Stephan T. Lavavej [Tue, 26 Sep 2017 23:08:41 +0000 (23:08 +0000)]
[libcxx] [test] Strip trailing whitespace.
llvm-svn: 314258
Stephan T. Lavavej [Tue, 26 Sep 2017 23:08:39 +0000 (23:08 +0000)]
[libcxx] [test] Silence warning C4324 for MSVC.
This warning "structure was padded due to alignment specifier" says
that the compiler is going to do exactly what you asked it to do.
It's triggered by the tests for over-aligned dynamic memory allocation.
llvm-svn: 314257
James Y Knight [Tue, 26 Sep 2017 22:44:01 +0000 (22:44 +0000)]
Initialize the RelocationSectionBase::Section member.
In r314227, it wasn't always, and would thus contain random garbage.
llvm-svn: 314256
Manoj Gupta [Tue, 26 Sep 2017 22:37:08 +0000 (22:37 +0000)]
[Builtins] Use 4 byte alignment for __aeabi_memclr.
Summary:
Align __aeabi_memclr to 4 bytes. All other ARM functions are already aligned to
4-bytes in compiler-rt.
(Split off from review D38227)
Reviewers: compnerd, peter.smith, srhines, weimingz, rengolin, kristof.beyls
Reviewed By: compnerd
Subscribers: aemerson, javed.absar, llvm-commits
Differential Revision: https://reviews.llvm.org/D38271
llvm-svn: 314255
Jakub Kuderski [Tue, 26 Sep 2017 21:56:55 +0000 (21:56 +0000)]
[Dominators] Invalidate DFS numbers upon edge deletions
This patch makes DeleteEdge correctly invalidate DFS numbers in the
incremental updater. This should fix PR34466 and related bugs.
llvm-svn: 314254
Sanjoy Das [Tue, 26 Sep 2017 21:54:27 +0000 (21:54 +0000)]
[BypassSlowDivision] Improve our handling of divisions by constants
Summary:
Don't bail out on constant divisors for divisions that can be narrowed without
introducing control flow . This gives us a 32 bit multiply instead of an
emulated 64 bit multiply in the generated PTX assembly.
Reviewers: jlebar
Subscribers: jholewinski, mcrosier, llvm-commits
Differential Revision: https://reviews.llvm.org/D38265
llvm-svn: 314253
Geoff Berry [Tue, 26 Sep 2017 21:40:46 +0000 (21:40 +0000)]
[AArch64][Falkor] Fix bug in falkor prefetcher fix pass.
Summary:
In rare cases, loads that don't get prefetched that were marked as
strided loads could cause a crash if they occurred in a loop with other
colliding loads.
Reviewers: mcrosier
Subscribers: aemerson, rengolin, javed.absar, kristof.beyls
Differential Revision: https://reviews.llvm.org/D38261
llvm-svn: 314252
Geoff Berry [Tue, 26 Sep 2017 21:40:41 +0000 (21:40 +0000)]
[AArch64][Falkor] Fix correctness bug in falkor prefetcher fix pass and correct some opcode tag computations.
Summary:
This addresses a correctness bug for LD[1234]*_POST opcodes that have
the prefetcher fix applied to them: the base register was not being
written back from the temp after being incremented, so it would appear
to never be incremented.
Also, fix some opcode tag computations based on some updated HW details
to get better tag avoidance and thus better prefetcher performance.
Reviewers: mcrosier
Subscribers: aemerson, rengolin, javed.absar, kristof.beyls
Differential Revision: https://reviews.llvm.org/D38256
llvm-svn: 314251
Craig Topper [Tue, 26 Sep 2017 21:35:11 +0000 (21:35 +0000)]
[X86] Fix register class name in a comment. NFC
llvm-svn: 314250
Craig Topper [Tue, 26 Sep 2017 21:35:09 +0000 (21:35 +0000)]
Recommit r314151 "[X86] Make all the NOREX CodeGenOnly instructions into postRA pseudos like the NOREX version of TEST.""
The late MOV8rr_NOREX that caused the crash has been removed.
llvm-svn: 314249
Craig Topper [Tue, 26 Sep 2017 21:35:06 +0000 (21:35 +0000)]
[X86] Don't emit X86::MOV8rr_NOREX from X86InstrInfo::copyPhysReg.
This hook is called after register allocation with two physical registers. We don't need a separate instruction at that time to force register class constraints. I left in the assert though. We also have a fatal error in X86MCCodeEmitter if we ever encode an H-reg and a REX prefix.
llvm-svn: 314248
Craig Topper [Tue, 26 Sep 2017 21:35:04 +0000 (21:35 +0000)]
[X86] Fix typo in comment. NFC
llvm-svn: 314247
Richard Smith [Tue, 26 Sep 2017 21:33:43 +0000 (21:33 +0000)]
Fix uninitialized member found by msan build bot.
llvm-svn: 314246
Sam Clegg [Tue, 26 Sep 2017 21:10:09 +0000 (21:10 +0000)]
[WebAssembly] Model weakly defined symbols as wasm exports
Previously these were being included as both imports and
exports, with the import being satisfied by the export
(or some strong symbol) at runtime. However proved
unnecessary and actually complicated linking as it meant
there was not a 1-to-1 mapping between a wasm function
/global index and a linker symbol.
Differential Revision: https://reviews.llvm.org/D38246
llvm-svn: 314245
Nemanja Ivanovic [Tue, 26 Sep 2017 20:42:47 +0000 (20:42 +0000)]
[PowerPC] Reverting sequence of patches for elimination of comparison instructions
In the past while, I've committed a number of patches in the PowerPC back end
aimed at eliminating comparison instructions. However, this causes some failures
in proprietary source and these issues are not observed in SPEC or any open
source packages I've been able to run.
As a result, I'm pulling the entire series and will refactor it to:
- Have a single entry point for easy control
- Have fine-grained control over which patterns we transform
A side-effect of this is that test cases for these patches (and modified by
them) are XFAIL-ed. This is a temporary measure as it is counter-productive
to remove/modify these test cases and then have to modify them again when
the refactored patch is recommitted.
The failure will be investigated in parallel to the refactoring effort and
the recommit will either have a fix for it or will leave this transformation
off by default until the problem is resolved.
llvm-svn: 314244
Jonathan Peyton [Tue, 26 Sep 2017 20:33:53 +0000 (20:33 +0000)]
Allow printing of KMP_TOPOLOGY_METHOD when KMP_SETTINGS=true
llvm-svn: 314243
Jonathan Peyton [Tue, 26 Sep 2017 20:12:16 +0000 (20:12 +0000)]
Remove unused t_single_lock
Add padding inside team structure to keep same structure size.
llvm-svn: 314242
Saleem Abdulrasool [Tue, 26 Sep 2017 20:12:04 +0000 (20:12 +0000)]
Sema: rename SemaBuiltinVAStart to SemaBuiltinVAStartMicrosoft
This function is used to perform semantic analysis on Microsoft style
`__va_start`. Rename it to make this more explicit. `__va_start` is
marked as `ALL_MS_LANGUAGES`, and requires Microsoft compatibility.
Other GNU targets will use `__builtin_va_start` instead. NFC.
Addresses post-commit review comments from David Majnemer.
llvm-svn: 314241
Gheorghe-Teodor Bercea [Tue, 26 Sep 2017 19:58:23 +0000 (19:58 +0000)]
Revert commmit 314228.
llvm-svn: 314240
Saleem Abdulrasool [Tue, 26 Sep 2017 19:26:01 +0000 (19:26 +0000)]
Basic: support Preserve{Most,All} CC on Windows
Add support for the `preserve_mostcc` and `preserve_allcc` on Windows
x86_64 and AArch64. This is used by Swift.
llvm-svn: 314236
Erich Keane [Tue, 26 Sep 2017 18:55:16 +0000 (18:55 +0000)]
Allow IUnknown/IInterface types to come from extern C++
It was brought up in response to my last implementation for
this struct-as-interface features that at least 1 header in
the MS SDK uses "extern C++" around an IUnknown declaration.
The previous implementation demanded that this type exist
in the TranslationUnit DeclContext. This small change simply
also allows in the situation where we're extern "C++".
llvm-svn: 314235
Michael Zuckerman [Tue, 26 Sep 2017 18:49:11 +0000 (18:49 +0000)]
[X86][LLVM]Expanding Supports lowerInterleavedStore() in X86InterleavedAccess (VF{8|16|32} stride 3)
This patch expands the support of lowerInterleavedStore to {8|16|32}x8i stride 3.
LLVM creates suboptimal shuffle code-gen for AVX2. In overall, this patch is a specific fix for the pattern (Strid=3 VF={8|16|32}) .
This patch is part two of two patches and it covers the store (interlevaed) side.
The patch goal is to optimize the following sequence:
a0 a1 a2 a3 a4 a5 a6 a7
b0 b1 b2 b3 b4 b5 b6 b7
c0 c1 c2 c3 c4 c5 c6 c7
into
a0 b0 c0 a1 b1 c1 a2 b2
c2 a3 b3 c3 a4 b4 c4 a5
b5 c5 a6 b6 c6 a7 b7 c7
Reviewers:
zvi
guyblank
dorit
Ayal
Differential Revision: https://reviews.llvm.org/D37117
Change-Id: I56ced8bcbea809a37654060771911ade20246ccc
llvm-svn: 314234
Craig Topper [Tue, 26 Sep 2017 18:47:25 +0000 (18:47 +0000)]
[InstCombine] Remove one use restriction on the shift for calls to foldICmpAndShift.
If this transformation succeeds, we're going to remove our dependency on the shift by rewriting the and. So it doesn't matter how many uses the shift has.
This distributes the one use check to other transforms in foldICmpAndConstConst that do need it.
Differential Revision: https://reviews.llvm.org/D38206
llvm-svn: 314233
Nico Weber [Tue, 26 Sep 2017 18:38:56 +0000 (18:38 +0000)]
Delete trailing whitespace.
llvm-svn: 314232
Richard Smith [Tue, 26 Sep 2017 18:37:55 +0000 (18:37 +0000)]
Resolve a defect in C++17 copy omission.
When selecting constructors for initializing an object of type T from a single
expression of class type U, also consider conversion functions of U that
convert to T (rather than modeling such conversions as calling a conversion
function and then calling a constructor).
This approach is proposed as the resolution for the defect, and is also already
implemented by GCC.
llvm-svn: 314231
Sam Clegg [Tue, 26 Sep 2017 18:21:12 +0000 (18:21 +0000)]
[WebAssembly] Use function/global index space in WasmSymbol
It is useful for the symbol to contain the index of the
function of global it represents in the function/global
index space.
For imports we also store the import index so that the
linker can find, for example, the signature of the
corresponding function, which is defined by the import
In the long run we need to decide whether this API
surface should be closer to binary (where imported
functions are seperate) or the wasm spec (where the
function index space is unified).
Differential Revision: https://reviews.llvm.org/D38189
llvm-svn: 314230
Erich Keane [Tue, 26 Sep 2017 18:20:39 +0000 (18:20 +0000)]
[Sema] Corrected the warn-on-throw-from-noexcept behavior to include nothrow
Discovered that 'nothrow' (which is supposed to be an alias for noexcept)
was not warning with a throw inside of it. This patch corrects the behavior
previously created to add 'nothrow' to this list.
Differential Revision: https://reviews.llvm.org/D38203
llvm-svn: 314229
Gheorghe-Teodor Bercea [Tue, 26 Sep 2017 18:12:12 +0000 (18:12 +0000)]
[OpenMP] Add an additional test for D34888
Summary: Test for checking if the mapping is performed correctly. This is a test initially included in Patch https://reviews.llvm.org/D29905
Reviewers: Hahnfeld, carlo.bertolli, caomhin
Reviewed By: Hahnfeld
Subscribers: tra, cfe-commits
Differential Revision: https://reviews.llvm.org/D38040
llvm-svn: 314228
Jake Ehrlich [Tue, 26 Sep 2017 18:02:25 +0000 (18:02 +0000)]
[llvm-objcopy] Add support for dynamic relocations
This change adds support for dynamic relocations (allocated
SHT_REL/SHT_RELA sections with a dynamic symbol table as their link).
The binary I added for the test is here:
https://drive.google.com/file/d/0B3gtIAmiMwZXSjJUZE9pUjd4M0k/view?usp=sharing
Unless support for dynamic symbol tables in yaml2obj is added this is
needed.
Differential Revision: https://reviews.llvm.org/D37915
llvm-svn: 314227
Saleem Abdulrasool [Tue, 26 Sep 2017 17:44:10 +0000 (17:44 +0000)]
Sema: Windows/ARM __va_start is not const correct
The `__va_start` intrinsic for Windows ARM does not account for const
correctness when performing a check. All local qualifiers are ignored
when validating the invocation. This was exposed by building the swift
stdlib against the Windows 10586 SDK for ARM. Simply expand out the
check for the two parameters and ignore the qualifiers for the check.
llvm-svn: 314226
Sean Callanan [Tue, 26 Sep 2017 17:25:34 +0000 (17:25 +0000)]
[Expression Parser] Inhibit global lookups for symbols in the IR dynamic checks
The IR dynamic checks are self-contained functions whose job is to
- verify that pointers referenced in an expression are valid at runtime; and
- verify that selectors sent to Objective-C objects by an expression are
actually supported by that object.
These dynamic checks forward-declare all the functions they use and should not
require any external debug information. The way they ensure this is by marking
all the names they use with a dollar sign ($). The expression parser recognizes
such symbols and perform no lookups for them.
This patch fixes three issues surrounding the use of the dollar sign:
- to fix a MIPS issue, the name of the pointer checker was changed from
starting with $ to starting with _$, but this was not properly ignored; and
- the Objective-C object checker used a temporary variable that did not start
with $.
- the Objective-C object checker used an externally-defined struct (struct
objc_selector) but didn't need to.
The patch also implements some cleanup in the area:
- it reformats the string containing the Objective-C object checker,
which was mangled horribly when the code was transformed to a uniform width
of 80 columns, and
- it factors out the logic for ignoring global $-symbols into common code
shared between ClangASTSource and ClangExpressionDeclMap.
Differential Revision: https://reviews.llvm.org/D38153
llvm-svn: 314225
Kostya Kortchinsky [Tue, 26 Sep 2017 17:20:02 +0000 (17:20 +0000)]
[scudo] Scudo thread specific data refactor, part 3
Summary:
Previous parts: D38139, D38183.
In this part of the refactor, we abstract the Linux vs Android TSD dissociation
in favor of a Exclusive vs Shared one, allowing for easier platform introduction
and configuration.
Most of this change consist of shuffling the files around to reflect the new
organization.
We introduce `scudo_platform.h` where platform specific definition lie. This
involves the TSD model and the platform specific allocator parameters. In an
upcoming CL, those will be configurable via defines, but we currently stick
with conservative defaults.
Reviewers: alekseyshl, dvyukov
Reviewed By: alekseyshl, dvyukov
Subscribers: srhines, llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D38244
llvm-svn: 314224
Artem Belevich [Tue, 26 Sep 2017 17:07:23 +0000 (17:07 +0000)]
[NVPTX] added match.{any,all}.sync instructions, intrinsics & builtins.
Differential Revision: https://reviews.llvm.org/D38191
llvm-svn: 314223
Simon Atanasyan [Tue, 26 Sep 2017 17:02:35 +0000 (17:02 +0000)]
[mips] Use llvm-dwarfdump to simplify the test. NFC
llvm-svn: 314222
Craig Topper [Tue, 26 Sep 2017 16:43:57 +0000 (16:43 +0000)]
[X86] Add support for v16i32 UMUL_LOHI/SMUL_LOHI
Summary: This patch extends the v8i32/v4i32 custom lowering to support v16i32
Reviewers: zvi, RKSimon
Reviewed By: RKSimon
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D38274
llvm-svn: 314221
Alexey Bataev [Tue, 26 Sep 2017 16:19:04 +0000 (16:19 +0000)]
[OPENMP] Fix handling of implicit mapping of array sections.
llvm-svn: 314220
Francis Ricci [Tue, 26 Sep 2017 16:12:56 +0000 (16:12 +0000)]
Invalidate symbolizer module list from dlopen/dlclose interceptors
Summary:
The module list should only be invalidated by dlopen and dlclose,
so the symbolizer should only re-generate it when we've hit one of those functions.
Reviewers: kubamracek, rnk, vitalybuka
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D37268
llvm-svn: 314219
Artem Dergachev [Tue, 26 Sep 2017 15:49:53 +0000 (15:49 +0000)]
[analyzer] Keep track of design discusions as part of analyzer documentation.
Create a directory to store discussions on potentially useful features that are
not yet implemented in the analyzer.
Fill it with a discussion on representing checker-specific parts of the program
state for C++ object modeling, that occured in D35216.
Differential Revision: https://reviews.llvm.org/D36737
llvm-svn: 314218
Gheorghe-Teodor Bercea [Tue, 26 Sep 2017 15:36:20 +0000 (15:36 +0000)]
[OpenMP] Don't throw cudalib not found error if only front-end is required.
Summary: If we only use the compiler front-end, do not throw an error about the cuda device library not being found. This allows the front-end to be run on systems where no Cuda installation is found.
Reviewers: Hahnfeld, ABataev, carlo.bertolli, caomhin, tra
Reviewed By: tra
Subscribers: hfinkel, tra, cfe-commits
Differential Revision: https://reviews.llvm.org/D37914
llvm-svn: 314217
Krzysztof Parzyszek [Tue, 26 Sep 2017 15:31:15 +0000 (15:31 +0000)]
[Hexagon] Fix a typo: #ifndef DEBUG -> #ifndef NDEBUG
llvm-svn: 314216
Gheorghe-Teodor Bercea [Tue, 26 Sep 2017 15:24:34 +0000 (15:24 +0000)]
Revert commit 314210.
llvm-svn: 314215
Krzysztof Parzyszek [Tue, 26 Sep 2017 15:06:37 +0000 (15:06 +0000)]
[Hexagon] Fix initialization of HexagonSubtarget
Make sure that "initializeSubtargetDependencies" sets all members that
InstrInfo and the like may depend on.
llvm-svn: 314214
Simon Dardis [Tue, 26 Sep 2017 15:01:21 +0000 (15:01 +0000)]
[mips] Accept but ignore -m(no-)branch-likely
-mbranch-likely and -mno-branch-likely are used in some build systems for
some MIPS targets. Accept these options but ignore them as they are an
(de)optimiztion hint, and that branch likely instructions were deprecated
but not removed from MIPS32 and MIPS64 ISAs.
Reviewers: atanasyan, nitesh.jain
Differential Revision: https://reviews.llvm.org/D38168
llvm-svn: 314213
Tobias Grosser [Tue, 26 Sep 2017 15:00:10 +0000 (15:00 +0000)]
[ScopInfo] Allow PHI nodes that reference an error block
As long as these PHI nodes are only referenced by terminator instructions.
llvm-svn: 314212
Krasimir Georgiev [Tue, 26 Sep 2017 14:58:29 +0000 (14:58 +0000)]
[clang-format] Add ext/ to google include categories
Summary: This adds an ext/ header include category for google style.
Reviewers: djasper
Reviewed By: djasper
Subscribers: cfe-commits, klimek
Differential Revision: https://reviews.llvm.org/D38243
llvm-svn: 314211
Gheorghe-Teodor Bercea [Tue, 26 Sep 2017 14:56:50 +0000 (14:56 +0000)]
[OpenMP] Add an additional test for D34888
Summary: Test for checking if the mapping is performed correctly. This is a test initially included in Patch https://reviews.llvm.org/D29905
Reviewers: Hahnfeld, carlo.bertolli, caomhin
Reviewed By: Hahnfeld
Subscribers: tra, cfe-commits
Differential Revision: https://reviews.llvm.org/D38040
llvm-svn: 314210
Ivan A. Kosarev [Tue, 26 Sep 2017 14:22:48 +0000 (14:22 +0000)]
Fix TBAA information for reference accesses
This patch fixes clang to decorate reference accesses as pointers
and not as "omnipotent chars".
Differential Revision: https://reviews.llvm.org/D38074
llvm-svn: 314209
Jonas Devlieghere [Tue, 26 Sep 2017 14:22:35 +0000 (14:22 +0000)]
[dwarfdump] Skip 'stripped' sections
When dsymutil generates the companion file, its strips all unnecessary
sections by omitting their body and setting the offset in their
corresponding load command to zero.
One such section is the .eh_frame section, as it contains runtime
information rather than debug information and is part of the __TEXT
segment. When reading this section, we would just read the number of
bytes specified in the load command, starting from offset 0 (i.e. the
beginning of the file).
Rather than trying to parse this obviously invalid section, dwarfdump
now skips this.
Differential revision: https://reviews.llvm.org/D38135
llvm-svn: 314208
Simon Pilgrim [Tue, 26 Sep 2017 14:12:50 +0000 (14:12 +0000)]
[X86][XOP] Merge rotation opcodes with AVX512 equivalents. NFCI.
The XOP rotations act as ROTL with +ve values and ROTR with -ve values, which means that we can treat them all as ROTL with unsigned modulo. We already check that we're only trying to lower as ROTL for XOP rotations.
Differential Revision: https://reviews.llvm.org/D37949
llvm-svn: 314207
Sanjay Patel [Tue, 26 Sep 2017 13:54:28 +0000 (13:54 +0000)]
[DSE] Merge stores when the later store only writes to memory locations the early store also wrote to (2nd try)
This is a 2nd attempt at:
https://reviews.llvm.org/rL310055
...which was reverted at rL310123 because of PR34074:
https://bugs.llvm.org/show_bug.cgi?id=34074
In this version, we break out of the inner loop after we successfully merge and kill a pair of stores. In the
earlier rev, we were continuing instead, which meant we could process the invalid info from a now dead store.
Original commit message (authored by Filipe Cabecinhas):
This fixes PR31777.
If both stores' values are ConstantInt, we merge the two stores
(shifting the smaller store appropriately) and replace the earlier (and
larger) store with an updated constant.
In the future we should also support vectors of integers. And maybe
float/double if we can.
Differential Revision: https://reviews.llvm.org/D30703
llvm-svn: 314206
Alexey Bataev [Tue, 26 Sep 2017 13:47:31 +0000 (13:47 +0000)]
[OPENMP] Generate implicit map|firstprivate clauses for target-based
directives.
If the variable is used in the target-based region but is not found in
any private|mapping clause, then generate implicit firstprivate|map
clauses for these implicitly mapped variables.
llvm-svn: 314205
George Rimar [Tue, 26 Sep 2017 13:35:00 +0000 (13:35 +0000)]
[ELF] - Remove wrong comment from testcase.
It was introduced by me in D37059.
Comment was saying that Weak binding is incorrect
for 'foo' symbol and that should be true for symbol in final output.
But at that place LTO temporarily file was checked,
where Weak binding for 'foo' is fine as LTO changes binding for
'LinkerRedefined' symbols internally to prevent IPO.
Binding for 'foo' in final output is correctly set to Global
and that tested just few lines below in the same testcase.
llvm-svn: 314204
Coby Tayree [Tue, 26 Sep 2017 13:28:05 +0000 (13:28 +0000)]
[x86] fix pr29061
https://bugs.llvm.org//show_bug.cgi?id=29061
Don't try referencing REX-needed regs when not on 64bit mode
Aligns to GCC
Differetial Revision: https://reviews.llvm.org/D37801
llvm-svn: 314203
Simon Pilgrim [Tue, 26 Sep 2017 12:59:01 +0000 (12:59 +0000)]
Tidyup P->getComplexPatternInfo call by moving it inside if( != NULL) test. NFCI.
llvm-svn: 314202
Sylvestre Ledru [Tue, 26 Sep 2017 11:56:43 +0000 (11:56 +0000)]
Don't move llvm.localescape outside the entry block in the GCOV profiling pass
Summary:
This fixes https://bugs.llvm.org/show_bug.cgi?id=34714.
Patch by Marco Castelluccio
Reviewers: rnk
Reviewed By: rnk
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D38224
llvm-svn: 314201
Simon Dardis [Tue, 26 Sep 2017 11:49:04 +0000 (11:49 +0000)]
[mips][asan] Fix preinstalled_signal.cc test for mips
Linux for mips has a non-standard layout for the kernel sigaction struct.
Adjust the layout by the minimally amount to get the test to pass, as we
don't require the usage of the restorer function.
llvm-svn: 314200
Benjamin Kramer [Tue, 26 Sep 2017 10:25:27 +0000 (10:25 +0000)]
Revert "[X86] Make all the NOREX CodeGenOnly instructions into postRA pseudos like the NOREX version of TEST."
Makes llc crash. This reverts commit r314151.
llvm-svn: 314199
Jonas Devlieghere [Tue, 26 Sep 2017 08:17:28 +0000 (08:17 +0000)]
[dsymutil] Better support for symbol aliases
This patch adds logic to follow a symbol's aliases when the symbol name
cannot be found in the current object file. It checks the main binary
for the symbol's address and queries the current object for its aliases
(symbols with the same address) before printing out a warning.
Differential revision: https://reviews.llvm.org/D38230
llvm-svn: 314198
Martin Storsjo [Tue, 26 Sep 2017 08:07:26 +0000 (08:07 +0000)]
Skip building unused parts when targeting SJLJ
When SJLJ exceptions are used, those functions aren't used.
This fixes build failures on ARM with SJLJ enabled (e.g. on armv7/iOS)
when built using the CMake project files.
Differential Revision: https://reviews.llvm.org/D38249
llvm-svn: 314197
Martin Storsjo [Tue, 26 Sep 2017 08:07:17 +0000 (08:07 +0000)]
Correct data types in the _Unwind_FunctionContext struct
This makes it match the definition used within llvm and in libgcc,
we previously got the wrong layout in 64 bit environments.
Differential Revision: https://reviews.llvm.org/D38247
llvm-svn: 314196
Uriel Korach [Tue, 26 Sep 2017 07:39:39 +0000 (07:39 +0000)]
[X86] Finishing broadcastf32x2 and broadcasti32x2 intrinsics lowering to IR. llvm side.
Removing X86 broadcast(f/i)32x2 intrinsics from llvm.
Adding autoUpgrade support.
Moving matching tests from avx512dq-intrinsics.ll to avx512dq-intrinsics-upgrade.ll and from avx512dqvl-intrinsics.ll to avx512dqvl-intrinsics-upgrade.ll.
Differential Revision: https://reviews.llvm.org/D38220
llvm-svn: 314195
Dean Michael Berris [Tue, 26 Sep 2017 04:29:25 +0000 (04:29 +0000)]
[XRay] Avoid actual linking when testing the driver
Use -### in the command to see just look for the output of -v.
Follow-up to D38226.
llvm-svn: 314194
Dean Michael Berris [Tue, 26 Sep 2017 04:17:37 +0000 (04:17 +0000)]
[XRay] Run command once without piping to FileCheck
This allows us to debug the failures that come up from the build bots.
Follow-up to D38226.
llvm-svn: 314193
Rui Ueyama [Tue, 26 Sep 2017 04:17:13 +0000 (04:17 +0000)]
Speed up SymbolTable::insert().
SymbolTable::insert() is a hot path function. When linking a clang debug
build, the function is called 3.7 million times. The total amount of "Name"
string contents is 300 MiB. That means this `Name.find("@@")` scans almost
300 MiB of data. That's far from negligible.
StringRef::find(StringRef) uses a sophisticated algorithm, but the
function is slow for a short needle. This patch replaces it with
StringRef::find(char).
This patch alone speeds up a clang debug build link time by 0.5 seconds
from 8.2s to 7.7s. That's 6% speed up. It seems too good for this tiny
change, but looks like it's real.
llvm-svn: 314192
Dean Michael Berris [Tue, 26 Sep 2017 04:07:45 +0000 (04:07 +0000)]
[XRay] Only run shared tests when 'enable_shared' is true
Follow-up to D38226.
llvm-svn: 314191
Dean Michael Berris [Tue, 26 Sep 2017 04:00:41 +0000 (04:00 +0000)]
[XRay] Remove -fPIC from shared build test.
Follow-up to D38226.
llvm-svn: 314190
Dean Michael Berris [Tue, 26 Sep 2017 03:45:37 +0000 (03:45 +0000)]
[XRay] Stop running tests for 'amd64', and remove -fPIE from tests.
Follow-up to D38226.
llvm-svn: 314189
Dean Michael Berris [Tue, 26 Sep 2017 03:18:11 +0000 (03:18 +0000)]
[XRay][Driver] Do not link in XRay runtime in shared libs
Summary:
This change ensures that we don't link in the XRay runtime when building
shared libraries with clang. This doesn't prevent us from building
shared libraris tht have XRay instrumentation sleds, but it does prevent
us from linking in the static XRay runtime into a shared library.
The XRay runtime currently doesn't support dynamic registration of
instrumentation sleds in shared objects, which we'll start enabling in
the future. That work has to happen in the back-end and in the runtime.
Reviewers: rnk, pelikan
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D38226
llvm-svn: 314188
Matthias Braun [Tue, 26 Sep 2017 02:37:23 +0000 (02:37 +0000)]
CodeGenModule: Adapt to LLVM TargetLibraryInfo changes
Adapt to LLVM TargetLibraryInfo changes in r314185.
See also https://reviews.llvm.org/D38106 and https://reviews.llvm.org/D37891
llvm-svn: 314187
Matthias Braun [Tue, 26 Sep 2017 02:36:58 +0000 (02:36 +0000)]
CMake: Add option to set LLVM_ENABLE_DUMP
Differential Revision: https://reviews.llvm.org/D38267
llvm-svn: 314186
Matthias Braun [Tue, 26 Sep 2017 02:36:57 +0000 (02:36 +0000)]
TargetLibraryInfo: Stop guessing wchar_t size
Usually the frontend communicates the size of wchar_t via metadata and
we can optimize wcslen (and possibly other calls in the future). In
cases without the wchar_size metadata we would previously try to guess
the correct size based on the target triple; however this is fragile to
keep up to date and may miss users manually changing the size via flags.
Better be safe and stop guessing and optimizing if the frontend didn't
communicate the size.
Differential Revision: https://reviews.llvm.org/D38106
llvm-svn: 314185
Dylan McKay [Tue, 26 Sep 2017 02:07:54 +0000 (02:07 +0000)]
[AVR] Fix the build after setting alignment to 1 in r314179
Changing all types to be byte-aligned broke a small number of tests.
llvm-svn: 314183
Dylan McKay [Tue, 26 Sep 2017 01:37:53 +0000 (01:37 +0000)]
[AVR] Prefer BasicBlock::getIterator over Function::begin()
Thanks to Eli Friedman for the suggestion.
llvm-svn: 314182
Rui Ueyama [Tue, 26 Sep 2017 00:54:24 +0000 (00:54 +0000)]
Split MergeSyntheticSection into Merge{Tail,NoTail}Section.
This patch alone is neutral in terms of code readability, but this
change makes a following patch easier to read.
llvm-svn: 314181
Dylan McKay [Tue, 26 Sep 2017 00:51:03 +0000 (00:51 +0000)]
[AVR] When lowering shifts into loops, put newly generated MBBs in the same
spot as the original MBB
Discovered in avr-rust/rust#62
https://github.com/avr-rust/rust/issues/62
Patch by Gergo Erdi.
llvm-svn: 314180
Dylan McKay [Tue, 26 Sep 2017 00:45:27 +0000 (00:45 +0000)]
[AVR] Use 1-byte alignment for all data types
This was an oversight in the original backend data layout.
The AVR architecture does not have the concept of unaligned loads - all
loads/stores from all addresses are aligned to one byte.
Discovered in avr-rust issue #64
https://github.com/avr-rust/rust/issues/64
Patch By Gergo Erdi.
llvm-svn: 314179
Dean Michael Berris [Tue, 26 Sep 2017 00:41:08 +0000 (00:41 +0000)]
Revert "[XRay][Driver] Do not link in XRay runtime in shared libs"
Reverts r314177.
llvm-svn: 314178
Dean Michael Berris [Mon, 25 Sep 2017 23:40:33 +0000 (23:40 +0000)]
[XRay][Driver] Do not link in XRay runtime in shared libs
Summary:
This change ensures that we don't link in the XRay runtime when building
shared libraries with clang. This doesn't prevent us from building
shared libraris tht have XRay instrumentation sleds, but it does prevent
us from linking in the static XRay runtime into a shared library.
The XRay runtime currently doesn't support dynamic registration of
instrumentation sleds in shared objects, which we'll start enabling in
the future. That work has to happen in the back-end and in the runtime.
Reviewers: rnk, pelikan
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D38226
llvm-svn: 314177
Vedant Kumar [Mon, 25 Sep 2017 23:10:04 +0000 (23:10 +0000)]
[docs] llvm-cov: Make docs for boolean options more consistent
llvm-svn: 314176
Vedant Kumar [Mon, 25 Sep 2017 23:10:03 +0000 (23:10 +0000)]
[llvm-cov] Warn if -show-functions is used without query files
llvm-cov's report mode does not print any output when -show-functions is
specified and no source files are specified. This can be surprising, so
the tool should at least print out an error message when this happens.
rdar://problem/
34636859
llvm-svn: 314175
Adrian Prantl [Mon, 25 Sep 2017 22:51:26 +0000 (22:51 +0000)]
Modernize comments
llvm-svn: 314174
Adrian Prantl [Mon, 25 Sep 2017 22:51:15 +0000 (22:51 +0000)]
Modernize comments
llvm-svn: 314173
Nico Weber [Mon, 25 Sep 2017 22:42:49 +0000 (22:42 +0000)]
clang-format/java: Always put space after `assert` keyword.
Previously, it was missing if the expression after the assert started with a (.
llvm-svn: 314172
Vlad Tsyrklevich [Mon, 25 Sep 2017 22:11:12 +0000 (22:11 +0000)]
Allow specifying sanitizers in blacklists
Summary:
This is the follow-up patch to D37924.
This change refactors clang to use the the newly added section headers
in SpecialCaseList to specify which sanitizers blacklists entries
should apply to, like so:
[cfi-vcall]
fun:*bad_vcall*
[cfi-derived-cast|cfi-unrelated-cast]
fun:*bad_cast*
The SanitizerSpecialCaseList class has been added to allow querying by
SanitizerMask, and SanitizerBlacklist and its downstream users have been
updated to provide that information. Old blacklists not using sections
will continue to function identically since the blacklist entries will
be placed into a '[*]' section by default matching against all
sanitizers.
Reviewers: pcc, kcc, eugenis, vsk
Reviewed By: eugenis
Subscribers: dberris, cfe-commits, mgorny
Differential Revision: https://reviews.llvm.org/D37925
llvm-svn: 314171
Vlad Tsyrklevich [Mon, 25 Sep 2017 22:11:11 +0000 (22:11 +0000)]
Add section headers to SpecialCaseLists
Summary:
Sanitizer blacklist entries currently apply to all sanitizers--there
is no way to specify that an entry should only apply to a specific
sanitizer. This is important for Control Flow Integrity since there are
several different CFI modes that can be enabled at once. For maximum
security, CFI blacklist entries should be scoped to only the specific
CFI mode(s) that entry applies to.
Adding section headers to SpecialCaseLists allows users to specify more
information about list entries, like sanitizer names or other metadata,
like so:
[section1]
fun:*fun1*
[section2|section3]
fun:*fun23*
The section headers are regular expressions. For backwards compatbility,
blacklist entries entered before a section header are put into the '[*]'
section so that blacklists without sections retain the same behavior.
SpecialCaseList has been modified to also accept a section name when
matching against the blacklist. It has also been modified so the
follow-up change to clang can define a derived class that allows
matching sections by SectionMask instead of by string.
Reviewers: pcc, kcc, eugenis, vsk
Reviewed By: eugenis, vsk
Subscribers: vitalybuka, llvm-commits
Differential Revision: https://reviews.llvm.org/D37924
llvm-svn: 314170
Eli Friedman [Mon, 25 Sep 2017 22:07:33 +0000 (22:07 +0000)]
Revert r312724 ("[ARM] Remove redundant vcvt patterns.").
It leads to some improvements, but also a regression for the simple
case, so it's not clearly a good idea.
test/CodeGen/ARM/vcvt.ll now has test coverage to show the difference.
Ultimately, the right solution is probably to custom-lower fp-to-int
conversions, to something like ARMISD::VCVT_F32_S32 plus a bitcast.
It's hard to do the right thing when the implicit bitcast isn't visible
to DAG transforms.
llvm-svn: 314169
Quentin Colombet [Mon, 25 Sep 2017 22:03:06 +0000 (22:03 +0000)]
[GlobalISel] Update the documentation and comment for G_[UN]MERGE_VALUES
In r296921, we added the G_[UN]MERGE_VALUES node, but did not update the
documentation. Fixing that.
NFC.
llvm-svn: 314168
Quentin Colombet [Mon, 25 Sep 2017 22:03:05 +0000 (22:03 +0000)]
[GlobalISel] Update the documentation for G_SEQUENCE
This instruction has been removed in r306120.
NFC.
llvm-svn: 314167
Quentin Colombet [Mon, 25 Sep 2017 22:03:01 +0000 (22:03 +0000)]
[GlobalISel] Update the documentation and comments for G_EXTRACT
In r297100, G_EXTRACT changed from a multiple results instruction to a
single result one. Update the documentation accordingly.
NFC.
llvm-svn: 314166
Saleem Abdulrasool [Mon, 25 Sep 2017 22:00:17 +0000 (22:00 +0000)]
X86: remove R12 from CSR on Windows x64 SwiftCC
R12 is used for the SwiftError parameter. It is no longer a CSR as it
is used for transfer the SwiftError, and the caller must preserve it if
they need to.
llvm-svn: 314165
Gheorghe-Teodor Bercea [Mon, 25 Sep 2017 21:56:32 +0000 (21:56 +0000)]
[OpenMP] Enable the existing nocudalib flag for OpenMP offloading toolchain.
Summary: Enable the -nocudalib flag for the OpenMP device offloading toolchain as well. Currently it can only be used for the CUDA toolchain.
Reviewers: Hahnfeld, ABataev, carlo.bertolli, caomhin, hfinkel, tra
Reviewed By: tra
Subscribers: hfinkel, cfe-commits
Differential Revision: https://reviews.llvm.org/D37913
llvm-svn: 314164
Eli Friedman [Mon, 25 Sep 2017 21:55:27 +0000 (21:55 +0000)]
[ARM] Fix tests for vcvt+store to return void.
This is what I meant to do in r314161; I didn't realize I'd messed up
because the generated assembly is currently identical.
llvm-svn: 314163
Francis Ricci [Mon, 25 Sep 2017 21:51:04 +0000 (21:51 +0000)]
Add missing include to sanitizer procmaps
llvm-svn: 314162
Eli Friedman [Mon, 25 Sep 2017 21:37:52 +0000 (21:37 +0000)]
[ARM] Add tests for vcvt followed by store.
llvm-svn: 314161
Eli Friedman [Mon, 25 Sep 2017 21:34:29 +0000 (21:34 +0000)]
[ARM] Regenerate vcvt test checks.
llvm-svn: 314160
Sanjay Patel [Mon, 25 Sep 2017 21:31:08 +0000 (21:31 +0000)]
[x86] make assertions less strict in avx512f test file
Missed a line in r314158.
llvm-svn: 314159
Sanjay Patel [Mon, 25 Sep 2017 21:27:37 +0000 (21:27 +0000)]
[x86] make assertions less strict in avx512f test file
I'm not sure why yet, but there may be differences depending on the host?
llvm-svn: 314158
Francis Ricci [Mon, 25 Sep 2017 21:26:34 +0000 (21:26 +0000)]
Fix style in sanitizer_procmaps.h
llvm-svn: 314157
Gheorghe-Teodor Bercea [Mon, 25 Sep 2017 21:25:38 +0000 (21:25 +0000)]
[OpenMP] Bugfix: output file name drops the absolute path where full path is needed.
Summary: When composing the output file name, the path to the file is being dropped. The full path is required.
Reviewers: Hahnfeld, ABataev, caomhin, carlo.bertolli, hfinkel, tra
Reviewed By: tra
Subscribers: hfinkel, tra, cfe-commits
Differential Revision: https://reviews.llvm.org/D37912
llvm-svn: 314156
Jason Molenda [Mon, 25 Sep 2017 21:23:37 +0000 (21:23 +0000)]
Remove the details of the libstdc++ implementation that were
in TestDataFormatterSkipSummary.py - I'm building this test
with the default c++ library.
Skip TestMTCSimple.py when running for i386.
llvm-svn: 314155