(CC_NO_OVERFLOW): Add comment clarifying usage.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@11657 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/conditions.h b/gcc/conditions.h
index c92226c..80d6047 100644 (file)
--- a/gcc/conditions.h
+++ b/gcc/conditions.h
@@ -85,6 +85,8 @@ extern CC_STATUS cc_status;
 
 /* This bit means that the current setting of the overflow flag
    is bogus and conditional jumps should pretend there is no overflow.  */
+/* ??? Note that for most targets this macro is misnamed as it applies
+   to the carry flag, not the overflow flag.  */
 #define CC_NO_OVERFLOW 010
 
 /* This bit means that what ought to be in the Z bit