re PR middle-end/47646 (Revision 169918 caused many testsuite failures)

2011-02-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	PR middle-end/47646
	* gcc.dg/pr39666-2.c (foo2): If the location of the statement
	using the variable is known the warning is emitted there.
	* gcc.dg/uninit-pr19430.c (foo): Likewise.
	* g++.dg/warn/Wuninitialized-5.C (foo): Likewise.

	* c-c++-common/pr20000.c (g): Both warnings occur at the return
	statement.
	(vg): Likewise.
	* gcc.dg/noreturn-1.c (foo5): Likewise.
	* objc.dg/attributes/method-noreturn-1.m (method1): Likewise.
	(method2): Likewise.

	* gfortran.dg/pr25923.f90 (baz): The warning will now be issued for
	the return statement using the uninitialized variable.
	* gfortran.dg/pr39666-2.f90 (f): Likewise.

From-SVN: r169927

gcc/testsuite/ChangeLog

+2011-02-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+	PR middle-end/47646
+	* gcc.dg/pr39666-2.c (foo2): If the location of the statement
+	using the variable is known the warning is emitted there.
+	* gcc.dg/uninit-pr19430.c (foo): Likewise.
+	* g++.dg/warn/Wuninitialized-5.C (foo): Likewise.
+
+	* c-c++-common/pr20000.c (g): Both warnings occur at the return
+	statement.
+	(vg): Likewise.
+	* gcc.dg/noreturn-1.c (foo5): Likewise.
+	* objc.dg/attributes/method-noreturn-1.m (method1): Likewise.
+	(method2): Likewise.
+
+	* gfortran.dg/pr25923.f90 (baz): The warning will now be issued for
+	the return statement using the uninitialized variable.
+	* gfortran.dg/pr39666-2.f90 (f): Likewise.
+
 2011-02-08  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/47639

gcc/testsuite/c-c++-common/pr20000.c

@@ -10,7 +10,7 @@ void h(void) __attribute__((noreturn));
 
 int g(void) {
   return 1; /* { dg-warning "function declared 'noreturn' has a 'return' statement" } */
-} /* { dg-warning "'noreturn' function does return" } */
+}           /* { dg-warning "'noreturn' function does return" "" { target *-*-* } 12 } */
 
 int g2(void) {
   h();
@@ -25,7 +25,7 @@ int vg2(void); /* { dg-bogus ".noreturn. function returns non-void value" } */
 
 int vg(void) {
   return 1; /* { dg-warning "function declared 'noreturn' has a 'return' statement" "" { target c } 27 } */
-} /* { dg-warning "'noreturn' function does return" "" { target c } 28  } */
+}           /* { dg-warning "'noreturn' function does return" "" { target c } 27  } */
 
 int vg2(void) {
   h();

gcc/testsuite/g++.dg/warn/Wuninitialized-5.C

@@ -5,7 +5,7 @@
 int
 foo (int i)
 {
-  int j;	// { dg-warning "may be used uninitialized" }
+  int j;
   switch (i)
     {
     case -__INT_MAX__ - 1 ... -1:
@@ -18,5 +18,5 @@ foo (int i)
       j = 4;
       break;
     }
-  return j;
+  return j;	// { dg-warning "may be used uninitialized" }
 }

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

@@ -35,7 +35,7 @@ void
 foo5(void)
 {
   return; /* { dg-warning "'noreturn' has a 'return' statement" "detect invalid return" } */
-} /* { dg-warning "function does return" "detect return from noreturn" } */
+}         /* { dg-warning "function does return" "detect return from noreturn" { target c } 37 } */
 
 extern void foo6(void);
 void

gcc/testsuite/gcc.dg/pr39666-2.c

@@ -5,7 +5,7 @@
 int
 foo (int i)
 {
-  int j;	/* { dg-warning "may be used uninitialized" } */
+  int j;
   switch (i)
     {
     case -__INT_MAX__ - 1 ... -1:
@@ -18,5 +18,5 @@ foo (int i)
       j = 4;
       break;
     }
-  return j;
+  return j;	/* { dg-warning "may be used uninitialized" } */
 }

gcc/testsuite/gcc.dg/uninit-pr19430.c

@@ -18,8 +18,8 @@ foo (int i)
 
 
 int foo2( void ) {
-  int rc;  /* { dg-warning "'rc' is used uninitialized in this function" } */
-  return rc;
+  int rc;
+  return rc;  /* { dg-warning "'rc' is used uninitialized in this function" } */
   *&rc = 0;
 }
 

gcc/testsuite/gfortran.dg/pr25923.f90

@@ -10,7 +10,7 @@ implicit none
 
 contains
 
-  function baz(arg) result(res) ! { dg-warning "res.yr' may be" "PR45505" { xfail ilp32 } }
+  function baz(arg) result(res) ! { dg-bogus "res.yr' may be" "PR45505" { xfail ilp32 } }
     type(bar), intent(in) :: arg
     type(bar) :: res
     logical, external:: some_func
@@ -19,7 +19,7 @@ contains
     else
       res = arg
     end if
-  end function baz ! { dg-bogus "res.yr' may be" "PR45505" { xfail ilp32 } }
+  end function baz ! { dg-warning "res.yr' may be" "PR45505" { xfail ilp32 } }
 
 end module foo
 

gcc/testsuite/gfortran.dg/pr39666-2.f90

@@ -2,7 +2,7 @@
 ! { dg-do compile }
 ! { dg-options "-O2 -Wuninitialized" }
 
-FUNCTION f(n)	! { dg-warning "may be used uninitialized" }
+FUNCTION f(n)
   INTEGER, INTENT(in) :: n
   REAL                :: f
 
@@ -11,4 +11,4 @@ FUNCTION f(n)	! { dg-warning "may be used uninitialized" }
     CASE (0);   f =  0.0
     CASE (2:);  f =  1.0
   END SELECT
-END FUNCTION
+END FUNCTION	! { dg-warning "may be used uninitialized" }

gcc/testsuite/objc.dg/attributes/method-noreturn-1.m

@@ -18,11 +18,11 @@
 + (id) method1
 {
   return self;  /* { dg-warning "function declared .noreturn. has a .return. statement" } */
-}               /* { dg-warning ".noreturn. function does return" } */
+}               /* { dg-warning ".noreturn. function does return" "" { target *-*-* } 20 } */
 - (id) method2
 {
   return self;  /* { dg-warning "function declared .noreturn. has a .return. statement" } */
-}               /* { dg-warning ".noreturn. function does return" } */
+}               /* { dg-warning ".noreturn. function does return" "" { target *-*-* } 24 } */
 + (id) method3
 {
   abort ();