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4.7-2014.04 release (documentation).
--- a/src/gcc/doc/extend.texi
+++ b/src/gcc/doc/extend.texi
@@ -8577,12 +8577,17 @@
are @code{long double}.
@end deftypefn
-@deftypefn {Built-in Function} int32_t __builtin_bswap32 (int32_t x)
+@deftypefn {Built-in Function} int16_t __builtin_bswap16 (int16_t x)
Returns @var{x} with the order of the bytes reversed; for example,
-@code{0xaabbccdd} becomes @code{0xddccbbaa}. Byte here always means
+@code{0xaabb} becomes @code{0xbbaa}. Byte here always means
exactly 8 bits.
@end deftypefn
+@deftypefn {Built-in Function} int32_t __builtin_bswap32 (int32_t x)
+Similar to @code{__builtin_bswap16}, except the argument and return types
+are 32-bit.
+@end deftypefn
+
@deftypefn {Built-in Function} int64_t __builtin_bswap64 (int64_t x)
Similar to @code{__builtin_bswap32}, except the argument and return types
are 64-bit.
@@ -13468,7 +13473,6 @@
double __builtin_recipdiv (double, double);
double __builtin_rsqrt (double);
long __builtin_bpermd (long, long);
-int __builtin_bswap16 (int);
@end smallexample
The @code{vec_rsqrt}, @code{__builtin_rsqrt}, and
--- a/src/gcc/doc/fragments.texi
+++ b/src/gcc/doc/fragments.texi
@@ -127,6 +127,29 @@
*mthumb/*mhard-float*
@end smallexample
+@findex MULTILIB_REQUIRED
+@item MULTILIB_REQUIRED
+Sometimes when there are only a few combinations are required, it would
+be a big effort to come up with a @code{MULTILIB_EXCEPTIONS} list to
+cover all undesired ones. In such a case, just listing all the required
+combinations in @code{MULTILIB_REQUIRED} would be more straightforward.
+
+The way to specify the entries in @code{MULTILIB_REQUIRED} is same with
+the way used for @code{MULTILIB_EXCEPTIONS}, only this time what are
+required will be specified. Suppose there are multiple sets of
+@code{MULTILIB_OPTIONS} and only two combinations are required, one
+for ARMv7-M and one for ARMv7-R with hard floating-point ABI and FPU, the
+@code{MULTILIB_REQUIRED} can be set to:
+@smallexample
+@code{MULTILIB_REQUIRED} = mthumb/march=armv7-m
+@code{MULTILIB_REQUIRED} += march=armv7-r/mfloat-abi=hard/mfpu=vfpv3-d16
+@end smallexample
+
+The @code{MULTILIB_REQUIRED} can be used together with
+@code{MULTILIB_EXCEPTIONS}. The option combinations generated from
+@code{MULTILIB_OPTIONS} will be filtered by @code{MULTILIB_EXCEPTIONS}
+and then by @code{MULTILIB_REQUIRED}.
+
@findex MULTILIB_EXTRA_OPTS
@item MULTILIB_EXTRA_OPTS
Sometimes it is desirable that when building multiple versions of
--- a/src/gcc/doc/fsf-funding.7
+++ b/src/gcc/doc/fsf-funding.7
@@ -1,15 +1,7 @@
-.\" Automatically generated by Pod::Man 2.16 (Pod::Simple 3.05)
+.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
.\"
.\" Standard preamble:
.\" ========================================================================
-.de Sh \" Subsection heading
-.br
-.if t .Sp
-.ne 5
-.PP
-\fB\\$1\fR
-.PP
-..
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
@@ -46,6 +38,8 @@
. ds PI \(*p
. ds L" ``
. ds R" ''
+. ds C`
+. ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
@@ -53,20 +47,27 @@
.el .ds Aq '
.\"
.\" If the F register is turned on, we'll generate index entries on stderr for
-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
-.ie \nF \{\
-. de IX
-. tm Index:\\$1\t\\n%\t"\\$2"
-..
-. nr % 0
-. rr F
-.\}
-.el \{\
-. de IX
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{
+. if \nF \{
+. de IX
+. tm Index:\\$1\t\\n%\t"\\$2"
+..
+. if !\nF==2 \{
+. nr % 0
+. nr F 2
+. \}
+. \}
.\}
+.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear. Run. Save yourself. No user-serviceable parts.
@@ -141,7 +142,7 @@
fsf\-funding \- Funding Free Software
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
-.Sh "Funding Free Software"
+.SS "Funding Free Software"
.IX Subsection "Funding Free Software"
If you want to have more free software a few years from now, it makes
sense for you to help encourage people to contribute funds for its
--- a/src/gcc/doc/gfdl.7
+++ b/src/gcc/doc/gfdl.7
@@ -1,645 +1 @@
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-..
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-.ft CW
-.nf
-.ne \\$1
-..
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-.ft R
-.fi
-..
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-.tr \(*W-
-.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
-.ie n \{\
-. ds -- \(*W-
-. ds PI pi
-. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
-. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
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-. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
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-. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
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-. \" troff and (daisy-wheel) nroff accents
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-.ds ae a\h'-(\w'a'u*4/10)'e
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-. \" corrections for vroff
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-.\" ========================================================================
-.\"
-.IX Title "GFDL 7"
-.TH GFDL 7 "2014-06-12" "gcc-4.7.4" "GNU"
-.\" For nroff, turn off justification. Always turn off hyphenation; it makes
-.\" way too many mistakes in technical documents.
-.if n .ad l
-.nh
-.SH "NAME"
-gfdl \- GNU Free Documentation License
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-.Sh "\s-1GNU\s0 Free Documentation License"
-.IX Subsection "GNU Free Documentation License"
-.Sh "Version 1.3, 3 November 2008"
-.IX Subsection "Version 1.3, 3 November 2008"
-.Vb 2
-\& Copyright (c) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
-\& E<lt>B<http://fsf.org/>E<gt>
-\&
-\& Everyone is permitted to copy and distribute verbatim copies
-\& of this license document, but changing it is not allowed.
-.Ve
-.IP "0." 4
-.IX Item "0."
-\&\s-1PREAMBLE\s0
-.Sp
-The purpose of this License is to make a manual, textbook, or other
-functional and useful document \fIfree\fR in the sense of freedom: to
-assure everyone the effective freedom to copy and redistribute it,
-with or without modifying it, either commercially or noncommercially.
-Secondarily, this License preserves for the author and publisher a way
-to get credit for their work, while not being considered responsible
-for modifications made by others.
-.Sp
-This License is a kind of \*(L"copyleft\*(R", which means that derivative
-works of the document must themselves be free in the same sense. It
-complements the \s-1GNU\s0 General Public License, which is a copyleft
-license designed for free software.
-.Sp
-We have designed this License in order to use it for manuals for free
-software, because free software needs free documentation: a free
-program should come with manuals providing the same freedoms that the
-software does. But this License is not limited to software manuals;
-it can be used for any textual work, regardless of subject matter or
-whether it is published as a printed book. We recommend this License
-principally for works whose purpose is instruction or reference.
-.IP "1." 4
-.IX Item "1."
-\&\s-1APPLICABILITY\s0 \s-1AND\s0 \s-1DEFINITIONS\s0
-.Sp
-This License applies to any manual or other work, in any medium, that
-contains a notice placed by the copyright holder saying it can be
-distributed under the terms of this License. Such a notice grants a
-world-wide, royalty-free license, unlimited in duration, to use that
-work under the conditions stated herein. The \*(L"Document\*(R", below,
-refers to any such manual or work. Any member of the public is a
-licensee, and is addressed as \*(L"you\*(R". You accept the license if you
-copy, modify or distribute the work in a way requiring permission
-under copyright law.
-.Sp
-A \*(L"Modified Version\*(R" of the Document means any work containing the
-Document or a portion of it, either copied verbatim, or with
-modifications and/or translated into another language.
-.Sp
-A \*(L"Secondary Section\*(R" is a named appendix or a front-matter section
-of the Document that deals exclusively with the relationship of the
-publishers or authors of the Document to the Document's overall
-subject (or to related matters) and contains nothing that could fall
-directly within that overall subject. (Thus, if the Document is in
-part a textbook of mathematics, a Secondary Section may not explain
-any mathematics.) The relationship could be a matter of historical
-connection with the subject or with related matters, or of legal,
-commercial, philosophical, ethical or political position regarding
-them.
-.Sp
-The \*(L"Invariant Sections\*(R" are certain Secondary Sections whose titles
-are designated, as being those of Invariant Sections, in the notice
-that says that the Document is released under this License. If a
-section does not fit the above definition of Secondary then it is not
-allowed to be designated as Invariant. The Document may contain zero
-Invariant Sections. If the Document does not identify any Invariant
-Sections then there are none.
-.Sp
-The \*(L"Cover Texts\*(R" are certain short passages of text that are listed,
-as Front-Cover Texts or Back-Cover Texts, in the notice that says that
-the Document is released under this License. A Front-Cover Text may
-be at most 5 words, and a Back-Cover Text may be at most 25 words.
-.Sp
-A \*(L"Transparent\*(R" copy of the Document means a machine-readable copy,
-represented in a format whose specification is available to the
-general public, that is suitable for revising the document
-straightforwardly with generic text editors or (for images composed of
-pixels) generic paint programs or (for drawings) some widely available
-drawing editor, and that is suitable for input to text formatters or
-for automatic translation to a variety of formats suitable for input
-to text formatters. A copy made in an otherwise Transparent file
-format whose markup, or absence of markup, has been arranged to thwart
-or discourage subsequent modification by readers is not Transparent.
-An image format is not Transparent if used for any substantial amount
-of text. A copy that is not \*(L"Transparent\*(R" is called \*(L"Opaque\*(R".
-.Sp
-Examples of suitable formats for Transparent copies include plain
-\&\s-1ASCII\s0 without markup, Texinfo input format, LaTeX input
-format, \s-1SGML\s0 or \s-1XML\s0 using a publicly available
-\&\s-1DTD\s0, and standard-conforming simple \s-1HTML\s0,
-PostScript or \s-1PDF\s0 designed for human modification. Examples
-of transparent image formats include \s-1PNG\s0, \s-1XCF\s0 and
-\&\s-1JPG\s0. Opaque formats include proprietary formats that can be
-read and edited only by proprietary word processors, \s-1SGML\s0 or
-\&\s-1XML\s0 for which the \s-1DTD\s0 and/or processing tools are
-not generally available, and the machine-generated \s-1HTML\s0,
-PostScript or \s-1PDF\s0 produced by some word processors for
-output purposes only.
-.Sp
-The \*(L"Title Page\*(R" means, for a printed book, the title page itself,
-plus such following pages as are needed to hold, legibly, the material
-this License requires to appear in the title page. For works in
-formats which do not have any title page as such, \*(L"Title Page\*(R" means
-the text near the most prominent appearance of the work's title,
-preceding the beginning of the body of the text.
-.Sp
-The \*(L"publisher\*(R" means any person or entity that distributes copies
-of the Document to the public.
-.Sp
-A section \*(L"Entitled \s-1XYZ\s0\*(R" means a named subunit of the Document whose
-title either is precisely \s-1XYZ\s0 or contains \s-1XYZ\s0 in parentheses following
-text that translates \s-1XYZ\s0 in another language. (Here \s-1XYZ\s0 stands for a
-specific section name mentioned below, such as \*(L"Acknowledgements\*(R",
-\&\*(L"Dedications\*(R", \*(L"Endorsements\*(R", or \*(L"History\*(R".) To \*(L"Preserve the Title\*(R"
-of such a section when you modify the Document means that it remains a
-section \*(L"Entitled \s-1XYZ\s0\*(R" according to this definition.
-.Sp
-The Document may include Warranty Disclaimers next to the notice which
-states that this License applies to the Document. These Warranty
-Disclaimers are considered to be included by reference in this
-License, but only as regards disclaiming warranties: any other
-implication that these Warranty Disclaimers may have is void and has
-no effect on the meaning of this License.
-.IP "2." 4
-.IX Item "2."
-\&\s-1VERBATIM\s0 \s-1COPYING\s0
-.Sp
-You may copy and distribute the Document in any medium, either
-commercially or noncommercially, provided that this License, the
-copyright notices, and the license notice saying this License applies
-to the Document are reproduced in all copies, and that you add no other
-conditions whatsoever to those of this License. You may not use
-technical measures to obstruct or control the reading or further
-copying of the copies you make or distribute. However, you may accept
-compensation in exchange for copies. If you distribute a large enough
-number of copies you must also follow the conditions in section 3.
-.Sp
-You may also lend copies, under the same conditions stated above, and
-you may publicly display copies.
-.IP "3." 4
-.IX Item "3."
-\&\s-1COPYING\s0 \s-1IN\s0 \s-1QUANTITY\s0
-.Sp
-If you publish printed copies (or copies in media that commonly have
-printed covers) of the Document, numbering more than 100, and the
-Document's license notice requires Cover Texts, you must enclose the
-copies in covers that carry, clearly and legibly, all these Cover
-Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
-the back cover. Both covers must also clearly and legibly identify
-you as the publisher of these copies. The front cover must present
-the full title with all words of the title equally prominent and
-visible. You may add other material on the covers in addition.
-Copying with changes limited to the covers, as long as they preserve
-the title of the Document and satisfy these conditions, can be treated
-as verbatim copying in other respects.
-.Sp
-If the required texts for either cover are too voluminous to fit
-legibly, you should put the first ones listed (as many as fit
-reasonably) on the actual cover, and continue the rest onto adjacent
-pages.
-.Sp
-If you publish or distribute Opaque copies of the Document numbering
-more than 100, you must either include a machine-readable Transparent
-copy along with each Opaque copy, or state in or with each Opaque copy
-a computer-network location from which the general network-using
-public has access to download using public-standard network protocols
-a complete Transparent copy of the Document, free of added material.
-If you use the latter option, you must take reasonably prudent steps,
-when you begin distribution of Opaque copies in quantity, to ensure
-that this Transparent copy will remain thus accessible at the stated
-location until at least one year after the last time you distribute an
-Opaque copy (directly or through your agents or retailers) of that
-edition to the public.
-.Sp
-It is requested, but not required, that you contact the authors of the
-Document well before redistributing any large number of copies, to give
-them a chance to provide you with an updated version of the Document.
-.IP "4." 4
-.IX Item "4."
-\&\s-1MODIFICATIONS\s0
-.Sp
-You may copy and distribute a Modified Version of the Document under
-the conditions of sections 2 and 3 above, provided that you release
-the Modified Version under precisely this License, with the Modified
-Version filling the role of the Document, thus licensing distribution
-and modification of the Modified Version to whoever possesses a copy
-of it. In addition, you must do these things in the Modified Version:
-.RS 4
-.IP "A." 4
-.IX Item "A."
-Use in the Title Page (and on the covers, if any) a title distinct
-from that of the Document, and from those of previous versions
-(which should, if there were any, be listed in the History section
-of the Document). You may use the same title as a previous version
-if the original publisher of that version gives permission.
-.IP "B." 4
-.IX Item "B."
-List on the Title Page, as authors, one or more persons or entities
-responsible for authorship of the modifications in the Modified
-Version, together with at least five of the principal authors of the
-Document (all of its principal authors, if it has fewer than five),
-unless they release you from this requirement.
-.IP "C." 4
-.IX Item "C."
-State on the Title page the name of the publisher of the
-Modified Version, as the publisher.
-.IP "D." 4
-.IX Item "D."
-Preserve all the copyright notices of the Document.
-.IP "E." 4
-.IX Item "E."
-Add an appropriate copyright notice for your modifications
-adjacent to the other copyright notices.
-.IP "F." 4
-.IX Item "F."
-Include, immediately after the copyright notices, a license notice
-giving the public permission to use the Modified Version under the
-terms of this License, in the form shown in the Addendum below.
-.IP "G." 4
-.IX Item "G."
-Preserve in that license notice the full lists of Invariant Sections
-and required Cover Texts given in the Document's license notice.
-.IP "H." 4
-.IX Item "H."
-Include an unaltered copy of this License.
-.IP "I." 4
-.IX Item "I."
-Preserve the section Entitled \*(L"History\*(R", Preserve its Title, and add
-to it an item stating at least the title, year, new authors, and
-publisher of the Modified Version as given on the Title Page. If
-there is no section Entitled \*(L"History\*(R" in the Document, create one
-stating the title, year, authors, and publisher of the Document as
-given on its Title Page, then add an item describing the Modified
-Version as stated in the previous sentence.
-.IP "J." 4
-.IX Item "J."
-Preserve the network location, if any, given in the Document for
-public access to a Transparent copy of the Document, and likewise
-the network locations given in the Document for previous versions
-it was based on. These may be placed in the \*(L"History\*(R" section.
-You may omit a network location for a work that was published at
-least four years before the Document itself, or if the original
-publisher of the version it refers to gives permission.
-.IP "K." 4
-.IX Item "K."
-For any section Entitled \*(L"Acknowledgements\*(R" or \*(L"Dedications\*(R", Preserve
-the Title of the section, and preserve in the section all the
-substance and tone of each of the contributor acknowledgements and/or
-dedications given therein.
-.IP "L." 4
-.IX Item "L."
-Preserve all the Invariant Sections of the Document,
-unaltered in their text and in their titles. Section numbers
-or the equivalent are not considered part of the section titles.
-.IP "M." 4
-.IX Item "M."
-Delete any section Entitled \*(L"Endorsements\*(R". Such a section
-may not be included in the Modified Version.
-.IP "N." 4
-.IX Item "N."
-Do not retitle any existing section to be Entitled \*(L"Endorsements\*(R" or
-to conflict in title with any Invariant Section.
-.IP "O." 4
-.IX Item "O."
-Preserve any Warranty Disclaimers.
-.RE
-.RS 4
-.Sp
-If the Modified Version includes new front-matter sections or
-appendices that qualify as Secondary Sections and contain no material
-copied from the Document, you may at your option designate some or all
-of these sections as invariant. To do this, add their titles to the
-list of Invariant Sections in the Modified Version's license notice.
-These titles must be distinct from any other section titles.
-.Sp
-You may add a section Entitled \*(L"Endorsements\*(R", provided it contains
-nothing but endorsements of your Modified Version by various
-parties\-\-\-for example, statements of peer review or that the text has
-been approved by an organization as the authoritative definition of a
-standard.
-.Sp
-You may add a passage of up to five words as a Front-Cover Text, and a
-passage of up to 25 words as a Back-Cover Text, to the end of the list
-of Cover Texts in the Modified Version. Only one passage of
-Front-Cover Text and one of Back-Cover Text may be added by (or
-through arrangements made by) any one entity. If the Document already
-includes a cover text for the same cover, previously added by you or
-by arrangement made by the same entity you are acting on behalf of,
-you may not add another; but you may replace the old one, on explicit
-permission from the previous publisher that added the old one.
-.Sp
-The author(s) and publisher(s) of the Document do not by this License
-give permission to use their names for publicity for or to assert or
-imply endorsement of any Modified Version.
-.RE
-.IP "5." 4
-.IX Item "5."
-\&\s-1COMBINING\s0 \s-1DOCUMENTS\s0
-.Sp
-You may combine the Document with other documents released under this
-License, under the terms defined in section 4 above for modified
-versions, provided that you include in the combination all of the
-Invariant Sections of all of the original documents, unmodified, and
-list them all as Invariant Sections of your combined work in its
-license notice, and that you preserve all their Warranty Disclaimers.
-.Sp
-The combined work need only contain one copy of this License, and
-multiple identical Invariant Sections may be replaced with a single
-copy. If there are multiple Invariant Sections with the same name but
-different contents, make the title of each such section unique by
-adding at the end of it, in parentheses, the name of the original
-author or publisher of that section if known, or else a unique number.
-Make the same adjustment to the section titles in the list of
-Invariant Sections in the license notice of the combined work.
-.Sp
-In the combination, you must combine any sections Entitled \*(L"History\*(R"
-in the various original documents, forming one section Entitled
-\&\*(L"History\*(R"; likewise combine any sections Entitled \*(L"Acknowledgements\*(R",
-and any sections Entitled \*(L"Dedications\*(R". You must delete all
-sections Entitled \*(L"Endorsements.\*(R"
-.IP "6." 4
-.IX Item "6."
-\&\s-1COLLECTIONS\s0 \s-1OF\s0 \s-1DOCUMENTS\s0
-.Sp
-You may make a collection consisting of the Document and other documents
-released under this License, and replace the individual copies of this
-License in the various documents with a single copy that is included in
-the collection, provided that you follow the rules of this License for
-verbatim copying of each of the documents in all other respects.
-.Sp
-You may extract a single document from such a collection, and distribute
-it individually under this License, provided you insert a copy of this
-License into the extracted document, and follow this License in all
-other respects regarding verbatim copying of that document.
-.IP "7." 4
-.IX Item "7."
-\&\s-1AGGREGATION\s0 \s-1WITH\s0 \s-1INDEPENDENT\s0 \s-1WORKS\s0
-.Sp
-A compilation of the Document or its derivatives with other separate
-and independent documents or works, in or on a volume of a storage or
-distribution medium, is called an \*(L"aggregate\*(R" if the copyright
-resulting from the compilation is not used to limit the legal rights
-of the compilation's users beyond what the individual works permit.
-When the Document is included in an aggregate, this License does not
-apply to the other works in the aggregate which are not themselves
-derivative works of the Document.
-.Sp
-If the Cover Text requirement of section 3 is applicable to these
-copies of the Document, then if the Document is less than one half of
-the entire aggregate, the Document's Cover Texts may be placed on
-covers that bracket the Document within the aggregate, or the
-electronic equivalent of covers if the Document is in electronic form.
-Otherwise they must appear on printed covers that bracket the whole
-aggregate.
-.IP "8." 4
-.IX Item "8."
-\&\s-1TRANSLATION\s0
-.Sp
-Translation is considered a kind of modification, so you may
-distribute translations of the Document under the terms of section 4.
-Replacing Invariant Sections with translations requires special
-permission from their copyright holders, but you may include
-translations of some or all Invariant Sections in addition to the
-original versions of these Invariant Sections. You may include a
-translation of this License, and all the license notices in the
-Document, and any Warranty Disclaimers, provided that you also include
-the original English version of this License and the original versions
-of those notices and disclaimers. In case of a disagreement between
-the translation and the original version of this License or a notice
-or disclaimer, the original version will prevail.
-.Sp
-If a section in the Document is Entitled \*(L"Acknowledgements\*(R",
-\&\*(L"Dedications\*(R", or \*(L"History\*(R", the requirement (section 4) to Preserve
-its Title (section 1) will typically require changing the actual
-title.
-.IP "9." 4
-.IX Item "9."
-\&\s-1TERMINATION\s0
-.Sp
-You may not copy, modify, sublicense, or distribute the Document
-except as expressly provided under this License. Any attempt
-otherwise to copy, modify, sublicense, or distribute it is void, and
-will automatically terminate your rights under this License.
-.Sp
-However, if you cease all violation of this License, then your license
-from a particular copyright holder is reinstated (a) provisionally,
-unless and until the copyright holder explicitly and finally
-terminates your license, and (b) permanently, if the copyright holder
-fails to notify you of the violation by some reasonable means prior to
-60 days after the cessation.
-.Sp
-Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
-copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-.Sp
-Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License. If your rights have been terminated and not permanently
-reinstated, receipt of a copy of some or all of the same material does
-not give you any rights to use it.
-.IP "10." 4
-.IX Item "10."
-\&\s-1FUTURE\s0 \s-1REVISIONS\s0 \s-1OF\s0 \s-1THIS\s0 \s-1LICENSE\s0
-.Sp
-The Free Software Foundation may publish new, revised versions
-of the \s-1GNU\s0 Free Documentation License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns. See
-<\fBhttp://www.gnu.org/copyleft/\fR>.
-.Sp
-Each version of the License is given a distinguishing version number.
-If the Document specifies that a particular numbered version of this
-License \*(L"or any later version\*(R" applies to it, you have the option of
-following the terms and conditions either of that specified version or
-of any later version that has been published (not as a draft) by the
-Free Software Foundation. If the Document does not specify a version
-number of this License, you may choose any version ever published (not
-as a draft) by the Free Software Foundation. If the Document
-specifies that a proxy can decide which future versions of this
-License can be used, that proxy's public statement of acceptance of a
-version permanently authorizes you to choose that version for the
-Document.
-.IP "11." 4
-.IX Item "11."
-\&\s-1RELICENSING\s0
-.Sp
-\&\*(L"Massive Multiauthor Collaboration Site\*(R" (or \*(L"\s-1MMC\s0 Site\*(R") means any
-World Wide Web server that publishes copyrightable works and also
-provides prominent facilities for anybody to edit those works. A
-public wiki that anybody can edit is an example of such a server. A
-\&\*(L"Massive Multiauthor Collaboration\*(R" (or \*(L"\s-1MMC\s0\*(R") contained in the
-site means any set of copyrightable works thus published on the \s-1MMC\s0
-site.
-.Sp
-\&\*(L"CC-BY-SA\*(R" means the Creative Commons Attribution-Share Alike 3.0
-license published by Creative Commons Corporation, a not-for-profit
-corporation with a principal place of business in San Francisco,
-California, as well as future copyleft versions of that license
-published by that same organization.
-.Sp
-\&\*(L"Incorporate\*(R" means to publish or republish a Document, in whole or
-in part, as part of another Document.
-.Sp
-An \s-1MMC\s0 is \*(L"eligible for relicensing\*(R" if it is licensed under this
-License, and if all works that were first published under this License
-somewhere other than this \s-1MMC\s0, and subsequently incorporated in whole
-or in part into the \s-1MMC\s0, (1) had no cover texts or invariant sections,
-and (2) were thus incorporated prior to November 1, 2008.
-.Sp
-The operator of an \s-1MMC\s0 Site may republish an \s-1MMC\s0 contained in the site
-under CC-BY-SA on the same site at any time before August 1, 2009,
-provided the \s-1MMC\s0 is eligible for relicensing.
-.Sh "\s-1ADDENDUM:\s0 How to use this License for your documents"
-.IX Subsection "ADDENDUM: How to use this License for your documents"
-To use this License in a document you have written, include a copy of
-the License in the document and put the following copyright and
-license notices just after the title page:
-.PP
-.Vb 7
-\& Copyright (C) <year> <your name>.
-\& Permission is granted to copy, distribute and/or modify this document
-\& under the terms of the GNU Free Documentation License, Version 1.3
-\& or any later version published by the Free Software Foundation;
-\& with no Invariant Sections, no Front\-Cover Texts, and no Back\-Cover
-\& Texts. A copy of the license is included in the section entitled "GNU
-\& Free Documentation License".
-.Ve
-.PP
-If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
-replace the \*(L"with...Texts.\*(R" line with this:
-.PP
-.Vb 3
-\& with the Invariant Sections being <list their titles>, with
-\& the Front\-Cover Texts being <list>, and with the Back\-Cover Texts
-\& being <list>.
-.Ve
-.PP
-If you have Invariant Sections without Cover Texts, or some other
-combination of the three, merge those two alternatives to suit the
-situation.
-.PP
-If your document contains nontrivial examples of program code, we
-recommend releasing these examples in parallel under your choice of
-free software license, such as the \s-1GNU\s0 General Public License,
-to permit their use in free software.
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIgpl\fR\|(7), \fIfsf\-funding\fR\|(7).
-.SH "COPYRIGHT"
-.IX Header "COPYRIGHT"
-Copyright (c) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
-<\fBhttp://fsf.org/\fR>
-.PP
-Everyone is permitted to copy and distribute verbatim copies
-of this license document, but changing it is not allowed.
+timestamp
--- a/src/gcc/doc/gpl.7
+++ b/src/gcc/doc/gpl.7
@@ -1,15 +1,7 @@
-.\" Automatically generated by Pod::Man 2.16 (Pod::Simple 3.05)
+.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
.\"
.\" Standard preamble:
.\" ========================================================================
-.de Sh \" Subsection heading
-.br
-.if t .Sp
-.ne 5
-.PP
-\fB\\$1\fR
-.PP
-..
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
@@ -46,6 +38,8 @@
. ds PI \(*p
. ds L" ``
. ds R" ''
+. ds C`
+. ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
@@ -53,20 +47,27 @@
.el .ds Aq '
.\"
.\" If the F register is turned on, we'll generate index entries on stderr for
-.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
-.ie \nF \{\
-. de IX
-. tm Index:\\$1\t\\n%\t"\\$2"
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
..
-. nr % 0
-. rr F
-.\}
-.el \{\
-. de IX
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{
+. if \nF \{
+. de IX
+. tm Index:\\$1\t\\n%\t"\\$2"
..
+. if !\nF==2 \{
+. nr % 0
+. nr F 2
+. \}
+. \}
.\}
+.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear. Run. Save yourself. No user-serviceable parts.
@@ -141,9 +142,9 @@
gpl \- GNU General Public License
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
-.Sh "\s-1GNU\s0 General Public License"
+.SS "\s-1GNU\s0 General Public License"
.IX Subsection "GNU General Public License"
-.Sh "Version 3, 29 June 2007"
+.SS "Version 3, 29 June 2007"
.IX Subsection "Version 3, 29 June 2007"
.Vb 1
\& Copyright (c) 2007 Free Software Foundation, Inc. <http://fsf.org/>
@@ -151,7 +152,7 @@
\& Everyone is permitted to copy and distribute verbatim copies of this
\& license document, but changing it is not allowed.
.Ve
-.Sh "Preamble"
+.SS "Preamble"
.IX Subsection "Preamble"
The \s-1GNU\s0 General Public License is a free, copyleft license for
software and other kinds of works.
@@ -184,7 +185,7 @@
receive or can get the source code. And you must show them these
terms so they know their rights.
.PP
-Developers that use the \s-1GNU\s0 \s-1GPL\s0 protect your rights with two steps:
+Developers that use the \s-1GNU GPL\s0 protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
.PP
@@ -203,7 +204,7 @@
Therefore, we have designed this version of the \s-1GPL\s0 to prohibit the
practice for those products. If such problems arise substantially in
other domains, we stand ready to extend this provision to those
-domains in future versions of the \s-1GPL\s0, as needed to protect the
+domains in future versions of the \s-1GPL,\s0 as needed to protect the
freedom of users.
.PP
Finally, every program is threatened constantly by software patents.
@@ -215,7 +216,7 @@
.PP
The precise terms and conditions for copying, distribution and
modification follow.
-.Sh "\s-1TERMS\s0 \s-1AND\s0 \s-1CONDITIONS\s0"
+.SS "\s-1TERMS AND CONDITIONS\s0"
.IX Subsection "TERMS AND CONDITIONS"
.IP "0. Definitions." 4
.IX Item "0. Definitions."
@@ -750,26 +751,26 @@
later version.
.IP "15. Disclaimer of Warranty." 4
.IX Item "15. Disclaimer of Warranty."
-\&\s-1THERE\s0 \s-1IS\s0 \s-1NO\s0 \s-1WARRANTY\s0 \s-1FOR\s0 \s-1THE\s0 \s-1PROGRAM\s0, \s-1TO\s0 \s-1THE\s0 \s-1EXTENT\s0 \s-1PERMITTED\s0 \s-1BY\s0
-\&\s-1APPLICABLE\s0 \s-1LAW\s0. \s-1EXCEPT\s0 \s-1WHEN\s0 \s-1OTHERWISE\s0 \s-1STATED\s0 \s-1IN\s0 \s-1WRITING\s0 \s-1THE\s0 \s-1COPYRIGHT\s0
-\&\s-1HOLDERS\s0 \s-1AND/OR\s0 \s-1OTHER\s0 \s-1PARTIES\s0 \s-1PROVIDE\s0 \s-1THE\s0 \s-1PROGRAM\s0 \*(L"\s-1AS\s0 \s-1IS\s0\*(R" \s-1WITHOUT\s0
-\&\s-1WARRANTY\s0 \s-1OF\s0 \s-1ANY\s0 \s-1KIND\s0, \s-1EITHER\s0 \s-1EXPRESSED\s0 \s-1OR\s0 \s-1IMPLIED\s0, \s-1INCLUDING\s0, \s-1BUT\s0 \s-1NOT\s0
-\&\s-1LIMITED\s0 \s-1TO\s0, \s-1THE\s0 \s-1IMPLIED\s0 \s-1WARRANTIES\s0 \s-1OF\s0 \s-1MERCHANTABILITY\s0 \s-1AND\s0 \s-1FITNESS\s0 \s-1FOR\s0
-A \s-1PARTICULAR\s0 \s-1PURPOSE\s0. \s-1THE\s0 \s-1ENTIRE\s0 \s-1RISK\s0 \s-1AS\s0 \s-1TO\s0 \s-1THE\s0 \s-1QUALITY\s0 \s-1AND\s0
-\&\s-1PERFORMANCE\s0 \s-1OF\s0 \s-1THE\s0 \s-1PROGRAM\s0 \s-1IS\s0 \s-1WITH\s0 \s-1YOU\s0. \s-1SHOULD\s0 \s-1THE\s0 \s-1PROGRAM\s0 \s-1PROVE\s0
-\&\s-1DEFECTIVE\s0, \s-1YOU\s0 \s-1ASSUME\s0 \s-1THE\s0 \s-1COST\s0 \s-1OF\s0 \s-1ALL\s0 \s-1NECESSARY\s0 \s-1SERVICING\s0, \s-1REPAIR\s0 \s-1OR\s0
-\&\s-1CORRECTION\s0.
+\&\s-1THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM \*(L"AS IS\*(R" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.\s0
.IP "16. Limitation of Liability." 4
.IX Item "16. Limitation of Liability."
-\&\s-1IN\s0 \s-1NO\s0 \s-1EVENT\s0 \s-1UNLESS\s0 \s-1REQUIRED\s0 \s-1BY\s0 \s-1APPLICABLE\s0 \s-1LAW\s0 \s-1OR\s0 \s-1AGREED\s0 \s-1TO\s0 \s-1IN\s0 \s-1WRITING\s0
-\&\s-1WILL\s0 \s-1ANY\s0 \s-1COPYRIGHT\s0 \s-1HOLDER\s0, \s-1OR\s0 \s-1ANY\s0 \s-1OTHER\s0 \s-1PARTY\s0 \s-1WHO\s0 \s-1MODIFIES\s0 \s-1AND/OR\s0
-\&\s-1CONVEYS\s0 \s-1THE\s0 \s-1PROGRAM\s0 \s-1AS\s0 \s-1PERMITTED\s0 \s-1ABOVE\s0, \s-1BE\s0 \s-1LIABLE\s0 \s-1TO\s0 \s-1YOU\s0 \s-1FOR\s0 \s-1DAMAGES\s0,
-\&\s-1INCLUDING\s0 \s-1ANY\s0 \s-1GENERAL\s0, \s-1SPECIAL\s0, \s-1INCIDENTAL\s0 \s-1OR\s0 \s-1CONSEQUENTIAL\s0 \s-1DAMAGES\s0
-\&\s-1ARISING\s0 \s-1OUT\s0 \s-1OF\s0 \s-1THE\s0 \s-1USE\s0 \s-1OR\s0 \s-1INABILITY\s0 \s-1TO\s0 \s-1USE\s0 \s-1THE\s0 \s-1PROGRAM\s0 (\s-1INCLUDING\s0 \s-1BUT\s0
-\&\s-1NOT\s0 \s-1LIMITED\s0 \s-1TO\s0 \s-1LOSS\s0 \s-1OF\s0 \s-1DATA\s0 \s-1OR\s0 \s-1DATA\s0 \s-1BEING\s0 \s-1RENDERED\s0 \s-1INACCURATE\s0 \s-1OR\s0
-\&\s-1LOSSES\s0 \s-1SUSTAINED\s0 \s-1BY\s0 \s-1YOU\s0 \s-1OR\s0 \s-1THIRD\s0 \s-1PARTIES\s0 \s-1OR\s0 A \s-1FAILURE\s0 \s-1OF\s0 \s-1THE\s0 \s-1PROGRAM\s0
-\&\s-1TO\s0 \s-1OPERATE\s0 \s-1WITH\s0 \s-1ANY\s0 \s-1OTHER\s0 \s-1PROGRAMS\s0), \s-1EVEN\s0 \s-1IF\s0 \s-1SUCH\s0 \s-1HOLDER\s0 \s-1OR\s0 \s-1OTHER\s0
-\&\s-1PARTY\s0 \s-1HAS\s0 \s-1BEEN\s0 \s-1ADVISED\s0 \s-1OF\s0 \s-1THE\s0 \s-1POSSIBILITY\s0 \s-1OF\s0 \s-1SUCH\s0 \s-1DAMAGES\s0.
+\&\s-1IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM \s0(\s-1INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS\s0), \s-1EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.\s0
.IP "17. Interpretation of Sections 15 and 16." 4
.IX Item "17. Interpretation of Sections 15 and 16."
If the disclaimer of warranty and limitation of liability provided
@@ -778,9 +779,9 @@
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
-.Sh "\s-1END\s0 \s-1OF\s0 \s-1TERMS\s0 \s-1AND\s0 \s-1CONDITIONS\s0"
+.SS "\s-1END OF TERMS AND CONDITIONS\s0"
.IX Subsection "END OF TERMS AND CONDITIONS"
-.Sh "How to Apply These Terms to Your New Programs"
+.SS "How to Apply These Terms to Your New Programs"
.IX Subsection "How to Apply These Terms to Your New Programs"
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
@@ -829,7 +830,7 @@
.PP
You should also get your employer (if you work as a programmer) or school,
if any, to sign a \*(L"copyright disclaimer\*(R" for the program, if necessary.
-For more information on this, and how to apply and follow the \s-1GNU\s0 \s-1GPL\s0, see
+For more information on this, and how to apply and follow the \s-1GNU GPL,\s0 see
<\fBhttp://www.gnu.org/licenses/\fR>.
.PP
The \s-1GNU\s0 General Public License does not permit incorporating your
--- a/src/gcc/doc/install.texi
+++ b/src/gcc/doc/install.texi
@@ -1047,6 +1047,15 @@
conventions, etc.@: should not be built. The default is to build a
predefined set of them.
+@item --enable-multiarch
+Specify whether to enable or disable multiarch support. The default is
+to check for glibc start files in a multiarch location, and enable it
+if the files are found. The auto detection is enabled for native builds,
+and for cross builds configured with @option{--with-sysroot}, and without
+@option{--with-native-system-header-dir}.
+More documentation about multiarch can be found at
+@uref{http://wiki.debian.org/Multiarch}.
+
Some targets provide finer-grained control over which multilibs are built
(e.g., @option{--disable-softfloat}):
@table @code
--- a/src/gcc/doc/invoke.texi
+++ b/src/gcc/doc/invoke.texi
@@ -403,13 +403,15 @@
-fsplit-ivs-in-unroller -fsplit-wide-types -fstack-protector @gol
-fstack-protector-all -fstrict-aliasing -fstrict-overflow @gol
-fthread-jumps -ftracer -ftree-bit-ccp @gol
--ftree-builtin-call-dce -ftree-ccp -ftree-ch -ftree-copy-prop @gol
+-ftree-builtin-call-dce -ftree-ccp -ftree-ch @gol
+-ftree-coalesce-inline-vars -ftree-coalesce-vars -ftree-copy-prop @gol
-ftree-copyrename -ftree-dce -ftree-dominator-opts -ftree-dse @gol
-ftree-forwprop -ftree-fre -ftree-loop-if-convert @gol
-ftree-loop-if-convert-stores -ftree-loop-im @gol
-ftree-phiprop -ftree-loop-distribution -ftree-loop-distribute-patterns @gol
-ftree-loop-ivcanon -ftree-loop-linear -ftree-loop-optimize @gol
--ftree-parallelize-loops=@var{n} -ftree-pre -ftree-pta -ftree-reassoc @gol
+-ftree-parallelize-loops=@var{n} -ftree-pre -ftree-partial-pre -ftree-pta @gol
+-ftree-reassoc @gol
-ftree-sink -ftree-sra -ftree-switch-conversion -ftree-tail-merge @gol
-ftree-ter -ftree-vect-loop-version -ftree-vectorize -ftree-vrp @gol
-funit-at-a-time -funroll-all-loops -funroll-loops @gol
@@ -460,6 +462,15 @@
@c Try and put the significant identifier (CPU or system) first,
@c so users have a clue at guessing where the ones they want will be.
+@emph{AArch64 Options}
+@gccoptlist{-mbig-endian -mlittle-endian @gol
+-mgeneral-regs-only @gol
+-mcmodel=tiny -mcmodel=small -mcmodel=large @gol
+-mstrict-align @gol
+-momit-leaf-frame-pointer -mno-omit-leaf-frame-pointer @gol
+-mtls-dialect=desc -mtls-dialect=traditional @gol
+-march=@var{name} -mcpu=@var{name} -mtune=@var{name}}
+
@emph{Adapteva Epiphany Options}
@gccoptlist{-mhalf-reg-file -mprefer-short-insn-regs @gol
-mbranch-cost=@var{num} -mcmove -mnops=@var{num} -msoft-cmpsf @gol
@@ -494,7 +505,8 @@
-mtp=@var{name} -mtls-dialect=@var{dialect} @gol
-mword-relocations @gol
-mfix-cortex-m3-ldrd @gol
--munaligned-access}
+-munaligned-access @gol
+-mneon-for-64bits}
@emph{AVR Options}
@gccoptlist{-mmcu=@var{mcu} -maccumulate-args -mbranch-cost=@var{cost} @gol
@@ -6239,8 +6251,8 @@
Optimize yet more. @option{-O3} turns on all optimizations specified
by @option{-O2} and also turns on the @option{-finline-functions},
@option{-funswitch-loops}, @option{-fpredictive-commoning},
-@option{-fgcse-after-reload}, @option{-ftree-vectorize} and
-@option{-fipa-cp-clone} options.
+@option{-fgcse-after-reload}, @option{-ftree-vectorize},
+@option{-ftree-partial-pre} and @option{-fipa-cp-clone} options.
@item -O0
@opindex O0
@@ -7035,6 +7047,11 @@
Perform partial redundancy elimination (PRE) on trees. This flag is
enabled by default at @option{-O2} and @option{-O3}.
+@item -ftree-partial-pre
+@opindex ftree-partial-pre
+Make partial redundancy elimination (PRE) more aggressive. This flag is
+enabled by default at @option{-O3}.
+
@item -ftree-forwprop
@opindex ftree-forwprop
Perform forward propagation on trees. This flag is enabled by default
@@ -7430,6 +7447,24 @@
variable names which more closely resemble the original variables. This flag
is enabled by default at @option{-O} and higher.
+@item -ftree-coalesce-inlined-vars
+Tell the copyrename pass (see @option{-ftree-copyrename}) to attempt to
+combine small user-defined variables too, but only if they were inlined
+from other functions. It is a more limited form of
+@option{-ftree-coalesce-vars}. This may harm debug information of such
+inlined variables, but it will keep variables of the inlined-into
+function apart from each other, such that they are more likely to
+contain the expected values in a debugging session. This was the
+default in GCC versions older than 4.7.
+
+@item -ftree-coalesce-vars
+Tell the copyrename pass (see @option{-ftree-copyrename}) to attempt to
+combine small user-defined variables too, instead of just compiler
+temporaries. This may severely limit the ability to debug an optimized
+program compiled with @option{-fno-var-tracking-assignments}. In the
+negated form, this flag prevents SSA coalescing of user variables,
+including inlined ones. This option is enabled by default.
+
@item -ftree-ter
@opindex ftree-ter
Perform temporary expression replacement during the SSA->normal phase. Single
@@ -10331,6 +10366,7 @@
@c in Machine Dependent Options
@menu
+* AArch64 Options::
* Adapteva Epiphany Options::
* ARM Options::
* AVR Options::
@@ -10539,6 +10575,125 @@
@end table
+@node AArch64 Options
+@subsection AArch64 Options
+@cindex AArch64 Options
+
+These options are defined for AArch64 implementations:
+
+@table @gcctabopt
+
+@item -mbig-endian
+@opindex mbig-endian
+Generate big-endian code. This is the default when GCC is configured for an
+@samp{aarch64_be-*-*} target.
+
+@item -mgeneral-regs-only
+@opindex mgeneral-regs-only
+Generate code which uses only the general registers.
+
+@item -mlittle-endian
+@opindex mlittle-endian
+Generate little-endian code. This is the default when GCC is configured for an
+@samp{aarch64-*-*} but not an @samp{aarch64_be-*-*} target.
+
+@item -mcmodel=tiny
+@opindex mcmodel=tiny
+Generate code for the tiny code model. The program and its statically defined
+symbols must be within 1GB of each other. Pointers are 64 bits. Programs can
+be statically or dynamically linked. This model is not fully implemented and
+mostly treated as "small".
+
+@item -mcmodel=small
+@opindex mcmodel=small
+Generate code for the small code model. The program and its statically defined
+symbols must be within 4GB of each other. Pointers are 64 bits. Programs can
+be statically or dynamically linked. This is the default code model.
+
+@item -mcmodel=large
+@opindex mcmodel=large
+Generate code for the large code model. This makes no assumptions about
+addresses and sizes of sections. Pointers are 64 bits. Programs can be
+statically linked only.
+
+@item -mstrict-align
+@opindex mstrict-align
+Do not assume that unaligned memory references will be handled by the system.
+
+@item -momit-leaf-frame-pointer
+@item -mno-omit-leaf-frame-pointer
+@opindex momit-leaf-frame-pointer
+@opindex mno-omit-leaf-frame-pointer
+Omit or keep the frame pointer in leaf functions. The former behaviour is the
+default.
+
+@item -mtls-dialect=desc
+@opindex mtls-dialect=desc
+Use TLS descriptors as the thread-local storage mechanism for dynamic accesses
+of TLS variables. This is the default.
+
+@item -mtls-dialect=traditional
+@opindex mtls-dialect=traditional
+Use traditional TLS as the thread-local storage mechanism for dynamic accesses
+of TLS variables.
+
+@item -march=@var{name}
+@opindex march
+Specify the name of the target architecture, optionally suffixed by one or
+more feature modifiers. This option has the form
+@option{-march=@var{arch}@r{@{}+@r{[}no@r{]}@var{feature}@r{@}*}}, where the
+only value for @var{arch} is @samp{armv8-a}. The possible values for
+@var{feature} are documented in the sub-section below.
+
+Where conflicting feature modifiers are specified, the right-most feature is
+used.
+
+GCC uses this name to determine what kind of instructions it can emit when
+generating assembly code. This option can be used in conjunction with or
+instead of the @option{-mcpu=} option.
+
+@item -mcpu=@var{name}
+@opindex mcpu
+Specify the name of the target processor, optionally suffixed by one or more
+feature modifiers. This option has the form
+@option{-mcpu=@var{cpu}@r{@{}+@r{[}no@r{]}@var{feature}@r{@}*}}, where the
+possible values for @var{cpu} are @samp{generic}, @samp{large}. The
+possible values for @var{feature} are documented in the sub-section
+below.
+
+Where conflicting feature modifiers are specified, the right-most feature is
+used.
+
+GCC uses this name to determine what kind of instructions it can emit when
+generating assembly code.
+
+@item -mtune=@var{name}
+@opindex mtune
+Specify the name of the processor to tune the performance for. The code will
+be tuned as if the target processor were of the type specified in this option,
+but still using instructions compatible with the target processor specified
+by a @option{-mcpu=} option. This option cannot be suffixed by feature
+modifiers.
+
+@end table
+
+@subsubsection @option{-march} and @option{-mcpu} feature modifiers
+@cindex @option{-march} feature modifiers
+@cindex @option{-mcpu} feature modifiers
+Feature modifiers used with @option{-march} and @option{-mcpu} can be one
+the following:
+
+@table @samp
+@item crypto
+Enable Crypto extension. This implies Advanced SIMD is enabled.
+@item fp
+Enable floating-point instructions.
+@item simd
+Enable Advanced SIMD instructions. This implies floating-point instructions
+are enabled. This is the default for all current possible values for options
+@option{-march} and @option{-mcpu=}.
+@end table
+
@node ARM Options
@subsection ARM Options
@cindex ARM options
@@ -10952,6 +11107,11 @@
preprocessor symbol @code{__ARM_FEATURE_UNALIGNED} will also be
defined.
+@item -mneon-for-64bits
+@opindex mneon-for-64bits
+Enables using Neon to handle scalar 64-bits operations. This is
+disabled by default since the cost of moving data from core registers
+to Neon is high.
@end table
@node AVR Options
--- a/src/gcc/doc/md.texi
+++ b/src/gcc/doc/md.texi
@@ -1653,6 +1653,62 @@
the meanings of that architecture's constraints.
@table @emph
+@item AArch64 family---@file{config/aarch64/constraints.md}
+@table @code
+@item k
+The stack pointer register (@code{SP})
+
+@item w
+Floating point or SIMD vector register
+
+@item I
+Integer constant that is valid as an immediate operand in an @code{ADD}
+instruction
+
+@item J
+Integer constant that is valid as an immediate operand in a @code{SUB}
+instruction (once negated)
+
+@item K
+Integer constant that can be used with a 32-bit logical instruction
+
+@item L
+Integer constant that can be used with a 64-bit logical instruction
+
+@item M
+Integer constant that is valid as an immediate operand in a 32-bit @code{MOV}
+pseudo instruction. The @code{MOV} may be assembled to one of several different
+machine instructions depending on the value
+
+@item N
+Integer constant that is valid as an immediate operand in a 64-bit @code{MOV}
+pseudo instruction
+
+@item S
+An absolute symbolic address or a label reference
+
+@item Y
+Floating point constant zero
+
+@item Z
+Integer constant zero
+
+@item Usa
+An absolute symbolic address
+
+@item Ush
+The high part (bits 12 and upwards) of the pc-relative address of a symbol
+within 4GB of the instruction
+
+@item Q
+A memory address which uses a single base register with no offset
+
+@item Ump
+A memory address suitable for a load/store pair instruction in SI, DI, SF and
+DF modes
+
+@end table
+
@item ARM family---@file{config/arm/arm.h}
@table @code
@item f
@@ -4736,6 +4792,10 @@
Vector shift and rotate instructions that take vectors as operand 2
instead of a scalar type.
+@cindex @code{bswap@var{m}2} instruction pattern
+@item @samp{bswap@var{m}2}
+Reverse the order of bytes of operand 1 and store the result in operand 0.
+
@cindex @code{neg@var{m}2} instruction pattern
@cindex @code{ssneg@var{m}2} instruction pattern
@cindex @code{usneg@var{m}2} instruction pattern
@@ -8888,6 +8948,7 @@
@menu
* Mode Iterators:: Generating variations of patterns for different modes.
* Code Iterators:: Doing the same for codes.
+* Int Iterators:: Doing the same for integers.
@end menu
@node Mode Iterators
@@ -9159,4 +9220,81 @@
@dots{}
@end smallexample
+@node Int Iterators
+@subsection Int Iterators
+@cindex int iterators in @file{.md} files
+@findex define_int_iterator
+@findex define_int_attr
+
+Int iterators operate in a similar way to code iterators. @xref{Code Iterators}.
+
+The construct:
+
+@smallexample
+(define_int_iterator @var{name} [(@var{int1} "@var{cond1}") @dots{} (@var{intn} "@var{condn}")])
+@end smallexample
+
+defines a pseudo integer constant @var{name} that can be instantiated as
+@var{inti} if condition @var{condi} is true. Each @var{int}
+must have the same rtx format. @xref{RTL Classes}. Int iterators can appear
+in only those rtx fields that have 'i' as the specifier. This means that
+each @var{int} has to be a constant defined using define_constant or
+define_c_enum.
+
+As with mode and code iterators, each pattern that uses @var{name} will be
+expanded @var{n} times, once with all uses of @var{name} replaced by
+@var{int1}, once with all uses replaced by @var{int2}, and so on.
+@xref{Defining Mode Iterators}.
+
+It is possible to define attributes for ints as well as for codes and modes.
+Attributes are defined using:
+
+@smallexample
+(define_int_attr @var{name} [(@var{int1} "@var{value1}") @dots{} (@var{intn} "@var{valuen}")])
+@end smallexample
+
+Here's an example of int iterators in action, taken from the ARM port:
+
+@smallexample
+(define_int_iterator QABSNEG [UNSPEC_VQABS UNSPEC_VQNEG])
+
+(define_int_attr absneg [(UNSPEC_VQABS "abs") (UNSPEC_VQNEG "neg")])
+
+(define_insn "neon_vq<absneg><mode>"
+ [(set (match_operand:VDQIW 0 "s_register_operand" "=w")
+ (unspec:VDQIW [(match_operand:VDQIW 1 "s_register_operand" "w")
+ (match_operand:SI 2 "immediate_operand" "i")]
+ QABSNEG))]
+ "TARGET_NEON"
+ "vq<absneg>.<V_s_elem>\t%<V_reg>0, %<V_reg>1"
+ [(set_attr "neon_type" "neon_vqneg_vqabs")]
+)
+
+@end smallexample
+
+This is equivalent to:
+
+@smallexample
+(define_insn "neon_vqabs<mode>"
+ [(set (match_operand:VDQIW 0 "s_register_operand" "=w")
+ (unspec:VDQIW [(match_operand:VDQIW 1 "s_register_operand" "w")
+ (match_operand:SI 2 "immediate_operand" "i")]
+ UNSPEC_VQABS))]
+ "TARGET_NEON"
+ "vqabs.<V_s_elem>\t%<V_reg>0, %<V_reg>1"
+ [(set_attr "neon_type" "neon_vqneg_vqabs")]
+)
+
+(define_insn "neon_vqneg<mode>"
+ [(set (match_operand:VDQIW 0 "s_register_operand" "=w")
+ (unspec:VDQIW [(match_operand:VDQIW 1 "s_register_operand" "w")
+ (match_operand:SI 2 "immediate_operand" "i")]
+ UNSPEC_VQNEG))]
+ "TARGET_NEON"
+ "vqneg.<V_s_elem>\t%<V_reg>0, %<V_reg>1"
+ [(set_attr "neon_type" "neon_vqneg_vqabs")]
+)
+
+@end smallexample
+
@end ifset
--- a/src/gcc/doc/sourcebuild.texi
+++ b/src/gcc/doc/sourcebuild.texi
@@ -1502,11 +1502,19 @@
@item arm_neon_hw
Test system supports executing NEON instructions.
+@item arm_neonv2_hw
+Test system supports executing NEON v2 instructions.
+
@item arm_neon_ok
@anchor{arm_neon_ok}
ARM Target supports @code{-mfpu=neon -mfloat-abi=softfp} or compatible
options. Some multilibs may be incompatible with these options.
+@item arm_neonv2_ok
+@anchor{arm_neon2_ok}
+ARM Target supports @code{-mfpu=neon -mfloat-abi=softfp} or compatible
+options. Some multilibs may be incompatible with these options.
+
@item arm_neon_fp16_ok
@anchor{arm_neon_fp16_ok}
ARM Target supports @code{-mfpu=neon-fp16 -mfloat-abi=softfp} or compatible
|