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testsute: Add expected warning for packed attribute 

Targets which pack structures by default get warnings for packed structure
attributes. This is expected, so add markers in the test cases.

gcc/testsuite/ChangeLog:

	* c-c++-common/Waddress-of-packed-member-2.c: Add dg-warning for
	ignored attribute if target is default_packed.
	* c-c++-common/Wattributes.c: Ditto.
	* c-c++-common/attr-copy.c: Ditto.
	* c-c++-common/builtin-has-attribute-4.c: Ditto.
	* c-c++-common/pr51628-29.c: Ditto.
	* c-c++-common/pr51628-30.c: Ditto.
	* c-c++-common/pr51628-32.c: Ditto.
	* gcc.dg/Wattributes-6.c: Ditto.
	* gcc.dg/attr-copy-4.c: Ditto.
	* gcc.dg/attr-copy-8.c: Ditto.

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
This commit is contained in:
Dimitar Dimitrov 2020-07-09 22:04:38 +03:00
parent 6741411b03
commit d5a8649096
10 changed files with 35 additions and 4 deletions
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1
gcc/testsuite/c-c++-common/Waddress-of-packed-member-2.c
View File

@ -15,6 +15,7 @@ struct s {
struct t {
char c;
struct r p __attribute__((packed));
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
struct r u;
};

2
gcc/testsuite/c-c++-common/Wattributes.c
View File

@ -21,7 +21,7 @@ PackedAligned { int i; };
struct ATTR ((aligned (2)))
AlignedMemberPacked
{
int ATTR ((packed)) i;
int ATTR ((packed)) i; // { dg-warning "attribute ignored" "" { target default_packed } }
};
struct ATTR ((packed))

1
gcc/testsuite/c-c++-common/attr-copy.c
View File

@ -21,6 +21,7 @@ struct C
{
char c;
ATTR (copy ((bar (), ((struct A *)(0))[0]))) int i;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
};
/* Verify the attribute has been copied. */

2
gcc/testsuite/c-c++-common/builtin-has-attribute-4.c
View File

@ -130,7 +130,7 @@ struct PackedMember
char c;
short s;
int i;
ATTR (packed) int a[2];
ATTR (packed) int a[2]; /* { dg-warning "attribute ignored" "" { target default_packed } } */
} gpak[2];
void test_packed (struct PackedMember *p)

1
gcc/testsuite/c-c++-common/pr51628-29.c
View File

@ -5,6 +5,7 @@
struct A { int i; };
struct B { struct A a; };
struct C { struct B b __attribute__ ((packed)); };
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
extern struct C *p;

1
gcc/testsuite/c-c++-common/pr51628-30.c
View File

@ -5,6 +5,7 @@
struct A { __complex int i; };
struct B { struct A a; };
struct C { struct B b __attribute__ ((packed)); };
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
extern struct C *p;

1
gcc/testsuite/c-c++-common/pr51628-32.c
View File

@ -11,6 +11,7 @@ struct B
{
char c;
__attribute ((packed)) struct A ar[4];
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
};
struct B b;

2
gcc/testsuite/gcc.dg/Wattributes-6.c
View File

@ -21,7 +21,7 @@ PackedAligned { int i; };
struct ATTR ((aligned (2)))
AlignedMemberPacked
{
int ATTR ((packed)) i;
int ATTR ((packed)) i; // { dg-warning "attribute ignored" "" { target default_packed } }
};
struct ATTR ((packed))

3
gcc/testsuite/gcc.dg/attr-copy-4.c
View File

@ -21,7 +21,8 @@ Assert (__alignof (struct PackedA) == __alignof (struct PackedB));
struct PackedMember
{
char c;
ATTR ((copy ((struct PackedB*)0))) double packed_mem;
ATTR ((copy ((struct PackedB*)0))) double packed_mem;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
};
Assert (__alignof (struct PackedMember) == 1);

25
gcc/testsuite/gcc.dg/attr-copy-8.c
View File

@ -21,41 +21,66 @@ extern B *pb;
typedef struct C
{
ATTR (copy ((struct A *)0)) short m_pa_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy ((struct A *)(1, 0))) int m_pa_1_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy ((struct A *)(0, 1))) long m_pa_0_1;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*(struct A *)0)) short m_xpa_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*(struct A *)(1, 0))) int m_xpa_1_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*(struct A *)(0, 1))) long m_xpa_0_1;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (((struct A *)0)[0])) short m_arpa_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (((struct A *)(1, 0))[0])) int m_arpa_1_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (((struct A *)(0, 1))[0])) long m_arpa_0_1;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
/* Also exercise COMPONENT_REF, ARRAY_REF, and INDIRECT_REF. */
ATTR (copy (a)) short m_ra;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (b.a)) int m_rb_a;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (b.pa)) long m_rb_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (&a)) short m_ara;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (&b.a)) int m_arb_a;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*b.pa)) long m_xb_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (b.pa[0])) long m_arb_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*pa)) short m_xpa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (pa[0])) short m_arpa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (ab[0].a)) int m_arab_a;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (ab[1].pa)) long m_arab_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*ab[2].pa)) int m_xarab_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (ab[3].pa->bf)) unsigned int m_arab_pa_bf: 1;
ATTR (copy (pb->a)) int m_pb_a;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (pb->pa)) long m_pb_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (*pb->pa)) int m_xpb_pa;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
ATTR (copy (pb->pa->bf)) unsigned int m_pb_pa_bf: 1;
ATTR (aligned (4), copy ((struct A *)(0))) short m_a4_pa_0;
/* { dg-warning "attribute ignored" "" { target default_packed } .-1 } */
} C;