--no-threads is a name copied from gold.
gold has --no-thread, --thread-count and several other --thread-count-*.
There are needs to customize the number of threads (running several lld
processes concurrently or customizing the number of LTO threads).
Having a single --threads=N is a straightforward replacement of gold's
--no-threads + --thread-count.
--no-threads is used rarely. So just delete --no-threads instead of
keeping it for compatibility for a while.
If --threads= is specified (ELF,wasm; COFF /threads: is similar),
--thinlto-jobs= defaults to --threads=,
otherwise all available hardware threads are used.
There is currently no way to override a --threads={1,2,...}. It is still
a debate whether we should use --threads=all.
Reviewed By: rnk, aganea
Differential Revision: https://reviews.llvm.org/D76885
The shtest-inject test relied on being executed in "single process" mode
and started to fail with a `PicklingError` after it was removed:
```
Can't pickle <class 'lit.TestingConfig.CustomFormat'>: attribute
lookup lit.TestingConfig.CustomFormat failed
```
This happened because the test config has to be serialized to the worker
process, but apparently the `CustomFormat` class defined inline is not
serializable.
This change allows passing the tested functionality (preamble_commands)
directly to `lit.formats.ShTest` so we can use it directly in the test.
Remove the "serial run" abstraction which bypasses Python's
`multiprocessing.Pool` and instead directly runs tests without spawning
worker processes. This abstraction has not offered the benefits I hoped
it would and therefore does not carry its weight.
In previous commits [1,2] I changed worker.py to only send back the test
result from the worker process instead of the whole test object. This
was a mistake. lit.Test contains fields (e.g., xfials, requires,
unsupported) that are only populated when we actually execute the test,
but are queried when we report the results in the parent process. This
commit essentially reverts the following changes:
[1] a3d2f9b53a
[2] 17bb660fb8
- only complain about duplicate 'sources' lines if they contain
more than 1 elements each (before, 0 and 1 element lists were
counted too). In practice, this only has an effect for
clang/lib/Headers/BUILD.gn
- make the '# NOSORT' diag actually work. This too only affects
clang/lib/Headers/BUILD.gn.
In aggregate, changes to clang/lib/Headers/BUILD.gn still can't
be auto-merged, but for a slighly better reason.
A previous attempt to cleanup module imports broke installing via
pip/setup.py [1]. This should be fixed now.
[1] cf252240e8
Reviewed By: paquette
Differential Revision: https://reviews.llvm.org/D76940
This minor refactoring allows reducing the amount of processing that
is duplicated when we re-run a flaky test. It also has the nice
side effect that libc++'s current test format supports flaky .sh.cpp
tests, because those are built on top of _runShTest, not executeShTest.
This allows defining substitutions in terms of other substitutions. For
example, a %build substitution could be defined in terms of a %cxx
substitution as '%cxx %s -o %t.exe' and the script would be properly
expanded.
Differential Revision: https://reviews.llvm.org/D76178
Summary:
Some compressed instructions match against negative values; store
immediates as a signed value such that these patterns will now match
the intended instructions.
Reviewers: asb, lenary, PaoloS
Reviewed By: asb
Subscribers: rbar, johnrusso, sabuasal, niosHD, kito-cheng, shiva0217, jrtc27, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna, Jim, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, evandro, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D76767
Follow-up of D72172 and D72180
This patch passes `uint64_t Address` to print methods of PC-relative
operands so that subsequent target specific patches can change
`*InstPrinter::print{Operand,PCRelImm,...}` to customize the output.
Add MCInstPrinter::PrintBranchImmAsAddress which is set to true by
llvm-objdump.
```
// Current llvm-objdump -d output
aarch64: 20000: bl #0
ppc: 20000: bl .+4
x86: 20000: callq 0
// Ideal output
aarch64: 20000: bl 0x20000
ppc: 20000: bl 0x20004
x86: 20000: callq 0x20005
// GNU objdump -d. The lack of 0x is not ideal because the result cannot be re-assembled
aarch64: 20000: bl 20000
ppc: 20000: bl 0x20004
x86: 20000: callq 20005
```
In `lib/Target/X86/X86GenAsmWriter1.inc` (generated by `llvm-tblgen -gen-asm-writer`):
```
case 12:
// CALL64pcrel32, CALLpcrel16, CALLpcrel32, EH_SjLj_Setup, JCXZ, JECXZ, J...
- printPCRelImm(MI, 0, O);
+ printPCRelImm(MI, Address, 0, O);
return;
```
Some targets have 2 `printOperand` overloads, one without `Address` and
one with `Address`. They should annotate derived `Operand` properly with
`let OperandType = "OPERAND_PCREL"`.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D76574
This allows creating custom test formats on top of `executeShTest` that
inject commands at the beginning of the file being parsed, without
requiring these commands to physically appear in the test file itself.
For example, one could define a test format that prints out additional
debug information at the beginning of each test. More realistically,
this has been used to define custom test formats like one that supports
compilation failure tests (e.g. with the extension `compile.fail.cpp`)
by injecting a command that calls the compiler on the file itself and
expects it to fail.
Without this change, the only alternative is to create a temporary file
with the same content as the original test, then prepend the desired
`// RUN:` lines to that file, and call `executeShTest` on that file
instead. This is both slow and cumbersome to do.
Differential Revision: https://reviews.llvm.org/D76290
Remove the local versions of the IR_FUNCTION_RE matcher (they weren't doing anything different), and ensure all the function name matchers accept '.' and '-'.
We don't need to use '\.' inside python regex sets either, or '\-' as long as thats at the end of the set.
For MTE error reporting we will need to expose interfaces for crash handlers
to use to interpret scudo headers and metadata. The intent is that these
interfaces will live in scudo/interface.h.
Move the existing interface.h into an include/scudo directory and make it
independent of the internal headers, so that we will be able to add the
interfaces there.
Differential Revision: https://reviews.llvm.org/D76648
This reverts commit e9f22fd429.
When building with -DLLVM_USE_SANITIZER="Thread", check-llvm has 70
failing tests with this revision, and 29 without this revision.
Julian Lettner