Commit Graph

34 Commits

Author SHA1 Message Date
Saiyedul Islam 2bfce22a92 [OpenMP] Upgrade default version of OpenMP to 5.0
Summary:
When -fopenmp option is specified then version 5.0 will be set as
default.

Reviewers: gregrodgers, jdoerfert, ABataev

Reviewed By: ABataev

Subscribers: pdhaliwal, yaxunl, guansong, sstefan1, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D81098
2020-06-25 07:13:05 +00:00
Fangrui Song dbc96b518b Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition"
This reverts commit 789a46f2d7.

Accidentally committed.
2020-02-03 10:09:39 -08:00
Fangrui Song 789a46f2d7 [CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition
Summary:
Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults
to -fsemantic-interposition).
Users need to specify -fsemantic-interposition to get semantic
interposition behavior.

Semantic interposition is currently a best-effort feature. There may
still be some cases where it is not handled well.

Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert

Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73865
2020-02-03 09:52:48 -08:00
Martin Storsjö 810b28edb3 [ItaniumCXXABI] Make tls wrappers properly comdat
Just marking a symbol as weak_odr/linkonce_odr isn't enough for
actually tolerating multiple copies of it at linking on windows,
it has to be made a proper comdat; make it comdat for all platforms
for consistency.

This should hopefully fix
https://bugzilla.mozilla.org/show_bug.cgi?id=1566288.

Differential Revision: https://reviews.llvm.org/D71572
2020-01-13 23:36:26 +02:00
Tim Northover a009a60a91 IR: print value numbers for unnamed function arguments
For consistency with normal instructions and clarity when reading IR,
it's best to print the %0, %1, ... names of function arguments in
definitions.

Also modifies the parser to accept IR in that form for obvious reasons.

llvm-svn: 367755
2019-08-03 14:28:34 +00:00
Joel E. Denny 91f8066d1d [OpenMP] Set pragma start loc to `#pragma` loc
This patch adjusts `PragmaOpenMPHandler` to set the location of
`tok::annot_pragma_openmp` to the `#pragma` location instead of the
`omp` location so that the former becomes the start location of the
OpenMP AST node.  This can be useful when, for example, rewriting a
directive using Clang's Rewrite facility.  Most of this patch updates
tests for changes to locations in diagnostics and `-ast-dump` output.

Reviewed By: ABataev, lebedev.ri, Meinersbur, aaron.ballman

Differential Revision: https://reviews.llvm.org/D61509

llvm-svn: 361867
2019-05-28 19:27:19 +00:00
Sean Fertile d900dd0c23 Revert "[CodeGenCXX] Treat 'this' as noalias in constructors"
This reverts commit https://reviews.llvm.org/rL344150 which causes
MachineOutliner related failures on the ppc64le multistage buildbot.

llvm-svn: 344526
2018-10-15 15:43:00 +00:00
Anton Bikineev cc7e74753a [CodeGenCXX] Treat 'this' as noalias in constructors
This is currently a clang extension and a resolution
of the defect report in the C++ Standard.

Differential Revision: https://reviews.llvm.org/D46441

llvm-svn: 344150
2018-10-10 16:14:51 +00:00
Mike Rice e1ca7b614f [OPENMP] Create non-const ident_t objects.
Currently ident_t objects are created const when debug info is not
enabled, but the libittnotify libray in the OpenMP runtime writes to
the reserved_2 field (See __kmp_itt_region_forking in
openmp/runtime/src/kmp_itt.inl).  Now create ident_t objects non-const.

Differential Revision: https://reviews.llvm.org/D51331

llvm-svn: 340934
2018-08-29 15:45:11 +00:00
Alexey Bataev a8a9153a37 [OPENMP] Support for -fopenmp-simd option with compilation of simd loops
only.

Added support for -fopenmp-simd option that allows compilation of
simd-based constructs without emission of OpenMP runtime calls.

llvm-svn: 321560
2017-12-29 18:07:07 +00:00
Reid Kleckner 9de921470d [CodeGen] Treat auto-generated __dso_handle symbol as HiddenVisibility
Fixes https://bugs.llvm.org/show_bug.cgi?id=31932

Based on a patch by Roland McGrath

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D29843

llvm-svn: 294978
2017-02-13 18:49:21 +00:00
Richard Smith fbe2369f1a Improve handling of instantiated thread_local variables in Itanium C++ ABI.
* Do not initialize these variables when initializing the rest of the
   thread_locals in the TU; they have unordered initialization so they can be
   initialized by themselves.

   This fixes a rejects-valid bug: we would make the per-variable initializer
   function internal, but put it in a comdat keyed off the variable, resulting
   in link errors when the comdat is selected from a different TU (as the per
   TU TLS init function tries to call an init function that does not exist).

 * On Darwin, when we decide that we're not going to emit a thread wrapper
   function at all, demote its linkage to External. Fixes a verifier failure
   on explicit instantiation of a thread_local variable on Darwin.

llvm-svn: 291865
2017-01-13 00:43:31 +00:00
Charles Li fad02411e0 [Lit Test] Make tests C++11 compatible - nothrow destructors
In C++11, a destructor's implicit exception-spec is nothrow.
The IR for the destructor's invocation changed from invoke to call.

Differential Revision: https://reviews.llvm.org/D28425

llvm-svn: 291458
2017-01-09 18:24:16 +00:00
Reid Kleckner 7a2037151c Remove unnecessary x86 backend requirements from OpenMP tests
Clang can generate LLVM IR for x86 without a registered x86 backend.

llvm-svn: 284836
2016-10-21 16:09:20 +00:00
Adrian Prantl 1858c664de Debug info: Apply an empty debug location for global OpenMP destructors.
LLVM really wants a debug location on every inlinable call in a function
with debug info, because it otherwise cannot set up inlining debug info.

This change applies an artificial line 0 debug location (which is how
DWARF marks automatically generated code that has no corresponding
source code) to the .__kmpc_global_dtor_. functions to avoid the
LLVM Verifier complaining.

llvm-svn: 267369
2016-04-24 22:22:29 +00:00
Alexey Bataev c5b1d320b8 [OPENMP 4.0] Codegen for 'declare reduction' construct.
Emit function for 'combiner' part of 'declare reduction' construct and
'initialilzer' part, if any.

llvm-svn: 262699
2016-03-04 09:22:22 +00:00
Akira Hatanaka 26907f9236 [CodeGen] Attach attributes to thread local wrapper function.
This commit is a follow-up to r251734, r251476, and r249735, which fixes
a bug where function attributes were not attached to thread local
wrapper functions.

rdar://problem/20828324

llvm-svn: 257865
2016-01-15 03:34:06 +00:00
Manman Ren 14f88158c7 [TLS] move setting tls_guard in tls_init.
We used to emit the store prior to branch in the entry block. To make it more
efficient, this commit moves it to the init block. We still mark as initialized
before initializing anything else.

llvm-svn: 252777
2015-11-11 19:19:26 +00:00
Douglas Katzman 3459ce2e5e Stop messing with the 'g' group of options in CompilerInvocation.
With this change, most 'g' options are rejected by CompilerInvocation.
They remain only as Driver options. The new way to request debug info
from cc1 is with "-debug-info-kind={line-tables-only|limited|standalone}"
and "-dwarf-version={2|3|4}". In the absence of a command-line option
to specify Dwarf version, the Toolchain decides it, rather than placing
Toolchain-specific logic in CompilerInvocation.

Also fix a bug in the Windows compatibility argument parsing
in which the "rightmost argument wins" principle failed.

Differential Revision: http://reviews.llvm.org/D13221

llvm-svn: 249655
2015-10-08 04:24:12 +00:00
David Blaikie fc473554a6 [opaque pointer type] update test cases for explicit pointee types on global aliases
llvm-svn: 247380
2015-09-11 03:22:18 +00:00
Hans Wennborg 2151d12ec0 Fix CHECK directives that weren't checking.
llvm-svn: 246492
2015-08-31 21:48:52 +00:00
Samuel Antao 3e1ccbe8ba [OpenMP] Add REQUIRES pragma to threadprivate regression tests.
llvm-svn: 242090
2015-07-14 00:09:50 +00:00
Samuel Antao f8b5012dfb [OpenMP] Add TLS-based implementation for threadprivate directive.
llvm-svn: 242080
2015-07-13 22:54:53 +00:00
Adrian Prantl bc068586ac Revert "Revert r241620 and follow-up commits" and move the initialization
of the llvm targets from clang/CodeGen into ClangCheck.cpp and CIndex.cpp.

llvm-svn: 241653
2015-07-08 01:00:30 +00:00
Adrian Prantl 142ec39739 Revert r241620 and follow-up commits while investigating linux buildbot failures.
llvm-svn: 241642
2015-07-07 23:19:46 +00:00
Adrian Prantl e50371b948 Wrap clang modules and pch files in an object file container.
This patch adds ObjectFilePCHContainerOperations uses the LLVM backend
to put the contents of a PCH into a __clangast section inside a COFF, ELF,
or Mach-O object file container.

This is done to facilitate module debugging by makeing it possible to
store the debug info for the types defined by a module alongside the AST.

rdar://problem/20091852

llvm-svn: 241620
2015-07-07 20:11:29 +00:00
Alexey Bataev db39021cee [OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)
-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736

llvm-svn: 237769
2015-05-20 04:24:19 +00:00
Alexey Bataev 7c2ed44905 [OPENMP] Allow redeclaration of variables as threadprivate.
No need to emit an error message if the variable is redeclared as threadprivate.

llvm-svn: 234402
2015-04-08 12:45:41 +00:00
David Blaikie bdf40a62a7 Test case updates for explicit type parameter to the gep operator
llvm-svn: 232187
2015-03-13 18:21:46 +00:00
David Blaikie a953f2825b Update Clang tests to handle explicitly typed load changes in LLVM.
llvm-svn: 230795
2015-02-27 21:19:58 +00:00
David Blaikie 218b783192 Update Clang tests to handle explicitly typed gep changes in LLVM.
llvm-svn: 230783
2015-02-27 19:18:17 +00:00
Adrian Prantl cbc368c5b5 Revert "Wrap clang module files in a Mach-O, ELF, or COFF container."
llvm-svn: 230454
2015-02-25 02:44:04 +00:00
Adrian Prantl 8bf7af3de8 Wrap clang module files in a Mach-O, ELF, or COFF container.
This is a necessary prerequisite for debugging with modules.
The .pcm files become containers that hold the serialized AST which allows
us to store debug information in the module file that can be shared by all
object files that were built importing the module.

This reapplies r230044 with a fixed configure+make build and updated
dependencies and testcase requirements. Over the last iteration this
version adds
- missing target requirements for testcases that specify an x86 triple,
- a missing clangCodeGen.a dependency to libClang.a in the make build.

rdar://problem/19104245

llvm-svn: 230423
2015-02-25 01:31:45 +00:00
Alexey Bataev 9772000a22 [OPENMP] Codegen for threadprivate variables
For all threadprivate variables which have constructor/destructor emit call to void __kmpc_threadprivate_register(ident_t * <Current Location>, void *<Original Global Addr>, kmpc_ctor <Constructor>, kmpc_cctor NULL, kmpc_dtor <Destructor>); 
In expressions all references to such variables are replaced by calls to void *__kmpc_threadprivate_cached(ident_t *<Current Location>, kmp_int32 <Current Thread Id>, void *<Original Global Addr>, size_t <Size of Data>, void ***<Pointer to autogenerated cache – array of private copies of threadprivate variable>);
Test test/OpenMP/threadprivate_codegen.cpp checks that codegen is correct. Also it checks that codegen is correct after serialization/deserialization and one of passes verifies debug info.
Differential Revision: http://reviews.llvm.org/D4002

llvm-svn: 221663
2014-11-11 04:05:39 +00:00