl-or-constant0
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-excludes: or\\.
+ */
diff --git a/validation/optim/shl-or-constant1.c b/validation/optim/shl-or-constant1.c
new file mode 100644
index 000000000000..cd3ea8bb011b
--- /dev/null
+++ b/validation/optim/shl-or-constant1.c
@@ -0,0 +1,12 @@
+unsigned shl_or_constant1(unsigned a)
+{
+	return (a | 0x000fffff) << 12;
+}
+
+/*
+ * check-name: shl-or-constant1
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-contains: ret\\..*\\$0xfffff000
+ */
diff --git a/validation/optim/shl-or-constant2.c b/validation/optim/shl-or-constant2.c
new file mode 100644
index 000000000000..d4618eb1bab8
--- /dev/null
+++ b/validation/optim/shl-or-constant2.c
@@ -0,0 +1,12 @@
+unsigned shl_or_constant2(unsigned a)
+{
+	return (a | 0x00ffff0f) << 12;
+}
+
+/*
+ * check-name: shl-or-constant2
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-contains: or\\..*\\$0xfff0f
+ */
-- 
2.28.0