+// Signed comparisons of the form: (variable>=LIT)
+//
+// This regression test exercises all of the boundary
+// conditions in literal less than comparisons. There
+// are numerous opportunities to optimize these comparison
+// and each one has an astonishing capability of failing
+// a boundary condition.
+
+unsigned char success = 0;
+unsigned char failures = 0;
+unsigned char dummy = 0;
+unsigned char result = 0;
+
+//bit bit0 = 0;
+int int0 = 0;
+int int1 = 0;
+unsigned char uchar0 = 0;
+unsigned char uchar1 = 0;
+signed char char0 = 0;
+signed char char1 = 0;
+char long0 = 0;
+char long1 = 0;
+
+void
+done ()
+{
+ dummy++;
+}
+
+
+void c_char_gte_lit1(unsigned char expected_result)
+{
+ result = 0;
+
+ if(char0 >= -0x7f)
+ result |= 1;
+
+
+ if(char0 >= -1)
+ result |= 2;
+
+ if(char0 >= 0)
+ result |= 4;
+
+ if(char0 >= 1)
+ result |= 8;
+
+ if(char0 >= 0x7e)
+ result |= 0x10;
+
+ if(char0 >= 0x7f)
+ result |= 0x20;
+
+ if(result != expected_result)
+ failures++;
+}
+
+
+void char_compare(void)
+{
+ char0 = 0x7f;
+ c_char_gte_lit1(0x3f);
+
+ char0 = 0x7e;
+ c_char_gte_lit1(0x1f);
+
+ char0 = 0x40;
+ c_char_gte_lit1(0x0f);
+
+ char0 = 0x2;
+ c_char_gte_lit1(0x0f);
+
+ char0 = 0x1;
+ c_char_gte_lit1(0x0f);
+
+ char0 = 0;
+ c_char_gte_lit1(0x07);
+
+ char0 = -1;
+ c_char_gte_lit1(0x03);
+
+ char0 = -2;
+ c_char_gte_lit1(0x01);
+
+ char0 = -0x40;
+ c_char_gte_lit1(0x01);
+
+ char0 = -0x7e;
+ c_char_gte_lit1(0x01);
+
+ char0 = -0x7f;
+ c_char_gte_lit1(0x01);
+
+ char0 = 0x80;
+ c_char_gte_lit1(0x00);
+
+
+ /* Now test entire range */
+
+ for(char0=1; char0 != 0x7e; char0++)
+ c_char_gte_lit1(0x0f);
+
+ for(char0=-0x7f; char0 != -1; char0++)
+ c_char_gte_lit1(0x01);
+
+}
+
+
+void c_int_gte_lit1(unsigned char expected_result)
+{
+ result = 0;
+
+ if(int0 >= 0)
+ result |= 1;
+
+ if(int0 >= 1)
+ result |= 2;
+
+
+ if(int0 >= 0xff)
+ result |= 4;
+
+ if(int0 >= 0x100)
+ result |= 8;
+
+ if(int0 >= 0x0101)
+ result |= 0x10;
+
+ if(int0 >= 0x01ff)
+ result |= 0x20;
+
+ if(int0 >= 0x0200)
+ result |= 0x40;
+
+ if(int0 >= 0x0201)
+ result |= 0x80;
+
+ if(result != expected_result)
+ failures=1;
+
+}
+
+
+void int_compare1(void)
+{
+ int0 = -1;
+ c_int_gte_lit1(0x00);
+
+ int0 = 0;
+ c_int_gte_lit1(0x01);
+
+ int0 = 1;
+ c_int_gte_lit1(0x03);
+
+ int0 = 2;
+ c_int_gte_lit1(0x03);
+
+ int0 = 0xfe;
+ c_int_gte_lit1(0x03);
+
+ int0 = 0xff;
+ c_int_gte_lit1(0x07);
+
+ int0 = 0x100;
+ c_int_gte_lit1(0x0f);
+
+ int0 = 0x101;
+ c_int_gte_lit1(0x1f);
+
+ int0 = 0x102;
+ c_int_gte_lit1(0x1f);
+
+ int0 = 0x1fe;
+ c_int_gte_lit1(0x1f);
+
+ int0 = 0x1ff;
+ c_int_gte_lit1(0x3f);
+
+ int0 = 0x200;
+ c_int_gte_lit1(0x7f);
+
+ int0 = 0x201;
+ c_int_gte_lit1(0xff);
+
+ int0 = 0x7f00;
+ c_int_gte_lit1(0xff);
+
+ /* now check contiguous ranges */
+
+ for(int0 = -0x7fff; int0 != -1; int0++)
+ c_int_gte_lit1(0x00);
+
+ for(int0 = 1; int0 != 0xff; int0++)
+ c_int_gte_lit1(0x03);
+
+ for(int0 = 0x201; int0 != 0x7fff; int0++)
+ c_int_gte_lit1(0xff);
+
+}
+
+
+void c_int_gte_lit2(unsigned char expected_result)
+{
+ result = 0;
+
+ if(int0 >= -0x7fff)
+ result |= 1;
+
+ if(int0 >= -0x7f00)
+ result |= 2;
+
+ if(int0 >= -0x7eff)
+ result |= 4;
+
+ if(int0 >= -0x7e00)
+ result |= 8;
+
+ if(int0 >= -0x0101)
+ result |= 0x10;
+
+ if(int0 >= -0x0100)
+ result |= 0x20;
+
+ if(int0 >= -0xff)
+ result |= 0x40;
+
+ if(int0 >= -1)
+ result |= 0x80;
+
+ if(result != expected_result)
+ failures=1;
+}
+
+void int_compare2(void)
+{
+ int0 = -0x7fff;
+ c_int_gte_lit2(0x01);
+
+ int0 = -0x7f00;
+ c_int_gte_lit2(0x03);
+
+ int0 = -0x7eff;
+ c_int_gte_lit2(0x07);
+
+ int0 = -0x7e00;
+ c_int_gte_lit2(0x0f);
+
+ int0 = -0x7dff;
+ c_int_gte_lit2(0x0f);
+
+ int0 = -0x4567;
+ c_int_gte_lit2(0x0f);
+
+ int0 = -0x200;
+ c_int_gte_lit2(0x0f);
+
+ int0 = -0x102;
+ c_int_gte_lit2(0x0f);
+
+ int0 = -0x101;
+ c_int_gte_lit2(0x1f);
+
+ int0 = -0x100;
+ c_int_gte_lit2(0x3f);
+
+ int0 = -0xff;
+ c_int_gte_lit2(0x7f);
+
+ int0 = -0x02;
+ c_int_gte_lit2(0x7f);
+
+ int0 = -0x01;
+ c_int_gte_lit2(0xff);
+
+ int0 = 0;
+ c_int_gte_lit2(0xff);
+
+ int0 = 1;
+ c_int_gte_lit2(0xff);
+
+ int0 = 0x7fff;
+ c_int_gte_lit2(0xff);
+
+ /* now check contiguous ranges */
+
+ for(int0 = -0x7fff; int0 != -0x7f00; int0++)
+ c_int_gte_lit2(0x01);
+
+ for(int0 = -0x7e00; int0 != -0x101; int0++)
+ c_int_gte_lit2(0x0f);
+
+ for(int0 = -1; int0 != 0x7fff; int0++)
+ c_int_gte_lit2(0xff);
+
+}
+
+
+
+
+void
+main (void)
+{
+ char_compare();
+ int_compare1();
+ int_compare2();
+
+ success = failures;
+ done ();
+}