* Re: question about section 10.12
[not found] <5105CE31.7040307@naturalbridge.com>
@ 2013-01-28 22:14 ` Hans-Peter Nilsson
2013-02-21 16:43 ` vec_concat, vec_duplicate doc updated (was: Re: question about section 10.12) Hans-Peter Nilsson
0 siblings, 1 reply; 2+ messages in thread
From: Hans-Peter Nilsson @ 2013-01-28 22:14 UTC (permalink / raw)
To: zadeck; +Cc: gcc-patches, rdsandiford, marc.glisse
> From: Kenneth Zadeck <zadeck@naturalbridge.com>
> Date: Mon, 28 Jan 2013 02:02:41 +0100
> this looks good to me. does your patch also address the vec_concat
> issue that marc raised?
You mean the issue being "same thing there"? I can confirm that
(I've stumbled upon) the same issue being there (i.e. similarly
applies to scalars). But nope, there's no cross-reference, so
the effective wording needs to be added there too. I also
noticed the parameter/s misleadingly being keyed to "vec" and
fill-paragraphed the paragraph. Something like this seems
obvious:
(Oops, noticed gcc@ was in CC, changing to gcc-patches@.)
* doc/rtl.texi (vec_concat, vec_duplicate): Mention that
scalars are valid operands.
Index: doc/rtl.texi
===================================================================
--- doc/rtl.texi (revision 195514)
+++ doc/rtl.texi (working copy)
@@ -2627,17 +2627,18 @@ The result mode @var{m} is either the su
with that element submode (if multiple subparts are selected).
@findex vec_concat
-@item (vec_concat:@var{m} @var{vec1} @var{vec2})
+@item (vec_concat:@var{m} @var{x1} @var{x2})
Describes a vector concat operation. The result is a concatenation of the
-vectors @var{vec1} and @var{vec2}; its length is the sum of the lengths of
-the two inputs.
+vectors or scalars @var{x1} and @var{x2}; its length is the sum of the
+lengths of the two inputs.
@findex vec_duplicate
-@item (vec_duplicate:@var{m} @var{vec})
-This operation converts a small vector into a larger one by duplicating the
-input values. The output vector mode must have the same submodes as the
-input vector mode, and the number of output parts must be an integer multiple
-of the number of input parts.
+@item (vec_duplicate:@var{m} @var{x})
+This operation converts a scalar into a vector or a small vector into a
+larger one by duplicating the input values. The output vector mode must have
+the same submodes as the input vector mode or the scalar modes, and the
+number of output parts must be an integer multiple of the number of input
+parts.
@end table
brgds, H-P
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