Summary:
Part of the code inspired by the original work on libsanitizer in GCC 5.4 by Christos Zoulas.
Sponsored by <The NetBSD Foundation>
Reviewers: fjricci, vitalybuka, joerg, kcc, filcab
Reviewed By: vitalybuka
Subscribers: llvm-commits, kubamracek, #sanitizers
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D36488
llvm-svn: 310647
The Linux xfail decorator was removed in r272326 with the claim that the
test "runs reliably on the linux x86 buildbot." It also runs reliably on
FreeBSD for me.
llvm.org/pr25925
llvm-svn: 310644
We used to try to truncate the constant vector to vXi1, but if it's already i1 this would fail. Instead we now use IRBuilder::getZExtOrTrunc which should check the type and only create a trunc if needed. I believe this should trigger constant folding in the IRBuilder and ultimately do the same thing just with the additional type check.
llvm-svn: 310639
Sometimes it would be nice to stop InstCombine mid way through its combining to see the current IR. By using a debug counter we can place an upper limit on how many instructions to process.
This will also allow skipping the first X combines, but that has the potential to change later combines since earlier canonicalizations might have been skipped.
Differential Revision: https://reviews.llvm.org/D36553
llvm-svn: 310638
This make it consistent with STATISTIC which it will often appears near.
While there move one DEBUG_COUNTER instance out of an anonymous namespace. It's already declaring a static variable so the namespace is unnecessary.
llvm-svn: 310637
This is both a potential security issue and a potential functionality
issue because we create temporary files from multiple threads. Use
the safe version of createTemporaryFile instead.
llvm-svn: 310636
Add missing SK_PermuteSingleSrc costs for AVX2 targets and earlier, also added some of the simpler SK_PermuteTwoSrc costs to support splitting of SK_PermuteSingleSrc shuffles
llvm-svn: 310632
Summary:
1. Refactor the structure of the code by adding a base class for all close-on-exec checks, which implements most of the needed functions.
2. memfd_create() is better to set MFD_CLOEXEC flag to avoid file descriptor leakage.
Reviewers: alexfh, aaron.ballman, hokein
Reviewed By: alexfh, hokein
Subscribers: Eugene.Zelenko, chh, cfe-commits, srhines, mgorny, JDevlieghere, xazax.hun
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D35372
llvm-svn: 310630
This test is consistently reporting unexpected pass for me on FreeBSD
10 and 12. It was failing on the old FreeBSD buildbot which has now been
retired for some time. Will investigate further if this fails once a new
buildbot is configured and running tests.
llvm.org/pr17807
llvm-svn: 310626
Swift would like to be able to access the name of a ModuleMacro.
There was some discussion of this in
https://github.com/apple/swift-clang/pull/93, suggesting that it makes
sense to have this accessor in Clang.
llvm-svn: 310622
This extends the shell of llvm-rc tool with the ability of tokenization
of the input files. Currently, ASCII and ASCII-compatible UTF-8 files
are supported.
Thanks to Nico Weber (thakis) for his original work in this area.
Differential Revision: https://reviews.llvm.org/D35957
llvm-svn: 310621
ResolvedReloc struct is always passed to a callback function and not
stored anywhere. That is, in effect, we use the struct to pack multiple
arguments to one argument, which doesn't make much sense. This patch
removes the struct and passes the members to the callback directly.
llvm-svn: 310620
The liveness-tracking code assumes that the registers that were saved
in the function's prolog are live outside of the function. Specifically,
that registers that were saved are also live-on-exit from the function.
This isn't always the case as illustrated by the LR register on ARM.
Differential Revision: https://reviews.llvm.org/D36160
llvm-svn: 310619
Summary:
Two PrecompiledPreambles, used in parallel on separate threads,
could be writing preamble to the same temporary file.
Reviewers: bkramer, krasimir, klimek
Reviewed By: klimek
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D36529
llvm-svn: 310618
Liveness is usually a notion of input sections, but this patch adds
"liveness" bit to common symbols because they don't belong to any
input section.
This patch is based on https://reviews.llvm.org/D36520
Differential Revision: https://reviews.llvm.org/D36546
llvm-svn: 310617
Such implicitly declared functions behave as if the enclosing block
contained the declaration extern int name() (C90, 6.3.3.2 Function calls),
thus their names should have block scope (C90, 6.1.2.1 Scope of identifiers).
This patch fixes https://bugs.llvm.org/show_bug.cgi?id=33224
Differential Revision: https://reviews.llvm.org/D33676
llvm-svn: 310616
While we do not support `-mshared / -mno-shared` properly, show warning
and ignore `-mlong-calls` option in case of implicitly or explicitly
provided `-mabicalls` option.
Differential revision: https://reviews.llvm.org/D36551
llvm-svn: 310614
The -mabicalls option does not make sense in the case of non position
independent code for the N64 ABI. After this change the driver shows a
warning that -mabicalls is ignored in that case.
Differential revision: https://reviews.llvm.org/D36550
llvm-svn: 310613
Current behavior is to transform these independently of the datalayout.
There's a proposal to change this in D35035:
https://reviews.llvm.org/D35035
llvm-svn: 310611
Summary: This small patch adds the support for ! operator in linker scripts.
Reviewers: ruiu, rafael
Reviewed By: ruiu
Subscribers: meadori, grimar, emaste, llvm-commits
Differential Revision: https://reviews.llvm.org/D36451
llvm-svn: 310607
When non-modular headers are imported while not building a module but
in -fmodules mode, be conservative and preserve the default #import
semantic: do not reenter headers.
rdar://problem/33745031
llvm-svn: 310605
Summary:
Preserve chain dependecies between old and new loads constructed to
prevent loads from reordering below later stores.
Fixes PR34088.
Reviewers: craig.topper, spatel, RKSimon, efriedma
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D36528
llvm-svn: 310604
This is probably a small optimization, but the main motivation is
having a way of fixing pr34053 that doesn't require a hash lookup in
isPreempitible.
llvm-svn: 310602
This implementation of SanitizerCoverage instrumentation inserts different
callbacks depending on constantness of operands:
1. If both operands are non-const, then a usual
__sanitizer_cov_trace_cmp[1248] call is inserted.
2. If exactly one operand is const, then a
__sanitizer_cov_trace_const_cmp[1248] call is inserted. The first
argument of the call is always the constant one.
3. If both operands are const, then no callback is inserted.
This separation comes useful in fuzzing when tasks like "find one operand
of the comparison in input arguments and replace it with the other one"
have to be done. The new instrumentation allows us to not waste time on
searching the constant operands in the input.
Patch by Victor Chibotaru.
llvm-svn: 310600
Summary:
Before, if we fail to parse a jscop file, this will be reported as an
error and importing is aborted. However, this isn't actually strong
enough, since although the import is aborted, the scop has already been
modified and is very likely broken. Instead, make this a hard failure
and throw an LLVM error. This new behaviour requires small changes to
the tests for the legacy pass, namely using `not` to verify the error.
Further, fixed the jscop file for the
base_pointer_load_is_inst_inside_invariant_1 testcase.
Reviewed By: Meinersbur
Split out of D36578.
llvm-svn: 310599
Summary:
I pulled out all functionality into static functions, and use those both
in the legacy passes and in the new ones.
Reviewers: grosser, Meinersbur, bollu
Reviewed By: Meinersbur
Subscribers: llvm-commits, pollydev
Differential Revision: https://reviews.llvm.org/D36578
llvm-svn: 310597
Added declarations of __sanitizer_cov_trace_const_cmp[1248] callbacks.
For more details, please see https://reviews.llvm.org/D36465.
Patch by Victor Chibotaru.
llvm-svn: 310596
Kamil Rytarowski