demonstrates an error in ShrsLs lowering

[r20020]

diff --git a/ir/be/test/fehler113.c b/ir/be/test/fehler113.c
new file mode 100644 (file)
index 0000000..82d2149
--- /dev/null
+++ b/ir/be/test/fehler113.c
@@ -0,0 +1,18 @@
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif
+
+#define ROL(a,b) (((a) << (b)) | ((a) >> ((sizeof (a) * CHAR_BIT) - (b))))
+#define ROL(a,b) (((a) << (b)) | ((a) >> ((sizeof (a) * CHAR_BIT) - (b))))
+
+/* This is NOT folded into a ROL, but demonstrates an error in old lowering */
+long long testLL(long long a) {
+       return ROL(a,3);
+}
+
+int main() {
+       int printf(const char *fmt, ...);
+
+       printf("%lld\n", testLL(1));
+       return 0;
+}