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diff --git a/support/regression/tests/scott-compare3.c b/support/regression/tests/scott-compare3.c
new file mode 100644
index 00000000..fdca6b6a
--- /dev/null
+++ b/support/regression/tests/scott-compare3.c
@@ -0,0 +1,172 @@
+/**
+   compare3.c
+   regression testing program for comparing literals to variables
+*/
+#include <testfwk.h>
+
+unsigned int aint0 = 0;
+unsigned int aint1 = 0;
+unsigned char achar0 = 0;
+unsigned char achar1 = 0;
+
+// compare to 0
+// assumes
+// achar0 == 0
+// achar1 != 0
+// aint0  == 0
+// aint1  != 0
+
+void c_0(void)
+{
+
+  ASSERT(!(achar0 != 0));
+
+  ASSERT(!(achar0));
+
+  ASSERT(!(achar1 == 0));
+
+  ASSERT(!(!achar1));
+
+  ASSERT(!(aint0 != 0));
+
+  ASSERT(!(aint0));
+
+  ASSERT(!(aint1 == 0));
+
+  ASSERT(!(!aint1));
+
+}
+
+// compare to 1
+// assumes
+// achar0 != 1
+// achar1 == 1
+// aint0  != 1
+// aint1  == 1
+
+void c_1(void)
+{
+
+  ASSERT(!(achar0 == 1));
+
+  ASSERT(!(achar1 != 1));
+
+  ASSERT(!(aint0 == 1));
+
+  ASSERT(!(aint1 != 1));
+
+}
+
+// compare to 2
+// assumes
+// achar0 == 2
+// aint0  == 2
+
+void c_2(void)
+{
+
+  ASSERT(!(achar0 != 2));
+
+  ASSERT(!(aint0 != 2));
+
+}
+
+// compare to 0xff
+// assumes
+// achar0 == 0xff
+// aint0  == 0xff
+
+void c_ff(void)
+{
+
+  ASSERT(!(achar0 != 0xff));
+
+  ASSERT(!(aint0 != 0xff));
+
+  ASSERT(!(aint0 == 0xfe));
+
+  ASSERT(!(aint0 == 0xff00U));
+
+}
+
+
+// compare to 0x00a5
+// assumes
+// achar0  == 0xa5
+// aint0  == 0x00a5
+
+void c_a5(void)
+{
+
+  ASSERT(!(achar0 != 0xa5));
+
+  ASSERT(!(aint0 != 0xa5));
+
+  ASSERT(!(aint0 == 0xa4));
+
+  ASSERT(!(aint0 == 0xa500U));
+
+}
+
+// compare to 0xa500
+// assumes
+// achar0  == 0xa5
+// aint0  == 0xa500
+
+void c_a500(void)
+{
+
+  ASSERT(!(achar0 == 0xa500U));
+
+  ASSERT(!(aint0 != 0xa500U));
+
+  ASSERT(!(aint0 == 0xa400U));
+
+  ASSERT(!(aint0 == 0x00a5));
+
+}
+
+// compare to 0xabcd
+// assumes
+// achar0  == 0xa5
+// aint0  == 0xabcd
+
+void c_abcd(void)
+{
+
+  ASSERT(!(achar0 == 0xabcdU));
+
+  ASSERT(!(aint0 != 0xabcdU));
+
+  ASSERT(!(aint0 == 0xab00U));
+
+  ASSERT(!(aint0 == 0x00cd));
+
+  ASSERT(!(aint0 == 0x1234abcdU));
+
+}
+
+void
+testCompare3 (void)
+{
+
+  aint1 = 1;
+  achar1 = 1;
+  c_0();
+  c_1();
+
+  aint0 = 2;
+  achar0 = 2;
+  c_2();
+
+  aint0 = 0xff;
+  achar0 = 0xff;
+  c_ff();
+
+  aint0 = 0xa5;
+  achar0 = 0xa5;
+  c_a5();
+
+  aint0 = 0xabcd;
+  c_abcd();
+}