The %update_cc_test_checks substitution only gets added if python3
is on path, so the test fails if it isn't. Don't run the test
when it would fail.

Also include the '%' in the arg to add_update_script_substition(),
to help greppability.

This change only affects EM_386. relOff can be computed from `index`
easily, so it is unnecessarily passed as a parameter.

Both in.plt and in.iplt entries are written by writePLT. For in.iplt,
the instruction `push reloc_offset` will change because `index` is now
different. Fortunately, this does not matter because `push; jmp` is only
used by PLT. IPLT does not need the code sequence.

Reviewed By: grimar, ruiu

Differential Revision: https://reviews.llvm.org/D71518

directly to {read,write}UInt32.

This will be useful for textual formats.  NFC.

This will be required by TemplateName.

properties from a value.

This is useful when the properties of a case are actually
read out of a specific structure, as with TemplateName.

This patch doesn't actually use this serialization for anything,
but follow-ups will move the current handling of various standard
types over to this.

I'm going to introduce some uses of the property read/write methods.

According to OpenMP 5.0, if clause can be used in for simd directive. If
condition in the if clause if false, the non-vectorized version of the
loop must be executed.

Revert "[clangd] Reapply b60896fa Fall back to selecting token-before-cursor if token-after-cursor fails."

This reverts commit a0ff8cd6.
Buildbot failures I can't chase further tonight.

Now that the machine verifier will check for cases of register/immediate
MachineOperands and their correspondence to the MC instruction descriptor,
this patch adds the operand types to the descriptors where they were
previously missing. All MCOI::OPERAND_UNKNOWN operand types have been handled
to get a known type, except for G_... (global isel) instructions.

Review: Ulrich Weigand
https://reviews.llvm.org/D71494

Summary:
llvm-cxxfilt wasn't correctly demangle COFF import thunk in those two
cases before:
* demangle in split mode (multiple words from commandline)
* the import thunk prefix was added no matter the later part of the
string can be demangled or not
Now llvm-cxxfilt should handle both case correctly.

Reviewers: compnerd, erik.pilkington, jhenderson

Reviewed By: jhenderson

Subscribers: jkorous, dexonsmith, ributzka, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D71425

Summary:

Follow-on to D66428 and D71193, to build the TLI per-function so
that -fno-builtin* handling can be migrated to use function attributes.
See discussion on D61634 for background. This is an enabler for fixing
handling of these options for LTO, for example.

With D71193, the -fno-builtin* flags are converted to function
attributes, so we can now set this information per-function on the TLI.

In this patch, the TLI constructor is changed to take a Function, which
can be used to override the available builtins. The TLI is augmented
with an array that can be used to specify which builtins are not
available for the corresponding function. The available function checks
are changed to consult this override before checking the underlying
module level baseline TLII. New code is added to set this override
array based on the attributes.

I also removed the code that sets availability in the TLII in clang from
the options, which is no longe...

Summary:
Add unwinding support for 64-bit RISC-V.

This is from the FreeBSD implementation with the following minor
changes:

- Renamed and renumbered DWARF registers to match the RISC-V ABI [1]
- Use the ABI mneumonics in getRegisterName() instead of the exact
   register names
- Include checks for __riscv_xlen == 64 to facilitate adding the 32-bit
   ABI in the future.

[1] https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md

Patch by Mitchell Horne (mhorne)

Reviewers: lenary, luismarques, compnerd, phosek

Reviewed By: lenary, luismarques

Subscribers: arichardson, sameer.abuasal, abidh, asb, aprantl, krytarowski, simoncook, kito-cheng, christof, shiva0217, rogfer01, rkruppe, PkmX, psnobl, benna, lenary, s.egerton, luismarques, emaste, cfe-commits

Differential Revision: https://reviews.llvm.org/D68362

If a function requires optnone to trigger a crash, it must also have noline,
otherwise it will fail a verifier check.

Differential revision: https://reviews.llvm.org/D69522

Revert "Revert "[libomptarget] Move resource id functions into target specific code, implement for amdgcn""

Summary:
This reverts commit dd8a7fcd.

Alexey reports undefined symbols for the new inline functions defined in target_impl.h
This does not reproduce for me for nvptx, or amdgcn, under release or debug builds.

I believe the patch is fine, based on:
 - the semantics of an inline function in C++ (the cuda INLINE functions end
   up as linkonce_odr in IR), which are only legal to drop if they have no uses
 - the code generated from a debug build of clang 9 does not show these undef symbols
 - the tests pass
 - the code is trivial

To progress from here I either need:
 - A tie break - someone to play the role of CI in determining whether the patch works
 - Alexey to provide sufficient information about his build for me to reproduce the failure
 - Alexey to debug why the symbols are disappearing for him and report back

Reviewers: ABataev, jdoerfert, grokos

Subscribers:...

Check if the TargetStreamer can be accessed.

Differential Revision: https://reviews.llvm.org/D71477

Test latency with explicit register dependency, without and with
forbidden registers.

Differential Revision: https://reviews.llvm.org/D71471

According to OpenMP 5.0, if clause can be used in for simd directive. If
condition in the if clause if false, the non-vectorized version of the
loop must be executed.

As brought up in D71467, a group of floating point builtins
automatically promoted floats to doubles because they used the variadic
builtin tag to support an overload set. The result is that the
parameters were treated as a variadic pack, which always promots
float->double.

This resulted in the wrong answer being given in cases with certain
values of NaN.

Handle -march=native in systemz::getSystemZTargetCPU, similar to
how this is done on other platforms.  Also change the return type
to std::string instead of const char *.

[clangd] Reapply b60896fa Fall back to selecting token-before-cursor if token-after-cursor fails.

This reverts commit 8f876d51.

Revert "[clangd] Reapply b60896fa Fall back to selecting token-before-cursor if token-after-cursor fails."

This reverts commit 2500a8d5.

[clangd] Reapply b60896fa Fall back to selecting token-before-cursor if token-after-cursor fails.

This reverts commit f0604e73
The issue with movability of Tweak::Selection was addressed in 7dc388bd

This reverts commit d6417f55. The tests
depend on builtin headers, which is not intentionally supported in
clangd tests; these tests are broken in some build environments.