From d5a86490962fdd550574eb0d4f5f632883e40d1c Mon Sep 17 00:00:00 2001 From: Dimitar Dimitrov Date: Thu, 9 Jul 2020 22:04:38 +0300 Subject: [PATCH] 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 --- .../c-c++-common/Waddress-of-packed-member-2.c | 1 + gcc/testsuite/c-c++-common/Wattributes.c | 2 +- gcc/testsuite/c-c++-common/attr-copy.c | 1 + .../c-c++-common/builtin-has-attribute-4.c | 2 +- gcc/testsuite/c-c++-common/pr51628-29.c | 1 + gcc/testsuite/c-c++-common/pr51628-30.c | 1 + gcc/testsuite/c-c++-common/pr51628-32.c | 1 + gcc/testsuite/gcc.dg/Wattributes-6.c | 2 +- gcc/testsuite/gcc.dg/attr-copy-4.c | 3 ++- gcc/testsuite/gcc.dg/attr-copy-8.c | 25 ++++++++++++++++++++++ 10 files changed, 35 insertions(+), 4 deletions(-) diff --git a/gcc/testsuite/c-c++-common/Waddress-of-packed-member-2.c b/gcc/testsuite/c-c++-common/Waddress-of-packed-member-2.c index 5dbcb89..802dd81 100644 --- a/gcc/testsuite/c-c++-common/Waddress-of-packed-member-2.c +++ b/gcc/testsuite/c-c++-common/Waddress-of-packed-member-2.c @@ -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; }; diff --git a/gcc/testsuite/c-c++-common/Wattributes.c b/gcc/testsuite/c-c++-common/Wattributes.c index 3f176a0..4ad9044 100644 --- a/gcc/testsuite/c-c++-common/Wattributes.c +++ b/gcc/testsuite/c-c++-common/Wattributes.c @@ -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)) diff --git a/gcc/testsuite/c-c++-common/attr-copy.c b/gcc/testsuite/c-c++-common/attr-copy.c index 284088a..f0db0fd 100644 --- a/gcc/testsuite/c-c++-common/attr-copy.c +++ b/gcc/testsuite/c-c++-common/attr-copy.c @@ -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. */ diff --git a/gcc/testsuite/c-c++-common/builtin-has-attribute-4.c b/gcc/testsuite/c-c++-common/builtin-has-attribute-4.c index ec31277..3a960aa 100644 --- a/gcc/testsuite/c-c++-common/builtin-has-attribute-4.c +++ b/gcc/testsuite/c-c++-common/builtin-has-attribute-4.c @@ -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) diff --git a/gcc/testsuite/c-c++-common/pr51628-29.c b/gcc/testsuite/c-c++-common/pr51628-29.c index a3e7745..1ad9a7d2 100644 --- a/gcc/testsuite/c-c++-common/pr51628-29.c +++ b/gcc/testsuite/c-c++-common/pr51628-29.c @@ -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; diff --git a/gcc/testsuite/c-c++-common/pr51628-30.c b/gcc/testsuite/c-c++-common/pr51628-30.c index b31e73e..387fc71 100644 --- a/gcc/testsuite/c-c++-common/pr51628-30.c +++ b/gcc/testsuite/c-c++-common/pr51628-30.c @@ -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; diff --git a/gcc/testsuite/c-c++-common/pr51628-32.c b/gcc/testsuite/c-c++-common/pr51628-32.c index 52f5e54..908c0b8 100644 --- a/gcc/testsuite/c-c++-common/pr51628-32.c +++ b/gcc/testsuite/c-c++-common/pr51628-32.c @@ -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; diff --git a/gcc/testsuite/gcc.dg/Wattributes-6.c b/gcc/testsuite/gcc.dg/Wattributes-6.c index d3dd22d..4ba59bf 100644 --- a/gcc/testsuite/gcc.dg/Wattributes-6.c +++ b/gcc/testsuite/gcc.dg/Wattributes-6.c @@ -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)) diff --git a/gcc/testsuite/gcc.dg/attr-copy-4.c b/gcc/testsuite/gcc.dg/attr-copy-4.c index 1350a35..796724b 100644 --- a/gcc/testsuite/gcc.dg/attr-copy-4.c +++ b/gcc/testsuite/gcc.dg/attr-copy-4.c @@ -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); diff --git a/gcc/testsuite/gcc.dg/attr-copy-8.c b/gcc/testsuite/gcc.dg/attr-copy-8.c index c75d9e5..7195f6b 100644 --- a/gcc/testsuite/gcc.dg/attr-copy-8.c +++ b/gcc/testsuite/gcc.dg/attr-copy-8.c @@ -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; -- 2.7.4