Summary: Extend various verifyFormat helper functions to check that the
expected text is "stable". This provides some protection against bugs
where formatting results are ocilating between two forms, or continually
change in some other way.
Testing Done:
* Ran unit tests.
* Reproduced a known instability in preprocessor indentation which was
caught by this new check.
Reviewers: krasimir
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D42034
llvm-svn: 329231
Sometimes instead of storing addresses as is, the kernel stores the address of
a page and an offset within that page, and then computes the actual address
when it needs to make an access. Because of this the pointer tag gets lost
(gets set to 0xff). The solution is to ignore all accesses tagged with 0xff.
This patch adds a -hwasan-match-all-tag flag to hwasan, which allows to ignore
accesses through pointers with a particular pointer tag value for validity.
Patch by Andrey Konovalov.
Differential Revision: https://reviews.llvm.org/D44827
llvm-svn: 329228
Summary:
Under some circumstances (that I haven't dug further into), the first stack
frame for the test looks like:
`#0 0x4e6038 in __interceptor_memalign.localalias.1 ...compiler-rt/lib/asan/asan_malloc_linux.cc:113`
which isn't matched by the current CHECK.
Expand the CHECK to match aligned_alloc or memalign. Hopefully this should fix
the PowerPC issue as well, otherwise we'll bring back the FIXME.
Reviewers: alekseyshl
Reviewed By: alekseyshl
Subscribers: srhines, kubamracek, delcypher, #sanitizers, llvm-commits
Differential Revision: https://reviews.llvm.org/D45281
llvm-svn: 329226
Summary:
In https://reviews.llvm.org/D44960, file status check is executed every
time a real file system directory iterator is constructed or
incremented, and emits an error code. This change list fixes the errors
in VirtualFileSystem caused by https://reviews.llvm.org/D44960.
Patch by Yuke Liao (@liaoyuke).
Reviewers: vsk, pcc, zturner, liaoyuke
Reviewed By: vsk
Subscribers: mgrang, cfe-commits
Differential Revision: https://reviews.llvm.org/D45178
llvm-svn: 329223
One place where this seems to matter is to make sure the .rsrc section comes
after .text. The Win32 UpdateResource() function can change the contents of
.rsrc. It will move the sections that come after, but if .text gets moved, the
entry point header will not get updated and the executable breaks. This was
found by a test in Chromium.
Differential Revision: https://reviews.llvm.org/D45260
llvm-svn: 329221
The MachineOutliner has a bunch of target hooks that will call llvm_unreachable
if the target doesn't implement them. Therefore, if you enable the outliner on
such a target, it'll just crash. It'd be much better if it'd just *not* run
the outliner at all in this case.
This commit adds a hook to TargetInstrInfo that returns false by default.
Targets that implement the hook make it return true. The outliner checks the
return value of this hook to decide whether or not to continue.
llvm-svn: 329220
We were ignoring the addend if the piece was dead. I don't expect this
to make a difference in any real world situations, but it is simpler
anyway.
llvm-svn: 329219
Summary:
Clang's __builtin_operator_new/delete was recently taught about the aligned allocation overloads (r328134). This patch makes LLVM aware of them as well.
This allows the compiler to perform certain optimizations including eliding new/delete calls.
Reviewers: rsmith, majnemer, dblaikie, vsk, bkramer
Reviewed By: bkramer
Subscribers: ckennelly, llvm-commits
Differential Revision: https://reviews.llvm.org/D44769
llvm-svn: 329218
Summary:
r327219 added wrappers to std::sort which randomly shuffle the container before sorting.
This will help in uncovering non-determinism caused due to undefined sorting
order of objects having the same key.
To make use of that infrastructure we need to invoke llvm::sort instead of std::sort.
Note: This patch is one of a series of patches to replace *all* std::sort to llvm::sort. Refer the comments section in D44363 for a list of all the required patches.
Reviewers: t.p.northover, jmolloy, RKSimon, rengolin
Reviewed By: rengolin
Subscribers: dexonsmith, rengolin, javed.absar, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D44853
llvm-svn: 329216
Summary:
Clang's __builtin_operator_new/delete was recently taught about the aligned allocation overloads (r328134). This patch makes LLVM aware of them as well.
This allows the compiler to perform certain optimizations including eliding new/delete calls.
Reviewers: rsmith, majnemer, dblaikie, vsk, bkramer
Reviewed By: bkramer
Subscribers: ckennelly, llvm-commits
Differential Revision: https://reviews.llvm.org/D44769
llvm-svn: 329215
Summary:
When checking the parallelism of a scheduling dimension, we first check if excluding reduction dependences the loop is parallel or not.
If the loop is not parallel, then we need to return the minimal dependence distance of all data dependences, including the previously subtracted reduction dependences.
Reviewers: grosser, Meinersbur, efriedma, eli.friedman, jdoerfert, bollu
Reviewed By: Meinersbur
Subscribers: llvm-commits, pollydev
Tags: #polly
Differential Revision: https://reviews.llvm.org/D45236
llvm-svn: 329214
Summary:
ShadowCallStack does not yet have a runtime provided by compiler-rt, but
this change includes simple tests that make use of a very minimal
runtime in test/shadowcallstack/minimal_runtime.h
Reviewers: pcc, kcc, delcypher, eugenis, filcab
Reviewed By: pcc
Subscribers: kubamracek, mgorny, delcypher, llvm-commits, #sanitizers, kcc
Differential Revision: https://reviews.llvm.org/D44803
llvm-svn: 329210
Using this, you can use llvm-pdbutil to export the contents of a
stream to a binary file, then run explain on the binary file so
that it treats the offset as an offset into the stream instead
of an offset into a file. This makes it easy to compare the
contents of the same stream from two different files.
llvm-svn: 329207
This expands the CMake check to handle both statically and dynamically
linked version of libc++abi and libunwind and matches the implemnetation
used elsewhere in LLVM.
Differential Revision: https://reviews.llvm.org/D45242
llvm-svn: 329205
Summary:
The purpose of this set of changes is to separate stackframe/symbolizer support into their own RT within sanitizer_common.
Sanitizers with no use for those could then be built without the extraneous dependencies pulled in by the default visibility interface functions.
I am aiming to do small changes for specific platforms.
In this one, we split the unwind functions from sanitizer_win.cc into their own sanitizer_unwind_win.cc.
Reviewers: alekseyshl, rnk
Reviewed By: alekseyshl, rnk
Subscribers: delcypher, #sanitizers, kubamracek, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D44799
llvm-svn: 329204
isPicRel is used to check if we want to create the dynamic relocations.
Not all of the dynamic relocations we create are passing through this
check, but those that are, probably better be whitelisted.
Differential revision: https://reviews.llvm.org/D45252
llvm-svn: 329203
Some compilers do not like having an enum type and a variable with the
same name (AccelTableKind). I rename the variable to TheAccelTableKind.
Suggestions for a better name welcome.
llvm-svn: 329202
- MSVC was not OK with a static_assert referencing a non-static member
variable, even though it was just in a sizeof(expression). I move the
assert into the emit function, where it is probably more useful.
- Tests were failing in builds which did not have the X86 target
configured. Since this functionality is not target-specific, I have
removed the target specifiers from the .ll files.
llvm-svn: 329201
These are failing on clang-ppc64le-linux-lnt, though the subdirectory is
not even supposed to be built in CMakeLists. Disable the tests until we
understand what's going on.
llvm-svn: 329200
Summary:
This is D45125; the patch enables the build of XRay on OpenBSD. We also
introduce some OpenBSD specific changes to the runtime implementation,
involving how we get the TSC rate through the syscall interface specific
to OpenBSD.
Reviewers: dberris
Authored by: devnexen
Subscribers: dberris, mgorny, krytarowski, llvm-commits
Differential Revision: https://reviews.llvm.org/D45125
llvm-svn: 329189
Summary:
This is a first version of the AMDPAL code conventions.
Further updates will undoubtably be required to fully
document AMDPAL.
Subscribers: nhaehnle, llvm-commits
Differential Revision: https://reviews.llvm.org/D45246
llvm-svn: 329188
Rui Ueyama