Werror-1.c, [...]: New.

* gcc.dg/Werror-1.c, gcc.dg/Werror-2.c, gcc.dg/Werror-3.c,
gcc.dg/Werror-4.c, gcc.dg/Werror-5.c, gcc.dg/Werror-6.c,
gcc.dg/Werror-7.c, gcc.dg/Werror-8.c, gcc.dg/Werror-9.c,
gcc.dg/Werror-10.c, gcc.dg/Werror-11.c, gcc.dg/Werror-12: New.

From-SVN: r109908

gcc/testsuite/ChangeLog

@@ -1,3 +1,10 @@
+2006-01-18  DJ Delorie  <dj@redhat.com>
+
+	* gcc.dg/Werror-1.c, gcc.dg/Werror-2.c, gcc.dg/Werror-3.c,
+	gcc.dg/Werror-4.c, gcc.dg/Werror-5.c, gcc.dg/Werror-6.c,
+	gcc.dg/Werror-7.c, gcc.dg/Werror-8.c, gcc.dg/Werror-9.c,
+	gcc.dg/Werror-10.c, gcc.dg/Werror-11.c, gcc.dg/Werror-12: New.
+
 2006-01-18  Jeff Law  <law@redhat.com>
 
 	* gcc.c-torture/execute/930529-1.x: Use -fwrapv as test depends

gcc/testsuite/gcc.dg/Werror-1.c

@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-Walways-true -Wattributes -Werror" } */
+/* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */
+
+/* This is the first in a series of test cases that test the
+   interaction between -Wfoo, -Werror, -Werror=foo, and #pragma GCC
+   diagnostic error foo.  This one has all the bits we're testing, the
+   others are subsets of this one.  */
+
+#pragma GCC diagnostic error "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-error "error: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-10.c

@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes -Werror" } */
+/* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */
+
+/* Make sure #pragma can work with -Werror.  */
+
+#pragma GCC diagnostic error "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-error "error: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-11.c

@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes -Werror" } */
+/* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */
+
+/* Make sure #pragma can override -Werror.  */
+
+#pragma GCC diagnostic warning "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-warning "warning: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-12.c

@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes -Walways-true" } */
+
+/* Make sure #pragma can override -Wfoo.  */
+
+#pragma GCC diagnostic ignored "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-bogus "true" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-2.c

@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+/* This one is the baseline.  Make sure with no option we get no
+   warnings.  */
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-3.c

@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-Walways-true -Wattributes" } */
+
+/* Make sure the command line option enables the warning.  */
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-warning "warning: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-4.c

@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes" } */
+
+/* Make sure the pragma enables the error.  */
+
+#pragma GCC diagnostic error "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-error "error: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-5.c

@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-Walways-true -Wattributes -Werror" } */
+/* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */
+
+/* Make sure -Werror turns warnings in to errors.  */
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-warning "warning: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-6.c

@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes -Werror=always-true" } */
+
+/* Make sure -Werror-foo emits an error and not a warning */
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-error "error: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-7.c

@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-Walways-true -Werror -Wno-error=always-true -Wattributes" } */
+/* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */
+
+/* Make sure -Wno-error= overrides -Werror.  */
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-warning "warning: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-8.c

@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes" } */
+
+/* Make sure #pragma can enable a warning.  */
+
+#pragma GCC diagnostic warning "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-warning "warning: .* will always evaluate as 'true'" } */
+    grill ();
+}

gcc/testsuite/gcc.dg/Werror-9.c

@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-Wattributes" } */
+
+/* Make sure #pragma can enable a warning as an error.  */
+
+#pragma GCC diagnostic error "-Walways-true"
+
+void __attribute__((dj)) bar() { }	/* { dg-warning "warning: .* attribute directive ignored" } */
+
+int i;
+
+void
+foo ()
+{
+  if (&i)	/* { dg-error "error: .* will always evaluate as 'true'" } */
+    grill ();
+}