83210 Commits

Author SHA1 Message Date
Nico Weber
e875ba1509 Try again to get tests passing again on Windows.
Things pass locally, but some tests on some bots are still unhappy.
I'm not sure why. See if using forward slashes as before helps.
2020-04-02 20:00:38 -04:00
Matt Arsenault
ce2258c1cd clang/AMDGPU: Stop setting old denormal subtarget features 2020-04-02 17:17:12 -04:00
Nico Weber
a16ba6fea2 Reland "Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang"
The problem on Windows was that the \b in "..\bin" was interpreted
as an escape sequence. Use r"" strings to prevent that.

This reverts commit ab11b9eefa16661017c2c7b3b34c46b069f43fb7,
with raw strings in the lit.site.cfg.py.in files.

Differential Revision: https://reviews.llvm.org/D77184
2020-04-02 16:12:03 -04:00
Nico Weber
ab11b9eefa Revert "Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang"
This reverts commit fb80b6b2d58c476747a3206bd4371b787108591b and
follow-up 631ee8b24adf36359b61ecb47484e8e82de35be8.

Seems to not work on Windows:
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/31684
http://lab.llvm.org:8011/builders/llvm-clang-win-x-aarch64/builds/6512

Let's revert while I investigate.
2020-04-02 15:00:09 -04:00
Nico Weber
fb80b6b2d5 Make it possible for lit.site.cfg to contain relative paths, and use it for llvm and clang
Currently, all generated lit.site.cfg files contain absolute paths.

This makes it impossible to build on one machine, and then transfer the
build output to another machine for test execution. Being able to do
this is useful for several use cases:

1. When running tests on an ARM machine, it would be possible to build
   on a fast x86 machine and then copy build artifacts over after building.

2. It allows running several test suites (clang, llvm, lld) on 3
   different machines, reducing test time from sum(each test suite time) to
   max(each test suite time).

This patch makes it possible to pass a list of variables that should be
relative in the generated lit.site.cfg.py file to
configure_lit_site_cfg(). The lit.site.cfg.py.in file needs to call
`path()` on these variables, so that the paths are converted to absolute
form at lit start time.

The testers would have to have an LLVM checkout at the same revision,
and the build dir would have to be at the same relative path as on the
builder.

This does not yet cover how to figure out which files to copy from the
builder machine to the tester machines. (One idea is to look at the
`--graphviz=test.dot` output and copy all inputs of the `check-llvm`
target.)

Differential Revision: https://reviews.llvm.org/D77184
2020-04-02 13:53:16 -04:00
Gabor Marton
1525232e27 [analyzer] StdLibraryFunctionsChecker: fix bug with arg constraints
Summary:
Previously we induced a state split if there were multiple argument
constraints given for a function. This was because we called
`addTransition` inside the for loop.
The fix is to is to store the state and apply the next argument
constraint on that. And once the loop is finished we call `addTransition`.

Reviewers: NoQ, Szelethus, baloghadamsoftware

Subscribers: whisperity, xazax.hun, szepet, rnkovacs, a.sidorin, mikhail.ramalho, donat.nagy, dkrupp, gamesh411, C

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76790
2020-04-02 17:00:11 +02:00
Aaron Ballman
54d0a55d7f Fix several typos in the attribute documentation. 2020-04-02 10:31:39 -04:00
Alexey Bataev
13a1504ffb [OPENMP50]Add initial support for OpenMP 5.0 iterator.
Added basic parsing/semantic analysis/(de)serialization support for
iterator expression introduced in OpenMP 5.0.
2020-04-02 08:28:15 -04:00
Sven van Haastregt
9da6a40e09 [OpenCL] Add sub-group builtin functions
Add the sub-group builtin functions from the OpenCL Extension
specification.  This patch excludes the sub_group_barrier builtins
that take argument types not yet handled by the
`-fdeclare-opencl-builtins` machinery.

Co-authored-by: Pierre Gondois <pierre.gondois@arm.com>
2020-04-02 13:18:56 +01:00
Lucas Prates
e6cb4b659a [Clang][CodeGen] Fixing mismatch between memory layout and const expressions for oversized bitfields
Summary:
The construction of constants for structs/unions was conflicting the
expected memory layout for over-sized bit-fields. When building the
necessary bits for those fields, clang was ignoring the size information
computed for the struct/union memory layout and using the original data
from the AST's FieldDecl information. This caused an issue in big-endian
targets, where the field's contant was incorrectly misplaced due to
endian calculations.

This patch aims to separate the constant value from the necessary
padding bits, using the proper size information for each one of them.
With this, the layout of constants for over-sized bit-fields matches the
ABI requirements.

Reviewers: rsmith, eli.friedman, efriedma

Reviewed By: efriedma

Subscribers: efriedma, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77048
2020-04-02 11:55:20 +01:00
Daniel Kiss
37ced5a571 [clang][AARCH64] Add __ARM_FEATURE_{PAC, BTI}_DEFAULT defines
Summary:
As defined by Arm C Language Extensions (ACLE) these macro defines
should be set to specific values depending on -mbranch-protection.

Reviewers: chill

Reviewed By: chill

Subscribers: danielkiss, cfe-commits, kristof.beyls

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77134
2020-04-02 12:54:21 +02:00
Daniel Kiss
7314aea5a4 [clang] Move branch-protection from CodeGenOptions to LangOptions
Summary:
Reason: the option has an effect on preprocessing.

Also see thread: http://lists.llvm.org/pipermail/cfe-dev/2020-March/065014.html

Reviewers: chill, efriedma

Reviewed By: efriedma

Subscribers: efriedma, danielkiss, cfe-commits, kristof.beyls

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77131
2020-04-02 10:31:52 +02:00
WangTianQing
d08fadd662 [X86] Add SERIALIZE instruction.
Summary: For more details about this instruction, please refer to the latest ISE document: https://software.intel.com/en-us/download/intel-architecture-instruction-set-extensions-programming-reference

Reviewers: craig.topper, RKSimon, LuoYuanke

Reviewed By: craig.topper

Subscribers: mgorny, hiraditya, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77193
2020-04-02 16:19:23 +08:00
Johannes Doerfert
1858f4b50d Revert "[OpenMP][NFCI] Move OpenMP clause information to lib/Frontend/OpenMP"
This reverts commit c18d55998b3352e6ec92ccb8a3240a16a57c61e6.

Bots have reported uses that need changing, e.g.,
  clang-tools-extra/clang-tidy/openmp/UseDefaultNoneCheck.cp
as reported by
  http://lab.llvm.org:8011/builders/clang-ppc64be-linux/builds/46591
2020-04-02 02:23:22 -05:00
Johannes Doerfert
c18d55998b [OpenMP][NFCI] Move OpenMP clause information to lib/Frontend/OpenMP
This is a cleanup and normalization patch that also enables reuse with
Flang later on. A follow up will clean up and move the directive ->
clauses mapping.

Differential Revision: https://reviews.llvm.org/D77112
2020-04-02 01:39:07 -05:00
Johannes Doerfert
b0b5f0416b [OpenMP][FIX] Undo changes accidentally already introduced in NFC commit
In d1705c1196fe (D77238) we accidentally included subsequent changes and
did not only move the code into a new file (which was the intention).
We undo the changes now and re-introduce them with the appropriate test
changes later.
2020-04-02 01:33:39 -05:00
Johannes Doerfert
410cfc478f [OpenMP][FIX] Add second include after header was split in d1705c1196
The math wrapper handling is going to be replaced shortly and
d1705c1196fedfe927716923ac121f1134924a36 was actually a precursor for
that.
2020-04-02 00:20:23 -05:00
Johannes Doerfert
d1705c1196 [CUDA][NFC] Split math.h functions out of __clang_cuda_device_functions.h
This is not supported to change anything but allow us to reuse the math
functions separately from the device functions, e.g., source them at
different times. This will be used by the OpenMP overlay.

This also adds two `return` keywords that were missing.

Reviewed By: tra

Differential Revision: https://reviews.llvm.org/D77238
2020-04-01 23:46:27 -05:00
Yaxun (Sam) Liu
5767085c8d Fix infinite recursion in deferred diag emitter
Currently deferred diagnostic emitter checks variable decl in DeclRefExpr, which
causes infinite recursion for cases like long a = (long)&a;.

Deferred diagnostic emitter does not need check variable decls in DeclRefExpr
since reference of a variable does not cause emission of functions directly or
indirectly. Therefore there is no need to check variable decls in DeclRefExpr.

Differential Revision: https://reviews.llvm.org/D76937
2020-04-01 22:17:43 -04:00
Adrian Prantl
f4754ea0ed Remove const qualifier from Modules returned by ExternalASTSource. (NFC)
This API is used by LLDB to attach owning module information to
Declarations deserialized from DWARF.

Differential Revision: https://reviews.llvm.org/D75561
2020-04-01 17:46:02 -07:00
Aaron Ballman
6e916b5860 Updating the documentation for the noescape attribute.
A question came up from a glibc maintainer as to whether it was permissible to
free a pointer marked [[clang::noescape]], and after investigation, I
determined that this is allowed. This updates the documentation in case others
have the same question.
2020-04-01 16:21:37 -04:00
David Blaikie
db92719c1d DebugInfo: Defaulted non-type template parameters of bool type
Caused an assertion due to mismatched bit widths - this seems like the
right API to use for a possibly width-varying equality test. Though
certainly open to some post-commit review feedback if there's a more
suitable way to do this comparison/test.
2020-04-01 13:21:13 -07:00
Alexey Bataev
c028472fa1 Revert "[OPENMP50]Add initial support for OpenMP 5.0 iterator."
This reverts commit f08df464ae89972a777c0a7e299a2c153a9829d8 to fix the
bug with serialization support for iterator expression.
2020-04-01 14:54:45 -04:00
Alexey Bataev
f08df464ae [OPENMP50]Add initial support for OpenMP 5.0 iterator.
Added basic parsing/semantic analysis/(de)serialization support for
iterator expression introduced in OpenMP 5.0.
2020-04-01 12:53:55 -04:00
Thomas Lively
95fac2e46b [WebAssembly] Rename SIMD min/max/avgr intrinsics for consistency
Summary:
The convention for the wasm_simd128.h intrinsics is to have the
integer sign in the lane interpretation rather than as a suffix. This
PR changes the names of the integer min, max, and avgr intrinsics to
match this convention.

Reviewers: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, sunfish, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77185
2020-04-01 09:38:41 -07:00
Matt Arsenault
4ea3650c21 HIP: Link correct denormal mode library
This wasn't respecting the flush mode based on the default, and also
wasn't correctly handling the explicit
-fno-cuda-flush-denormals-to-zero overriding the mode.
2020-04-01 12:36:22 -04:00
Matt Arsenault
6593360ee7 AMDGPU: Fix consistently backwards logic for default denormal mode
I forgot to squash this into c9d65a48af1d7bbfed7e785613cc9d9acf71821b
2020-04-01 12:36:22 -04:00
Arnold Schwaighofer
153dadf3a3 [clang] CodeGen: Make getOrEmitProtocol public for Swift
Summary:
Swift would like to use clang's apis to emit protocol declarations.

This commits adds the public API:

```
 emitObjCProtocolObject(CodeGenModule &CGM, const ObjCProtocolDecl *p);
```

rdar://60888524

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77077
2020-04-01 08:55:56 -07:00
Artem Dergachev
3500cc8d89 [analyzer] RetainCountChecker: Add a suppression for OSSymbols.
OSSymbol objects are particular XNU OSObjects that aren't really
reference-counted. Therefore you cannot do any harm by over- or
under-releasing them.
2020-04-01 18:16:44 +03:00
Puyan Lotfi
e3033c0ce5 [llvm][clang][IFS] Enhancing the llvm-ifs yaml format for symbol lists.
Prior to this change the clang interface stubs format resembled
something ending with a symbol list like this:

 Symbols:
   a: { Type: Func }

This was problematic because we didn't actually want a map format and
also because we didn't like that an empty symbol list required
"Symbols: {}". That is to say without the empty {} llvm-ifs would crash
on an empty list.

With this new format it is much more clear which field is the symbol
name, and instead the [] that is used to express an empty symbol vector
is optional, ie:

Symbols:
 - { Name: a, Type: Func }

or

Symbols: []

or

Symbols:

This further diverges the format from existing llvm-elftapi. This is a
good thing because although the format originally came from the same
place, they are not the same in any way.

Differential Revision: https://reviews.llvm.org/D76979
2020-04-01 10:49:06 -04:00
Raphael Isemann
08a53dba93 [clang] Minor cleanup in CloneDetectionTest
Follow up to e8f13f4f62f.
2020-04-01 10:48:50 +02:00
Vlastimil Labsky
57fd86de87 [AVR] Fix function pointer address space
Summary:
Function pointers should be created with program address space.
This fixes function pointers on AVR.

Reviewers: dylanmckay

Reviewed By: dylanmckay

Subscribers: Jim, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77119
2020-04-01 21:08:37 +13:00
Fangrui Song
531b3aff30 [Frontend] Replace CC1 option -masm-verbose with -fno-verbose-asm
Most OS✕target enable -fverbose-asm, so it makes sense to flip the CC1
option to reduce common command lines.
2020-03-31 22:33:55 -07:00
Fangrui Song
d0d076fed9 [Driver] Flip the CC1 default of -fdiagnostics-show-option
The driver enables -fdiagnostics-show-option by default, so flip the CC1
default to reduce the lengths of common CC1 command lines.

This change also makes ParseDiagnosticArgs() consistently enable
-fdiagnostics-show-option by default.
2020-03-31 21:59:27 -07:00
Ian Levesque
bb3111cbaf [clang][xray] Add xray attributes to functions without decls too
Summary: This allows instrumenting things like global initializers

Reviewers: dberris, MaskRay, smeenai

Subscribers: cfe-commits, johnislarry

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77191
2020-04-01 00:02:39 -04:00
Fangrui Song
3341dc7339 [Driver] Don't pass -fobjc-rumtime= for non-ObjC input 2020-03-31 17:50:37 -07:00
Weverything
f93aed66f2 Fix diagnostics where _Atomic can't be applied
adb290d97482aa9311ee4b4b5917a0f2ece55b30 added a new case to
err_atomic_specifier_bad_type.  The diagnostic has two %select's
controlled by the same argument, but only the first was updated to have
the new case.  Add the extra case for the second %select and add a
test case that exercises the last case.
2020-03-31 17:23:35 -07:00
Fangrui Song
4805901930 [Driver] Don't pass -fmessage-length=0 to CC1
-fmessage-length=0 is common (unless the environment variable COLUMNS
is set and exported. This simplifies a common CC1 command line.
2020-03-31 17:12:08 -07:00
Nico Weber
7ea64ae3af [analyzer] Use IgnoreImpCasts() instead of reimplementing it.
No intended behavior change.

Differential Revision: https://reviews.llvm.org/D77022
2020-03-31 19:32:55 -04:00
Ben Langmuir
c322d328aa Forward WrapperFrontendAction::shouldEraseOutputFiles()
Per the documentation, this class is supposed to forward every virtual
method, but we had missed on (shouldEraseOutputFiles). This fixes using
a wrapped frontend action over the PCH generator when using
-fallow-pch-with-compiler-errors. I do not think any upstream wrapper
actions can test this.

Differential Revision: https://reviews.llvm.org/D77180

rdar://61110294
2020-03-31 16:20:23 -07:00
Alexey Bataev
39ada46889 [OPENMP][DOCS]Mark array shaping as done, NFC. 2020-03-31 19:12:52 -04:00
Alexey Bataev
c2aa543237 [OPENMP50]Codegen for array shaping expression in map clauses.
Added codegen support for array shaping operations in map/to/from
clauses.
2020-03-31 19:06:49 -04:00
Alexey Bataev
e094dd5adc [OPENMP50]Fix size calculation for array shaping expression in the
codegen.

Need to include the size of the pointee type when trying to calculate
the total size of the array shaping expression.
2020-03-31 18:45:21 -04:00
Matt Arsenault
175e42303b AMDGPU: Make HIPToolChain a subclass of AMDGPUToolChain
This fixes some code duplication. This is also a step towards
consolidating builtin library handling.
2020-03-31 18:22:46 -04:00
Matt Arsenault
c9d65a48af HIP: Ensure new denormal mode attributes are set
Apparently HIPToolChain does not subclass from AMDGPUToolChain, so
this was not applying the new denormal attributes. I'm not sure why
this doesn't subclass. Just copy the implementation for now.
2020-03-31 18:00:37 -04:00
Alexey Bataev
9b3bf72a0d [OPENMP50]Allow use of array shaping expression in a list.
Need to allow arrayshaping expression in a list of expressions, so use
ParseAssignmentExpression() when try to parse the base of the shaping
operation.
2020-03-31 17:15:31 -04:00
Ben Langmuir
cc3fddb411 [pch] Honour -fallow-pch-with-compiler-errors for overall compilation status
Previously we would emit a PCH with errors, but fail the overall
compilation. If run using the driver, that would result in removing the
just-produced PCH. Instead, we should have the compilation result match
whether we were able to emit the PCH.

Differential Revision: https://reviews.llvm.org/D77159

rdar://61110294
2020-03-31 13:50:12 -07:00
Sergej Jaskiewicz
9a6a696817 [cmake] Link libc++ tests against static libc++/libc++abi in CrossWinToARMLinux.cmake
Summary: Now that D72687 has landed, we can enable this setting in our cache file.

Reviewers: vvereschaka

Reviewed By: vvereschaka

Subscribers: mgorny, kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76774
2020-03-31 23:36:36 +03:00
Anna Thomas
58a05675da Revert "[InlineFunction] Handle return attributes on call within inlined body"
This reverts commit 28518d9ae39ff5c6044e230d58b6ae28b0252cae.
There is a failure in MsgPackReader.cpp when built with clang. It
complains about "signext and zeroext" are incompatible. Investigating
offline if it is infact a UB in the MsgPackReader code.
2020-03-31 16:16:34 -04:00
Eli Friedman
1ee6ec2bf3 Remove "mask" operand from shufflevector.
Instead, represent the mask as out-of-line data in the instruction. This
should be more efficient in the places that currently use
getShuffleVector(), and paves the way for further changes to add new
shuffles for scalable vectors.

This doesn't change the syntax in textual IR. And I don't currently plan
to change the bitcode encoding in this patch, although we'll probably
need to do something once we extend shufflevector for scalable types.

I expect that once this is finished, we can then replace the raw "mask"
with something more appropriate for scalable vectors.  Not sure exactly
what this looks like at the moment, but there are a few different ways
we could handle it.  Maybe we could try to describe specific shuffles.
Or maybe we could define it in terms of a function to convert a fixed-length
array into an appropriate scalable vector, using a "step", or something
like that.

Differential Revision: https://reviews.llvm.org/D72467
2020-03-31 13:08:59 -07:00