summaryrefslogtreecommitdiff
path: root/gcc/testsuite/c-c++-common/pr41935.c
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/c-c++-common/pr41935.c
downloadcbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2
cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository.
Diffstat (limited to 'gcc/testsuite/c-c++-common/pr41935.c')
-rw-r--r--gcc/testsuite/c-c++-common/pr41935.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/pr41935.c b/gcc/testsuite/c-c++-common/pr41935.c
new file mode 100644
index 000000000..3279e7559
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/pr41935.c
@@ -0,0 +1,70 @@
+/* { dg-options "-Warray-bounds" } */
+/* { dg-do compile } */
+
+struct A
+{
+ int i;
+ char p[1];
+};
+
+struct B
+{
+ struct A a;
+ int i;
+};
+
+struct C
+{
+ int i;
+ struct A a;
+};
+
+union D
+{
+ char p[1];
+ struct A a;
+ struct B b;
+ struct C c;
+};
+
+struct E
+{
+ int i;
+ union D d;
+};
+
+struct F
+{
+ union D d;
+ int i;
+};
+
+union G
+{
+ int i;
+ union D d;
+};
+
+void
+f0 ()
+{
+ __builtin_offsetof (struct A, p[4]); /* OK */
+ __builtin_offsetof (struct B, a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (struct C, a.p[4]); /* OK */
+ __builtin_offsetof (union D, p[4]); /* OK */
+ __builtin_offsetof (union D, a.p[4]); /* OK */
+ __builtin_offsetof (union D, b.a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (union D, c.a.p[4]); /* OK */
+ __builtin_offsetof (struct E, d.p[4]); /* OK */
+ __builtin_offsetof (struct E, d.a.p[4]); /* OK */
+ __builtin_offsetof (struct E, d.b.a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (struct E, d.c.a.p[4]); /* OK */
+ __builtin_offsetof (struct F, d.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (struct F, d.a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (struct F, d.b.a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (struct F, d.c.a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (union G, d.p[4]); /* OK */
+ __builtin_offsetof (union G, d.a.p[4]); /* OK */
+ __builtin_offsetof (union G, d.b.a.p[4]); /* { dg-warning "greater than size" } */
+ __builtin_offsetof (union G, d.c.a.p[4]); /* OK */
+}