aboutsummaryrefslogtreecommitdiff
path: root/gcc/doc/md.texi
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/doc/md.texi')
-rw-r--r--gcc/doc/md.texi4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index 785675ca805..dc7663c5519 100644
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -1257,7 +1257,9 @@ instruction is defined:
@end smallexample
@end ifset
GCC can only handle one commutative pair in an asm; if you use more,
-the compiler may fail.
+the compiler may fail. Note that you need not use the modifier if
+the two alternatives are strictly identical; this would only waste
+time in the reload pass.
@cindex @samp{#} in constraint
@item #