tweak comment

From-SVN: r17093

diff --git a/gcc/except.c b/gcc/except.c
index dbba31b445bec79282792a5cfe419050b37dcb0b..c0db69f87eb3f538a91d81b0818a41edf18d8874 100644 (file)
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -1669,7 +1669,10 @@ emit_eh_context ()
            
            start_sequence ();
 
-           /* If this is the first use insn, emit the call here. */
+           /* If this is the first use insn, emit the call here.  This
+              will always be at the top of our function, because if
+              expand_inline_function notices a REG_EH_CONTEXT note, it
+              adds a use insn to this function as well.  */
            if (ehc == 0)
              ehc = call_get_eh_context ();