Commit Graph

7733 Commits

Author SHA1 Message Date
DeForest Richards edbb895b18 [Docs] Adds section for Additional Topics on Reference page
Adds a new section for Additional Topics on the Reference documentation page. Also moves Support Library topic to User Guides page.

llvm-svn: 374230
2019-10-09 21:09:09 +00:00
DeForest Richards 02d264a547 [Docs] Adds Documentation links to sidebar
Adds links to Getting Started/Tutorials, User Guides, and Reference documentation pages to sidebar. Also adds a new section for LLVM IR on the Reference documentation page.

llvm-svn: 374214
2019-10-09 20:26:13 +00:00
DeForest Richards b7538c5140 [Docs] Fixes broken sphinx build - undefined label
Removes label ref pointing to non-existent subsystem docs page.

llvm-svn: 374128
2019-10-08 22:45:20 +00:00
Clement Courbet 2cd0f28959 [llvm-exegesis] Add options to SnippetGenerator.
Summary:
This adds a `-max-configs-per-opcode` option to limit the number of
configs per opcode.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68642

llvm-svn: 374054
2019-10-08 14:30:24 +00:00
Kevin P. Neal c91f1992a6 Nope, I'm wrong. It looks like someone else removed these on purpose and
it just happened to break the bot right when I did my push. So I'm undoing
this mornings incorrect push. I've also kicked off an email to hopefully
get the bot fixed the correct way.

llvm-svn: 374049
2019-10-08 14:10:26 +00:00
Kevin P. Neal 0929e5eca2 Restore documentation that 'svn update' unexpectedly yanked out from under me.
llvm-svn: 374045
2019-10-08 13:38:42 +00:00
Joerg Sonnenberger 2b9f0b064b Fix the spelling of my name.
llvm-svn: 373980
2019-10-07 22:55:42 +00:00
Reid Kleckner f9b67b810e [X86] Add new calling convention that guarantees tail call optimization
When the target option GuaranteedTailCallOpt is specified, calls with
the fastcc calling convention will be transformed into tail calls if
they are in tail position. This diff adds a new calling convention,
tailcc, currently supported only on X86, which behaves the same way as
fastcc, except that the GuaranteedTailCallOpt flag does not need to
enabled in order to enable tail call optimization.

Patch by Dwight Guth <dwight.guth@runtimeverification.com>!

Reviewed By: lebedev.ri, paquette, rnk

Differential Revision: https://reviews.llvm.org/D67855

llvm-svn: 373976
2019-10-07 22:28:58 +00:00
Kevin P. Neal 9f4de84eb0 Fix another sphinx warning.
Differential Revision:	https://reviews.llvm.org/D64746

llvm-svn: 373909
2019-10-07 14:14:46 +00:00
Kevin P. Neal a6fc72fba9 Fix sphinx warnings.
Differential Revision:	https://reviews.llvm.org/D64746

llvm-svn: 373902
2019-10-07 13:39:56 +00:00
Kevin P. Neal 1c3d19c82d [FPEnv] Add constrained intrinsics for lrint and lround
Earlier in the year intrinsics for lrint, llrint, lround and llround were
added to llvm. The constrained versions are now implemented here.

Reviewed by:	andrew.w.kaylor, craig.topper, cameron.mcinally
Approved by:	craig.topper
Differential Revision:	https://reviews.llvm.org/D64746

llvm-svn: 373900
2019-10-07 13:20:00 +00:00
Djordje Todorovic 0c56f425a0 [llvm-locstats] Fix a typo in the documentation; NFC
llvm-svn: 373880
2019-10-07 07:31:49 +00:00
DeForest Richards 38d16c15b7 [Docs] Removes Subsystem Documentation page
Removes Subsystem Documentation page. Also moves existing topics on Subsystem Documentation page to User Guides and Reference pages.

llvm-svn: 373872
2019-10-06 22:49:22 +00:00
DeForest Richards de0e3aac2a [Docs] Removes Programming Documentation page
Removes Programming Documentation page. Also moves existing topics on Programming Documentation page to User Guides and Reference pages. 

llvm-svn: 373856
2019-10-06 16:10:11 +00:00
DeForest Richards 6d19651410 [Docs] Adds new Getting Started/Tutorials page
Adds a new page for Getting Started/Tutorials topics. Also updates existing topic categories on the User Guides and Reference pages.

llvm-svn: 373854
2019-10-06 15:36:37 +00:00
Sylvestre Ledru 68eef2bcd0 Update the FAQ: remove stuff related to the previous license +
update info about the portability of LLVM.

llvm-svn: 373576
2019-10-03 09:43:54 +00:00
Fangrui Song 671fb34358 [llvm-objcopy] Add --set-section-alignment
Fixes PR43181. This option was recently added to GNU objcopy (binutils
PR24942).

`llvm-objcopy -I binary -O elf64-x86-64 --set-section-alignment .data=8` can set the alignment of .data.

Reviewed By: grimar, jhenderson, rupprecht

Differential Revision: https://reviews.llvm.org/D67656

llvm-svn: 373461
2019-10-02 12:41:25 +00:00
Djordje Todorovic 2ef18fb41a Reland "[utils] Implement the llvm-locstats tool"
The tool reports verbose output for the DWARF debug location coverage.
The llvm-locstats for each variable or formal parameter DIE computes what
percentage from the code section bytes, where it is in scope, it has
location description. The line 0 shows the number (and the percentage) of
DIEs with no location information, but the line 100 shows the number (and
the percentage) of DIEs where there is location information in all code
section bytes (where the variable or parameter is in the scope). The line
50..59 shows the number (and the percentage) of DIEs where the location
information is in between 50 and 59 percentage of its scope covered.

Differential Revision: https://reviews.llvm.org/D66526

The cause of the test failure was resolved.

llvm-svn: 373427
2019-10-02 07:00:01 +00:00
Vedant Kumar a1e7efaaa8 [ReleaseProcess] Document requirement to set MACOSX_DEPLOYMENT_TARGET
llvm-svn: 373356
2019-10-01 17:10:45 +00:00
Djordje Todorovic 372048e908 Revert "Reland "[utils] Implement the llvm-locstats tool""
This reverts commit rL373317 due to test failure on the
clang-s390x-linux build bot.

llvm-svn: 373336
2019-10-01 13:21:15 +00:00
Djordje Todorovic 6d7f7e6792 Reland "[utils] Implement the llvm-locstats tool"
The tool reports verbose output for the DWARF debug location coverage.
The llvm-locstats for each variable or formal parameter DIE computes what
percentage from the code section bytes, where it is in scope, it has
location description. The line 0 shows the number (and the percentage) of
DIEs with no location information, but the line 100 shows the number (and
the percentage) of DIEs where there is location information in all code
section bytes (where the variable or parameter is in the scope). The line
50..59 shows the number (and the percentage) of DIEs where the location
information is in between 50 and 59 percentage of its scope covered.

Differential Revision: https://reviews.llvm.org/D66526

llvm-svn: 373317
2019-10-01 09:59:15 +00:00
Fangrui Song 2d92c8844e [llvm-readobj/llvm-readelf] Delete --arm-attributes (alias for --arch-specific)
D68110 added --arch-specific (supported by GNU readelf) and made
--arm-attributes an alias for it. The tests were later migrated to use
--arch-specific.

Note, llvm-readelf --arch-specific currently just uses llvm-readobj
style output for ARM attributes. The readelf-style output is not
implemented.

Reviewed By: compnerd, kongyi, rupprecht

Differential Revision: https://reviews.llvm.org/D68196

llvm-svn: 373291
2019-10-01 01:31:15 +00:00
Pablo Barrio ffac4e8603 Fix doc for t inline asm constraints for ARM/Thumb
Summary: The constraint goes up to regs d15 and q7, not d16 and q8.

Subscribers: kristof.beyls, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68090

llvm-svn: 373228
2019-09-30 16:55:10 +00:00
Kevin P. Neal 71c5b38acd Fix breakage of sphinx builders. Sorry for leaving this broken over the
weekend!

llvm-svn: 373215
2019-09-30 14:51:59 +00:00
Djordje Todorovic 8180f3b1cc Revert "Reland "[utils] Implement the llvm-locstats tool""
This reverts commit rL373183.

llvm-svn: 373200
2019-09-30 11:19:11 +00:00
Djordje Todorovic 0f30960619 Reland "[utils] Implement the llvm-locstats tool"
The tool reports verbose output for the DWARF debug location coverage.
The llvm-locstats for each variable or formal parameter DIE computes what
percentage from the code section bytes, where it is in scope, it has
location description. The line 0 shows the number (and the percentage) of
DIEs with no location information, but the line 100 shows the number (and
the percentage) of DIEs where there is location information in all code
section bytes (where the variable or parameter is in the scope). The line
50..59 shows the number (and the percentage) of DIEs where the location
information is in between 50 and 59 percentage of its scope covered.

Differential Revision: https://reviews.llvm.org/D66526

llvm-svn: 373183
2019-09-30 07:35:17 +00:00
DeForest Richards eb78dea4cc [Docs] Moves article links to new pages
Moves existing article links on the Programming, Subsystem, and Reference documentation pages to new locations. Also moves Github Repository and Publications links to the sidebar.

llvm-svn: 373169
2019-09-29 15:31:52 +00:00
DeForest Richards ac5969933a [Docs] Adds sections for Command Line and LibFuzzer articles
Adds sections for Command Line and Libfuzzer articles on Programming Documentation page.

llvm-svn: 373158
2019-09-29 02:16:38 +00:00
DeForest Richards 2605f8c461 [Docs] Adds new section to User Guides page
Adds a section to the User Guides page for articles related to building, packaging, and distributing LLVM. Includes sub-sections for CMake, Clang, and Docker.

llvm-svn: 373113
2019-09-27 19:12:00 +00:00
Kevin P. Neal 875d20bcde Document requirement of function attributes with constrained floating
point.

Reviewed by:    andrew.w.kaylor, uweigand, efriedma
Approved by:    andrew.w.kaylor
Differential Revision:  https://reviews.llvm.org/D67839

llvm-svn: 373002
2019-09-26 17:50:25 +00:00
Nick Desaulniers 93d87260f1 [Verifier] add invariant check for callbr
Summary:
The list of indirect labels should ALWAYS have their blockaddresses as
argument operands to the callbr (but not necessarily the other way
around).  Add an invariant that checks this.

The verifier catches a bad test case that was added recently in r368478.
I think that was a simple mistake, and the test was made less strict in
regards to the precise addresses (as those weren't specifically the
point of the test).

This invariant will be used to find a reported bug.

Link: https://www.spinics.net/lists/arm-kernel/msg753473.html
Link: https://github.com/ClangBuiltLinux/linux/issues/649

Reviewers: craig.topper, void, chandlerc

Reviewed By: void

Subscribers: ychen, lebedev.ri, javed.absar, kristof.beyls, hiraditya, llvm-commits, srhines

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67196

llvm-svn: 372923
2019-09-25 22:28:27 +00:00
Florian Hahn 6b3749f696 [LangRef] Clarify absence of rounding guarantees for fmuladd.
During the review of D67434, it was recommended to make fmuladd's
behavior more explicit. D67434 depends on this interpretation.

Reviewers: efriedma, jfb, reames, scanon, lebedev.ri, spatel

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D67552

llvm-svn: 372892
2019-09-25 16:09:24 +00:00
Sanjay Patel 6d4ea22e70 [IR] allow fast-math-flags on phi of FP values (2nd try)
The changes here are based on the corresponding diffs for allowing FMF on 'select':
D61917 <https://reviews.llvm.org/D61917>

As discussed there, we want to have fast-math-flags be a property of an FP value
because the alternative (having them on things like fcmp) leads to logical
inconsistency such as:
https://bugs.llvm.org/show_bug.cgi?id=38086

The earlier patch for select made almost no practical difference because most
unoptimized conditional code begins life as a phi (based on what I see in clang).
Similarly, I don't expect this patch to do much on its own either because
SimplifyCFG promptly drops the flags when converting to select on a minimal
example like:
https://bugs.llvm.org/show_bug.cgi?id=39535

But once we have this plumbing in place, we should be able to wire up the FMF
propagation and start solving cases like that.

The change to RecurrenceDescriptor::AddReductionVar() is required to prevent a
regression in a LoopVectorize test. We are intersecting the FMF of any
FPMathOperator there, so if a phi is not properly annotated, new math
instructions may not be either. Once we fix the propagation in SimplifyCFG, it
may be safe to remove that hack.

Differential Revision: https://reviews.llvm.org/D67564

llvm-svn: 372878
2019-09-25 14:35:02 +00:00
Sanjay Patel 2cec4b58f5 Revert [IR] allow fast-math-flags on phi of FP values
This reverts r372866 (git commit dec03223a9)

llvm-svn: 372868
2019-09-25 13:29:09 +00:00
Sanjay Patel dec03223a9 [IR] allow fast-math-flags on phi of FP values
The changes here are based on the corresponding diffs for allowing FMF on 'select':
D61917

As discussed there, we want to have fast-math-flags be a property of an FP value
because the alternative (having them on things like fcmp) leads to logical
inconsistency such as:
https://bugs.llvm.org/show_bug.cgi?id=38086

The earlier patch for select made almost no practical difference because most
unoptimized conditional code begins life as a phi (based on what I see in clang).
Similarly, I don't expect this patch to do much on its own either because
SimplifyCFG promptly drops the flags when converting to select on a minimal
example like:
https://bugs.llvm.org/show_bug.cgi?id=39535

But once we have this plumbing in place, we should be able to wire up the FMF
propagation and start solving cases like that.

The change to RecurrenceDescriptor::AddReductionVar() is required to prevent a
regression in a LoopVectorize test. We are intersecting the FMF of any
FPMathOperator there, so if a phi is not properly annotated, new math
instructions may not be either. Once we fix the propagation in SimplifyCFG, it
may be safe to remove that hack.

Differential Revision: https://reviews.llvm.org/D67564

llvm-svn: 372866
2019-09-25 13:14:12 +00:00
James Henderson 12e3099921 [docs][llvm-strings] Clarify "printable character" wording
The --bytes option uses the phrase "printable ASCII characters", but the
description section used simply "printable characters". To avoid any
confusion about locale impacts etc, this change adopts the former's
phrasing in both places. It also fixes a minor grammar issue in the
description.

Reviewed by: MaskRay

Differential Revision: https://reviews.llvm.org/D68016

llvm-svn: 372865
2019-09-25 13:09:17 +00:00
James Henderson 4dd9b2faec [docs][llvm-strip] Update llvm-strip doc to better match llvm-objcopy's
Main changes are mostly wording of some options, but this change also
fixes a switch reference so that a link is created and moves
--strip-sections into the ELF-specific area since it is only supported
for ELF currently.

llvm-svn: 372864
2019-09-25 13:09:12 +00:00
Dmitry Preobrazhensky b9683d3c53 [AMDGPU][MC][DOC] Updated AMD GPU assembler description.
Summary of changes:
- Updated to reflect recent changes in assembler;
- Minor bugfixing and improvements.

llvm-svn: 372857
2019-09-25 12:38:35 +00:00
DeForest Richards ccf6030f7a [Docs] Moves Reference docs to new page
Moves Reference docs to new page. Also adds a table of contents to Getting Involved page.

llvm-svn: 372796
2019-09-25 00:49:02 +00:00
James Henderson 1b103864ee [docs][llvm-strip][llvm-objcopy] Improve wording and fix highlighting
llvm-svn: 372754
2019-09-24 13:41:39 +00:00
James Henderson eefbc358eb [docs][llvm-size] Fix typo
llvm-svn: 372750
2019-09-24 13:14:22 +00:00
Djordje Todorovic ead96d73ac Revert "Reland "[utils] Implement the llvm-locstats tool""
This reverts commit rL372554.

llvm-svn: 372580
2019-09-23 11:04:11 +00:00
Djordje Todorovic 0e490ae0a9 Reland "[utils] Implement the llvm-locstats tool"
The tool reports verbose output for the DWARF debug location coverage.
The llvm-locstats for each variable or formal parameter DIE computes what
percentage from the code section bytes, where it is in scope, it has
location description. The line 0 shows the number (and the percentage) of
DIEs with no location information, but the line 100 shows the number (and
the percentage) of DIEs where there is location information in all code
section bytes (where the variable or parameter is in the scope). The line
50..59 shows the number (and the percentage) of DIEs where the location
information is in between 50 and 59 percentage of its scope covered.

Differential Revision: https://reviews.llvm.org/D66526

llvm-svn: 372554
2019-09-23 07:57:53 +00:00
DeForest Richards 4f86528fc1 [Docs] Updates sidebar links
Adds sidebar links to mailing lists, IRC, and meetups and social events.

llvm-svn: 372488
2019-09-21 21:05:20 +00:00
DeForest Richards c1b0873d42 [Docs] Adds new page for Getting Involved articles
Adds a new page for existing Getting Involved, Development Process, and Community Proposals articles. Also moves Mailing Lists, Meetups and social events, and IRC sections.

llvm-svn: 372487
2019-09-21 20:56:40 +00:00
DeForest Richards e75c6b6d48 [Docs] Bug fix for document not included in toctree
Fixes 'document not included in toctree' bug for FAQ and Lexicon topics.

llvm-svn: 372470
2019-09-21 14:29:19 +00:00
DeForest Richards 75d2c26921 [Docs] Updates sidebar links
Adds additional links to sidebar. Also removes Glossary and FAQ from LLVM Design & Overview section. (These links now reside on the sidebar.)

llvm-svn: 372469
2019-09-21 14:17:09 +00:00
DeForest Richards eacbe1cccc [Docs] Add a custom sidebar to doc pages
Adds a custom sidebar to LLVM docs. Sidebar includes links to How to submit a bug and FAQ topics, as well as a Show Source link and search box.

llvm-svn: 372432
2019-09-20 22:16:39 +00:00
DeForest Richards 01a3080960 [Docs] Move topics to new categories
This commit moves several topics to new categories. 

llvm-svn: 372428
2019-09-20 20:51:33 +00:00
Matt Morehouse 949a126438 [docs] Update structure-aware-fuzzing link.
The document has been moved to the google/fuzzing GitHub repo.

llvm-svn: 372423
2019-09-20 19:39:50 +00:00