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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/nestfunc-4.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/nestfunc-4.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/nestfunc-4.c b/gcc/testsuite/gcc.c-torture/execute/nestfunc-4.c
new file mode 100644
index 000000000..e028166b6
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/nestfunc-4.c
@@ -0,0 +1,37 @@
+/* Origin: hp@bitrange.com
+ Test that return values come out right from a 1000-level call chain to
+ functions without parameters that each need at least one "long"
+ preserved. Exposed problems related to the MMIX port. */
+
+long level = 0;
+extern long foo (void);
+extern long bar (void);
+
+#ifdef STACK_SIZE
+#define DEPTH ((STACK_SIZE) / 512 + 1)
+#else
+#define DEPTH 500
+#endif
+
+int
+main (void)
+{
+ if (foo () == -42)
+ exit (0);
+
+ abort ();
+}
+
+long
+foo (void)
+{
+ long tmp = ++level;
+ return bar () + tmp;
+}
+
+long
+bar (void)
+{
+ long tmp = level;
+ return tmp > DEPTH - 1 ? -42 - tmp : foo () - tmp;
+}