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re PR c/78285 (error on duplicate switch label where a note should be)

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PR c/78285
	* c-common.c (c_add_case_label): Turn error_at calls into inform.

	* gcc.dg/switch-5.c: Turn several dg-errors into dg-messages.
	* g++.dg/ext/case-range2.C: Likewise.

From-SVN: r242532
This commit is contained in:
Marek Polacek 2016-11-17 01:23:19 +00:00 • committed by Marek Polacek
parent c10e3d7f2a
commit 0d939c9575
5 changed files with 23 additions and 12 deletions
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5
gcc/c-family/ChangeLog
View file

@ -1,3 +1,8 @@
2016-11-16 Marek Polacek <polacek@redhat.com>
PR c/78285
* c-common.c (c_add_case_label): Turn error_at calls into inform.
2016-11-14 Jakub Jelinek <jakub@redhat.com>
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_structured_bindings.

6
gcc/c-family/c-common.c
View file

@ -4968,18 +4968,18 @@ c_add_case_label (location_t loc, splay_tree cases, tree cond, tree orig_type,
if (high_value)
{
error_at (loc, "duplicate (or overlapping) case value");
error_at (DECL_SOURCE_LOCATION (duplicate),
inform (DECL_SOURCE_LOCATION (duplicate),
"this is the first entry overlapping that value");
}
else if (low_value)
{
error_at (loc, "duplicate case value") ;
error_at (DECL_SOURCE_LOCATION (duplicate), "previously used here");
inform (DECL_SOURCE_LOCATION (duplicate), "previously used here");
}
else
{
error_at (loc, "multiple default labels in one switch");
error_at (DECL_SOURCE_LOCATION (duplicate),
inform (DECL_SOURCE_LOCATION (duplicate),
"this is the first default label");
}
goto error_out;

6
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,9 @@
2016-11-16 Marek Polacek <polacek@redhat.com>
PR c/78285
* gcc.dg/switch-5.c: Turn several dg-errors into dg-messages.
* g++.dg/ext/case-range2.C: Likewise.
2016-11-16 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/58001

4
gcc/testsuite/g++.dg/ext/case-range2.C
View file

@ -11,7 +11,7 @@ T f2 (T i)
{
switch (i)
{
case low ... high : return i + 1; // { dg-error "previously" }
case low ... high : return i + 1; // { dg-message "previously" }
case 5 : return i + 2; // { dg-error "duplicate" }
default : return 0;
}
@ -20,7 +20,7 @@ T f2 (T i)
int f (int i)
{
switch (i) {
case 1 ... 10: return i + 1; // { dg-error "first entry" }
case 1 ... 10: return i + 1; // { dg-message "first entry" }
case 3 ... 5 : return i + 3; // { dg-error "duplicate" }
default: return f2 (i); // { dg-message "required" }
}

10
gcc/testsuite/gcc.dg/switch-5.c
View file

@ -40,13 +40,13 @@ f (int a, double d, void *p)
switch (a)
{
case 0:
default: /* { dg-error "this is the first default label" } */
default: /* { dg-message "this is the first default label" } */
case 1:
default: ; /* { dg-error "multiple default labels in one switch" } */
}
switch (a)
{
case 0: /* { dg-error "previously used here" } */
case 0: /* { dg-message "previously used here" } */
case 1:
case 0: ; /* { dg-error "duplicate case value" } */
}
@ -60,11 +60,11 @@ f (int a, double d, void *p)
}
switch (a)
{
case 0: /* { dg-error "this is the first entry overlapping that value" } */
case 0: /* { dg-message "this is the first entry overlapping that value" } */
case -1 ... 1: /* { dg-error "duplicate \\(or overlapping\\) case value" } */
case 2 ... 3: /* { dg-error "previously used here" } */
case 2 ... 3: /* { dg-message "previously used here" } */
case 2: /* { dg-error "duplicate case value" } */
case 4 ... 7: /* { dg-error "this is the first entry overlapping that value" } */
case 4 ... 7: /* { dg-message "this is the first entry overlapping that value" } */
case 6 ... 9: ; /* { dg-error "duplicate \\(or overlapping\\) case value" } */
}
switch (a)