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.

1 files changed, 93 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/Warray-bounds.c b/gcc/testsuite/gcc.dg/Warray-bounds.c
new file mode 100644
index 000000000..aa154a7e7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Warray-bounds.c
@@ -0,0 +1,93 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -Warray-bounds" } */
+
+int a[10];
+
+static inline int n(void) {
+    __SIZE_TYPE__ strlen(const char *s);
+    return strlen("12345");
+}
+
+void g(int *p);
+void h(int p);
+
+int* f(void) {
+    int b[10];
+    int i;
+    struct {
+       int c[10];
+    } c;
+
+    a[-1] = 0;             /* { dg-warning "6:array subscript" } */
+    a[ 0] = 0;
+    a[ 1] = 0;
+
+
+    a[ 9] = 0;
+    a[10] = 0;             /* { dg-warning "6:array subscript" } */
+    a[11] = 0;             /* { dg-warning "6:array subscript" } */
+    a[2 * n() - 11] = 1;    /* { dg-warning "6:array subscript" } */
+    a[2 * n() - 10] = 1;
+    a[2 * n() -  1] = 1;
+    a[2 * n() -  0] = 1;    /* { dg-warning "6:array subscript" } */
+
+    b[-1] = 0;             /* { dg-warning "6:array subscript" } */
+    b[ 0] = 0;
+    b[ 1] = 0;
+    b[ 9] = 0;
+    b[10] = 0;             /* { dg-warning "6:array subscript" } */
+    b[11] = 0;             /* { dg-warning "6:array subscript" } */
+    b[2 * n() - 11] = 1;    /* { dg-warning "6:array subscript" } */
+    b[2 * n() - 10] = 1;
+    b[2 * n() -  1] = 1;
+    b[2 * n() -  0] = 1;    /* { dg-warning "array subscript" } */
+
+    c.c[-1] = 0;           /* { dg-warning "8:array subscript" } */
+    c.c[ 0] = 0;
+    c.c[ 1] = 0;
+    c.c[ 9] = 0;
+    c.c[10] = 0;           /* { dg-warning "8:array subscript" } */
+    c.c[11] = 0;           /* { dg-warning "8:array subscript" } */
+    c.c[2 * n() - 11] = 1;  /* { dg-warning "8:array subscript" } */
+    c.c[2 * n() - 10] = 1;
+    c.c[2 * n() -  1] = 1;
+    c.c[2 * n() -  0] = 1;  /* { dg-warning "8:array subscript" } */
+
+    g(&a[8]);
+    g(&a[9]);
+    g(&a[10]);
+    g(&a[11]);             /* { dg-warning "array subscript" } */
+    g(&a[-30]+10);             /* { dg-warning "array subscript" } */
+    g(&a[-30]+30);
+
+    g(&b[10]);
+    g(&c.c[10]);
+    g(&b[11]);             /* { dg-warning "array subscript" } */
+    g(&c.c[11]);           /* { dg-warning "array subscript" } */
+
+    g(&a[0]);
+    g(&b[0]);
+    g(&c.c[0]);
+
+    g(&a[-1]);             /* { dg-warning "array subscript" } */
+    g(&b[-1]);             /* { dg-warning "array subscript" } */ 
+    h(sizeof a[-1]);
+    h(sizeof a[10]);
+    h(sizeof b[-1]);
+    h(sizeof b[10]);
+    h(sizeof c.c[-1]);
+    h(sizeof c.c[10]);
+
+    if (10 < 10)
+       a[10] = 0;
+    if (10 < 10)
+       b[10] = 0;
+    if (-1 >= 0)
+       c.c[-1] = 0;
+
+    for (i = 20; i < 30; ++i)
+             a[i] = 1;       /* { dg-warning "15:array subscript" } */
+
+    return a;
+}
+