From 458eb00a569445b82decf5687cb4716217ad1ad6 Mon Sep 17 00:00:00 2001
From: Dan Liew <daniel.liew@imperial.ac.uk>
Date: Thu, 7 Nov 2013 10:55:12 +0000
Subject: Added a test case for testing overshift behaviour of Shl and fixed a
 bug in the previous commit where 32-bit width was assumed.

---
 test/Solver/lit.local.cfg                     |  2 ++
 test/Solver/overshift-left-by-symbolic.kquery | 26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 test/Solver/lit.local.cfg
 create mode 100644 test/Solver/overshift-left-by-symbolic.kquery

(limited to 'test')

diff --git a/test/Solver/lit.local.cfg b/test/Solver/lit.local.cfg
new file mode 100644
index 00000000..d64daf29
--- /dev/null
+++ b/test/Solver/lit.local.cfg
@@ -0,0 +1,2 @@
+# Look for .kquery files too
+config.suffixes.add('.kquery')
diff --git a/test/Solver/overshift-left-by-symbolic.kquery b/test/Solver/overshift-left-by-symbolic.kquery
new file mode 100644
index 00000000..9d0d272c
--- /dev/null
+++ b/test/Solver/overshift-left-by-symbolic.kquery
@@ -0,0 +1,26 @@
+# RUN: %kleaver %s > %t
+# RUN: not grep INVALID %t
+
+array shift[4] : w32 -> w8 = symbolic
+# ∀ x. x >= 32 → ( (2 << x) = 0 )
+# Check we left overshift to zero when shifting a constant ALWAYS!
+
+(query [ (Ule  (w32 32) (ReadLSB w32 (w32 0) shift)) ]
+    (Eq
+        (Shl w32 (w32 2)
+            (ReadLSB w32 (w32 0) shift)
+        )
+        (w32 0)
+    ) [ ] [shift] )
+
+# 64-bit version
+# ∀ x. x >= 64 → ( (2 << x) = 0 )
+array shift64[8] : w32 -> w8 = symbolic
+
+(query [ (Ule  (w64 64) (ReadLSB w64 (w32 0) shift64)) ]
+    (Eq
+        (Shl w64 (w64 2)
+            (ReadLSB w64 (w32 0) shift64)
+        )
+        (w64 0)
+    ) [ ] [shift64] )
-- 
cgit 1.4.1