re PR fortran/67219 (Incorrect conversion warning)

2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/67219
	* arith.c (gfc_int2real):  Change gfc_warning_now
	to gfc_warning.
	* primary.c (match_complex_constant):  If there
	is no comma, throw away any warning which might have
	been issued by gfc_int2real.

2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/67219
	* gfortran.dg/pr67219.f90:  New test.

From-SVN: r241689

gcc/fortran/ChangeLog

+2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/67219
+	* arith.c (gfc_int2real):  Change gfc_warning_now
+	to gfc_warning.
+	* primary.c (match_complex_constant):  If there
+	is no comma, throw away any warning which might have
+	been issued by gfc_int2real.
+
 2016-10-28  Steven G. Kargl <kargl@gcc.gnu.org>
 
 	PR fortran/71891

gcc/fortran/arith.c

@@ -2072,11 +2072,11 @@ gfc_int2real (gfc_expr *src, int kind)
 
   if (warn_conversion
       && wprecision_int_real (src->value.integer, result->value.real))
-    gfc_warning_now (OPT_Wconversion, "Change of value in conversion "
-		     "from %qs to %qs at %L",
-		     gfc_typename (&src->ts),
-		     gfc_typename (&result->ts),
-		     &src->where);
+    gfc_warning (OPT_Wconversion, "Change of value in conversion "
+		 "from %qs to %qs at %L",
+		 gfc_typename (&src->ts),
+		 gfc_typename (&result->ts),
+		 &src->where);
 
   return result;
 }

gcc/fortran/primary.c

@@ -1353,6 +1353,10 @@ match_complex_constant (gfc_expr **result)
 
   if (gfc_match_char (',') == MATCH_NO)
     {
+      /* It is possible that gfc_int2real issued a warning when
+	 converting an integer to real.  Throw this away here.  */
+
+      gfc_clear_warning ();
       gfc_pop_error (&old_error);
       m = MATCH_NO;
       goto cleanup;

gcc/testsuite/ChangeLog

+2016-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/67219
+	* gfortran.dg/pr67219.f90:  New test.
+
 2016-10-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/77919

gcc/testsuite/gfortran.dg/pr67219.f90

+! { dg-do compile }
+! PR 67149 - this used to throw a spurious error.
+function foo(bar)
+   integer(8)             :: foo
+   integer(4), intent(in) :: bar
+   integer(4), parameter  :: huge_4 = huge(0_4)
+   foo = (huge_4 - int(bar,kind=8))
+end function