platform/upstream/llvm.git
2 years ago[OpenMP] Possible fix for sporadic test failure from loop_dispatch.c
Hansang Bae [Mon, 2 May 2022 18:42:26 +0000 (13:42 -0500)]
[OpenMP] Possible fix for sporadic test failure from loop_dispatch.c

This patch tries to fix sporadic test failure after the change
https://reviews.llvm.org/D122107.
Made the test wait until every thread has at least one loop iteration.

Differential Revision: https://reviews.llvm.org/D124812

2 years agoRevert "[BOLT][TEST] Fix test failures on AArch64 builder"
Amir Ayupov [Tue, 3 May 2022 19:45:15 +0000 (12:45 -0700)]
Revert "[BOLT][TEST] Fix test failures on AArch64 builder"

This reverts commit 88b6d3211c836021a9b570ac6090dd1bf42da449.

2 years ago[BOLT][TEST] Fix test failures on AArch64 builder
Amir Ayupov [Tue, 3 May 2022 17:18:17 +0000 (10:18 -0700)]
[BOLT][TEST] Fix test failures on AArch64 builder

Address X86 tests failures on AArch64 builder:
https://lab.llvm.org/staging/#/builders/211/builds/82

Inputs fail to cross-compile due to a missing header:
```
/usr/include/stdio.h:27:10: fatal error: 'bits/libc-header-start.h' file not found
#include <bits/libc-header-start.h>
```

As inputs are linked with `-nostdlib` anyway, don't include stdio.h.

Reviewed By: yota9

Differential Revision: https://reviews.llvm.org/D124863

2 years agoExtractAPI: Use %clang_cc1 and -verify in enum.c
Duncan P. N. Exon Smith [Thu, 28 Apr 2022 19:44:32 +0000 (12:44 -0700)]
ExtractAPI: Use %clang_cc1 and -verify in enum.c

Fix one test (enum.c) in ExtractAPI to use %clang_cc1 and -verify
instead of calling the full driver and FileCheck. This is an example for
my comment from https://reviews.llvm.org/D121873.

Differential Revision: https://reviews.llvm.org/D124634

2 years agoFix some places where PseudoObjectExpr handling assumed that a
Richard Smith [Mon, 2 May 2022 21:47:52 +0000 (14:47 -0700)]
Fix some places where PseudoObjectExpr handling assumed that a
PseudoObjectExpr is only used for ObjC properties and subscripts.

For now, these assumptions are generally correct, but that's not part of
the design of PseudoObjectExpr. No functionality change intended.

2 years agoMinor correction in bitreverse intrinsic semantics
David Kreitzer [Tue, 3 May 2022 14:57:57 +0000 (07:57 -0700)]
Minor correction in bitreverse intrinsic semantics

Differential Revision: https://reviews.llvm.org/D124861

2 years ago[clang-format][NFC] Clean up tryToParseLambdaIntroducer()
owenca [Tue, 3 May 2022 03:02:57 +0000 (20:02 -0700)]
[clang-format][NFC] Clean up tryToParseLambdaIntroducer()

Differential Revision: https://reviews.llvm.org/D124818

2 years ago[gn build] Port 9f38da258ea7
LLVM GN Syncbot [Tue, 3 May 2022 18:28:46 +0000 (18:28 +0000)]
[gn build] Port 9f38da258ea7

2 years ago[pseudo] Implement the GLR parsing algorithm.
Haojian Wu [Tue, 3 May 2022 13:58:26 +0000 (15:58 +0200)]
[pseudo] Implement the GLR parsing algorithm.

This patch implements a standard GLR parsing algorithm, the
core piece of the pseudoparser.

- it parses preprocessed C++ code, currently it supports correct code
  only and parse them as a translation-unit;
- it produces a forest which stores all possible trees in an efficient
  manner (only a single node being build for per (SymbolID, Token Range));
  no disambiguation yet;

Reland with a fix for g++'s -fpermissive error on previous declaration `GSS& GSS;`.

Differential Revision: https://reviews.llvm.org/D121150

2 years ago[randstruct] Move initializer check to be more effective
Bill Wendling [Tue, 3 May 2022 18:19:52 +0000 (11:19 -0700)]
[randstruct] Move initializer check to be more effective

If a randomized structure has an initializer with a dedicated
initializer in it, the field initialzed by that dedicated initializer
may end up at the end of the RecordDecl. This however may skip the
random layout initization check.

  struct t {
     int a, b, c, d, e;
  } x = { .a = 2, 4, 5, 6 };

Let's say that "a" is lands as the last field after randomization. The
call to CheckDesignatedInitializer sets the iterator to the end of the
initializer list. During the next iteration of the initializer list
check, it detects that and fails to issue the error about initializing
a randomized struct with non-designated initializer. Instead, it issues
an error about "excess elements in struct initializer", which is
confusing under these circumstances.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D124694

2 years ago[lldb] Add setting for max depth of value object printing (NFC)
Dave Lee [Tue, 26 Apr 2022 23:34:10 +0000 (16:34 -0700)]
[lldb] Add setting for max depth of value object printing (NFC)

This adds a setting (`target.max-children-depth`) that will provide a default value for the `--depth` flag used by `expression` and `frame variable`.

The new setting uses the same default that's currently fixed in source: `UINT32_MAX`.

This provides two purposes:

1. Allowing downstream forks to provide a customized default.
2. Allowing users to set their own default.

Following `target.max-children-count`, a warning is emitted when the max depth is reached. The warning lets users know which flags or settings they can customize. This warning is shown only when the limit is the default value.

rdar://87466495

Differential Revision: https://reviews.llvm.org/D123954

2 years ago[mlir] Add sin & cos ops to complex dialect
Goran Flegar [Tue, 3 May 2022 17:27:22 +0000 (19:27 +0200)]
[mlir] Add sin & cos ops to complex dialect

Also adds conversions for those ops to math + arith.

Differential Revision: https://reviews.llvm.org/D124773

2 years agotsan: for unittests, change to use test fixtures to clear racy stacks
Yuanfang Chen [Tue, 3 May 2022 17:13:15 +0000 (10:13 -0700)]
tsan: for unittests, change to use test fixtures to clear racy stacks

After cd0a5889d71, unittest would run in shard mode where many tests
share a single process. Need to clear some global state to make the test
results stable.

Reviewed By: thetruestblue, rsundahl

Differential Revision: https://reviews.llvm.org/D124591

2 years agoBuildLibCalls: simplify switch statement slightly
Augie Fackler [Tue, 3 May 2022 16:11:34 +0000 (12:11 -0400)]
BuildLibCalls: simplify switch statement slightly

Per feedback on D123086 after submit.

Also added a test for vec_malloc et al attribute inference to show it's
doing the right thing.

The new tests exposed a defect, corrected by adding vec_free to the list of
free functions in MemoryBuiltins.cpp, which had been overlooked all the
way back in D94710, over a year ago.

Differential Revision: https://reviews.llvm.org/D124859

2 years ago[libc] add printf writer
Michael Jones [Mon, 25 Apr 2022 22:46:03 +0000 (15:46 -0700)]
[libc] add printf writer

The printf implmentation is made up of three main pieces, the parser,
the converter, and the writer. This patch adds the implementation for
the writer, as well as the function for writing to a string, along with
tests.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D124421

2 years ago[libc] fix strtold tests on 32 bit systems
Michael Jones [Mon, 2 May 2022 20:30:20 +0000 (13:30 -0700)]
[libc] fix strtold tests on 32 bit systems

This patch fixes the string to long double tests for systems that use
long double is double, and don't support uint128.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D124803

2 years ago[llvm-ar] Modify usage printouts to use the correct toolname
Chris Jackson [Tue, 3 May 2022 15:17:05 +0000 (16:17 +0100)]
[llvm-ar] Modify usage printouts to use the correct toolname

Modify llvm-ar and llvm-ranlib to use the actual name of the executable
when printing the usage text via the '--help' flag.

Reviewers: Maskray, jhenderson, gbreynoo

Differential Revision: https://reviews.llvm.org/D124445

2 years ago[mlir][LLVMIR] Add support for translating Switch instruction
Min-Yih Hsu [Wed, 20 Apr 2022 21:56:40 +0000 (14:56 -0700)]
[mlir][LLVMIR] Add support for translating Switch instruction

Add support for translating llvm::SwitchInst.

Differential Revision: https://reviews.llvm.org/D124628

2 years ago[DAG] Fix issue with rot(rot(x,c1),c2) -> rot(x,c1+c2) fold with unnormalized rotatio...
Simon Pilgrim [Tue, 3 May 2022 16:16:17 +0000 (17:16 +0100)]
[DAG] Fix issue with rot(rot(x,c1),c2) -> rot(x,c1+c2) fold with unnormalized rotation amounts

Don't assume the rotation amounts have been correctly normalized - do it as part of the constant folding.

Also, the normalization should be performed with UREM not SREM.

2 years ago[RFC] Add and sort decl to maintain order instead of inserting in order
Kugan Vivekanandarajah [Tue, 3 May 2022 16:04:46 +0000 (17:04 +0100)]
[RFC] Add and sort decl to maintain order instead of inserting in order

ASTWriter::associateDeclWithFile shows a lot in clangd perf profile due to O(n^2) behaviour in insertion of DeclIDs in SortedFileDeclIDs. Instead of doing that, this patch just appends it to the DeclIDs vector and sorts them at the end.

Reviewed By: akyrtzi

Differential Revision: https://reviews.llvm.org/D124840

2 years ago[X86] Add test showing failure to modulo the rotation amounts before merging an inner...
Simon Pilgrim [Tue, 3 May 2022 15:37:53 +0000 (16:37 +0100)]
[X86] Add test showing failure to modulo the rotation amounts before merging an inner rotation

Thanks to @spatel for the test case

2 years ago[ELF] Fix branch range computation when picking ThunkSection
Fangrui Song [Tue, 3 May 2022 15:46:15 +0000 (08:46 -0700)]
[ELF] Fix branch range computation when picking ThunkSection

Similar to D117734. Take AArch64 as an example when the branch range is +-0x8000000.

getISDThunkSec returns `ts` when `src-0x8000000-r_addend <= tsBase < src-0x8000000`
and the new thunk will be placed in `ts` (`ts->addThunk(t)`). However, the new
thunk (at the end of ts) may be unreachable from src. In the next pass,
`normalizeExistingThunk` reverts the relocation back to the original target.
Then a new thunk is created and the same `ts` is picked as before. The `ts` is
still unreachable.

I have observed it in one test with a sufficiently large r_addend (47664): there
are initially 245 Thunk's, then in each pass 14 new Thunk's are created and get
appended to the unreachable ThunkSection. After 15 passes lld fails with
`thunk creation not converged`.

The new test aarch64-thunk-reuse2.s checks the case.

Without `- pcBias`, arm-thumb-thunk-empty-pass.s and arm-thunk-multipass-plt.s
will fail.

Reviewed By: peter.smith

Differential Revision: https://reviews.llvm.org/D124653

2 years ago[SCEV] Regenerate test checks (NFC)
Nikita Popov [Tue, 3 May 2022 15:42:46 +0000 (17:42 +0200)]
[SCEV] Regenerate test checks (NFC)

2 years ago[Clang][OpenMP] Add the support for floating-point variables for specific atomic...
Shilei Tian [Tue, 3 May 2022 15:30:46 +0000 (11:30 -0400)]
[Clang][OpenMP] Add the support for floating-point variables for specific atomic clauses

Currently when using `atomic update` with floating-point variables, if
the operation is add or sub, `cmpxchg`, instead of `atomicrmw` is emitted, as
shown in [1].  In fact, about three years ago, llvm-svn: 351850 added the
support for FP operations. This patch adds the support in OpenMP as well.

[1] https://godbolt.org/z/M7b4ba9na

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D124724

2 years ago[X86] Autogen a few tests for ease of update [nfc]
Philip Reames [Tue, 3 May 2022 15:28:36 +0000 (08:28 -0700)]
[X86] Autogen a few tests for ease of update [nfc]

2 years ago[NFC][GVNSink] Don't pretend that iteration is over instructions when it's actually...
Dawid Jurczak [Tue, 3 May 2022 15:15:56 +0000 (17:15 +0200)]
[NFC][GVNSink] Don't pretend that iteration is over instructions when it's actually over blocks

Differential Revision: https://reviews.llvm.org/D124764

2 years ago[lldb][NFC] Refactor printing of short options in help
David Spickett [Mon, 11 Apr 2022 12:55:55 +0000 (12:55 +0000)]
[lldb][NFC] Refactor printing of short options in help

Instead of building a set twice for optional and required,
build a set for each while walking the options once.

Then take advantage of set being sorted meaning we don't
have to enforce the upper/lower order ourselves.

Just cleaned up the formatting on the later loops.
Combined the if conditions and used a single line if.

Depends on D123501

Reviewed By: jingham

Differential Revision: https://reviews.llvm.org/D123502

2 years ago[BOLT] [NFC] Remove unused variable
Paul Kirth [Tue, 3 May 2022 00:28:00 +0000 (00:28 +0000)]
[BOLT] [NFC] Remove unused variable

This patch fixes a warning from -Wunused-but-set-variable
MismatchedBranches are counted, but are never reported.
Since evaluateProfileData() should already identify and report
these cases, we can safely remove the unused variable.

Reviewed By: rafauler

Differential Revision: https://reviews.llvm.org/D124588

2 years ago[AArch64] Add native CPU detection for Ampere1
Philipp Tomsich [Tue, 3 May 2022 15:10:02 +0000 (16:10 +0100)]
[AArch64] Add native CPU detection for Ampere1

Map the IMPLEMENTOR ID 0xc0 (Ampere Computing) and CPU ID 0xac3
(Ampere1) to ampere1.

Differential Revision: https://reviews.llvm.org/D117111

2 years ago[X86] Add additional add of and not tests (NFC)
Nikita Popov [Tue, 3 May 2022 15:08:05 +0000 (17:08 +0200)]
[X86] Add additional add of and not tests (NFC)

Add tests for cases involving a truncated not.

2 years ago[PowerPC] Regenerate urem-seteq-illegal-types.ll
Simon Pilgrim [Tue, 3 May 2022 14:54:59 +0000 (15:54 +0100)]
[PowerPC] Regenerate urem-seteq-illegal-types.ll

Remove superfluous whitespace

2 years ago[AArch64] Support for Ampere1 core
Philipp Tomsich [Tue, 3 May 2022 14:54:02 +0000 (15:54 +0100)]
[AArch64] Support for Ampere1 core

Add support for the Ampere Computing Ampere1 core.
Ampere1 implements the AArch64 state and is compatible with ARMv8.6-A.

Differential Revision: https://reviews.llvm.org/D117112

2 years ago[lldb][NFC] Simplify part of Options::GenerateOptionUsage
David Spickett [Fri, 8 Apr 2022 15:43:16 +0000 (15:43 +0000)]
[lldb][NFC] Simplify part of Options::GenerateOptionUsage

Use llvm::enumerate, remove an unused arg name stream and
replace repeated uses of indexing to get the option def.

We could use map instead of multimap but I'm not 100% that
would be NFC. All short options should be unique in theory.

Depends on D123500

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D123501

2 years ago[X86] load-local-v3i129.ll - add checks for targets with fast/slow shld funnel shift ops
Simon Pilgrim [Tue, 3 May 2022 14:28:38 +0000 (15:28 +0100)]
[X86] load-local-v3i129.ll - add checks for targets with fast/slow shld funnel shift ops

2 years ago[X86] const-shift-of-constmasked.ll - replace X32 check prefix with X86
Simon Pilgrim [Tue, 3 May 2022 14:27:15 +0000 (15:27 +0100)]
[X86] const-shift-of-constmasked.ll - replace X32 check prefix with X86

We try to only use X32 for gnux32 triple tests

2 years ago[bazel] Add test targets for dataflow framework
Eric Li [Tue, 3 May 2022 03:28:52 +0000 (03:28 +0000)]
[bazel] Add test targets for dataflow framework

Differential Revision: https://reviews.llvm.org/D124819

2 years agoAdd explicit OpenMP 5.0 case for version macros; NFC
Aaron Ballman [Tue, 3 May 2022 13:58:20 +0000 (09:58 -0400)]
Add explicit OpenMP 5.0 case for version macros; NFC

This adds an explicit case for OpenMP 5.0 as a reminder to still define
the correct macro value when the default OpenMP version changes in the
future.

2 years agoFix a typo in an OpenMP test
Aaron Ballman [Tue, 3 May 2022 13:53:53 +0000 (09:53 -0400)]
Fix a typo in an OpenMP test

This fixes the typo and corrects the default OpenMP version being
tested.

2 years ago[gn build] Port 860eabb3953a
LLVM GN Syncbot [Tue, 3 May 2022 13:55:41 +0000 (13:55 +0000)]
[gn build] Port 860eabb3953a

2 years agoRevert "[pseudo] Implement the GLR parsing algorithm."
Haojian Wu [Tue, 3 May 2022 13:54:10 +0000 (15:54 +0200)]
Revert "[pseudo] Implement the GLR parsing algorithm."

This breaks some buildbots (on the declaration GSS& GSS), will fix it
later.

This reverts commit eac22d0754f70df10ea0eb6f59cbd1ef012ab5a4.

2 years ago[gn build] Port eac22d0754f7
LLVM GN Syncbot [Tue, 3 May 2022 13:47:14 +0000 (13:47 +0000)]
[gn build] Port eac22d0754f7

2 years ago[SDAG] Handle A and B&~A in haveNoCommonBitsSet()
Nikita Popov [Tue, 3 May 2022 10:16:29 +0000 (12:16 +0200)]
[SDAG] Handle A and B&~A in haveNoCommonBitsSet()

This is the DAG variant of D124763. The code already handles the
general pattern, but not this degenerate case.

This allows folding A + (B&~A) to A | (B&~A) which further holds
to A | B.

Handling on the SDAG level is needed because in the motivating
case the add is actually a getelementptr, which only gets converted
into an add on the SDAG level. However, this patch is not quite
sufficient to handle the getelementptr case yet, because of an
interfering demanded bits simplification.

Differential Revision: https://reviews.llvm.org/D124772

2 years ago[demangler] Fold expressions of .* and ->*
Nathan Sidwell [Fri, 18 Feb 2022 19:06:58 +0000 (11:06 -0800)]
[demangler] Fold expressions of .* and ->*

(Exitingly) a fold expression's operators include .* and ->*, but we
failed to demangle them as we categorize those as MemberExprs, not
BinaryExprs.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D123305

2 years ago[pseudo] Implement the GLR parsing algorithm.
Sam McCall [Thu, 28 Apr 2022 08:21:51 +0000 (10:21 +0200)]
[pseudo] Implement the GLR parsing algorithm.

This patch implements a standard GLR parsing algorithm, the
core piece of the pseudoparser.

- it parses preprocessed C++ code, currently it supports correct code
  only and parse them as a translation-unit;
- it produces a forest which stores all possible trees in an efficient
  manner (only a single node being build for per (SymbolID, Token Range));
  no disambiguation yet;

Differential Revision: https://reviews.llvm.org/D121150

2 years ago[lldb][NFC] Add more tests for GenerateOptionsUsage
David Spickett [Mon, 11 Apr 2022 11:14:38 +0000 (11:14 +0000)]
[lldb][NFC] Add more tests for GenerateOptionsUsage

This adds a few targeted tests to make sure that when refactoring
this function later I don't break these properties.

Some are tested in passing elsewhere but this makes it more
obvious what went wrong when it fails.

This doesn't cover everything the function does, I couldn't
find any examples that would exercise some of the code.

Reviewed By: jingham

Differential Revision: https://reviews.llvm.org/D123500

2 years agoRevert "[lldb] Fix ppc64 detection in lldb"
David Spickett [Tue, 3 May 2022 13:24:10 +0000 (13:24 +0000)]
Revert "[lldb] Fix ppc64 detection in lldb"

This reverts commit f114f009486816ed4b3bf984f0fbbb8fc80914f6.

Due to hitting an assert on our lldb bots:
https://lab.llvm.org/buildbot/#/builders/96/builds/22715

../llvm-project/lldb/source/Plugins/Process/elf-core/ThreadElfCore.cpp:170:
virtual lldb::RegisterContextSP ThreadElfCore::CreateRegisterContextForFrame(
lldb_private::StackFrame *): Assertion `false && "Architecture or OS not supported"' failed.

2 years ago[clang][AArch64][SVE] Implement conditional operator for SVE vectors
David Truby [Wed, 20 Apr 2022 13:56:19 +0000 (13:56 +0000)]
[clang][AArch64][SVE] Implement conditional operator for SVE vectors

This patch adds support for the conditional (ternary) operator on SVE
scalable vector types in C++, matching the behaviour for NEON vector
types. Like the conditional operator for NEON types, this is disabled in
C mode.

Differential Revision: https://reviews.llvm.org/D124091

2 years agoAMDGPU: Remove redundant call to MachineInstrBuilder::setMBB
Nicolai Hähnle [Thu, 28 Apr 2022 20:51:31 +0000 (15:51 -0500)]
AMDGPU: Remove redundant call to MachineInstrBuilder::setMBB

setInstrAndDebugLoc also sets the basic block automatically.

Differential Revision: https://reviews.llvm.org/D124809

2 years ago[Doc] Refine description of llvm.is_fpclass
Serge Pavlov [Tue, 3 May 2022 12:28:47 +0000 (19:28 +0700)]
[Doc] Refine description of llvm.is_fpclass

2 years ago[pseudo] Simplify the forest dump, NFC.
Haojian Wu [Tue, 3 May 2022 08:06:28 +0000 (10:06 +0200)]
[pseudo] Simplify the forest dump, NFC.

The code was written to handle nullable grammar, and we disallow
nullable grammar, so it is not necessary to keep it around.

Differential Revision: https://reviews.llvm.org/D124827

2 years ago[Linalg] Remove Optional from getStaticLoopRanges interface method.
Hanhan Wang [Tue, 3 May 2022 12:12:51 +0000 (05:12 -0700)]
[Linalg] Remove Optional from getStaticLoopRanges interface method.

It is very wrong if the ranges can't be infered. It's also checked in
verifyStructuredOpInterface, so we don't need the Optional return type.

Reviewed By: springerm

Differential Revision: https://reviews.llvm.org/D124596

2 years agoAMDGPU/GISel: Update some MIR tests to reduce future churn
Nicolai Hähnle [Tue, 3 May 2022 11:51:53 +0000 (13:51 +0200)]
AMDGPU/GISel: Update some MIR tests to reduce future churn

The default output format of the update_mir_test_checks.py script has
changed since some of these tests were generated.

Also, an upcoming commit will introduce differences between GFX9 and
GFX10 in the legalization of G_MUL.

2 years ago[analyzer] Check for std::__addressof for inner pointer checker
Ali Shuja Siddiqui [Tue, 3 May 2022 12:05:19 +0000 (14:05 +0200)]
[analyzer] Check for std::__addressof for inner pointer checker

This is an extension to diff D99260. This adds an additional exception
for `std::__addressof` in `InnerPointerChecker`.

Patch By alishuja (Ali Shuja Siddiqui)!

Reviewed By: martong, alishuja

Differential Revision: https://reviews.llvm.org/D109467

2 years agosanitizer: Fix fallthrough detection.
Martin Liska [Tue, 3 May 2022 11:55:28 +0000 (13:55 +0200)]
sanitizer: Fix fallthrough detection.

First check for clang::fallthrough attribute that resolves:

sanitizer_stack_store.cpp:258:7: error: use of the 'fallthrough'
attribute is a C++17 extension [-Werror,-Wc++17-attribute-extensions]

2 years ago[ARM] Only update the successor edges for immediate predecessors of PrologueMBB
Zhiyao Ma [Tue, 3 May 2022 11:29:48 +0000 (12:29 +0100)]
[ARM] Only update the successor edges for immediate predecessors of PrologueMBB

When adjusting the function prologue for segmented stacks, only update
the successor edges of the immediate predecessors of the original
prologue.

Differential Revision: https://reviews.llvm.org/D122959

2 years agoFix Clang sphinx build
Aaron Ballman [Tue, 3 May 2022 11:12:50 +0000 (07:12 -0400)]
Fix Clang sphinx build

It seems we don't have this option exposed via RST, so switching to use
generic backticks instead.

2 years ago[Windows] Fix handling of \" in program name on cmd line.
Simon Tatham [Tue, 3 May 2022 09:33:11 +0000 (10:33 +0100)]
[Windows] Fix handling of \" in program name on cmd line.

Bugzilla #47579: if you invoke clang on Windows via a pathname in
which a quoted section closes just after a backslash, e.g.

  "C:\Program Files\Whatever\"clang.exe

then cmd.exe and CreateProcess will correctly find the binary, because
when they parse the program name at the start of the command line,
they don't regard the \ before the " as having any kind of escaping
effect. This is different from the behaviour of the Windows standard C
library when it parses the rest of the command line, which would
consider that \" not to close the quoted string.

But this confuses windows::GetCommandLineArguments, because the
Windows API function GetCommandLineW() will return a command line
containing that \" sequence, and cl::TokenizeWindowsCommandLine will
tokenize the whole string according to the C library's rules. So it
will misidentify where the program name stops and the arguments start.

To fix this, I've introduced a new variant function
cl::TokenizeWindowsCommandLineFull(), intended to be applied to the
string returned from GetCommandLineW(). It parses the first word of
the command line according to CreateProcess's rules, considering \ to
never be an escaping character; thereafter, it switches over to the C
library rules for the rest of the command line.

Reviewed By: hans

Differential Revision: https://reviews.llvm.org/D122914

2 years ago[Windows] Fix cmd line tokenization of unclosed quotes.
Simon Tatham [Tue, 3 May 2022 09:33:11 +0000 (10:33 +0100)]
[Windows] Fix cmd line tokenization of unclosed quotes.

When cl::TokenizeWindowsCommandLine received a command line with an
unterminated double-quoted string at the end, it would discard the
text within that string. That doesn't match the behavior of the
standard Windows C library, which will return the text in the unclosed
quoted string as an argv word.

Fixed, and added extra unit tests in that area.

In some cases (specifically the one in Bugzilla #47579) this could
cause TokenizeWindowsCommandLine to return a zero-length list of
arguments, leading to an array overrun at the call site in
windows::GetCommandLineArguments. Added a check there, for extra
safety: now windows::GetCommandLineArguments will return an error code
instead of failing an assertion.

(This change was written as part of https://reviews.llvm.org/D122914,
but split into a separate commit at the last minute at the code
reviewer's suggestion, because it's fixing an unrelated bug in the
same area. The rest of D122914 will follow in the next commit.)

2 years agotsan: fix deadlock in libbacktrace
Martin Liska [Tue, 3 May 2022 10:42:01 +0000 (12:42 +0200)]
tsan: fix deadlock in libbacktrace

Fixes deadlock seen in GCC.

Fixes: #55226

Differential Revision: https://reviews.llvm.org/D124838

2 years ago[SDAG] Extract commutative helper from haveNoCommonBitsSet() (NFC)
Nikita Popov [Tue, 3 May 2022 10:20:04 +0000 (12:20 +0200)]
[SDAG] Extract commutative helper from haveNoCommonBitsSet() (NFC)

To make it easier to add additional patterns, which will generally
want to handle commuted top-level operands.

2 years ago[lldb] Fix ppc64 detection in lldb
serge-sans-paille [Mon, 2 May 2022 10:19:48 +0000 (12:19 +0200)]
[lldb] Fix ppc64 detection in lldb

Currently, ppc64le and ppc64 (defaulting to big endian) have the same
descriptor, thus the linear scan always return ppc64le. Handle that through
subtype.

Differential Revision: https://reviews.llvm.org/D124760

2 years ago[SLP][X86] Add test case for Issue #48223
Simon Pilgrim [Tue, 3 May 2022 10:01:47 +0000 (11:01 +0100)]
[SLP][X86] Add test case for Issue #48223

2 years ago[AArch64][SVE] Only fold frame indexes referencing SVE objects into SVE loads/stores
Bradley Smith [Tue, 26 Apr 2022 12:19:32 +0000 (12:19 +0000)]
[AArch64][SVE] Only fold frame indexes referencing SVE objects into SVE loads/stores

Currently we always fold frame indexes into SVE load/store instructions,
however these instructions can only encode VL scaled offests. This means
that when we are accessing a fixed length stack object with these
instructions, the folded in frame index gets pulled back out during frame
lowering. This can cause issues when we have no spare registers and no
emergency spill slot.

Rather than causing issues like this, don't fold in frame indexes that
reference fixed length objects.

Fixes: #55041

Differential Revision: https://reviews.llvm.org/D124457

2 years agosanitizer: use pragma clang conditionally
Martin Liska [Tue, 3 May 2022 08:19:20 +0000 (10:19 +0200)]
sanitizer: use pragma clang conditionally

Use the pragma only when __clang__ is defined.

Fixes:
sanitizer_common_libcdep.cpp:101: warning: ignoring ‘#pragma clang diagnostic’ [-Wunknown-pragmas]

Differential Revision: https://reviews.llvm.org/D124829

2 years ago[ValueTracking] A and (B & ~A) have no common bits set
Nikita Popov [Mon, 2 May 2022 16:21:00 +0000 (18:21 +0200)]
[ValueTracking] A and (B & ~A) have no common bits set

This extends haveNoCommonBitsSet() to two additional cases, allowing
the following folds:

 * `A + (B & ~A)` --> `A | (B & ~A)`
    (https://alive2.llvm.org/ce/z/crxxhN)
 * `A + ((A & B) ^ B)` --> `A | ((A & B) ^ B)`
    (https://alive2.llvm.org/ce/z/A_wsH_)

These should further fold to just `A | B`, though this currently
only works in the first case.

The reason why the second fold is necessary is that we consider
this to be the canonical form if B is a constant. (I did check
whether we can change that, but it looks like a number of folds
depend on the current canonicalization, so I ended up adding both
patterns here.)

Differential Revision: https://reviews.llvm.org/D124763

2 years ago[mlir] improve and test TransformState::Extension
Alex Zinenko [Mon, 2 May 2022 16:22:19 +0000 (18:22 +0200)]
[mlir] improve and test TransformState::Extension

Add the mechanism for TransformState extensions to update the mapping between
Transform IR values and Payload IR operations held by the state. The mechanism
is intentionally restrictive, similarly to how results of the transform op are
handled.

Introduce test ops that exercise a simple extension that maintains information
across the application of multiple transform ops.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D124778

2 years agoIn MSVC compatibility mode, friend function declarations behave as function declarations
Fred Tingaud [Tue, 3 May 2022 07:29:16 +0000 (09:29 +0200)]
In MSVC compatibility mode, friend function declarations behave as function declarations

Before C++20, MSVC treated any friend function declaration as a function declaration, so the following code would compile despite funGlob being declared after its first call:

```
class Glob {
public:
  friend void funGlob();

  void test() {
    funGlob();
  }
};

void funGlob() {}
```
This proposed patch mimics the MSVC behavior when in MSVC compatibility mode

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D124613

2 years agosanitizer: support GCC's fallthrough attribute
Martin Liska [Tue, 3 May 2022 08:54:06 +0000 (10:54 +0200)]
sanitizer: support GCC's fallthrough attribute

Fixes:
sanitizer_stack_store.cpp:257:13: warning: this statement may fall through [-Wimplicit-fallthrough=]

when being built with GCC.

Differential Revision: https://reviews.llvm.org/D124832

2 years ago[Analyzer] Fix assumptions about const field with member-initializer
Marco Antognini [Wed, 27 Apr 2022 12:51:57 +0000 (14:51 +0200)]
[Analyzer] Fix assumptions about const field with member-initializer

Essentially, having a default member initializer for a constant member
does not necessarily imply the member will have the given default value.

Remove part of a2e053638bbf ([analyzer] Treat more const variables and
fields as known contants., 2018-05-04).

Fix #47878

Reviewed By: r.stahl, steakhal

Differential Revision: https://reviews.llvm.org/D124621

2 years ago[LoopVectorize] Support reductions that store intermediary result
Igor Kirillov [Wed, 15 Sep 2021 18:42:01 +0000 (19:42 +0100)]
[LoopVectorize] Support reductions that store intermediary result

Adds ability to vectorize loops containing a store to a loop-invariant
address as part of a reduction that isn't converted to SSA form due to
lack of aliasing info. Runtime checks are generated to ensure the store
does not alias any other accesses in the loop.

Ordered fadd reductions are not yet supported.

Differential Revision: https://reviews.llvm.org/D110235

2 years ago[clang-format] Add a regression test for aligning macros with keywords.
Marek Kurdej [Tue, 3 May 2022 09:08:34 +0000 (11:08 +0200)]
[clang-format] Add a regression test for aligning macros with keywords.

Test from issue https://github.com/llvm/llvm-project/issues/54953.

2 years ago[mlir][MemRef] Return `0` for the canonical strided layout expr of a 0d memref
Benjamin Kramer [Mon, 2 May 2022 19:18:37 +0000 (21:18 +0200)]
[mlir][MemRef] Return `0` for the canonical strided layout expr of a 0d memref

There can't be any strides, and the offset for the canonical expr is
always 0. Fixes #55229.

Differential Revision: https://reviews.llvm.org/D124795

2 years ago[DebugInfo][InstrRef] Don't generate redundant DBG_PHIs
Jeremy Morse [Tue, 3 May 2022 08:42:27 +0000 (09:42 +0100)]
[DebugInfo][InstrRef] Don't generate redundant DBG_PHIs

In SelectionDAG, DBG_PHI instructions are created to "read" physreg values
and give them an instruction number, when they can't be traced back to a
defining instruction. The most common scenario if arguments to a function.
Unfortunately, if you have 100 inlined methods, each of which has the same
"this" pointer, then the 100 dbg.value instructions become 100
DBG_INSTR_REFs plus 100 DBG_PHIs, where only one DBG_PHI would suffice.

This patch adds a vreg cache for MachienFunction::salvageCopySSA, if we've
already traced a value back to the start of a block and created a DBG_PHI
then it allows us to re-use the DBG_PHI, as well as reducing work.

Differential Revision: https://reviews.llvm.org/D124517

2 years ago[NFC] Minimal refactor of TTI to avoid clangsa complaint
Markus Lavin [Tue, 3 May 2022 08:20:09 +0000 (10:20 +0200)]
[NFC] Minimal refactor of TTI to avoid clangsa complaint

Differential Revision: https://reviews.llvm.org/D124754

2 years ago[LV][SLP] Mark fptosi_sat as vectorizable
David Green [Tue, 3 May 2022 08:32:34 +0000 (09:32 +0100)]
[LV][SLP] Mark fptosi_sat as vectorizable

This adds fptosi_sat and fptoui_sat to the list of trivially
vectorizable functions, mainly so that the loop vectorizer can vectorize
the instruction. Marking them as trivially vectorizable also allows them
to be SLP vectorized, and Scalarized.

The signature of a fptosi_sat requires two type overrides
(@llvm.fptosi.sat.v2i32.v2f32), unlike other intrinsics that often only
take a single. This patch alters hasVectorInstrinsicOverloadedScalarOpd
to isVectorIntrinsicWithOverloadTypeAtArg, so that it can mark the first
operand of the intrinsic as a overloaded (but not scalar) operand.

Differential Revision: https://reviews.llvm.org/D124358

2 years ago[lldb] Fix nondeterminism in DWARFIndexCachingTest
Pavel Labath [Tue, 3 May 2022 08:28:47 +0000 (10:28 +0200)]
[lldb] Fix nondeterminism in DWARFIndexCachingTest

The entries in the input map need to be sorted as well, as there's no
guarantee that the entries (ConstStrings) will be inserted in the proper
order.

2 years ago[docs] PCH usage documentation update
Ivan Murashko [Sat, 30 Apr 2022 20:42:08 +0000 (21:42 +0100)]
[docs] PCH usage documentation update

The documentation has an incorrect example of PCH files usage via `-include` option. The possibility has not been available since [llvm-svn: 174385](https://reviews.llvm.org/rG48b72d81c8968f3d342557582db986a60aef2c54).

Differential Revision: https://reviews.llvm.org/D124719

2 years ago[X86][AMX] Add mayLoad/mayStore property for AMX instructions.
Luo, Yuanke [Tue, 3 May 2022 06:48:22 +0000 (14:48 +0800)]
[X86][AMX] Add mayLoad/mayStore property for AMX instructions.

2 years agoRevert "tsan: model atomic read for failing CAS"
Vitaly Buka [Tue, 3 May 2022 05:26:48 +0000 (22:26 -0700)]
Revert "tsan: model atomic read for failing CAS"

https://lab.llvm.org/buildbot/#/builders/70/builds/21206 hangs.

This reverts commit 2fec52a40261ecab7fc621184159f464c67dcfa4.

2 years ago[mlir] Create lbOperands before op.setLowerBound
Vitaly Buka [Wed, 27 Apr 2022 23:51:24 +0000 (16:51 -0700)]
[mlir] Create lbOperands before op.setLowerBound

To fix msan report like https://reviews.llvm.org/P8284

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D124575

2 years ago[lldb] Make GetSharedModuleWithLocalCache consider the device support directory
Jonas Devlieghere [Mon, 2 May 2022 19:53:38 +0000 (12:53 -0700)]
[lldb] Make GetSharedModuleWithLocalCache consider the device support directory

Make GetSharedModuleWithLocalCache consider the device support
directory. In the past we only needed the device support directory to
debug remote processes. Since the introduction of Apple Silicon and
Rosetta this stopped being true.

When debugging a Rosetta process on macOS we need to consider the
Rosetta expanded shared cache. This patch and it dependencies move that
logic out of PlatfromRemoteDarwinDevice into a new abstract class called
PlatfromDarwinDevice. The new platform sit in between PlatformDarwin and
PlatformMacOSX and PlatformRemoteDarwinDevice and has all the necessary
logic to deal with the device support directory.

Technically I could have moved everything in PlatfromDarwinDevice into
PlatfromDarwin but decided that this logic is sufficiently self
contained that it warrants its own abstraction.

rdar://91966349

Differential revision: https://reviews.llvm.org/D124801

2 years ago[RISCV] Precommit test cases for (uaddo X, C)
Hsiangkai Wang [Thu, 28 Apr 2022 09:02:54 +0000 (09:02 +0000)]
[RISCV] Precommit test cases for (uaddo X, C)

Differential Revision: https://reviews.llvm.org/D124602

2 years ago[RISCV][TargetLowering] Special case overflow expansion for (uaddo X, C).
Hsiangkai Wang [Thu, 28 Apr 2022 23:14:48 +0000 (23:14 +0000)]
[RISCV][TargetLowering] Special case overflow expansion for (uaddo X, C).

Follow-up to D122933.

Differential Revision: https://reviews.llvm.org/D124374

2 years ago[RISCV] Add isCommutable to FADD/FMUL/FMIN/FMAX/FEQ.
Craig Topper [Tue, 3 May 2022 02:43:05 +0000 (19:43 -0700)]
[RISCV] Add isCommutable to FADD/FMUL/FMIN/FMAX/FEQ.

Reviewed By: arcbbb

Differential Revision: https://reviews.llvm.org/D123972

2 years ago[AMDGPU] Fix scalar_to_vector for v8i16/v8f16
hsmahesha [Mon, 2 May 2022 20:55:07 +0000 (02:25 +0530)]
[AMDGPU] Fix scalar_to_vector for v8i16/v8f16

so that the stack access is avoided.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D124734

2 years ago[AMDGPU][NFC] Make lowerINSERT_VECTOR_ELT() more readable
hsmahesha [Sun, 1 May 2022 07:07:48 +0000 (12:37 +0530)]
[AMDGPU][NFC] Make lowerINSERT_VECTOR_ELT() more readable

by moving around the code and by adding more comments, which would
later help during any required clean-up.

Differential Revision: https://reviews.llvm.org/D124733

2 years ago[RISCV] Fix incorrect codegen for masked vmsge{u}.vx with mask agnostic.
Zakk Chen [Tue, 3 May 2022 00:08:23 +0000 (17:08 -0700)]
[RISCV] Fix incorrect codegen for masked vmsge{u}.vx with mask agnostic.

The result was totally wrong.
We could use mask undisturbed result to emulate the mask agnostic result.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D124684

2 years ago[gn build] Port 41c0ff1e740b
LLVM GN Syncbot [Tue, 3 May 2022 00:35:04 +0000 (00:35 +0000)]
[gn build] Port 41c0ff1e740b

2 years ago[lldb] Move GetSharedModuleWithLocalCache to PlatformDarwinDevice (NFC)
Jonas Devlieghere [Mon, 2 May 2022 19:52:39 +0000 (12:52 -0700)]
[lldb] Move GetSharedModuleWithLocalCache to PlatformDarwinDevice (NFC)

Refactoring in preparation of D124801.

Differential revision: https://reviews.llvm.org/D124800

2 years ago[lldb] Hoist device support out of PlatformRemoteDarwinDevice (NFC)
Jonas Devlieghere [Mon, 2 May 2022 16:03:58 +0000 (09:03 -0700)]
[lldb] Hoist device support out of PlatformRemoteDarwinDevice (NFC)

Refactoring in preparation of D124801.

Differential revision: https://reviews.llvm.org/D124799

2 years ago[lldb] Remove unused PlatformRemoteDarwinDevice::FindFileInAllSDKs
Jonas Devlieghere [Mon, 2 May 2022 23:21:21 +0000 (16:21 -0700)]
[lldb] Remove unused PlatformRemoteDarwinDevice::FindFileInAllSDKs

As far as I can tell this function is unused both upstream and
downstream.

2 years ago[lldb] Remove PlatformRemoteMacOSX::GetFileWithUUID overload (NFC)
Jonas Devlieghere [Mon, 2 May 2022 23:12:38 +0000 (16:12 -0700)]
[lldb] Remove PlatformRemoteMacOSX::GetFileWithUUID overload (NFC)

There's no reason PlatformRemoteMacOSX has to override GetFileWithUUID.

2 years ago[Driver][test] Remove clang{{.*}} when testing -cc1 command lines
Weverything [Tue, 3 May 2022 00:08:20 +0000 (17:08 -0700)]
[Driver][test] Remove clang{{.*}} when testing -cc1 command lines

The majority of tests omit testing "clang" for -cc1 command lines. In addition,
some distributions symlink %clang to an executable with a content hash based
filename so clang{{.*}} check won't work.

With this change, we can remove many -no-canonical-prefixes whose purpose was to
make the tests pass on such distributions.

2 years ago[DAGCombiner] reassociationCanBreakAddressingModePattern should check uses of the...
Craig Topper [Mon, 2 May 2022 23:21:50 +0000 (16:21 -0700)]
[DAGCombiner] reassociationCanBreakAddressingModePattern should check uses of the outer add.

When looking for memory uses,
reassociationCanBreakAddressingModePattern should check uses of
the outer ADD rather than the inner ADD. We want to know if the
two ops we're reassociating are used by a load/store.

In practice, the existing check usually works because CodeGenPrepare
will make one of the load/stores have an offset of 0 relative to
split GEP. That will make the inner add have a memory use.

To test this, I've manually split the GEPs so there is no 0 offset
store.

This issue was recently discussed in the original review D60294.

Reviewed By: luismarques

Differential Revision: https://reviews.llvm.org/D124644

2 years agoAdd transparency report.
Tanya Lattner [Mon, 2 May 2022 23:29:15 +0000 (16:29 -0700)]
Add transparency report.

2 years ago[mlir][LLVMIR] Add support for translating FCmp & FP constants
Min-Yih Hsu [Thu, 21 Apr 2022 00:46:16 +0000 (17:46 -0700)]
[mlir][LLVMIR] Add support for translating FCmp & FP constants

This patch add supports for translating FCmp and more kinds of FP
constants in addition to 32 & 64-bit ones. However, we can't express
ppc_fp128 constants right now because the semantics for its underlying
APFloat is `S_PPCDoubleDouble` but mlir::FloatType doesn't support such
semantics right now.

Differential Revision: https://reviews.llvm.org/D124630

2 years ago[NFC] Add missing switch cases
Chris Bieneman [Mon, 2 May 2022 23:13:07 +0000 (18:13 -0500)]
[NFC] Add missing switch cases

This silences warnings encountered on some bots.

2 years agoAMDGPU/SDAG: Factor out the fold (add (mul x, y), y) --> mad_[iu]64_[iu]32
Nicolai Hähnle [Wed, 13 Apr 2022 01:37:44 +0000 (20:37 -0500)]
AMDGPU/SDAG: Factor out the fold (add (mul x, y), y) --> mad_[iu]64_[iu]32

Refactor to simplify a follow-up change.

No functional change intended. However, there is a rather subtle logic
change: the subsequent combines (e.g. reassociation) are skipped *always*
when one of the operands of the add is a mul, instead of only when
additionally mad64_32 etc. are available. This change makes sense because
the subsequent combines should never apply when one of the operands is a
mul.

Differential Revision: https://reviews.llvm.org/D123833

2 years ago[gn build] Port 4070aa01561c
LLVM GN Syncbot [Mon, 2 May 2022 22:32:10 +0000 (22:32 +0000)]
[gn build] Port 4070aa01561c

2 years agoRevert "[DeadArgElim] Set unused arguments for internal functions"
Vitaly Buka [Mon, 2 May 2022 22:10:26 +0000 (15:10 -0700)]
Revert "[DeadArgElim] Set unused arguments for internal functions"

Breaks bots, see https://reviews.llvm.org/D124699

This reverts commit e547a333a43348a8a7ec9460f37696ecc5453e56.