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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/Warray-bounds.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Warray-bounds.c b/gcc-4.9/gcc/testsuite/gcc.dg/Warray-bounds.c
new file mode 100644
index 000000000..aa154a7e7
--- /dev/null
+++ b/gcc-4.9/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;
+}
+