candidates with coldcc attribute.

This recommits r322721 reverted due to sanitizer memory leak build bot failures.

Original commit message:
This patch adds support for the coldcc calling convention for Power.
This changes the set of non-volatile registers. It includes a pass to stress
test the implementation by marking all static directly called functions with
the coldcc attribute through the option -enable-coldcc-stress-test. It also
includes an option, -ppc-enable-coldcc, to add the coldcc attribute to
functions which are cold at all call sites based on BlockFrequencyInfo when
the containing function does not call any non cold functions.

Differential Revision: https://reviews.llvm.org/D38413

llvm-svn: 323778

Summary:
`struct crashreporter_annotations_t` gained one more `uint64_t` field in
`CRASHREPORTER_ANNOTATIONS_VERSION` 5

causing an annoying clang warning:

```
llvm/lib/Support/PrettyStackTrace.cpp:92:65: warning: missing field 'abort_cause' initializer [-Wmissing-field-initializers]
        = { CRASHREPORTER_ANNOTATIONS_VERSION, 0, 0, 0, 0, 0, 0 };
                                                                ^
1 warning generated
```

Let's fix it.

Patch by Roman Tereshin

Reviewers: qcolombet, echristo, beanz, dexonsmith

Reviewed By: echristo

Subscribers: dsanders, dexonsmith, beanz, echristo, qcolombet, llvm-commits

Differential Revision: https://reviews.llvm.org/D42268

llvm-svn: 323777

llvm-svn: 323776

Update any test case relevant for Exynos M3.

llvm-svn: 323775

This feature enables special handling of cheap as move in the existing
custom handling specifically for Exynos processors.

Differential revision: https://reviews.llvm.org/D42387

llvm-svn: 323774

Add the scheduling and cost model for Exynos M3.

Differential revision: https://reviews.llvm.org/D42387

llvm-svn: 323773

More specifically,
clang-tidy/rename_check.py misc-incorrect-roundings \
  bugprone-incorrect-roundings --check_class_name IncorrectRoundings

llvm-svn: 323768

llvm-svn: 323766

llvm-svn: 323765

Summary:
 There's an asymmetry in the definitions of findBaseDefiningValueOfVector() and
findBaseDefiningValue() of RS4GC. The later handles call and invoke instructions,
and the former does not. This appears to be simple oversight. This patch remedies
the oversight by adding the call and invoke cases to findBaseDefiningValueOfVector().

Reviewers: DaniilSuchkov, anna

Reviewed By: anna

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42653

llvm-svn: 323764

We also need to be .EXE-aware when searching for the clang binary.

llvm-svn: 323763

llvm-svn: 323762

This reverts commit r323690. This causes crash in llc. See the original commit thread for details.

llvm-svn: 323761

llvm-svn: 323760

We missed a critical check in D30703. We must make sure that no intermediate 
store is sitting between the stores that we want to merge.

This should fix:
https://bugs.llvm.org/show_bug.cgi?id=36129

Differential Revision: https://reviews.llvm.org/D42663

llvm-svn: 323759

Summary:
When there's a mismatch of a function argument being right after the
wrong function, print an offset into the file where that happened, to
ease further debugging.

Reviewers: dberris, eizan, kpw

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42492

llvm-svn: 323758

This patch moves the implementation of the print methods from the header
to the cpp file.

llvm-svn: 323757

Summary:
Turns out sizeof(packed) isn't as strong as we'd hoped.  This makes sure
that when we initialize the padding, all 12 bytes will be zero.

Reviewers: dberris, kpw, eizan

Subscribers: delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D42494

llvm-svn: 323755

As per the LLVM Developer Policy under "Obtainiing Commit Access".

llvm-svn: 323754

Summary:
The difference between this and regular LLDB_LOG is that this one clears
the error object unconditionally.  This was inspired by the
ObjectFileELF bug (r322664), where the error object was being cleared
only if logging was enabled.

Reviewers: davide, zturner, jingham, clayborg

Subscribers: lldb-commits, emaste

Differential Revision: https://reviews.llvm.org/D42182

llvm-svn: 323753

llvm-svn: 323752

llvm-svn: 323751

Change simple-register-allocation-read-undef.mir so that it doesn't fail if the file path contains 'dead' . NFC

llvm-svn: 323748

llvm-svn: 323747

The logic was incorrect because on windows, we need to look for
yaml2obj.EXE. I implement the search in terms of
distutils.spawn.find_executable, which should handle the platform
differences for us.

llvm-svn: 323744

It fails due to an assertion (if these are enabled).

llvm-svn: 323736

Summary:
This should speed up global code completion by avoiding deserializing
preamble declarations to look up names. The tradeoff is memory usage.
Currently the index is fairly naive and may not be much faster, but there's lots
of performance headroom.

These two changes go together because results from the index get copied a couple
of times, so we should avoid it for huge sets.

Also the flag should be -completion-limit, rather than -limit-completion.

Reviewers: hokein, ioeric, ilya-biryukov

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D42669

llvm-svn: 323734

These are handled by the TableGen'erated code.

llvm-svn: 323732

Straightforward mapping (integer operand to GPR, floating point operand
to FPR).

llvm-svn: 323731

Legal if we have hardware support, libcall otherwise.

Also add supporting code to the legalizer helper for libcalls.

llvm-svn: 323730

Currently symbols assigned or created by linkerscript are not processed early
enough. As a result it is not possible to version them or assign any other flags/properties.

Patch creates Defined symbols for -defsym and linkerscript symbols early,
so that issue from above can be addressed.

It is based on Rafael Espindola's version of D38239 patch.

Fixes PR34121.

Differential revision: https://reviews.llvm.org/D41987

llvm-svn: 323729

The work is done by the TableGen'erated code.

llvm-svn: 323728

Straightforward mapping (integer operand goes to GPR, floating point
operand goes to FPR).

llvm-svn: 323727

Legal if we have hardware support for floating point, libcalls
otherwise.

Also add the necessary support for libcalls in the legalizer helper.

llvm-svn: 323726

Differential Revision: https://reviews.llvm.org/D42621

llvm-svn: 323725

llvm-svn: 323724

llvm-svn: 323723

add prefix with '_' support for property name. Corresponding apple dev doc: https://developer.apple.com/library/content/qa/qa1908/_index.html

Reviewers: benhamilton, hokein

Reviewed By: benhamilton

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42464

llvm-svn: 323722

[DWARF] Corrected test committed in r323670 to use llc instead of llc_dwarf to avoid multiple triples.

llvm-svn: 323721

llvm-svn: 323720