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rtl.texi (Vector Operations): Clarify vec_select result mode. 

2009-12-17  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* doc/rtl.texi (Vector Operations): Clarify vec_select result mode.

From-SVN: r155320
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Sandra Loosemore 2009-12-17 10:43:23 -05:00 committed by Sandra Loosemore
parent 0c23e1be87
commit a0274eae64
2 changed files with 9 additions and 2 deletions
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@ -1,3 +1,7 @@
2009-12-17 Sandra Loosemore <sandra@codesourcery.com>
* doc/rtl.texi (Vector Operations): Clarify vec_select result mode.
2009-12-17 Julian Brown <julian@codesourcery.com>
* config/arm/bpabi-v6m.S (test_div_by_zero): New macro.

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gcc/doc/rtl.texi
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@ -2614,9 +2614,12 @@ a set bit indicates it is taken from @var{vec1}.
@findex vec_select
@item (vec_select:@var{m} @var{vec1} @var{selection})
This describes an operation that selects parts of a vector. @var{vec1} is
the source vector, @var{selection} is a @code{parallel} that contains a
the source vector, and @var{selection} is a @code{parallel} that contains a
@code{const_int} for each of the subparts of the result vector, giving the
number of the source subpart that should be stored into it.
number of the source subpart that should be stored into it.
The result mode @var{m} is either the submode for a single element of
@var{vec1} (if only one subpart is selected), or another vector mode
with that element submode (if multiple subparts are selected).
@findex vec_concat
@item (vec_concat:@var{m} @var{vec1} @var{vec2})