A block ending in an unconditional branch can have two successors if one
is a landing pad. In practice, I think this only has an effect on
Windows because landing pads are never empty for Itanium unwinding.
(Alternatively, I could add a check to
AArch64InstrInfo::canInsertSelect, but this seems more obvious.)
Differential Revision: https://reviews.llvm.org/D56468
llvm-svn: 351142
Otherwise, with D56544, the intrinsic will be expanded to an integer
csel, which is probably not what the user expected. This matches the
general convention of using "v1" types to represent scalar integer
operations in vector registers.
While I'm here, also add some error checking so we don't generate
illegal ABS nodes.
Differential Revision: https://reviews.llvm.org/D56616
llvm-svn: 351141
This feature enables the fusion of some arithmetic and logic instructions
together.
Differential revision: https://reviews.llvm.org/D56572
llvm-svn: 351139
This will allow other utilities (including a future RuntimeDyld replacement) to
use these types without pulling in the major Core types (JITDylib, etc.).
llvm-svn: 351138
And they are faling on clang-cmake-armv7-full too.
*ONLY* these two.
I'm not sure what to make of it.
Perhaps doing a malloc and checking that pointer will
make them fail as expected?
llvm-svn: 351134
This parameter was only ever used with the Module set, and
since a SymbolFile is tied to a module, the parameter turns
out to be entirely unnecessary. Furthermore, it doesn't make
a lot of sense to ask a caller to ask SymbolFile which is tied
to Module X to find types for Module Y, but that possibility
was open with the previous interface. By removing this
parameter from the API, it makes it harder to use incorrectly
as well as easier for an implementor to understand what it
needs to do.
llvm-svn: 351133
Every callsite was passing an empty SymbolContext, so this parameter
had no effect. Inside the DWARF implementation of this function,
however, there was one codepath that checked members of the
SymbolContext. Since no call-sites actually ever used this
functionality, it was essentially dead code, so I've deleted this
code path as well.
llvm-svn: 351132
This method took a SymbolContext but only actually cared about the
case where the m_function member was set. Furthermore, it was
intended to be implemented to parse blocks recursively despite not
documenting this in its name. So we change the name to indicate
that it should be recursive, while also limiting the function
parameter to be a Function&. This lets the caller know what is
required to use it, as well as letting new implementers know what
kind of inputs they need to be prepared to handle.
llvm-svn: 351131
official Git repository.
Remove the directions for using git-svn, and demote the prominence of
the svn instructions.
Also, fix a few other issues while I'm in there:
* Mention LLVM_ENABLE_PROJECTS more.
* Getting started doesn't need to mention test-suite, but should
mention clang and the other projects.
* Remove mentions of "configure", since that's long gone.
I've also adjusted a few other mentions of svn to point to github, but
have not done so comprehensively.
Differential Revision: https://reviews.llvm.org/D56654
llvm-svn: 351130
MachOObjectFile::getSymbolByIndex.
ObjectFile derivatives should prefer symbol_iterator/SymbolRef over
basic_symbol_iterator/BasicSymbolRef where possible, as the former
retain their link to the ObjectFile (rather than a SymbolicFile) and provide
more functionality.
No test for this: Existing code is working, and we don't have (m)any libObject
unit tests. I'll think about how we can test more systematically going forward.
llvm-svn: 351128
consistently accept a pointee-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56559
llvm-svn: 351124
accept a return-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56558
llvm-svn: 351123
accept a callee-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56557
llvm-svn: 351122
accept a callee-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56556
llvm-svn: 351121
Summary:
Normal behavior for GNU ar is to flatten thin archives when adding them to another thin archive, i.e. add the members directly instead of nesting the archive.
Some refactoring done as part of this patch to ease things:
- Consolidate `addMember`/`addLibMember` methods
- Rename `addMember` to `addChildMember` to make it more visibly different at the call site that an archive child is passed instead of a regular member
- Pass in a separate vector and splice it back into position instead of passing a vector + optional Pos (which makes expanding libs tricky)
This fixes PR37530 as raised by https://github.com/ClangBuiltLinux/linux/issues/279.
Reviewers: mstorsjo, pcc, ruiu
Reviewed By: mstorsjo
Subscribers: llvm-commits, tpimh, nickdesaulniers
Differential Revision: https://reviews.llvm.org/D56508
llvm-svn: 351120
Once again, just like with r338296, these tests seem to only have
failed sanitizer-x86_64-linux-android, so let's just disable them,
since that seems like the pre-established practice here..
To be noted, they failed on some configs there, but not all,
so it is not XFAIL.
llvm-svn: 351119
Summary:
Use appendToUsed instead of include to ensure that
SanitizerCoverage's constructors are not stripped.
Also, use isOSBinFormatCOFF() to determine if target
binary format is COFF.
Reviewers: pcc
Reviewed By: pcc
Subscribers: hiraditya
Differential Revision: https://reviews.llvm.org/D56369
llvm-svn: 351118
Having libc++ checked out doesn't necessarily mean it should be built;
for example, the same source tree might be used for multiple build
configurations, and libc++ might not build in some of those
configurations. Add an option to compiler-rt's build to disable building
libc++. This defaults to ON, so it shouldn't change any existing build
configurations.
Differential Revision: https://reviews.llvm.org/D56479
llvm-svn: 351117
Summary: No need to avoid the Visit method.
Reviewers: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D56640
llvm-svn: 351115
This is needed because otherwise if source dir is at location whose path
contains non-ASCII character then python will complain about
SyntaxError.
SyntaxError: Non-ASCII character '\xc4' in file
/home/D?vis/libc++/src/build/bin/llvm-lit on line 16, but no encoding
declared; see http://python.org/dev/peps/pep-0263/ for details
Patch by davispuh
Differential Revision: https://reviews.llvm.org/D50201
llvm-svn: 351113
Disable tests requiring sunrpc when the relevant headers are missing.
In order to accommodate that, move the header check
from sanitizer_common to base-config-ix, and define the check result
as a global variable there. Use it afterwards both for definition
needed by sanitizer_common, and to control 'sunrpc' test feature.
While at it, remove the append_have_file_definition macro that was used
only once, and no longer fits the split check-definition.
Bug report: https://github.com/google/sanitizers/issues/974
Differential Revision: https://reviews.llvm.org/D47819
llvm-svn: 351109
Mention the deployment target, and don't say "partial" which doesn't
really mean anything to users.
rdar://problem/33601513
Differential revision: https://reviews.llvm.org/D56523
llvm-svn: 351108
Summary:
This allows a bit more control for scenarios where client might
modifiy a DIContext
Reviewers: twoh, Kader, modocache
Reviewed By: Kader
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D56505
llvm-svn: 351107
Summary:
UB isn't nice. It's cool and powerful, but not nice.
Having a way to detect it is nice though.
[[ https://wg21.link/p1007r3 | P1007R3: std::assume_aligned ]] / http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1007r2.pdf says:
```
We propose to add this functionality via a library function instead of a core language attribute.
...
If the pointer passed in is not aligned to at least N bytes, calling assume_aligned results in undefined behaviour.
```
This differential teaches clang to sanitize all the various variants of this assume-aligned attribute.
Requires D54588 for LLVM IRBuilder changes.
The compiler-rt part is D54590.
Reviewers: ABataev, craig.topper, vsk, rsmith, rnk, #sanitizers, erichkeane, filcab, rjmccall
Reviewed By: rjmccall
Subscribers: chandlerc, ldionne, EricWF, mclow.lists, cfe-commits, bkramer
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D54589
llvm-svn: 351105
Summary:
Clang calls these functions to produce IR for assume-aligned attributes.
I would like to teach UBSAN to verify these assumptions.
For that, i need to access the final pointer on which the check is performed,
and the actual `icmp` that does the check.
The alternative to this would be to fully re-implement this in clang.
Reviewers: spatel, dneilson, craig.topper, dblaikie, hfinkel
Reviewed By: hfinkel
Subscribers: hfinkel, llvm-commits
Differential Revision: https://reviews.llvm.org/D54588
llvm-svn: 351104
If we have PSHUFB and we're shuffling with a zero vector, then we are better off not doing VECTOR_SHUFFLE(UNPCK()) as we lose track of those zero elements.
llvm-svn: 351103
Summary: Like branch instructions, phi nodes frequently do not have debug information related to the block they are in and so they should be ignored.
Reviewers: danielcdh, twoh, Kader, wmi
Reviewed By: wmi
Subscribers: aprantl, llvm-commits
Differential Revision: https://reviews.llvm.org/D55094
llvm-svn: 351102
Changes a few things I noticed while reading this code.
- fix a few typos in comments
- remove two `auto` uses where the type wasn't clear to me
- add comment saying that two sequential checks for `if (SparseChunks[SectionNumber] == PendingComdat)` are intentional
- name two parameters
No behavior change.
Differential Revision: https://reviews.llvm.org/D56677
llvm-svn: 351101
This reverts commit a9788dd6587d67c856df74eedff5a6ad34ce8320, reversing
changes made to f1309ffebf718d16aec4fab83380556c660e2825.
unintended merge pushed
llvm-svn: 351095
Evandro Menezes