platform/upstream/llvm.git
23 months ago[Hexagon] Remove unused declaration SelectZeroExtend (NFC)
Kazu Hirata [Sun, 24 Jul 2022 21:48:08 +0000 (14:48 -0700)]
[Hexagon] Remove unused declaration SelectZeroExtend (NFC)

The corresponding definition was removed on Jan 23, 2018 in commit
3780a0e1fae463e9195ae3fc2ba8424608310d8a.

23 months ago[IPO] Use range-based for loops (NFC)
Kazu Hirata [Sun, 24 Jul 2022 21:48:06 +0000 (14:48 -0700)]
[IPO] Use range-based for loops (NFC)

23 months ago[ValueTracking] allow vector types in isImpliedCondition()
Sanjay Patel [Sun, 24 Jul 2022 21:05:40 +0000 (17:05 -0400)]
[ValueTracking] allow vector types in isImpliedCondition()

The matching of constants assumed integers, but we can handle
splat vector constants seamlessly with m_APInt.

23 months ago[ValueTracking] add test for isImpliedCondition with vector types; NFC
Sanjay Patel [Sun, 24 Jul 2022 20:58:04 +0000 (16:58 -0400)]
[ValueTracking] add test for isImpliedCondition with vector types; NFC

23 months ago[PhaseOrdering] add explanatory comment for test; NFC
Sanjay Patel [Fri, 22 Jul 2022 20:09:29 +0000 (16:09 -0400)]
[PhaseOrdering] add explanatory comment for test; NFC

This note was going to be added in D129650, but we
solved the problem by reverting another patch, and
I missed transferring the comment.

23 months ago[gn build] Port b7aa9c4ac8e7
LLVM GN Syncbot [Sun, 24 Jul 2022 20:22:32 +0000 (20:22 +0000)]
[gn build] Port b7aa9c4ac8e7

23 months ago[libc++] Granularize some more type_traits
Nikolas Klauser [Sun, 24 Jul 2022 14:03:12 +0000 (16:03 +0200)]
[libc++] Granularize some more type_traits

Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D128948

23 months ago[CodeGen] Remove a redundant void (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:14 +0000 (12:27 -0700)]
[CodeGen] Remove a redundant void (NFC)

Identified with modernize-redundant-void-arg.

23 months ago[ExecutionEngine] Fix a header guard (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:12 +0000 (12:27 -0700)]
[ExecutionEngine] Fix a header guard (NFC)

Identified with llvm-header-guard.

23 months agoRemove redundant string initialization (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:11 +0000 (12:27 -0700)]
Remove redundant string initialization (NFC)

Identified with readability-redundant-string-init.

23 months ago[lldb] Remove redundant member initialization (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:09 +0000 (12:27 -0700)]
[lldb] Remove redundant member initialization (NFC)

Identified with readability-redundant-member-init.

23 months ago[lldb] Use nullptr instead of NULL (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:08 +0000 (12:27 -0700)]
[lldb] Use nullptr instead of NULL (NFC)

Identified with modernize-use-nullptr.

23 months ago[lldb] Use true instead of 0 (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:06 +0000 (12:27 -0700)]
[lldb] Use true instead of 0 (NFC)

Identified with modernize-use-bool-literals.

23 months ago[llvm] Remove unused forward declarations (NFC)
Kazu Hirata [Sun, 24 Jul 2022 19:27:05 +0000 (12:27 -0700)]
[llvm] Remove unused forward declarations (NFC)

23 months ago[ELF] Optimize some non-constant alignTo with alignToPowerOf2. NFC
Fangrui Song [Sun, 24 Jul 2022 18:20:49 +0000 (11:20 -0700)]
[ELF] Optimize some non-constant alignTo with alignToPowerOf2. NFC

My x86-64 lld executable is 2KiB smaller. .eh_frame writing gets faster as there
were lots of divisions.

23 months ago[gn build] Port 46ae26e7eb70
LLVM GN Syncbot [Sun, 24 Jul 2022 17:43:27 +0000 (17:43 +0000)]
[gn build] Port 46ae26e7eb70

23 months ago[Driver] Enable some sanitizers on FreeBSD AArch64
Andrew Turner [Sun, 24 Jul 2022 17:41:21 +0000 (10:41 -0700)]
[Driver] Enable some sanitizers on FreeBSD AArch64

They have been ported and tested to work on AArch64
(see D125883, D125758, and D125873).

Reviewed By: dim, MaskRay

Differential Revision: https://reviews.llvm.org/D130063

23 months ago[clang-tidy] implement new check 'misc-const-correctness' to add 'const' to unmodifie...
Jonas Toth [Sun, 24 Jul 2022 17:35:52 +0000 (19:35 +0200)]
[clang-tidy] implement new check 'misc-const-correctness' to add 'const' to unmodified variables

This patch connects the check for const-correctness with the new general
utility to add `const` to variables.
The code-transformation is only done, if the detected variable for const-ness
is not part of a group-declaration.

The check allows to control multiple facets of adding `const`, e.g. if pointers themself should be
marked as `const` if they are not changed.

Reviewed By: njames93

Differential Revision: https://reviews.llvm.org/D54943

23 months ago[compiler-rt][CMake] Enable TF intrinsics on powerpc32 Linux
Khem Raj [Sun, 24 Jul 2022 17:17:22 +0000 (10:17 -0700)]
[compiler-rt][CMake] Enable TF intrinsics on powerpc32 Linux

clang generates calls to these intrinsics when used for ppc32/linux, when using libgcc this works ok but when using compiler-rt for rtlib it fails with missing intrinsic symbols. also see [1]

[1] https://lists.llvm.org/pipermail/llvm-dev/2014-May/072784.html

Reviewed By: MaskRay, glaubitz

Differential Revision: https://reviews.llvm.org/D121379

23 months ago[X86] Autogenerate atomic tests. NFC
Amaury Séchet [Sun, 24 Jul 2022 16:38:58 +0000 (16:38 +0000)]
[X86] Autogenerate atomic tests. NFC

23 months agoRegAllocGreedy: Fix subranges when rematerializing dead subreg defs
Matt Arsenault [Wed, 15 Jun 2022 01:18:21 +0000 (21:18 -0400)]
RegAllocGreedy: Fix subranges when rematerializing dead subreg defs

This would create a new interval missing the subrange and hit this
verifier error:

*** Bad machine code: Live interval for subreg operand has no subranges ***
- function:    test_remat_subreg_def
- basic block: %bb.0  (0xa568758) [0B;128B)
- instruction: 32B dead undef %4.sub0:vreg_64 = V_MOV_B32_e32 2, implicit $exec

23 months ago[X86] Autogenerate cfguard-x86-64-vectorcall.ll. NFC
Amaury Séchet [Sun, 24 Jul 2022 15:45:51 +0000 (15:45 +0000)]
[X86] Autogenerate cfguard-x86-64-vectorcall.ll. NFC

23 months agoAMDGPU: Fix broken test checks
Matt Arsenault [Sat, 23 Jul 2022 19:07:03 +0000 (15:07 -0400)]
AMDGPU: Fix broken test checks

23 months ago[DAG] visitSMUL_LOHI/visitUMUL_LOHI - ensure we canonicalize constants to the RHS
Simon Pilgrim [Sun, 24 Jul 2022 15:09:52 +0000 (16:09 +0100)]
[DAG] visitSMUL_LOHI/visitUMUL_LOHI - ensure we canonicalize constants to the RHS

23 months ago[X86] Autogenerate some of the fp128 tests. NFC
Amaury Séchet [Sun, 24 Jul 2022 14:32:36 +0000 (14:32 +0000)]
[X86] Autogenerate some of the fp128 tests. NFC

23 months ago[DAG] getNode - assert that SMUL_LOHI/UMUL_LOHI nodes have the correct ops + types
Simon Pilgrim [Sun, 24 Jul 2022 14:23:13 +0000 (15:23 +0100)]
[DAG] getNode - assert that SMUL_LOHI/UMUL_LOHI nodes have the correct ops + types

23 months ago[X86] Regenerate hoist-and-by-const-from-lshr-in-eqcmp-zero.ll with common SSE2 prefix
Simon Pilgrim [Sun, 24 Jul 2022 13:48:18 +0000 (14:48 +0100)]
[X86] Regenerate hoist-and-by-const-from-lshr-in-eqcmp-zero.ll with common SSE2 prefix

23 months ago[Clang] Add missing paper revisions in the release notes [NFC]
Corentin Jabot [Sun, 24 Jul 2022 14:24:11 +0000 (16:24 +0200)]
[Clang] Add missing paper revisions in the release notes [NFC]

23 months ago[clang] Fix incorrect constant folding of `if consteval`
Corentin Jabot [Sun, 24 Jul 2022 06:55:49 +0000 (08:55 +0200)]
[clang] Fix incorrect constant folding of `if consteval`

Fixes https://github.com/llvm/llvm-project/issues/55638.

`if consteval` was evaluated incorrectly when in a
non-constant context that could be constant-folded.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D130437

23 months ago[Clang] De-deprecate volatile compound operations
Corentin Jabot [Sat, 23 Jul 2022 12:38:48 +0000 (14:38 +0200)]
[Clang] De-deprecate volatile compound operations

As per P2327R1,

|=, &= and ^= are no longer deprecated in all languages mode.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D130421

23 months agoFix crash in ObjC codegen introduced with 5ab6ee75994d645725264e757d67bbb1c96fb2b6
David Chisnall [Sun, 24 Jul 2022 10:56:12 +0000 (11:56 +0100)]
Fix crash in ObjC codegen introduced with 5ab6ee75994d645725264e757d67bbb1c96fb2b6

5ab6ee75994d645725264e757d67bbb1c96fb2b6 assumed that if `RValue::isScalar()` returns true then `RValue::getScalarVal` will return a valid value.  This is not the case when the return value is `void` and so void message returns would crash if they hit this path.  This is triggered only for cases where the nil-handling path needs to do something non-trivial (destroy arguments that should be consumed by the callee).

Reviewed By: triplef

Differential Revision: https://reviews.llvm.org/D123898

23 months ago[DAG] MaskedVectorIsZero - don't bother with (-1).isSubsetOf mask check. NFC.
Simon Pilgrim [Sun, 24 Jul 2022 12:12:21 +0000 (13:12 +0100)]
[DAG] MaskedVectorIsZero - don't bother with (-1).isSubsetOf mask check. NFC.

Just use KnownBits::isZero() to ensure all the bits are known zero.

23 months ago[DAG] SimplifyMultipleUseDemandedBits - early-out for any scalable vector types
Simon Pilgrim [Sun, 24 Jul 2022 11:59:43 +0000 (12:59 +0100)]
[DAG] SimplifyMultipleUseDemandedBits - early-out for any scalable vector types

Noticed while working to remove SelectionDAG::GetDemandedBits - we were relying on the callers to have already bailed for scalable vectors

23 months ago[DAG] SimplifyDemandedVectorElts - if every and/mul element-pair has a zero/undef...
Simon Pilgrim [Sun, 24 Jul 2022 11:00:31 +0000 (12:00 +0100)]
[DAG] SimplifyDemandedVectorElts - if every and/mul element-pair has a zero/undef then just constant fold to zero

23 months ago[X86] combineAndnp - remove unused variable. NFC.
Simon Pilgrim [Sun, 24 Jul 2022 10:32:44 +0000 (11:32 +0100)]
[X86] combineAndnp - remove unused variable. NFC.

23 months ago[X86][SSE] Enable X86ISD::ANDNP constant folding
Simon Pilgrim [Sun, 24 Jul 2022 10:07:34 +0000 (11:07 +0100)]
[X86][SSE] Enable X86ISD::ANDNP constant folding

23 months ago[X86] Don't assume an AND/ANDNP element is undef/undemanded just because one element...
Simon Pilgrim [Sun, 24 Jul 2022 09:53:38 +0000 (10:53 +0100)]
[X86] Don't assume an AND/ANDNP element is undef/undemanded just because one element is undef

For mask ops like these, the other operand's corresponding element might be zero (result = zero) - so we must demand all the bits and that element.

This appears to be what D128570 was trying to fix - both sides of the funnel shift mask of the vXi64 (legalized to v2Xi32) were incorrectly simplifying the upper 32-bit halves to undef, resulting in bad folds later on.

I intend to address the test case regressions, but this close to the release branch I'd prefer to get a fix in first.

23 months ago[MC] Remove unused renameELFSection
Fangrui Song [Sun, 24 Jul 2022 08:23:07 +0000 (01:23 -0700)]
[MC] Remove unused renameELFSection

23 months ago[MC] Delete dead zlib-gnu code and simplify writeSectionData
Fangrui Song [Sun, 24 Jul 2022 08:17:34 +0000 (01:17 -0700)]
[MC] Delete dead zlib-gnu code and simplify writeSectionData

23 months ago[clangd] Do not try to use $0 as a placeholder in completion snippets
Nathan Ridge [Mon, 18 Jul 2022 07:48:04 +0000 (03:48 -0400)]
[clangd] Do not try to use $0 as a placeholder in completion snippets

$0 can only be used as a tab stop, not as a placeholder (e.g.
`${0:expression}` is not valid)

Fixes https://github.com/clangd/clangd/issues/1190

Differential Revision: https://reviews.llvm.org/D128621

23 months agoRevert "[Orc] Use default member initialization (NFC)"
Kazu Hirata [Sun, 24 Jul 2022 04:10:10 +0000 (21:10 -0700)]
Revert "[Orc] Use default member initialization (NFC)"

This reverts commit d534967b6667c468b12e9ed5e3c482f590dde633.

The patch causes build failures, such as:

https://lab.llvm.org/buildbot/#/builders/121/builds/21760

23 months ago[Hexagon] Remove unused declaration getByteVectorTy (NFC)
Kazu Hirata [Sun, 24 Jul 2022 02:40:43 +0000 (19:40 -0700)]
[Hexagon] Remove unused declaration getByteVectorTy (NFC)

The declaration was introduced without a corresponding definition on
Sep 7, 2020 in commit f5d07a05bbd41f827ccfa1bed7bfdfbab2be85dc.

23 months ago[Passes] Simplify ChangePrinter names. NFC
Fangrui Song [Sun, 24 Jul 2022 02:32:13 +0000 (19:32 -0700)]
[Passes] Simplify ChangePrinter names. NFC

23 months ago[libcxx] Remove static inline and make use of _LIBCPP_HIDE_FROM_ABI in __support...
Brad Smith [Sun, 24 Jul 2022 02:09:58 +0000 (22:09 -0400)]
[libcxx] Remove static inline and make use of _LIBCPP_HIDE_FROM_ABI in __support/xlocale/__nop_locale_mgmt.h header

Reviewed By: ldionne

Differential Revision: https://reviews.llvm.org/D129949

23 months ago[Analysis] Use default member initialization (NFC)
Kazu Hirata [Sun, 24 Jul 2022 01:36:24 +0000 (18:36 -0700)]
[Analysis] Use default member initialization (NFC)

23 months ago[Orc] Use default member initialization (NFC)
Kazu Hirata [Sun, 24 Jul 2022 01:36:23 +0000 (18:36 -0700)]
[Orc] Use default member initialization (NFC)

Identified with modernize-use-default-member-init

23 months ago[RISCV] Add a continue to reduce nesting. NFC
Craig Topper [Sat, 23 Jul 2022 23:40:29 +0000 (16:40 -0700)]
[RISCV] Add a continue to reduce nesting. NFC

23 months agoclang/include/clang/module.modulemap: Mark `Tooling/Inclusions/*.inc` as textual.
NAKAMURA Takumi [Sun, 24 Jul 2022 00:28:08 +0000 (09:28 +0900)]
clang/include/clang/module.modulemap: Mark `Tooling/Inclusions/*.inc` as textual.

Fixes llvmorg-15-init-917-g46a6f5ae148a

23 months ago[CodeGen] Use range-based for loops (NFC)
Kazu Hirata [Sat, 23 Jul 2022 23:10:46 +0000 (16:10 -0700)]
[CodeGen] Use range-based for loops (NFC)

23 months ago[IPO] Use std::array for AccessKind2Accesses (NFC)
Kazu Hirata [Sat, 23 Jul 2022 22:47:53 +0000 (15:47 -0700)]
[IPO] Use std::array for AccessKind2Accesses (NFC)

Switching to std:array allow us to use fill.

While I am at it, this patch also converts one for loop to a
range-based one.

23 months ago[lldb] Adapt lldb tests to changes in 71cdb8c6f144
Augusto Noronha [Sat, 23 Jul 2022 22:37:15 +0000 (15:37 -0700)]
[lldb] Adapt lldb tests to changes in 71cdb8c6f144

23 months ago[LegacyPM] Remove {,PostInline}EntryExitInstrumenterPass
Fangrui Song [Sat, 23 Jul 2022 22:30:15 +0000 (15:30 -0700)]
[LegacyPM] Remove {,PostInline}EntryExitInstrumenterPass

Following recent changes removing non-core features of the legacy
PM/optimization pipeline.

23 months agoAutogenerate tests for win64-byval.ll . NFC
Amaury Séchet [Sat, 23 Jul 2022 21:51:50 +0000 (21:51 +0000)]
Autogenerate tests for win64-byval.ll . NFC

23 months agofix tests for commit 9df0b254d24eca098
Nuno Lopes [Sat, 23 Jul 2022 21:32:30 +0000 (22:32 +0100)]
fix tests for commit 9df0b254d24eca098

23 months ago[NFC] Switch a few uses of undef to poison as placeholders for unreachable code
Nuno Lopes [Sat, 23 Jul 2022 20:50:11 +0000 (21:50 +0100)]
[NFC] Switch a few uses of undef to poison as placeholders for unreachable code

23 months ago[Vectorize] Remove isConsecutiveLoadOrStore (NFC)
Kazu Hirata [Sat, 23 Jul 2022 20:01:14 +0000 (13:01 -0700)]
[Vectorize] Remove isConsecutiveLoadOrStore (NFC)

The last use was removed on Jan 4, 2022 in commit
95a93722db2d10753f8887cf6a61380936d32f1c.

23 months ago[AMDGPU] Remove a redundant variable (NFC)
Kazu Hirata [Sat, 23 Jul 2022 19:29:05 +0000 (12:29 -0700)]
[AMDGPU] Remove a redundant variable (NFC)

ArrayRef has operator[], so we don't need to access the contents via
data().

23 months agoConvert for_each to range-based for loops (NFC)
Kazu Hirata [Sat, 23 Jul 2022 19:17:27 +0000 (12:17 -0700)]
Convert for_each to range-based for loops (NFC)

23 months ago[Analysis] Remove a redundant return statement (NFC)
Kazu Hirata [Sat, 23 Jul 2022 18:35:19 +0000 (11:35 -0700)]
[Analysis] Remove a redundant return statement (NFC)

Identified with readability-redundant-control-flow.

23 months ago[AMDGPU] Change DEBUG_TYPE from isel to amdgpu-isel
Fangrui Song [Sat, 23 Jul 2022 18:32:02 +0000 (11:32 -0700)]
[AMDGPU] Change DEBUG_TYPE from isel to amdgpu-isel

to match all other *ISelDAGToDAG.cpp

23 months ago[TableGen] Drop an unnecessary const from a return type (NFC)
Kazu Hirata [Sat, 23 Jul 2022 18:30:23 +0000 (11:30 -0700)]
[TableGen] Drop an unnecessary const from a return type (NFC)

This patch also drops "&" that binds to a temporary.

Identified with readability-const-return-type.

23 months ago[ADT] Use default member initialization (NFC)
Kazu Hirata [Sat, 23 Jul 2022 17:50:26 +0000 (10:50 -0700)]
[ADT] Use default member initialization (NFC)

Identified with modernize-use-default-member-init.

23 months ago[flang] Correct IsHostAssociated() to be true for BLOCK constructs
Peter Klausler [Fri, 22 Jul 2022 18:51:20 +0000 (11:51 -0700)]
[flang] Correct IsHostAssociated() to be true for BLOCK constructs

The predicate IsHostAssocited() was implemented in a way that would
return true only for cases of host association into a module or inner
subprogram.  Technically, the use of a name in a BLOCK construct
that is not declared therein is considered in the Fortran standard
to also be a form of host association, and this matters when doing
error checking on DATA statements.

Differential Revision: https://reviews.llvm.org/D130388

23 months ago[DAG] isSplatValue - don't attempt to merge any BITCAST sub elements if they contain...
Simon Pilgrim [Sat, 23 Jul 2022 17:38:48 +0000 (18:38 +0100)]
[DAG] isSplatValue - don't attempt to merge any BITCAST sub elements if they contain UNDEFs

We still haven't found a solution that correctly handles 'don't care' sub elements properly - given how close it is to the next release branch, I'm making this fail safe change and we can revisit this later if we can't find alternatives.

NOTE: This isn't a reversion of D128570 - it's the removal of undef handling across bitcasts entirely

Fixes #56520

23 months ago[X86] Add test case for Issue #56520
Simon Pilgrim [Sat, 23 Jul 2022 17:18:39 +0000 (18:18 +0100)]
[X86] Add test case for Issue #56520

23 months ago[flang] Clean up bogus semantic error on procedure pointer assignment
Peter Klausler [Mon, 18 Jul 2022 21:12:21 +0000 (14:12 -0700)]
[flang] Clean up bogus semantic error on procedure pointer assignment

When a procedure pointer with no interface is associated with
an EXTERNAL name with no interface information, but it is later
inferred that the procedure pointer must be a subroutine because it
appears in a CALL statement, don't complain that the EXTERNAL name
is not also known to be a subroutine.

Subroutine vs. function errors are still caught in procedure pointer
assignment compatibility checking; this fix simply ensures that those
more nuanced tests are not overridded by the attribute set equality test.

Also, leave in some code for dumping the differing attributes in legitimate
error cases that was added in the coures of debugging the specific problem.

Differential Revision: https://reviews.llvm.org/D130385

23 months ago[lld-macho][nfc] Reduce nesting of code added in D130125
Jez Ng [Sat, 23 Jul 2022 16:21:46 +0000 (12:21 -0400)]
[lld-macho][nfc] Reduce nesting of code added in D130125

23 months ago[flang] Don't fold zero-length substring references
Peter Klausler [Mon, 18 Jul 2022 20:13:03 +0000 (13:13 -0700)]
[flang] Don't fold zero-length substring references

In some contexts the code looks cleaner if we fold zero-length substring
references into empty character constants, but those don't work in
variable definition contexts and can lead to bogus semantic error
messages.

Differential Revision: https://reviews.llvm.org/D130383

23 months agoRevert "[NFC] Improve FileSpec internal APIs and usage in preparation for adding...
Nico Weber [Sat, 23 Jul 2022 16:31:31 +0000 (12:31 -0400)]
Revert "[NFC] Improve FileSpec internal APIs and usage in preparation for adding caching of resolved/absolute." and follow-ups

This reverts commit 9429b67b8e300e638d7828bbcb95585f85c4df4d.

It broke the build on Windows, see comments on https://reviews.llvm.org/D130309

It also reverts these follow-ups:

Revert "Fix buildbot breakage after https://reviews.llvm.org/D130309."
This reverts commit f959d815f4637890ebbacca379f1c38ab47e4e14.

Revert "Fix buildbot breakage after https://reviews.llvm.org/D130309."
This reverts commit 0bbce7a4c2d2bff622bdadd4323f93f5d90e6d24.

Revert "Cache the value for absolute path in FileSpec."
This reverts commit dabe877248b85b34878e75d5510339325ee087d0.

23 months ago[flang] Fix name of dummy argument to intrinsic NEW_LINE(A='')
Peter Klausler [Mon, 18 Jul 2022 18:30:29 +0000 (11:30 -0700)]
[flang] Fix name of dummy argument to intrinsic NEW_LINE(A='')

It should be A= but I misspelled it in the intrinsics table as X=.

Differential Revision: https://reviews.llvm.org/D130382

23 months agoFix one stray `{LLVM -> CLANG}_TOOLS_INSTALL_DIR`
John Ericson [Fri, 22 Jul 2022 14:24:54 +0000 (14:24 +0000)]
Fix one stray `{LLVM -> CLANG}_TOOLS_INSTALL_DIR`

Follow up to D117977, where I missed this new usage after one rebase.

Thanks @tsteller in https://reviews.llvm.org/D117977#3670919 for
noticing.

Reviewed By: mstorsjo

Differential Revision: https://reviews.llvm.org/D130362

23 months agoUse static_assert instead of assert (NFC)
Kazu Hirata [Sat, 23 Jul 2022 16:22:27 +0000 (09:22 -0700)]
Use static_assert instead of assert (NFC)

Identified with misc-static-assert.

23 months ago[lld-macho] Fold __objc_imageinfo sections
Jez Ng [Sat, 23 Jul 2022 16:11:46 +0000 (12:11 -0400)]
[lld-macho] Fold __objc_imageinfo sections

Previously, we treated it as a regular ConcatInputSection. However, ld64
actually parses its contents and uses that to synthesize a single image
info struct, generating one 8-byte section instead of `8 * number of
object files with ObjC code`.

I'm not entirely sure what impact this section has on the runtime, so I
just tried to follow ld64's semantics as closely as possible in this
diff. My main motivation though was to reduce binary size.

No significant perf change on chromium_framework on my 16-core Mac Pro:

             base           diff           difference (95% CI)
  sys_time   1.764 ± 0.062  1.748 ± 0.032  [  -2.4% ..   +0.5%]
  user_time  5.112 ± 0.104  5.106 ± 0.046  [  -0.9% ..   +0.7%]
  wall_time  6.111 ± 0.184  6.085 ± 0.076  [  -1.6% ..   +0.8%]
  samples    30             32

Reviewed By: #lld-macho, thakis

Differential Revision: https://reviews.llvm.org/D130125

23 months ago[X86] matchBinaryShuffle - limit SHUFFLE(X,Y) -> OR(X,Y) cases to where X + Y are...
Simon Pilgrim [Sat, 23 Jul 2022 15:56:39 +0000 (16:56 +0100)]
[X86] matchBinaryShuffle - limit SHUFFLE(X,Y) -> OR(X,Y) cases to where X + Y are the same width as the result

Minor bit of prep work toward not unnecessarily widening shuffle operands in combineX86ShufflesRecursively, instead only widening in combineX86ShuffleChain if we actual find a match - see Issue #45319

23 months ago[lld-macho] Fix segfault when handling LTO + object file weak defs
Jez Ng [Sat, 23 Jul 2022 15:47:44 +0000 (11:47 -0400)]
[lld-macho] Fix segfault when handling LTO + object file weak defs

which occurs when there are EH frames present in the object file's weak
def.

Reviewed By: abrachet

Differential Revision: https://reviews.llvm.org/D130409

23 months ago[IR] Fixed ambiguous call to llvm::report_fatal_error
Dmitry Vassiliev [Sat, 23 Jul 2022 14:28:18 +0000 (16:28 +0200)]
[IR] Fixed ambiguous call to llvm::report_fatal_error

This patch fixes the following error with MSVC 16.9.2:
llvm/lib/IR/GCStrategy.cpp(35): error C2668: 'llvm::report_fatal_error': ambiguous call to overloaded function
llvm/include/llvm/Support/ErrorHandling.h(75): note: could be 'void llvm::report_fatal_error(const llvm::Twine &,bool)'
llvm/include/llvm/Support/ErrorHandling.h(73): note: or 'void llvm::report_fatal_error(llvm::StringRef,bool)'
llvm/lib/IR/GCStrategy.cpp(35): note: while trying to match the argument list '(const std::string)'

Reviewed By: RKSimon, barannikov88

Differential Revision: https://reviews.llvm.org/D130407

23 months agoUse llvm::sort instead of std::sort where possible
Dmitri Gribenko [Sat, 23 Jul 2022 13:14:14 +0000 (15:14 +0200)]
Use llvm::sort instead of std::sort where possible

llvm::sort is beneficial even when we use the iterator-based overload,
since it can optionally shuffle the elements (to detect
non-determinism). However llvm::sort is not usable everywhere, for
example, in compiler-rt.

Reviewed By: nhaehnle

Differential Revision: https://reviews.llvm.org/D130406

23 months ago[Clang] Update the status of N2393 in c_status.html
Corentin Jabot [Sat, 23 Jul 2022 13:15:12 +0000 (15:15 +0200)]
[Clang] Update the status of N2393 in c_status.html

23 months agoUse the range-based overload of llvm::sort where possible
Dmitri Gribenko [Sat, 23 Jul 2022 13:07:49 +0000 (15:07 +0200)]
Use the range-based overload of llvm::sort where possible

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D130403

23 months ago[DAG] Move OR(AND(X,C1),AND(OR(X,Y),C2)) -> OR(AND(X,OR(C1,C2)),AND(Y,C2)) fold to...
Simon Pilgrim [Sat, 23 Jul 2022 12:11:07 +0000 (13:11 +0100)]
[DAG] Move OR(AND(X,C1),AND(OR(X,Y),C2)) -> OR(AND(X,OR(C1,C2)),AND(Y,C2)) fold to SimplifyDemandedBits

This will fix the SystemZ v3i31 memcpy regression in D77804 (with the help of D129765 as well....).

It should also allow us to /bend/ the oneuse limitation for cases where we can use demanded bits to safely peek though multiple uses of the AND ops.

23 months ago[Clang] Adjust extension warnings for #warning
Corentin Jabot [Sat, 23 Jul 2022 09:08:14 +0000 (11:08 +0200)]
[Clang] Adjust extension warnings for #warning

The #warning directive is standard in C++2b and C2x,
this adjusts the pedantic and extensions warning accordingly.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D130415

23 months ago[Clang] Add support for Unicode identifiers (UAX31) in C2x mode.
Corentin Jabot [Sat, 23 Jul 2022 10:18:01 +0000 (12:18 +0200)]
[Clang] Add support for Unicode identifiers (UAX31) in C2x mode.

This implements
N2836 Identifier Syntax using Unicode Standard Annex 31.

The feature was already implemented for C++,
and the semantics are the same.

Unlike C++ there was, afaict, no decision to
backport the feature in older languages mode,
so C17 and earlier are not modified and the
code point tables for these language modes are conserved.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D130416

23 months ago[bazel] Add missing dependencies after 535b507ba58e8b5f604d53ffc961be1456d229a7
Benjamin Kramer [Sat, 23 Jul 2022 11:25:23 +0000 (13:25 +0200)]
[bazel] Add missing dependencies after 535b507ba58e8b5f604d53ffc961be1456d229a7

23 months ago[DAG] SimplifyDemandedBits - pull out repeated getValueType() calls. NFC.
Simon Pilgrim [Sat, 23 Jul 2022 11:01:54 +0000 (12:01 +0100)]
[DAG] SimplifyDemandedBits - pull out repeated getValueType() calls. NFC.

23 months ago[DAG] ExpandIntRes_ADDSUB - create UADDO/USUBO instead of ADDCARRY/SUBCARRY if overfl...
Simon Pilgrim [Sat, 23 Jul 2022 10:13:37 +0000 (11:13 +0100)]
[DAG] ExpandIntRes_ADDSUB - create UADDO/USUBO instead of ADDCARRY/SUBCARRY if overflow is known to be zero

As noticed on D127115, when splitting ADD/SUB nodes we often end up with cases where overflow from the lower bits is impossible - in such cases we're better off breaking the carry chain dependency as soon as possible.

This path is being exercised by llvm/test/CodeGen/ARM/dsp-mlal.ll, although I haven't been able to get any codegen diff without a topological worklist.

23 months ago[MIPS][compiler-rt] Fix stat struct's size for O32 ABI
Dimitrije Milosevic [Sat, 23 Jul 2022 08:24:15 +0000 (10:24 +0200)]
[MIPS][compiler-rt] Fix stat struct's size for O32 ABI

Add the MIPS O32 ABI value for the stat struct's size.

Differential Revision: https://reviews.llvm.org/D129749.

23 months ago[DAG] computeKnownBits - add basic shift-by-parts handling
Simon Pilgrim [Sat, 23 Jul 2022 08:46:30 +0000 (09:46 +0100)]
[DAG] computeKnownBits - add basic shift-by-parts handling

Concat KnownBits from ISD::SHL_PARTS / ISD::SRA_PARTS / ISD::SRL_PARTS lo/hi operands and perform the KnownBits calculation by the shift amount on the extended type, before splitting the KnownBits based on the requested lo/hi result.

23 months agoUse callables directly in any_of, count_if, etc (NFC)
Kazu Hirata [Sat, 23 Jul 2022 07:28:31 +0000 (00:28 -0700)]
Use callables directly in any_of, count_if, etc (NFC)

23 months ago[flang] Support aint/anint for 80/128 bit in lowering
Peixin Qiao [Sat, 23 Jul 2022 06:44:20 +0000 (14:44 +0800)]
[flang] Support aint/anint for 80/128 bit in lowering

For aint/anint, LLVM conversion operations llvm.trunc and llvm.round
can support the edge case of aint(-0.) and anint(-0.). The output is -0.
and it is the same of `gfortran` and `classic flang`, while the output
of `ifort` is 0.. The `real(10)/real(16)` is not supported before.
Support it and remove the runtime functions for aint/anint.

For nint, `gfortran`, `ifort`, and LLVM Flang using llvm.lround have
different results when the magnitude of argument is more than the max of
result value range. So delay its support in lowering after more
investigations.

Reviewed By: vzakhari

Differential Revision: https://reviews.llvm.org/D130024

23 months ago[mlir] Use value instead of getValue (NFC)
Kazu Hirata [Sat, 23 Jul 2022 06:33:46 +0000 (23:33 -0700)]
[mlir] Use value instead of getValue (NFC)

23 months agoUse has_value instead of hasValue (NFC)
Kazu Hirata [Sat, 23 Jul 2022 06:04:38 +0000 (23:04 -0700)]
Use has_value instead of hasValue (NFC)

23 months ago[NFC] Move function definition to cpp file
Jun Zhang [Sat, 23 Jul 2022 04:29:18 +0000 (12:29 +0800)]
[NFC] Move function definition to cpp file

Signed-off-by: Jun Zhang <jun@junz.org>
23 months ago[Attributor][FIX] HasBeenWrittenTo logic should only be used for reads
Johannes Doerfert [Sat, 23 Jul 2022 04:56:12 +0000 (23:56 -0500)]
[Attributor][FIX] HasBeenWrittenTo logic should only be used for reads

If we look at a write, we should not enact the "has been written to"
logic introduced to avoid spurious write -> read dependences. Doing so
lead to elimination of stores we needed, which is obviously bad.

23 months ago[flang] Fold calls to ISHFTC()
Peter Klausler [Sat, 16 Jul 2022 00:33:44 +0000 (17:33 -0700)]
[flang] Fold calls to ISHFTC()

The integer arithmetic template supports ISHFTC() but the
integer intrinsic folding code had yet to call it; finish
the job.

Differential Revision: https://reviews.llvm.org/D130379

23 months ago[flang] Fix a warning
Kazu Hirata [Sat, 23 Jul 2022 00:56:10 +0000 (17:56 -0700)]
[flang] Fix a warning

This patch fixes:

  llvm-project/flang/lib/Semantics/expression.cpp:405:12: error:
  moving a local object in a return statement prevents copy elision
  [-Werror,-Wpessimizing-move]

23 months ago[libasan] Remove 4Mb stack limit for swapcontext unpoisoning
Ivan Trofimov [Mon, 11 Jul 2022 17:12:31 +0000 (10:12 -0700)]
[libasan] Remove 4Mb stack limit for swapcontext unpoisoning

Reviewed By: vitalybuka, eugenis

Differential Revision: https://reviews.llvm.org/D129219

23 months ago[flang] Correct folding of TRANSFER(integer, character array)
Peter Klausler [Fri, 15 Jul 2022 19:15:07 +0000 (12:15 -0700)]
[flang] Correct folding of TRANSFER(integer, character array)

The code that copies data from a constant source array into a character
array constant result was failing to copy its last element if it was
only partially defined due to misalignment.

Differential Revision: https://reviews.llvm.org/D130376

23 months ago[Driver] Error for -gsplit-dwarf with RISC-V linker relaxation
Fangrui Song [Sat, 23 Jul 2022 00:16:41 +0000 (17:16 -0700)]
[Driver] Error for -gsplit-dwarf with RISC-V linker relaxation

-gsplit-dwarf produces a .dwo file which will not be processed by the linker. If
.dwo files contain relocations, they will not be resolved. Therefore the
practice is that .dwo files do not contain relocations.

Address ranges and location description need to use forms/entry kinds indexing
into .debug_addr (DW_FORM_addrx/DW_RLE_startx_endx/etc), which is currently not
implemented.

There is a difficult-to-read MC error with -gsplit-dwarf with RISC-V for both -mrelax and -mno-relax.
```
% clang --target=riscv64-linux-gnu -g -gsplit-dwarf -c a.c
error: A dwo section may not contain relocations
```

We expect to fix -mno-relax soon, so report a driver error for -mrelax for now.

Link: https://github.com/llvm/llvm-project/issues/56642
Reviewed By: compnerd, kito-cheng

Differential Revision: https://reviews.llvm.org/D130190

23 months ago[flang] Fix parsing and semantics for array element substring%KIND/%LEN
Peter Klausler [Fri, 22 Jul 2022 17:52:30 +0000 (10:52 -0700)]
[flang] Fix parsing and semantics for array element substring%KIND/%LEN

A type-param-inquiry of %KIND or %LEN applies to a designator, and
so must also be allowed for a substring.  F18 presently (mis)parses
instances of a type-param-inquiry as structure component references
and then fixes them in expression semantics when types are known and
we can distinguish them.  But when the base of a type-param-inquiry is
a substring of an array element, as in "charArray(i)(j:k)%len",
parsing fails.

Adjust the grammar to parse these cases, and extend expression semantics
to process the new production.

Differential Revision: https://reviews.llvm.org/D130375

23 months ago[Lit] Pass through DFLTCC from the surrounding environment
Ilya Leoshkevich [Fri, 22 Jul 2022 23:38:26 +0000 (01:38 +0200)]
[Lit] Pass through DFLTCC from the surrounding environment

Many distros ship zlib with the IBM Z deflate hardware acceleration
patch [1]. Sometimes it's desirable to disable the acceleration, for
example, for reproducibility. This can be done by exporting DFLTCC=0.
llvm-lit clears this environment variable, which causes
compress-debug-sections-zlib.test fail on z15 and later machines. Add
DFLTCC to the list of variables to keep.

[1] https://github.com/madler/zlib/pull/410

Reviewed By: abrachet

Differential Revision: https://reviews.llvm.org/D130253