test float calls whose return is unused

diff --git a/ir/be/test/fcall.c b/ir/be/test/fcall.c
index 8efec74..1657673 100644 (file)
--- a/ir/be/test/fcall.c
+++ b/ir/be/test/fcall.c
@@ -4,6 +4,8 @@ float a;
 
 int main()
 {
+       /* tests for problems in x87 simulator when results of a call are not
+        * used */
        float b = a;
        sqrt(a);
        printf("%f\n", b);