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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/frame-address.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/frame-address.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/frame-address.c b/gcc/testsuite/gcc.c-torture/execute/frame-address.c
new file mode 100644
index 000000000..109c2b229
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/frame-address.c
@@ -0,0 +1,44 @@
+int check_fa_work (const char *, const char *) __attribute__((noinline));
+int check_fa_mid (const char *) __attribute__((noinline));
+int check_fa (char *) __attribute__((noinline));
+int how_much (void) __attribute__((noinline));
+
+int check_fa_work (const char *c, const char *f)
+{
+ const char d = 0;
+
+ if (c >= &d)
+ return c >= f && f >= &d;
+ else
+ return c <= f && f <= &d;
+}
+
+int check_fa_mid (const char *c)
+{
+ const char *f = __builtin_frame_address (0);
+
+ /* Prevent a tail call to check_fa_work, eliding the current stack frame. */
+ return check_fa_work (c, f) != 0;
+}
+
+int check_fa (char *unused)
+{
+ const char c = 0;
+
+ /* Prevent a tail call to check_fa_mid, eliding the current stack frame. */
+ return check_fa_mid (&c) != 0;
+}
+
+int how_much (void)
+{
+ return 8;
+}
+
+int main (void)
+{
+ char *unused = __builtin_alloca (how_much ());
+
+ if (!check_fa(unused))
+ abort();
+ return 0;
+}