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

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

From-SVN: r90598
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Eric Botcazou 2004-11-13 23:28:46 +01:00 committed by Eric Botcazou
parent 4e36f613a3
commit 595163db43
2 changed files with 8 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
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>
* expmed.c (extract_split_bit_field): Temporarily disable call to

4
gcc/doc/md.texi
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@ -1550,7 +1550,9 @@ 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 #