Summary:
The llvm libraries depend on the symbols in the system libaries, so
the system libraries need to be added after.

Reviewers: jvesely

Reviewed By: jvesely

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78535

The current implementation uses CrashRecoveryContext, but this only supports recovering in a certain number of cases. This revision adds a signal handler to support even more situations.

This revision was able to properly generate a reproducer for a segfault in the Inliner, that the current recovery couldn't.

Differential Revision: https://reviews.llvm.org/D78315

This revision adds a mode to the crash reproducer generator to attempt to generate a more local reproducer. This will attempt to generate a reproducer right before the offending pass that fails. This is useful for the majority of failures that are specific to a single pass, and situations where some passes in the pipeline are not registered with a specific tool.

Differential Revision: https://reviews.llvm.org/D78314

This moves the threading check to runOnOperation. This produces a much cleaner interface for the adaptor pass, and will allow for the ability to enable/disable threading in a much cleaner way in the future.

Differential Revision: https://reviews.llvm.org/D78313

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77456

--gdb-index currently crashes when reading a translation unit with
DWARF v5 .debug_loclists . Call stack:

```
SyntheticSections.cpp GdbIndexSection::create
SyntheticSections.cpp readAddressAreas
DWARFUnit.cpp DWARFUnit::tryExtractDIEsIfNeeded
DWARFListTable.cpp DWARFListTableHeader::extract
...
DWARFDataExtractor.cpp DWARFDataExtractor::getRelocatedValue
lld/ELF/DWARF.cpp LLDDwarfObj<ELFT>::find (sec.sec is nullptr)
...

```

This patch adds support for .debug_loclists to make `DWARFUnit::tryExtractDIEsIfNeeded` happy.
Building --gdb-index does not need .debug_loclists

Reviewed By: dblaikie, grimar

Differential Revision: https://reviews.llvm.org/D79061

Revert "[InlineCost] Addressing a very strict assert check in CostAnnotationWriter::emitInstructionAnnot"

This reverts commit 66947d05.

Makes the relationship and function clearer. Accordingly rename getAttrList to getMutableAttrDict.

Differential Revision: https://reviews.llvm.org/D79125

Drops the behavior from rL217112.

Use the Gnu driver mode by default for all platforms when ld is
invoked. Other names for the program (such as link or ld64) continue
working as before.

Reviewed By: MaskRay, srhines, smeenai, ruiu

Differential Revision: https://reviews.llvm.org/D78837

[X86] Merge the last of the useBWIRegs() section into the useAVX512Regs() section of the X86TargetLowering constructor. NFC

This section is the remnant of how this code was structured before
we made v32i16/v64i8 legal types with avx512f when not restricting
to 256 bit vectors. Now that there are just a few items left,
merge them near similar things in the other section.

I added a limit to make sure that _ExtInt isn't exposed on systems that
haven't considered it in their ABI.  The ext-int.cpp Sema test didn't
have a triple, so on non x86/x86_64 it would fail with this new error.

This patch adds said triple to make sure this passes.

Summary: Remove unused variable.

Reviewers: echristo, efriedma

Reviewed By: echristo

Subscribers: tschuett, rkruppe, psnobl, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79129

Summary:
A valid DominatorTree is needed to do PhiTranslation.
Before this patch, a MemoryUse could be optimized to an access outside a loop, while the address it loads from is modified in the loop.
This can lead to a miscompile.

Reviewers: george.burgess.iv

Subscribers: Prazek, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79068

Reviewers: efriedma, huihuiz, dexonsmith, spatel

Reviewed By: efriedma

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79122

This reverts commit da093c38.

Broke a test on Darwin. Will fix the test and resubmit.

Since the _ExtInt type got into the repo, we've discovered that the ABI
implications weren't completely understood. The other architectures are
going to be audited (see D79118), however downstream targets aren't
going to benefit from this audit.

This patch disables the _ExtInt type by default and makes the
target-info an opt-in.  As it is audited, I'll re-enable these for all
of our default targets.

Newer iOS SDK introduce accessors to retrieve the register values
(arm_thread_state64_get_*) and disallows direct access to fields. If
arm_thread_state64_get_sp is defined, the accessors are available.

This option seems to be very useful, so let's turn it on by default

Reviewed-By: davidxl
Diff: https://reviews.llvm.org/D79110

The assert checks that every instruction must be annotated by this point while it is not
necessary. If the inlining process was interrupted because the threshold was reached, the rest
of the instructions would not be annotated which triggers the assert.
The added test shows the situation in which it can happen.

Reviewed-By: mtrofin
Diff: https://reviews.llvm.org/D79107

See https://crbug.com/1076480 for details.

We generate much better code these days than we used to. And we use the same sequence for AVX1 and AVX2 for these

For v4i64->v4i32 we generate:
vextractf128    xmm1, ymm0, 1
vshufps xmm0, xmm0, xmm1, 136   # xmm0 = xmm0[0,2],xmm1[0,2]

And for v8i64->v8i32 we generate:
vperm2f128      ymm2, ymm0, ymm1, 49 # ymm2 = ymm0[2,3],ymm1[2,3]
vinsertf128     ymm0, ymm0, xmm1, 1
vshufps ymm0, ymm0, ymm2, 136   # ymm0 = ymm0[0,2],ymm2[0,2],ymm0[4,6],ymm2[4,6]

Differential Revision: https://reviews.llvm.org/D79109

Enable calling the sort, as expected by getWithSorted, into static member function so that callers can get same sorting behavior.

Differential Revision: https://reviews.llvm.org/D79011

Summary:
Use the Gnu driver mode by default for all platforms when ld is
invoked. Other names for the program (such as link or ld64) continue
working as before.

Reviewers: MaskRay, int3, srhines, smeenai, ruiu

Reviewed By: MaskRay, srhines, smeenai, ruiu

Subscribers: smeenai, srhines, nickdesaulniers, llvm-commits

Tags: #lld, #llvm

Differential Revision: https://reviews.llvm.org/D78837

I'm currently auditing all of the calling convention implications of
_ExtInt for all platforms, so splitting them up into their own test will
make this a much easier task to organize.

It's trivial to derive this information from other state.

These upper bounds are inclusive, so -1 (rather than 0) is the natural
way to express an empty range.

This makes the definition and uses of NewUB more symmetrical, and makes
it clear that ScoreLBs[T] does not change.

If we don't handle the errors we can't rely on the directory being created early anyway.

Differential Revision: https://reviews.llvm.org/D78959

Reviewers: efriedma, sdesmalen, c-rhodes, ddunbar

Reviewed By: sdesmalen

Subscribers: huntergr, tschuett, rkruppe, psnobl, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78831

For compatibility with other assemblers on the platform, allow
using just plain integer register numbers in all places where a
register operand is expected.

Bug: llvm.org/PR45582

Remove redundant Group and Regs arguments from parseRegister
and eliminate one of its overloaded versions.

Remove redundant Regs argument from parseAddress.

NFC intended.

This reverts commit 51a60ed1, since the test still doesn't pass on
Windows. Marking the test as UNSUPORTED	on Windows again until I've
figured out the problem.

After speaking with Craig Topper about some recent defects, he pointed
out that _ExtInts should be passed indirectly if larger than the largest
int register, and like ints when smaller than that.  This patch
implements that.

Note that this changed the way vaargs worked quite a bit, but they still
work.

Differential Revision: https://reviews.llvm.org/D78785

This matches what is done for MSVC in
b8000c0c. Since that commit, compiler
rt sanitizer libraries aren't linked to with absolute path on windows,
but using their basenames, requiring the libdirs to be passed to
the linker.

This fixes undefined behaviour sanitizer on MinGW after
b8000c0c.

Differential Revision: https://reviews.llvm.org/D79076

The debug directory payload is not located directly after the
debug directory entry itself, but can essentially be located anywhere
in the binary (even outside of mapped sections, although we don't
handle that case).

Differential Revision: https://reviews.llvm.org/D78921