+= and sign extend problem

2 files changed, 19 insertions, 2 deletions

diff --git a/regress/usr.bin/pcc/ccom/Makefile b/regress/usr.bin/pcc/ccom/Makefile
index b40629c2b3e..22768fca4a6 100644
--- a/regress/usr.bin/pcc/ccom/Makefile
+++ b/regress/usr.bin/pcc/ccom/Makefile
@@ -1,8 +1,10 @@
-# $OpenBSD: Makefile,v 1.1 2007/10/07 18:12:43 otto Exp $
+# $OpenBSD: Makefile,v 1.2 2007/10/16 12:49:53 otto Exp $
 
 CC=/usr/local/bin/cc
 
-REGRESS_TARGETS=const001 \
+REGRESS_TARGETS=\
+	arith001 \
+	const001 \
 	darray001 \
 	enum001 \
 	init001 init004 \
diff --git a/regress/usr.bin/pcc/ccom/arith001.c b/regress/usr.bin/pcc/ccom/arith001.c
new file mode 100644
index 00000000000..d6163248b46
--- /dev/null
+++ b/regress/usr.bin/pcc/ccom/arith001.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+main()
+{
+         long long foo = 10;
+         unsigned int d = 0xffffffffUL;
+
+         if (foo + d != 0x100000009LL)
+		return 1;
+
+         foo += d;
+         if (foo != 0x100000009LL)
+		return 1;
+	 return 0;
+}
+