Add basic integer comparison test.

plat/qemuppc/tests/intcmp.c

@@ -0,0 +1,65 @@
+#include "test.h"
+
+/* Constants in globals to defeat constant folding. */
+int one = 1;
+int zero = 0;
+
+/* Bypasses the CRT, so there's no stdio or BSS initialisation. */
+void _m_a_i_n(void)
+{
+    ASSERT(zero == zero);
+    ASSERT(one  != zero);
+    ASSERT(zero <  one);
+    ASSERT(zero <= one);
+    ASSERT(zero <= zero);
+    ASSERT(one  >  zero);
+    ASSERT(one  >= zero);
+    ASSERT(one  >= one);
+
+    ASSERT(zero == 0);
+    ASSERT(one  != 0);
+    ASSERT(zero <  1);
+    ASSERT(zero <= 1);
+    ASSERT(zero <= 0);
+    ASSERT(one  >  0);
+    ASSERT(one  >= 0);
+    ASSERT(one  >= 1);
+
+    ASSERT(0 == zero);
+    ASSERT(1 != zero);
+    ASSERT(0 <  one);
+    ASSERT(0 <= one);
+    ASSERT(0 <= zero);
+    ASSERT(1 >  zero);
+    ASSERT(1 >= zero);
+    ASSERT(1 >= one);
+
+    ASSERT((unsigned int)zero == (unsigned int)zero);
+    ASSERT((unsigned int)one  != (unsigned int)zero);
+    ASSERT((unsigned int)zero <  (unsigned int)one);
+    ASSERT((unsigned int)zero <= (unsigned int)one);
+    ASSERT((unsigned int)zero <= (unsigned int)zero);
+    ASSERT((unsigned int)one  >  (unsigned int)zero);
+    ASSERT((unsigned int)one  >= (unsigned int)zero);
+    ASSERT((unsigned int)one  >= (unsigned int)one);
+
+    ASSERT((unsigned int)zero == (unsigned int)0);
+    ASSERT((unsigned int)one  != (unsigned int)0);
+    ASSERT((unsigned int)zero <  (unsigned int)1);
+    ASSERT((unsigned int)zero <= (unsigned int)1);
+    ASSERT((unsigned int)zero <= (unsigned int)0);
+    ASSERT((unsigned int)one  >  (unsigned int)0);
+    ASSERT((unsigned int)one  >= (unsigned int)0);
+    ASSERT((unsigned int)one  >= (unsigned int)1);
+
+    ASSERT((unsigned int)0 == (unsigned int)zero);
+    ASSERT((unsigned int)1 != (unsigned int)zero);
+    ASSERT((unsigned int)0 <  (unsigned int)one);
+    ASSERT((unsigned int)0 <= (unsigned int)one);
+    ASSERT((unsigned int)0 <= (unsigned int)zero);
+    ASSERT((unsigned int)1 >  (unsigned int)zero);
+    ASSERT((unsigned int)1 >= (unsigned int)zero);
+    ASSERT((unsigned int)1 >= (unsigned int)one);
+
+    finished();
+}