summaryrefslogtreecommitdiff
path: root/libmudflap/testsuite/libmudflap.c/fail33-frag.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 /libmudflap/testsuite/libmudflap.c/fail33-frag.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 'libmudflap/testsuite/libmudflap.c/fail33-frag.c')
-rw-r--r--libmudflap/testsuite/libmudflap.c/fail33-frag.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/libmudflap/testsuite/libmudflap.c/fail33-frag.c b/libmudflap/testsuite/libmudflap.c/fail33-frag.c
new file mode 100644
index 000000000..ac7c617a4
--- /dev/null
+++ b/libmudflap/testsuite/libmudflap.c/fail33-frag.c
@@ -0,0 +1,25 @@
+#include <stdlib.h>
+
+#define SIZE 16
+
+char b[SIZE];
+char a[SIZE];
+
+int main ()
+{
+ int i, j=0, k;
+ int a_before_b = (& a[0] < & b[0]);
+ /* Rather than iterating linearly, which would allow loop unrolling
+ and mapping to pointer manipulation, we traverse the "joined"
+ arrays in some random order. */
+ for (i=0; i<SIZE*2; i++)
+ {
+ k = rand() % (SIZE*2);
+ j += (a_before_b ? a[k] : b[k]);
+ }
+ return j;
+}
+/* { dg-output "mudflap violation 1.*" } */
+/* { dg-output "Nearby object.*" } */
+/* { dg-output "mudflap object.*\[ab\]" } */
+/* { dg-do run { xfail *-*-* } } */