gcc-7.3.0HEADgcc-7.3.0master

1 files changed, 13 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr47381-2.c b/gcc/testsuite/gcc.dg/pr47381-2.c
new file mode 100644
index 0000000000..8aa7be720a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr47381-2.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+typedef unsigned long ulg;
+long block_start;
+typedef unsigned char uch;
+extern uch window[];
+ unsigned strstart;
+ulg flush_block (char *buf, ulg stored_len, int eof);
+ulg deflate()
+{
+    return flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : (char*)((void *)0), (long)strstart - block_start, (1));
+}