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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr21021.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr21021.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr21021.c
new file mode 100644
index 000000000..b74821630
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr21021.c
@@ -0,0 +1,19 @@
+/* PR tree-optimization/21021
+
+ The front end produces a comparison of mismatched types, namely an
+ integer and a pointer, causing VRP to compute TYPE_MAX_VALUE for a
+ pointer, which we cannot. */
+
+extern void *bar (void);
+
+int
+foo (unsigned int *p, unsigned int *q)
+{
+ const void *r = bar ();
+
+ if (r >= (const void *) *p
+ && r < (const void *) *q)
+ return 1;
+
+ return 0;
+}