Commit 595163db by Eric Botcazou Committed by Eric Botcazou

md.texi (constraints): Mention that it is useless when the two alternatives are strictly identical.

	* doc/md.texi (constraints) <% modifier>: Mention that it is
	useless when the two alternatives are strictly identical.

From-SVN: r90598
parent 4e36f613
2004-11-13 Eric Botcazou <ebotcazou@libertysurf.fr>
* doc/md.texi (constraints) <% modifier>: Mention that it is
useless when the two alternatives are strictly identical.
2004-11-13 Richard Henderson <rth@redhat.com> 2004-11-13 Richard Henderson <rth@redhat.com>
* expmed.c (extract_split_bit_field): Temporarily disable call to * expmed.c (extract_split_bit_field): Temporarily disable call to
......
...@@ -1550,7 +1550,9 @@ instruction is defined: ...@@ -1550,7 +1550,9 @@ instruction is defined:
@end smallexample @end smallexample
@end ifset @end ifset
GCC can only handle one commutative pair in an asm; if you use more, 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 @cindex @samp{#} in constraint
@item # @item #
......
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