Commit Graph

8741 Commits

Author SHA1 Message Date
Pooja Yadav 4763c8c9e3 [docs] Added llvm/cmake section
Added information about the cmake inside llvm.

Reviewed By: xgupta, jroelofs

Differential Revision: https://reviews.llvm.org/D101925
2021-05-14 14:10:56 +05:30
Arthur Eubanks 2155dc51d7 [IR] Introduce the opaque pointer type
The opaque pointer type is essentially just a normal pointer type with a
null pointee type.

This also adds support for the opaque pointer type to the bitcode
reader/writer, as well as to textual IR.

To avoid confusion with existing pointer types, we disallow creating a
pointer to an opaque pointer.

Opaque pointer types should not be widely used at this point since many
parts of LLVM still do not support them. The next steps are to add some
very simple use cases of opaque pointers to make sure they work, then
start pretending that all pointers are opaque pointers and see what
breaks.

https://lists.llvm.org/pipermail/llvm-dev/2021-May/150359.html

Reviewed By: dblaikie, dexonsmith, pcc

Differential Revision: https://reviews.llvm.org/D101704
2021-05-13 15:22:27 -07:00
Arthur Eubanks 772bdef6af [docs] Add page on opaque pointer types
Reviewed By: dblaikie, dexonsmith

Differential Revision: https://reviews.llvm.org/D102292
2021-05-13 15:10:27 -07:00
Martin Storsjö b42fb6811e [llvm-nm] Support the -V option, print that the tool is compatible with GNU nm
This unlocks some codepaths in libtool.

Differential Revision: https://reviews.llvm.org/D102321
2021-05-13 22:36:25 +03:00
Aakanksha Patil 464e4dc50f [AMDGPU] Add gfx1034 target
Differential Revision: https://reviews.llvm.org/D102306
2021-05-13 14:25:18 -04:00
Krzysztof Parzyszek 2b20dee59b Fix section title underlining in the release notes 2021-05-13 08:37:06 -05:00
Krzysztof Parzyszek 4dea348731 Add entry about Hexagon V68 support to the release notes 2021-05-13 08:28:55 -05:00
Shoaib Meenai 56f7e5a822 [cmake] Add support for multiple distributions
LLVM's build system contains support for configuring a distribution, but
it can often be useful to be able to configure multiple distributions
(e.g. if you want separate distributions for the tools and the
libraries). Add this support to the build system, along with
documentation and usage examples.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D89177
2021-05-12 11:13:18 -07:00
Tony Tye d6a228cba4 [NFC][AMDGPU] Correct product name for gfx908
The product name for gfx908 is "AMD Instinct MI100 Accelerator".

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D102209
2021-05-11 15:17:04 +00:00
Alex Orlov 05d1ae4e18 * Add support for JSON output style to llvm-symbolizer
This patch adds JSON output style to llvm-symbolizer to better support CLI automation by providing a machine readable output.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D96883
2021-05-11 13:10:54 +04:00
Arthur Eubanks 16748bd2fb [TargetLowering] Only inspect attributes in the arguments for ArgListEntry
Parameter attributes are considered part of the function [1], and like
mismatched calling conventions [2], we can't have the verifier check for
mismatched parameter attributes.

[1] https://llvm.org/docs/LangRef.html#parameter-attributes
[2] https://llvm.org/docs/FAQ.html#why-does-instcombine-simplifycfg-turn-a-call-to-a-function-with-a-mismatched-calling-convention-into-unreachable-why-not-make-the-verifier-reject-it

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D101806
2021-05-10 12:35:11 -07:00
gbreynoo 2aa5f9b45a [llvm-symbolizer] Update Command Guide
The option --use-symbol-table is now a noop and does not appear in the
help text, however it still appears in the command guide. This change
removes it from the command guide and updates the description of
--output-style .

Differential Revision: https://reviews.llvm.org/D102078
2021-05-10 17:21:34 +01:00
Fraser Cormack 2e0ee68dc8 [LangRef][VP] Fix typos in VP sdiv/udiv examples 2021-05-06 16:37:18 +01:00
Matt Arsenault e723b511e6 GlobalISel: Update documentation 2021-05-05 17:35:02 -04:00
Pooja Yadav 0b9447157b [docs] Update the llvm/example section
Added details about the llvm/example section.

Reviewed By: xgupta

Differential Revision: https://reviews.llvm.org/D101284
2021-05-05 21:33:14 +05:30
Sushma Unnibhavi e4eec51937 [DOCS] Added example for G_EXTRACT and G_INSERT
Reviewed By: xgupta, gargaroff

Differential Revision: https://reviews.llvm.org/D101227
2021-05-05 15:47:35 +05:30
Fangrui Song e510860656 [llvm-objdump] Add -M {att,intel} & deprecate --x86-asm-syntax={att,intel}
The internal `cl::opt` option --x86-asm-syntax sets the AsmParser and AsmWriter
dialect. The option is used by llc and llvm-mc tests to set the AsmWriter dialect.

This patch adds -M {att,intel} as GNU objdump compatible aliases (PR43413).

Note: the dialect is initialized when the MCAsmInfo is constructed.
`MCInstPrinter::applyTargetSpecificCLOption` is called too late and its MCAsmInfo
reference is const, so changing the `cl::opt` in
`MCInstPrinter::applyTargetSpecificCLOption` is not an option, at least without
large amount of refactoring.

Reviewed By: hoy, jhenderson, thakis

Differential Revision: https://reviews.llvm.org/D101695
2021-05-05 00:20:41 -07:00
Alina Sbirlea b14c8f5f6e Add cal entry for MemorySSA syncs. 2021-05-04 12:56:06 -07:00
Alina Sbirlea 974ff623aa Add monthly MemorySSA sync. 2021-05-04 11:23:36 -07:00
Arthur Eubanks 0172b1389e [docs] Fix some wording 2021-05-04 10:21:38 -07:00
gbreynoo 3273f27692 [llvm-objdump] Remove --cfg option from command guide
The llvm-objdump command guide has the option --cfg which was removed
from the tool by 888320e9fa in 2014. This
change updates the command guide to reflect this.

Differential Revision: https://reviews.llvm.org/D101648
2021-05-04 16:42:13 +01:00
Fraser Cormack 2d480abd9a [LangRef] Fix a typo in the vector-type memory layout section 2021-05-04 15:40:53 +01:00
Arthur Eubanks 9779b664b6 [docs][NewPM] Add section on analyses
Reviewed By: asbirlea, ychen

Differential Revision: https://reviews.llvm.org/D100912
2021-05-03 10:15:02 -07:00
Christian Kühnel 91607dce61 [doc] typo fixes
as proposed by @FlashSheridan in
https://reviews.llvm.org/rG7f9717b922d4
2021-05-03 10:59:51 +02:00
Nick Desaulniers dde24a87c5 [llvm-objdump] add -v alias for --version
Used by the Linux kernel's CONFIG_X86_DECODER_SELFTEST.

Link: https://github.com/ClangBuiltLinux/linux/issues/1130

Reviewed By: MaskRay, jhenderson, rupprecht

Differential Revision: https://reviews.llvm.org/D101483
2021-04-30 11:26:36 -07:00
Pooja Yadav cfb95f6f91 [docs]Added llvm/bindings section
Added information about language bindings provided by LLVM.

Reviewed By: xgupta, gandhi21299

Differential Revision: https://reviews.llvm.org/D101295
2021-04-30 19:05:22 +05:30
Jonas Devlieghere 625bd94c6d [dsymutil] Add flag to force a static variable to keep its enclosing function
Add a flag to change dsymutil's behavior and force a static variable to
keep its enclosing function. The test shows a situation where that could
be useful. I'm not convinced this behavior makes sense as a default,
which is why it's behind a flag.

rdar://74918374

Differential revision: https://reviews.llvm.org/D101337
2021-04-28 11:33:04 -07:00
Paul C. Anagnostopoulos 952c6ddd8b [TableGen] Add the !find bang operator
!find searches a source string for a target string and returns the position.

Differential Revision: https://reviews.llvm.org/D101318
2021-04-28 09:51:00 -04:00
Ahmed Bougacha 6a2e298517 [docs] Replace Apple representative to security group.
Differential Revision: https://reviews.llvm.org/D100864
2021-04-27 11:00:49 -07:00
Christian Kühnel 4dc6763289 [doc] added documentation for pre-merge testing
fixes https://github.com/google/llvm-premerge-checks/issues/275

Differential Revision: https://reviews.llvm.org/D100936
2021-04-27 16:53:16 +02:00
Pooja Yadav 0764c8af76 [Docs] Updated LLVM_TARGETS_TO_BUILD section in GettingStarted.rst
Updated LLVM_TARGETS_TO_BUILD  under https://llvm.org/docs/GettingStarted.html#local-llvm-configuration.

Differential Revision: https://reviews.llvm.org/D101101
2021-04-24 00:31:43 +05:30
Paul C. Anagnostopoulos d9187f50b9 [TableGen] [docs] Improve BNF for the 'multiclass' statement [NFC] 2021-04-23 12:05:52 -04:00
Paul C. Anagnostopoulos 6a067cdb06 [TableGen] [docs] Improve description of NAME in Programmer's Reference
Also use "parent class" consistently and add a note about the term.

Differential Revision: https://reviews.llvm.org/D100867
2021-04-23 09:49:17 -04:00
Thomas Preud'homme 2fdedf905a [doc] Clarify constrained fcmps behavior
Reviewed By: uweigand

Differential Revision: https://reviews.llvm.org/D101053
2021-04-23 11:55:20 +01:00
Fangrui Song 2786e673c7 [IR][sanitizer] Add module flag "frame-pointer" and set it for cc1 -mframe-pointer={non-leaf,all}
The Linux kernel objtool diagnostic `call without frame pointer save/setup`
arise in multiple instrumentation passes (asan/tsan/gcov). With the mechanism
introduced in D100251, it's trivial to respect the command line
-m[no-]omit-leaf-frame-pointer/-f[no-]omit-frame-pointer, so let's do it.

Fix: https://github.com/ClangBuiltLinux/linux/issues/1236 (tsan)
Fix: https://github.com/ClangBuiltLinux/linux/issues/1238 (asan)

Also document the function attribute "frame-pointer" which is long overdue.

Differential Revision: https://reviews.llvm.org/D101016
2021-04-22 18:07:30 -07:00
Keith Smiley 86b98c60c5 llvm-objdump: add --rpaths to macho support
This prints the rpaths for the given binary

Reviewed By: kastiglione

Differential Revision: https://reviews.llvm.org/D100681
2021-04-22 16:01:10 -07:00
Evgeniy Brevnov b9e9e2eef1 Wordsmith the semantics of invariant.load
Don't phrase the semantics in terms of the optimizer.  Instead have a
more straightforward execution based semantic.

Reviewed By: ebrevnov

Differential Revision: https://reviews.llvm.org/D63439
2021-04-22 10:06:13 +07:00
Christian Kühnel cf61cf0724 [NFC] fixed link in documentation 2021-04-21 10:17:03 +02:00
Christian Kühnel 7f9717b922 added section on CI system
Add documentation for working with the CI systems.

This is based on the discussion in the Infrastructure Working Group:
https://github.com/ChristianKuehnel/iwg-workspace/issues/37

Differential Revision: https://reviews.llvm.org/D97389
2021-04-21 09:59:41 +02:00
David Sherwood eecb4b478f [Docs] Fix formatting issue for llvm.experimental.stepvector in LangRef
The llvm.experimental.stepvector section was missing the '^^^' line
underneath the intrinsic name.
2021-04-21 08:42:40 +01:00
Nico Weber 1a3f88658a [llvm-objdump] Add an llvm-otool tool
This implements an LLVM tool that's flag- and output-compatible
with macOS's `otool` -- except for bugs, but from testing with both
`otool` and `xcrun otool-classic`, llvm-otool matches vanilla
otool's behavior very well already. It's not 100% perfect, but
it's a very solid start.

This uses the same approach as llvm-objcopy: llvm-objdump uses
a different OptTable when it's invoked as llvm-otool. This
is possible thanks to D100433.

Differential Revision: https://reviews.llvm.org/D100583
2021-04-20 08:24:58 -04:00
Luo, Yuanke 519cf6e807 [X86][AMX] Add description of x86_amx to LangRef.
Differential Revision: https://reviews.llvm.org/D100032
2021-04-20 14:29:17 +08:00
xgupta a637b8eac0 [Docs] Mention LLVM_EXPERIMENTAL_TARGETS_TO_BUILD variable in CMake.rst
Beginners might not aware of this variable and wanted to try a new experimental target.

Although this variable mention in Writing a Backend Documentation. But it becomes easy to search when listed in cmake.rst doc where most variables are listed.

Reviewed By: myhsu

Differential Revision: https://reviews.llvm.org/D100729
2021-04-20 09:27:57 +05:30
Paul C. Anagnostopoulos a5aaec8f4e [TableGen] Add support for the 'assert' statement in multiclasses
This is step 3 of adding the 'assert' statement.

Differential Revision: https://reviews.llvm.org/D99751
2021-04-19 09:01:42 -04:00
xgupta 2cb8ec8f38 [Docs] Correct Boehm collector weblink in GarbageCollection.rst 2021-04-18 17:30:17 +05:30
Philip Reames ff55d01a8e [nofree] Restrict semantics to memory visible to caller
This patch clarifies the semantics of the nofree function attribute to make clear that it provides an "as if" semantic. That is, a nofree function is guaranteed not to free memory which existed before the call, but might allocate and then deallocate that same memory within the lifetime of the callee.

This is the result of the discussion on llvm-dev under the thread "Ambiguity in the nofree function attribute".

The most important part of this change is the LangRef wording. The rest is minor comment changes to emphasize the new semantics where code was accidentally consistent, and fix one place which wasn't consistent. That one place is currently narrowly used as it is primarily part of the ongoing (and not yet enabled) deref-at-point semantics work.

Differential Revision: https://reviews.llvm.org/D100141
2021-04-16 11:38:55 -07:00
Kristof Beyls a7bbd670aa [docs] Add Pointer Authentication call info 2021-04-16 15:18:21 +02:00
Simon Moll fda078bffb [docs] Add vector predication call
Add the syncup call to the table

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D100474
2021-04-16 10:49:34 +02:00
Juneyoung Lee 085423282d [LangRef] formatting 2021-04-16 10:41:30 +09:00
Juneyoung Lee 25e96dffac [LangRef] fix unexepcted unindent errror 2021-04-16 09:58:55 +09:00