Summary:
Currently we can't install the modulemaps provided by LLVM, since they are not structured to support headers generated as part of the build (ex. `llvm/IR/Attributes.gen`).
This patch restructures the module maps in order to support installation.
Modules containing generated headers are defined in the new `module.extern.modulemap` file, and are referenced from the main `module.modulemap` using `extern module`. There are two versions of the `module.extern.modulemap` file; one used when building and another, `module.install.modulemap`, which is re-named during installation.
Users can opt-into module map installation using `-DLLVM_INSTALL_MODULEMAPS=ON`. The default value is `OFF` due to llvm.org/PR31905.
Reviewers: rsmith, mehdi_amini, bruno, EricWF
Reviewed By: EricWF
Subscribers: tschuett, chapuni, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D53510
llvm-svn: 347420
Summary:
D48660 / rL335762 added a `silence_unsigned_overflow` env flag for [[ https://github.com/google/oss-fuzz/pull/1717 | oss-fuzz needs ]],
that allows to silence the reports from unsigned overflows.
It makes sense, it is there because `-fsanitize=integer` sanitizer is not enabled on oss-fuzz,
so this allows to still use it as an interestingness signal, without getting the actual reports.
However there is a slight problem here.
All types of unsigned overflows are ignored.
Even if `-fno-sanitize-recover=unsigned` was used (which means the program will die after the report)
there will still be no report, the program will just silently die.
At the moment there are just two projects on oss-fuzz that care:
* [[ 8eeffa627f/projects/llvm_libcxx/build.sh (L18-L20) | libc++ ]]
* [[ 8eeffa627f/projects/librawspeed/build.sh | RawSpeed ]] (me)
I suppose this could be overridden there ^, but i really don't think this is intended behavior in any case..
Reviewers: kcc, Dor1s, #sanitizers, filcab, vsk, kubamracek
Reviewed By: Dor1s
Subscribers: dberris, mclow.lists, llvm-commits
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D54771
llvm-svn: 347415
Sanitizer runtime link deps handling passes --no-as-needed because of
PR15823, but it never undoes it and this flag may affect other libraries
that come later on the link line. To avoid this, wrap Sanitizer link
deps in --push/pop-state.
Differential Revision: https://reviews.llvm.org/D54805
llvm-svn: 347413
Summary: Right now only some platforms add pthread to the compilation, however, at least one of the tests requires the pthread library on Linux as well. Since the library is available, this change adds it by default on Linux.
Reviewers: labath, zturner, asmith
Subscribers: stella.stamenova, jfb, lldb-commits
Differential Revision: https://reviews.llvm.org/D54808
llvm-svn: 347412
This patch refactor the code for parsing omp declare target directive and
its clauses.
Patch by pjeeva01 (Jeeva P.)
Differential Revision: https://reviews.llvm.org/D54708
llvm-svn: 347411
Loop-control variables with the default data-sharing attributes should
not be captured in the OpenMP region as they are private by default.
Also, default attributes should be emitted for such variables in the
inner OpenMP regions for the correct data sharing during codegen.
llvm-svn: 347409
Whether the map type modifier is specified or not, the flag
MapTypeModifierSpecified is always set to true.
Patch by Ahsan Saghir
Differential Revision: https://reviews.llvm.org/D54638
llvm-svn: 347408
The MergeFunctions pass was originally intended to emit aliases
instead of thunks where possible (unnamed_addr). However, for a
long time this functionality was behind a flag hardcoded to false,
bitrotted and was eventually removed in r309313.
Originally the functionality was first disabled in r108417 due to
lack of support for aliases in Mach-O. I believe that this is no
longer the case nowadays, but not really familiar with this area.
In the interest of being conservative, this patch reintroduces the
aliasing functionality behind a default disabled -mergefunc-use-aliases
flag.
Differential Revision: https://reviews.llvm.org/D53285
llvm-svn: 347407
forms of random access iterator
In OpenMP 4.5, only 4 relational operators are supported: <, <=, >,
and >=. This work is to enable support for relational operator
!= (not-equal) as one of the canonical forms.
Patch by Anh Tuyen Tran
Differential Revision: https://reviews.llvm.org/D54441
llvm-svn: 347405
Summary:
This fixes PR39711: -static -z retpolineplt does not produce retpoline PLT header.
-z now is not relevant.
Statically linked executable does not have PLT, but may have IPLT with no header. When -z retpolineplt is specified, however, the repoline PLT header should still be emitted.
I've checked that this fixes the FreeBSD reproduce in PR39711 and a Linux program statically linked against glibc. The programm print "Hi" rather than SIGILL/SIGSEGV.
getPltEntryOffset may look dirty after this patch, but it can be cleaned up later.
Another possible improvement is that when there are non-preemptible IFUNC symbols (rare case, e.g. -Bsymbolic), both In.Plt and In.Iplt can be non-empty and we'll emit the retpoline PLT header twice.
Reviewers: espindola, emaste, chandlerc, ruiu
Reviewed By: emaste
Subscribers: emaste, arichardson, krytarowski, llvm-commits
Differential Revision: https://reviews.llvm.org/D54782
llvm-svn: 347404
r347395 changed the ABI list on Linux, but two of those symbols are still
being exported from the shared object:
_ZSt18make_exception_ptrINSt3__112future_errorEESt13exception_ptrT_
_ZNSt3__1plIcNS_11char_traitsIcEENS_9allocatorIcEEEENS_12basic_stringIT_T0_T1_EERKS9_PKS6_
This commit makes sure those symbols are not exported, as they should be.
llvm-svn: 347399
R_MIPS_JALR/R_MICROMIPS_JALR can now be parsed in .s files and emitted to .o.
They are still not generated with JALR.
Differential revision: https://reviews.llvm.org/D54721
llvm-svn: 347398
Currently, expressions like
.reloc 1f, R_MIPS_JALR, foo
1: nop
are not allowed, ie. an offset in .reloc can only be absolute value.
This patch adds support for labels as offsets.
If offset is a forward declared label, MCObjectStreamer keeps the fixup locally
and adds it to the fixups vector after the label (and its offset) is defined.
label+number is not supported yet.
Differential revision: https://reviews.llvm.org/D53990
llvm-svn: 347397
Summary:
This commit marks a few functions as hidden and removes them from the ABI list
on Linux such that libc++ can be built with -fvisibility=hidden. The functions
marked as hidden by this patch were exported from the shared object only
because they were implicitly instantiated function templates. It is safe
to stop exporting those symbols from the shared object because nobody could
actually depend on them: implicit instantiations are not taken from shared
objects.
The symbols removed in this commit are basically the same that had been
removed in https://reviews.llvm.org/D53868, but that patch had to be reverted
because it broke the build (because the functions were not marked as hidden
like this patch does).
Reviewers: EricWF, mclow.lists
Subscribers: christof, jkorous, dexonsmith, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54639
llvm-svn: 347395
When REQUIRES: ARM is used the test is skipped as ARM is not recognized.
Change to REQUIRES: arm so that it is run. This required updating one of the
tests due to changes in expected output.
Differential Revision: https://reviews.llvm.org/D54786
llvm-svn: 347388
Add missing linkage from Nios2CodeGen library to Nios2AsmPrinter
library. The missing dependency causes shared-lib build to fail with
the following reason:
lib/Target/Nios2/CMakeFiles/LLVMNios2CodeGen.dir/Nios2AsmPrinter.cpp.o: In function `(anonymous namespace)::Nios2AsmPrinter::PrintAsmMemoryOperand(llvm::MachineInstr const*, unsigned int, unsigned int, char const*, llvm::raw_ostream&)':
Nios2AsmPrinter.cpp:(.text._ZN12_GLOBAL__N_115Nios2AsmPrinter21PrintAsmMemoryOperandEPKN4llvm12MachineInstrEjjPKcRNS1_11raw_ostreamE+0x2b): undefined reference to `llvm::Nios2InstPrinter::getRegisterName(unsigned int)'
lib/Target/Nios2/CMakeFiles/LLVMNios2CodeGen.dir/Nios2AsmPrinter.cpp.o: In function `(anonymous namespace)::Nios2AsmPrinter::PrintAsmOperand(llvm::MachineInstr const*, unsigned int, unsigned int, char const*, llvm::raw_ostream&)':
Nios2AsmPrinter.cpp:(.text._ZN12_GLOBAL__N_115Nios2AsmPrinter15PrintAsmOperandEPKN4llvm12MachineInstrEjjPKcRNS1_11raw_ostreamE+0x97): undefined reference to `llvm::Nios2InstPrinter::getRegisterName(unsigned int)'
collect2: error: ld returned 1 exit status
Differential Revision: https://reviews.llvm.org/D47810
llvm-svn: 347387
Add pthread_tryjoin_np() and pthread_timedjoin_np() interceptors on Linux,
so that ThreadSanitizer can handle programs using these functions.
Author: Yuri Per (yuri)
Reviewed in: https://reviews.llvm.org/D54521
llvm-svn: 347383
LVI was symbolically executing binary operators only when the RHS was
constant, missing the case where we have a ConstantRange for the RHS,
but not an actual constant. Tested using check-all and by
bootstrapping. Compile time is not impacted measurably.
Differential Revision: https://reviews.llvm.org/D19859
llvm-svn: 347379
Even though these deps weren't needed, this makes Fuchsia driver
better match other drivers, and it may be necessary when trying to
use different C libraries on Fuchsia.
Differential Revision: https://reviews.llvm.org/D54741
llvm-svn: 347378
We have efficient codegen on P9 for lowering bswap that involves moving
the value into a vector reg and moving it back. However, the check under
which we custom lowered it did not adequately reflect the actual requirements.
It required only that the subtarget be an implementation of ISA 3.0 since all
compliant implementations have to provide the vector instructions.
However, the kernel builds have a valid use case for -mno-altivec -mcpu=pwr9
(i.e. don't emit vector code, don't have to save vector regs for context
switch). So we should require the correct features for this lowering.
Fixes https://bugs.llvm.org/show_bug.cgi?id=39334
llvm-svn: 347376
These are AVX2 instructions, but have been incorrectly marked in tablegen for a while. This wasn't a problem until r346784 switched the patterns to use target independent ISD opcodes. This made the patterns visible to fast isel.
Fixes PR39733
llvm-svn: 347375
These offsets are useless (and even harmful in certain cases) in exported
diagnostics. The test will be added to clang-tidy, since it's the main user of
the clang::tooling::Diagnostic class.
llvm-svn: 347372
Eric Fiselier