Hi,

should all be rather straightforward but I spent quite a bit of time on the testsuite changes... Tested x86_64-linux, as usual.

Thanks, Paolo.

PS: at some point we should start talking about all the error, error_at, etc, which are *never* exercised by our testsuite. I'm coming to the conclusion that some should really go. Any general procedural suggestions?

///////////////////


/cp
2019-06-14  Paolo Carlini  <paolo.carl...@oracle.com>

        * decl.c (grokdeclarator): Use id_loc, typespec_loc, and
        locations[ds_storage_class] in a few additional places.

/testsuite
2019-06-14  Paolo Carlini  <paolo.carl...@oracle.com>

        * g++.dg/diagnostic/auto-storage-1.C: New.
        * g++.dg/diagnostic/no-type-1.C: Likewise.
        * g++.dg/diagnostic/no-type-2.C: Likewise.
        * g++.dg/diagnostic/top-level-auto-1.C: Likewise.
        * g++.dg/cpp0x/auto9.C: Test some locations too.
        * g++.dg/cpp1z/register1.C: Likewise.
        * g++.dg/cpp1z/register2.C: Likewise.
        * g++.dg/cpp1z/register3.C: Likewise.
        * g++.dg/other/error34.C: Likewise.
Index: cp/decl.c
===================================================================
--- cp/decl.c   (revision 272259)
+++ cp/decl.c   (working copy)
@@ -10797,13 +10797,14 @@ grokdeclarator (const cp_declarator *declarator,
       else if (in_system_header_at (input_location) || flag_ms_extensions)
        /* Allow it, sigh.  */;
       else if (! is_main)
-       permerror (input_location, "ISO C++ forbids declaration of %qs with no 
type", name);
+       permerror (id_loc, "ISO C++ forbids declaration of %qs with no type",
+                  name);
       else if (pedantic)
-       pedwarn (input_location, OPT_Wpedantic,
+       pedwarn (id_loc, OPT_Wpedantic,
                 "ISO C++ forbids declaration of %qs with no type", name);
       else
-       warning (OPT_Wreturn_type,
-                "ISO C++ forbids declaration of %qs with no type", name);
+       warning_at (id_loc, OPT_Wreturn_type,
+                   "ISO C++ forbids declaration of %qs with no type", name);
 
       if (type_was_error_mark_node && template_parm_flag)
        /* FIXME we should be able to propagate the error_mark_node as is
@@ -11232,7 +11233,8 @@ grokdeclarator (const cp_declarator *declarator,
   else if (toplevel_bindings_p ())
     {
       if (storage_class == sc_auto)
-       error ("top-level declaration of %qs specifies %<auto%>", name);
+       error_at (declspecs->locations[ds_storage_class],
+                 "top-level declaration of %qs specifies %<auto%>", name);
     }
   else if (thread_p
           && storage_class != sc_extern
@@ -12323,9 +12325,10 @@ grokdeclarator (const cp_declarator *declarator,
          && !(cxx_dialect >= cxx17 && template_parm_flag))
        {
          if (cxx_dialect >= cxx14)
-           error ("%<auto%> parameter not permitted in this context");
+           error_at (typespec_loc,
+                     "%<auto%> parameter not permitted in this context");
          else
-           error ("parameter declared %<auto%>");
+           error_at (typespec_loc, "parameter declared %<auto%>");
          type = error_mark_node;
        }
 
@@ -12746,9 +12749,12 @@ grokdeclarator (const cp_declarator *declarator,
        // FIXME:gcc_assert (original_name == dname);
 
        if (storage_class == sc_auto)
-         error ("storage class %<auto%> invalid for function %qs", name);
+         error_at (declspecs->locations[ds_storage_class],
+                   "storage class %<auto%> invalid for function %qs", name);
        else if (storage_class == sc_register)
-         error ("storage class %<register%> invalid for function %qs", name);
+         error_at (declspecs->locations[ds_storage_class],
+                   "storage class %<register%> invalid for function %qs",
+                   name);
        else if (thread_p)
          {
            if (declspecs->gnu_thread_keyword_p)
Index: testsuite/g++.dg/cpp0x/auto9.C
===================================================================
--- testsuite/g++.dg/cpp0x/auto9.C      (revision 272259)
+++ testsuite/g++.dg/cpp0x/auto9.C      (working copy)
@@ -78,10 +78,10 @@ enum struct D : auto * { FF = 0 };          // { dg-error
 void
 bar ()
 {
-  try { } catch (auto i) { }                   // { dg-error "parameter" }
-  try { } catch (auto) { }                     // { dg-error "parameter" }
-  try { } catch (auto *i) { }                  // { dg-error "parameter" }
-  try { } catch (auto *) { }                   // { dg-error "parameter" }
+  try { } catch (auto i) { }                   // { dg-error "18:parameter" }
+  try { } catch (auto) { }                     // { dg-error "18:parameter" }
+  try { } catch (auto *i) { }                  // { dg-error "18:parameter" }
+  try { } catch (auto *) { }                   // { dg-error "18:parameter" }
 }
 
 void
@@ -111,7 +111,7 @@ badthrow2 () throw (auto &)                 // { dg-error 
"inval
 {                                              // { dg-error "dynamic 
exception specification" "" { target c++17 } .-1 }
 }                                              // { dg-warning "deprecated" "" 
{ target { ! c++17 } } .-2 }
 
-template <auto V = 4> struct G {};             // { dg-error "auto" "" { 
target { ! c++17 } } }
+template <auto V = 4> struct G {};             // { dg-error "11:parameter" "" 
{ target { ! c++17 } } }
 
 template <typename T> struct H { H (); ~H (); };
 H<auto> h;                                     // { dg-error 
"invalid|initializer" }
Index: testsuite/g++.dg/cpp1z/register1.C
===================================================================
--- testsuite/g++.dg/cpp1z/register1.C  (revision 272259)
+++ testsuite/g++.dg/cpp1z/register1.C  (working copy)
@@ -10,7 +10,7 @@
 register int a __asm (REG1);   // { dg-bogus "ISO C\\+\\+17 does not allow 
'register' storage class specifier" "" { target c++17 } }
 #endif
 register int b;                        // { dg-error "ISO C\\+\\+17 does not 
allow 'register' storage class specifier" "" { target c++17 } }
-register int c ();             // { dg-error "storage class 'register' invalid 
for function" }
+register int c ();             // { dg-error "1:storage class 'register' 
invalid for function" }
 int foo (register int d)       // { dg-error "ISO C\\+\\+17 does not allow 
'register' storage class specifier" "" { target c++17 } }
 {
   return d;
Index: testsuite/g++.dg/cpp1z/register2.C
===================================================================
--- testsuite/g++.dg/cpp1z/register2.C  (revision 272259)
+++ testsuite/g++.dg/cpp1z/register2.C  (working copy)
@@ -11,7 +11,7 @@
 register int a __asm (REG1);   // { dg-bogus "ISO C\\+\\+17 does not allow 
'register' storage class specifier" "" { target c++17 } }
 #endif
 register int b;                        // { dg-bogus "ISO C\\+\\+17 does not 
allow 'register' storage class specifier" "" { target c++17 } }
-register int c ();             // { dg-error "storage class 'register' invalid 
for function" }
+register int c ();             // { dg-error "1:storage class 'register' 
invalid for function" }
 int foo (register int d)       // { dg-bogus "ISO C\\+\\+17 does not allow 
'register' storage class specifier" "" { target c++17 } }
 {
   return d;
Index: testsuite/g++.dg/cpp1z/register3.C
===================================================================
--- testsuite/g++.dg/cpp1z/register3.C  (revision 272259)
+++ testsuite/g++.dg/cpp1z/register3.C  (working copy)
@@ -11,7 +11,7 @@
 register int a __asm (REG1);   // { dg-bogus "'register' storage class 
specifier used" }
 #endif
 register int b;                        // { dg-warning "'register' storage 
class specifier used" }
-register int c ();             // { dg-error "storage class 'register' invalid 
for function" }
+register int c ();             // { dg-error "1:storage class 'register' 
invalid for function" }
 int foo (register int d)       // { dg-warning "'register' storage class 
specifier used" }
 {
   return d;
Index: testsuite/g++.dg/diagnostic/auto-storage-1.C
===================================================================
--- testsuite/g++.dg/diagnostic/auto-storage-1.C        (nonexistent)
+++ testsuite/g++.dg/diagnostic/auto-storage-1.C        (working copy)
@@ -0,0 +1,6 @@
+// { dg-do compile { target c++98_only } }
+
+void foo()
+{
+  auto void bar();  // { dg-error "3:storage class .auto. invalid for 
function" }
+}
Index: testsuite/g++.dg/diagnostic/no-type-1.C
===================================================================
--- testsuite/g++.dg/diagnostic/no-type-1.C     (nonexistent)
+++ testsuite/g++.dg/diagnostic/no-type-1.C     (working copy)
@@ -0,0 +1 @@
+main() {}  // { dg-error "1:ISO C\\+\\+ forbids declaration" }
Index: testsuite/g++.dg/diagnostic/no-type-2.C
===================================================================
--- testsuite/g++.dg/diagnostic/no-type-2.C     (nonexistent)
+++ testsuite/g++.dg/diagnostic/no-type-2.C     (working copy)
@@ -0,0 +1,3 @@
+// { dg-options "-w" }
+
+foo() {}  // { dg-error "1:ISO C\\+\\+ forbids declaration" }
Index: testsuite/g++.dg/diagnostic/top-level-auto-1.C
===================================================================
--- testsuite/g++.dg/diagnostic/top-level-auto-1.C      (nonexistent)
+++ testsuite/g++.dg/diagnostic/top-level-auto-1.C      (working copy)
@@ -0,0 +1,3 @@
+// { dg-do compile { target c++98_only } }
+
+auto int i;  // { dg-error "1:top-level declaration of .i. specifies .auto." }
Index: testsuite/g++.dg/other/error34.C
===================================================================
--- testsuite/g++.dg/other/error34.C    (revision 272259)
+++ testsuite/g++.dg/other/error34.C    (working copy)
@@ -2,5 +2,5 @@
 // { dg-do compile }
 // { dg-options "" }
 
-S () : str(__PRETTY_FUNCTION__) { return S(); }        // { dg-error "forbids 
declaration" "decl" }
+S () : str(__PRETTY_FUNCTION__) { return S(); }        // { dg-error "1:ISO 
C\\+\\+ forbids declaration" "decl" }
 // { dg-error "only constructors" "constructor" { target *-*-* } .-1 }

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