1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-Wextra.c b/gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-Wextra.c
new file mode 100644
index 000000000..f8f528c99
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-Wextra.c
@@ -0,0 +1,70 @@
+/* Test that -Wtype-limits is enabled by -Wextra */
+/* { dg-do compile } */
+/* { dg-excess-errors "short=int" { target { avr-*-* } } }  */
+/* { dg-options "-Wextra" } */
+
+void a (unsigned char x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison is always false due to limited range of data type" } */
+  if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
+  if (0 > x)  return;/* { dg-warning "comparison is always false due to limited range of data type" } */
+  if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
+  if (x <= 255) /* { dg-warning "comparison is always true due to limited range of data type" } */
+    return;
+  if (255 >= x) /* { dg-warning "comparison is always true due to limited range of data type" } */
+    return;
+  if ((int)x <= 255) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 16 } */
+    return;
+  if (255 >= (unsigned char) 1)
+    return;
+
+}
+
+void b (unsigned short x)
+{                    /* { dg-warning "comparison of unsigned expression < 0 is always false" "" { target { ! int32plus } } 25 } */
+  if (x < 0)  return;/* { dg-warning "comparison is always false due to limited range of data type" "" { target { int32plus } } } */
+                     /* { dg-warning "comparison of unsigned expression >= 0 is always true" "" { target { ! int32plus } } 27 } */
+  if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" "" { target { int32plus } } } */
+                     /* { dg-warning "comparison of unsigned expression < 0 is always false" "" { target { ! int32plus } } 29 } */
+  if (0 > x)  return;/* { dg-warning "comparison is always false due to limited range of data type" "" { target { int32plus } } } */
+                     /* { dg-warning "comparison of unsigned expression >= 0 is always true" "" { target { ! int32plus } } 31 } */
+  if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" "" { target { int32plus } } } */
+}
+
+void c (unsigned int x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (0 > x)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (1U >= 0) return;
+  if (1U < 0) return;
+  if (0 <= 1U) return;
+  if (0 > 1U) return;
+}
+
+void d (unsigned long x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (0 > x)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+}
+
+void e (unsigned long long x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (0 > x)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+}
+
+int test (int x) 
+{
+  if ((long long)x <= 0x123456789ABCLL) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 64 } */
+    return 1;
+  else 
+    return 0;
+}
+
+