llvm-svn: 307626

querying for analysis results on a function declaration rather than
a definition.

The only reason this worked previously is by chance -- because the way
we got alias analysis results with the legacy PM, we happened to not
compute a dominator tree and so we happened to not hit an assert even
though it didn't make any real sense. Now we bail out before trying to
compute alias analysis so that we don't hit these asserts.

llvm-svn: 307625

In the POWER9 instruction scheduler, SchedWriteRes for the simple integer instructions are misconfigured to use that of (costly) DFU instructions.
This results in surprisingly long instruction latency estimation and causes misbehavior in some optimizers such as if-conversion.

Differential Revision: https://reviews.llvm.org/D34869

llvm-svn: 307624

This patch reduces compilation time by avoiding redundant analysis while selecting instructions to create an immediate.
If the instruction count required to create the input number without rotate is 2, we do not need further analysis to find a shorter instruction sequence with rotate; rotate + load constant cannot be done by 1 instruction (i.e. getInt64CountDirectnever return 0).
This patch should not change functionality.

Differential Revision: https://reviews.llvm.org/D34986

llvm-svn: 307623

llvm-svn: 307622

llvm-svn: 307621

It will only ever contain one register.

llvm-svn: 307620

llvm-svn: 307619

DumpDataExtractor.  Patch from Jeffrey Crowell,

https://reviews.llvm.org/D34929

llvm-svn: 307618

llvm-svn: 307617

This is going to be used by the runtime build in the multi-target
setup to allow using different install prefix for each target.

Differential Revision: https://reviews.llvm.org/D33762

llvm-svn: 307615

llvm-svn: 307614

Revert r307581, "Avoid doing conservative phi checks in aliasSameBasePointerGEPs() if no phis have been visited yet."

It broke stage2 tests in selfhosting.

llvm-svn: 307613

Differential Revision: https://reviews.llvm.org/D35233

llvm-svn: 307612

This is going to be used by the runtime build in the multi-target
setup to allow using different install prefix for each target.

Differential Revision: https://reviews.llvm.org/D33761

llvm-svn: 307611

PR30735 reports an issue where llvm-cov hangs with a worker thread
waiting on a condition, and the main thread waiting to join() the
workers. While this doesn't appear to be a bug in llvm-cov or the
ThreadPool implementation, it would be helpful to disable the use of
threading in the llvm-cov tests where no test coverage is added.

More context: https://bugs.llvm.org/show_bug.cgi?id=30735

llvm-svn: 307610

When an output directory is specified, llvm-cov spawns some threads to
speed up the process of writing out file reports. Add an option which
allows users to control how many threads llvm-cov uses.

A CommandGuide.rst update + test is included.

llvm-svn: 307609

This takes memory usage from 5.1GB to 970MB - it could go further by
using a small size of 2 instead of the default of 4, but given the
rather high cost of going over this limit by much, I figured a little
slosh would be worth the ~130MB of memory usage.

& this'll might not be such a big deal if we use a custom slab allocator
for the DenseMaps here anyway

While the vast majority (99.9%) of records use only 1 entry, the tuning
parameter to SmallDenseMap is the the number of buckets, not the number
of entries - so a small size of 1 wasn't useful, even for 1 element, it
would tip over into allocating (much, 64 slots worth) more space - none
of them ended up small.

llvm-svn: 307608

Haiku uses GNU ld for linking, but is not captured in the
conditional when setting LIB_NAMES. This causes a shared
library with no symbols on Haiku. This patch simply adds
a check for whether the CMake system name is Haiku in
addition to the existing checks.

Patch by Jérôme Duval.

Differential Revision: https://reviews.llvm.org/D34998

llvm-svn: 307607

This is going to be used by the runtime build in the multi-target
setup to allow using different install prefix for each target.

Differential Revision: https://reviews.llvm.org/D33760

llvm-svn: 307606

llvm-svn: 307605

This is a follow up for one of 
the previous diffs https://reviews.llvm.org/D32328.
getTypeSize and with getIntWidth are not equivalent for bool 
(see https://clang.llvm.org/doxygen/ASTContext_8cpp_source.html#l08444),
this causes a number of issues
(for instance, if APint X representing a bool is created 
with the wrong bit width then X is not comparable against Min/Max
(because of the different bit width), that results in crashes 
(triggered asserts) inside assume* methods), 
for examples see the newly added test cases.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D35041

llvm-svn: 307604

llvm-svn: 307603

I didn't commit clang-import-test.cpp in r307600, but it had some
changes that were part of https://reviews.llvm.org/D35220

Corrected that now.

llvm-svn: 307602

This makes them usable as distribution components in the build.

Differential Revision: https://reviews.llvm.org/D35017

llvm-svn: 307601

- eliminated error handling for the indirect CompilerInstance, which should 
  never generate an error as it is created;
- added a new test for direct importation; and
- removed an unused implementation of the CompleteType() API.

This brings clang-import-test.cpp and ExternalASTMerge.cpp back to 100% 
coverage on all metrics measured by DLLVM_BUILD_INSTRUMENTED_COVERAGE.

Differential Revision: https://reviews.llvm.org/D35220

llvm-svn: 307600

This is part of the continuing effort to increase parity between
LLD and MSVC PDBs.  link still doesn't like our PDBs, so the most
obvious thing to check was whether adding an empty publics stream
would get it to do something else.  It still fails in the same way
but at least this removes one more variable from the equation.
The next logical step would be to try creating an empty globals
stream.

Differential Revision: https://reviews.llvm.org/D35224

llvm-svn: 307598

llvm-svn: 307597

This unit test constructed some profile records incorrectly. One of the
records had a duplicate name: adding that record into the writer caused
an error unrelated to what needed to be tested.

Reported by David Blaikie!

llvm-svn: 307596

Summary: Wrap __sync_* builtins with __libcpp_ functions to facility future customizations as atomic operations are unavailable on some targets.

Reviewers: danalbert, EricWF, jroelofs

Subscribers: joerg, llvm-commits

Differential Revision: https://reviews.llvm.org/D34918

llvm-svn: 307595

IsSpecialLong was only ever set in release mode as all of the uses are in asserts. Wrap in ifndef NDEBUG.

llvm-svn: 307594

This reverts commit 72ff8866bca49ee7d24c87673293b4ce88a039ec.

llvm-svn: 307593

lld-link is apparently a symlink to lld.  Our pdb writing code
uses llvm::sys::fs::getMainExecutable() and writes that value
into the PDB, which will resolve symlinks etc.  But what we
really want is the exact value of argv[0], which matches what
the MS linker does.  Fix this by just writing argv[0] instead
of calling getMainExecutable.

llvm-svn: 307592

Summary: Wrap __sync_* builtins with __libcpp_ functions to facility future customizations as atomic operations are unavailable on some targets.

Reviewers: danalbert, EricWF, jroelofs

Subscribers: joerg, llvm-commits

Differential Revision: https://reviews.llvm.org/D34918

llvm-svn: 307591

Differential Revision: https://reviews.llvm.org/D35152

llvm-svn: 307590

Reverting as it breaks tramp3d-v4 in the llvm test-suite. I added some
comments to https://reviews.llvm.org/D33345 about it.

This reverts commit r307546.

llvm-svn: 307589

Differential Revision: https://reviews.llvm.org/D35208

llvm-svn: 307588

Summary:
As metioned in https://reviews.llvm.org/D34576, checkings in
`collectConstantCandidates` can be replaced by using
`llvm::canReplaceOperandWithVariable`.

The only special case is that `collectConstantCandidates` return false for
all `IntrinsicInst` but it is safe for us to collect constant candidates from
`IntrinsicInst`.

Reviewers: pirama, efriedma, srhines

Reviewed By: efriedma

Subscribers: llvm-commits, javed.absar

Differential Revision: https://reviews.llvm.org/D34921

llvm-svn: 307587

llvm-svn: 307586

For each checked-in wasm file, make sure the there is
corresponding .ll file that can be used to regenerate it
if needed.

Add test/Object/Inputs/trivial-object-test.wasm to match other
formats and add some new wasm tests in test/Object.

Differential Revision: https://reviews.llvm.org/D35213

llvm-svn: 307585