Test for solaris cc bug with bit-fields. With "cc -fast" (or, rather, "cc -xalias_level=basic -xO3", implied by "cc -fast") solaris cc compiles incorrect code for bit-field accesses, notably not rechecking data after functions calls in some situations. Using "-xalias_level=any" resolves the problem (as well as using any non-bit-field type). Tested cc version is "Sun C 5.9 SunOS_i386 2007/05/03" (Sun Studio 12).

new file mode 100644
--- /dev/null
+++ b/t2.c
@@ -0,0 +1,32 @@
+
+#include "t.h"
+
+
+void (*x)(test *t);
+
+
+void
+dosomething(test *t)
+{
+    t->bit = 1;
+}
+
+void
+doinstall()
+{
+    x = dosomething;
+}
+
+int
+dotest(test *t)
+{
+    t->bit = 0;
+
+    x(t);
+
+    if (t->bit) {
+        return 0;
+    }
+
+    return 1;
+}