Nico Weber [Thu, 29 Nov 2018 22:56:40 +0000 (22:56 +0000)]
[gn build] Set +x bit on .py files in llvm/utils/gn/build.
Also add a shebang line to write_cmake_config.py.
llvm-svn: 347928
Nico Weber [Thu, 29 Nov 2018 22:53:21 +0000 (22:53 +0000)]
[gn build] Add template for running llvm-tblgen and use it to add build file for llvm/lib/IR.
Also adds a boring build file for llvm/lib/BinaryFormat (needed by llvm/lib/IR).
lib/IR marks Attributes and IntrinsicsEnum as public_deps (because IR's public
headers include the generated .inc files), so projects depending on lib/IR will
implicitly depend on them being generated. As a consequence, most targets won't
have to explicitly list a dependency on these tablegen steps (contrast with
intrinsics_gen in the cmake build).
This doesn't yet have the optimization where tablegen's output is only updated
if it's changed.
Differential Revision: https://reviews.llvm.org/D55028#inline-486755
llvm-svn: 347927
Adrian Prantl [Thu, 29 Nov 2018 22:33:09 +0000 (22:33 +0000)]
[-gmodules] Honor -fdebug-prefix-map in the debug info inside PCMs.
This patch passes -fdebug-prefix-map (a feature for renaming source
paths in the debug info) through to the per-module codegen options and
adds the debug prefix map to the module hash.
<rdar://problem/
46045865>
Differential Revision: https://reviews.llvm.org/D55037
llvm-svn: 347926
Nico Weber [Thu, 29 Nov 2018 22:25:31 +0000 (22:25 +0000)]
[gn build] Add a script checking if sources in BUILD.gn and CMakeLists.txt files match.
Also fix a missing file in lib/Support/BUILD.gn found by the script.
The script is very stupid and assumes that CMakeLists.txt follow the standard
LLVM CMakeLists.txt formatting with one cpp source file per line. Despite its
simplicity, it works well in practice.
It would be nice if it also checked deps and maybe automatically applied its
suggestions.
Differential Revision: https://reviews.llvm.org/D54930
llvm-svn: 347925
Stella Stamenova [Thu, 29 Nov 2018 22:15:23 +0000 (22:15 +0000)]
[lldbsuite] Build with -gdwarf on Windows
Earlier this month there was a change in clang that defaulted to using codeview rather than dwarf on Windows. Since all the tests rely on dwarf, we need to explicitly request dwarf when building on Windows.
llvm-svn: 347924
Thomas Lively [Thu, 29 Nov 2018 22:01:01 +0000 (22:01 +0000)]
[WebAssembly] Expand unavailable integer operations for vectors
Summary:
Expands for vector types all of the integer operations that are
expanded for scalars because they are not supported at all by
WebAssembly.
This CL has no tests because such tests would really be testing the
target-independent expansion, but I'm happy to add tests if reviewers
think it would be helpful.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D55010
llvm-svn: 347923
Jonas Devlieghere [Thu, 29 Nov 2018 21:58:23 +0000 (21:58 +0000)]
Produce an error on non-encodable offsets for darwin ARM scattered relocations.
Scattered ARM relocations for Mach-O's only have 24 bits available to
encode the offset. This is not checked but just truncated and can result
in corrupt binaries after linking because the relocations are applied to
the wrong offset. This patch will check and error out in those
situations instead of emitting a wrong relocation.
Patch by: Sander Bogaert (dzn)
Differential revision: https://reviews.llvm.org/D54776
llvm-svn: 347922
Louis Dionne [Thu, 29 Nov 2018 21:25:29 +0000 (21:25 +0000)]
[libcxx] Make UNSUPPORTED for std::async test more fine grained
The test was previously marked as unsupported on all Apple platforms, when
we really just want to mark it as unsupported for previously shipped dylibs
on macosx.
llvm-svn: 347920
Alexey Bataev [Thu, 29 Nov 2018 21:21:32 +0000 (21:21 +0000)]
[OPENMP][NVPTX]Call get __kmpc_global_thread_num in worker after
initialization.
Function __kmpc_global_thread_num should be called only after
initialization, not earlier.
llvm-svn: 347919
Paul Robinson [Thu, 29 Nov 2018 21:13:51 +0000 (21:13 +0000)]
Comment tweak requested in code review. NFC
I forgot to do this before committing D54755.
llvm-svn: 347918
Sanjay Patel [Thu, 29 Nov 2018 20:58:26 +0000 (20:58 +0000)]
[DAGCombiner] narrow truncated binops
The motivating case for this is shown in:
https://bugs.llvm.org/show_bug.cgi?id=32023
and the corresponding rot16.ll regression tests.
Because x86 scalar shift amounts are i8 values, we can end up with trunc-binop-trunc
sequences that don't get folded in IR.
As the TODO comments suggest, there will be regressions if we extend this (for x86,
we mostly seem to be missing LEA opportunities, but there are likely vector folds
missing too). I think those should be considered existing bugs because this is the
same transform that we do as an IR canonicalization in instcombine. We just need
more tests to make those visible independent of this patch.
Differential Revision: https://reviews.llvm.org/D54640
llvm-svn: 347917
Martin Storsjo [Thu, 29 Nov 2018 20:53:57 +0000 (20:53 +0000)]
[obj2yaml] [COFF] Write RVA instead of VA for sections, fix roundtripping executables
yaml2obj writes the yaml value as is to the output file.
Differential Revision: https://reviews.llvm.org/D54965
llvm-svn: 347916
Gheorghe-Teodor Bercea [Thu, 29 Nov 2018 20:53:49 +0000 (20:53 +0000)]
[OpenMP] Add a new version of the SPMD deinit kernel function
Summary: This patch adds a new runtime for the SPMD deinit kernel function which replaces the previous function. The new function takes as argument the flag which signals whether the runtime is required or not. This enables the compiler to optimize out the part of the deinit function which are not needed.
Reviewers: ABataev, caomhin
Reviewed By: ABataev
Subscribers: jholewinski, guansong, cfe-commits
Differential Revision: https://reviews.llvm.org/D54970
llvm-svn: 347915
Alex Bradbury [Thu, 29 Nov 2018 20:43:42 +0000 (20:43 +0000)]
[RISCV] Implement codegen for cmpxchg on RV32IA
Utilise a similar ('late') lowering strategy to D47882. The changes to
AtomicExpandPass allow this strategy to be utilised by other targets which
implement shouldExpandAtomicCmpXchgInIR.
All cmpxchg are lowered as 'strong' currently and failure ordering is ignored.
This is conservative but correct.
Differential Revision: https://reviews.llvm.org/D48131
llvm-svn: 347914
Leonard Mosescu [Thu, 29 Nov 2018 20:41:10 +0000 (20:41 +0000)]
Adding .vscode to svn:ignore
llvm-svn: 347913
Craig Topper [Thu, 29 Nov 2018 20:18:58 +0000 (20:18 +0000)]
[X86] Change the pre-type legalization DAG combine added in r347898 into a custom type legalization operation instead.
This seems to produce the same results on the tests we have.
llvm-svn: 347912
David Stuttard [Thu, 29 Nov 2018 20:14:17 +0000 (20:14 +0000)]
Revert r347871 "Fix: Add support for TFE/LWE in image intrinsic"
Also revert fix r347876
One of the buildbots was reporting a failure in some relevant tests that I can't
repro or explain at present, so reverting until I can isolate.
llvm-svn: 347911
Artur Pilipenko [Thu, 29 Nov 2018 20:08:12 +0000 (20:08 +0000)]
Introduce MaxUsesToExplore argument to capture tracking
Currently CaptureTracker gives up if it encounters a value with more than 20
uses. The motivation for this cap is to keep it relatively cheap for
BasicAliasAnalysis use case, where the results can't be cached. Although, other
clients of CaptureTracker might be ok with higher cost. This patch introduces an
argument for PointerMayBeCaptured functions to specify the max number of uses to
explore. The motivation for this change is a downstream user of CaptureTracker,
but I believe upstream clients of CaptureTracker might also benefit from more
fine grained cap.
Reviewed By: hfinkel
Differential Revision: https://reviews.llvm.org/D55042
llvm-svn: 347910
Sam Clegg [Thu, 29 Nov 2018 20:07:13 +0000 (20:07 +0000)]
[WebAssembly] Allow undefined symbols when building shared libraries
Differential Revision: https://reviews.llvm.org/D55043
llvm-svn: 347909
Marshall Clow [Thu, 29 Nov 2018 20:04:47 +0000 (20:04 +0000)]
Revert commit r347904 because it broke older compilers
llvm-svn: 347908
Jonathan Peyton [Thu, 29 Nov 2018 20:04:29 +0000 (20:04 +0000)]
[OpenMP] Add stubs for Task affinity API
This patch adds __kmpc_omp_reg_task_with_affinity to register affinity
information for tasks. For now, the affinity information is not used,
and the function always succeeds. This also adds the kmp_task_affinity_info_t
structure to store the task affinity information.
Patch by Terry Wilmarth
Differential Revision: https://reviews.llvm.org/D55026
llvm-svn: 347907
Francis Visoiu Mistrih [Thu, 29 Nov 2018 20:03:19 +0000 (20:03 +0000)]
[MachineScheduler] Order FI-based memops based on stack direction
It makes more sense to order FI-based memops in descending order when
the stack goes down. This allows offsets to stay "consecutive" and allow
easier pattern matching.
llvm-svn: 347906
Stephen Kelly [Thu, 29 Nov 2018 19:50:10 +0000 (19:50 +0000)]
Revert "NFC: Fix case of CommentVisitor::Visit methods"
This reverts commit
0859c80137ac5fb3c86e7802cb8c5ef56f921cce.
llvm-svn: 347905
Marshall Clow [Thu, 29 Nov 2018 19:49:48 +0000 (19:49 +0000)]
First part of P0482 - Establish that char8_t is an integral type, and that numeric_limits<char8_t> is valid and sane.
llvm-svn: 347904
Louis Dionne [Thu, 29 Nov 2018 19:44:57 +0000 (19:44 +0000)]
[libcxx] Remove bad_array_length
Summary:
std::bad_array_length was added by n3467, but this never made it into C++.
This commit removes the definition of std::bad_array_length from the headers
AND from the shared library. See the comments in the ABI changelog for details
about the ABI implications of this change.
Reviewers: mclow.lists, dexonsmith, howard.hinnant, EricWF
Subscribers: christof, jkorous, libcxx-commits
Differential Revision: https://reviews.llvm.org/D54804
llvm-svn: 347903
Craig Topper [Thu, 29 Nov 2018 19:36:17 +0000 (19:36 +0000)]
[SelectionDAG][AArch64][X86] Move legalization of vector MULHS/MULHU from LegalizeDAG to LegalizeVectorOps
I believe we should be legalizing these with the rest of vector binary operations. If any custom lowering is required for these nodes, this will give the DAG combine between LegalizeVectorOps and LegalizeDAG to run on the custom code before constant build_vectors are lowered in LegalizeDAG.
I've moved MULHU/MULHS handling in AArch64 from Lowering to isel. Moving the lowering earlier caused build_vector+extract_subvector simplifications to kick in which made the generated code worse.
Differential Revision: https://reviews.llvm.org/D54276
llvm-svn: 347902
Stephen Kelly [Thu, 29 Nov 2018 19:31:32 +0000 (19:31 +0000)]
NFC: Fix case of CommentVisitor::Visit methods
This difference is very visible because it is used with other Visitor
classes together.
llvm-svn: 347901
Stephen Kelly [Thu, 29 Nov 2018 19:30:37 +0000 (19:30 +0000)]
NFC: Move ColorScope to global scope
llvm-svn: 347900
Stephen Kelly [Thu, 29 Nov 2018 19:30:08 +0000 (19:30 +0000)]
NFC: Constify ShowColors
llvm-svn: 347899
Craig Topper [Thu, 29 Nov 2018 19:13:38 +0000 (19:13 +0000)]
[X86] Add a DAG combine pre type legalization to widen division by constant splat on narrow vectors to avoid scalarization
This is another patch for -x86-experimental-vector-widening. This pre widens narrow division by constants so that we can get pass the legal type check in the generic DAG combiner. Otherwise we end up scalarizing.
I've restricted this to splats for now because it was easy to just call DAG.getConstant. Not sure what we should do for non-splat? Increase the element size?Widen the constant vector by padding with 1?
Differential Revision: https://reviews.llvm.org/D54919
llvm-svn: 347898
Zhizhou Yang [Thu, 29 Nov 2018 18:52:22 +0000 (18:52 +0000)]
set default max-page-size to 4KB in lld for Android Aarch64
Summary:
This patch passes an option '-z max-page-size=4096' to lld through clang driver.
This is for Android on Aarch64 target.
The lld default page size is too large for Aarch64, which produces larger .so files and images for arm64 device targets.
In this patch we set default page size to 4KB for Android Aarch64 targets instead.
Reviewers: srhines, danalbert, ruiu, chh, peter.smith
Reviewed By: srhines
Subscribers: javed.absar, kristof.beyls, cfe-commits, george.burgess.iv, llozano
Differential Revision: https://reviews.llvm.org/D55029
llvm-svn: 347897
Sanjay Patel [Thu, 29 Nov 2018 18:44:39 +0000 (18:44 +0000)]
[InstSimplify] fold select with implied condition
This is an almost direct move of the functionality from InstCombine to
InstSimplify. There's no reason not to do this in InstSimplify because
we never create a new value with this transform.
(There's a question of whether any dominance-based transform belongs in
either of these passes, but that's a separate issue.)
I've changed 1 of the conditions for the fold (1 of the blocks for the
branch must be the block we started with) into an assert because I'm not
sure how that could ever be false.
We need 1 extra check to make sure that the instruction itself is in a
basic block because passes other than InstCombine may be using InstSimplify
as an analysis on values that are not wired up yet.
The 3-way compare changes show that InstCombine has some kind of
phase-ordering hole. Otherwise, we would have already gotten the intended
final result that we now show here.
llvm-svn: 347896
Fangrui Song [Thu, 29 Nov 2018 18:26:39 +0000 (18:26 +0000)]
Simplify the __builtin_constant_p test that was used to catch rC347417 failure
Reviewers: rsmith, void, shafik
Reviewed By: void
Subscribers: kristina, cfe-commits
Differential Revision: https://reviews.llvm.org/D54964
llvm-svn: 347895
Krzysztof Parzyszek [Thu, 29 Nov 2018 18:20:08 +0000 (18:20 +0000)]
[TableGen] Examine entire subreg compositions to detect ambiguity
When tablegen detects that there exist two subregister compositions that
result in the same value for some register, it will emit a warning. This
kind of an overlap in compositions should only happen when it is caused
by a user-defined composition. It can happen, however, that the user-
defined composition is not identically equal to another one, but it does
produce the same value for one or more registers. In such cases suppress
the warning.
This patch is to silence the warning when building the System Z backend
after D50725.
Differential Revision: https://reviews.llvm.org/D50977
llvm-svn: 347894
Volkan Keles [Thu, 29 Nov 2018 18:19:24 +0000 (18:19 +0000)]
[GlobalISel] LegalizationArtifactCombiner: Combine aext([asz]ext x) -> [asz]ext x
Summary:
Replace `aext([asz]ext x)` with `aext/sext/zext x` in order to
reduce the number of instructions generated to clean up some
legalization artifacts.
Reviewers: aditya_nandakumar, dsanders, aemerson, bogner
Reviewed By: aemerson
Subscribers: rovka, kristof.beyls, javed.absar, llvm-commits
Differential Revision: https://reviews.llvm.org/D54174
llvm-svn: 347893
Teresa Johnson [Thu, 29 Nov 2018 18:02:31 +0000 (18:02 +0000)]
Add missing REQUIRES to new test
Test added in r347887 requires an x86 target.
llvm-svn: 347892
Fangrui Song [Thu, 29 Nov 2018 17:32:51 +0000 (17:32 +0000)]
[llvm-objcopy] Delete redundant !Config.xx.empty() when followed by positive is_contained() check
Summary: The original intention of !Config.xx.empty() was probably to emphasize the thing that is currently considered, but I feel the simplified form is actually easier to understand and it is also consistent with the call sites in other llvm components.
Reviewers: alexshap, rupprecht, jakehehrlich, jhenderson, espindola
Reviewed By: alexshap, rupprecht
Subscribers: emaste, arichardson, llvm-commits
Differential Revision: https://reviews.llvm.org/D55040
llvm-svn: 347891
Serge Guelton [Thu, 29 Nov 2018 17:21:54 +0000 (17:21 +0000)]
Avoid redundant reference to isPodLike in SmallVect/Optional implementation
NFC, preparatory work for isPodLike cleaning.
Differential Revision: https://reviews.llvm.org/D55005
llvm-svn: 347890
John Brawn [Thu, 29 Nov 2018 17:10:00 +0000 (17:10 +0000)]
[LICM] Reapply r347776 "Make LICM able to hoist phis" with fix
This commit caused a large compile-time slowdown in some cases when NDEBUG is
off due to the dominator tree verification it added. Fix this by only doing
dominator tree and loop info verification when something has been hoisted.
Differential Revision: https://reviews.llvm.org/D52827
llvm-svn: 347889
Kristof Umann [Thu, 29 Nov 2018 17:09:41 +0000 (17:09 +0000)]
[analyzer][PlistMacroExpansion] Part 4.: Support for __VA_ARGS__
Differential Revision: https://reviews.llvm.org/D52986
llvm-svn: 347888
Teresa Johnson [Thu, 29 Nov 2018 17:02:59 +0000 (17:02 +0000)]
[ThinLTO] Allow importing of multiple symbols with same GUID
Summary:
The is the clang side of the fix in D55047, to handle the case where
two different modules have local variables with the same GUID because
they had the same source file name at compilation time. Allow multiple
symbols with the same GUID to be imported, and test that this case works
with the distributed backend path.
Depends on D55047.
Reviewers: evgeny777
Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D55048
llvm-svn: 347887
Teresa Johnson [Thu, 29 Nov 2018 17:02:42 +0000 (17:02 +0000)]
[ThinLTO] Import local variables from the same module as caller
Summary:
We can sometimes end up with multiple copies of a local variable that
have the same GUID in the index. This happens when there are local
variables with the same name that are in different source files having the
same name/path at compile time (but compiled into different bitcode objects).
In this case make sure we import the copy in the caller's module.
This enables importing both of the variables having the same GUID
(but which will have different promoted names since the module paths,
and therefore the module hashes, will be distinct).
Importing the wrong copy is particularly problematic for read only
variables, since we must import them as a local copy whenever
referenced. Otherwise we get undefs at link time.
Note that the llvm-lto.cpp and ThinLTOCodeGenerator changes are needed
for testing the distributed index case via clang, which will be sent as
a separate clang-side patch shortly. We were previously not doing the
dead code/read only computation before computing imports when testing
distributed index generation (like it was for testing importing and
other ThinLTO mechanisms alone).
Reviewers: evgeny777
Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, dang, llvm-commits
Differential Revision: https://reviews.llvm.org/D55047
llvm-svn: 347886
James Y Knight [Thu, 29 Nov 2018 16:46:34 +0000 (16:46 +0000)]
git-llvm: Fix incremental population of svn tree.
"svn update --depth=..." is, annoyingly, not a specification of the
desired depth, but rather a _limit_ added on top of the "sticky" depth
in the working-directory. However, if the directory doesn't exist yet,
then it sets the sticky depth of the new directory entries.
Unfortunately, the svn command-line has no way of expanding the depth
of a directory from "empty" to "files", without also removing any
already-expanded subdirectories. The way you're supposed to increase
the depth of an existing directory is via --set-depth, but
--set-depth=files will also remove any subdirs which were already
requested.
This change avoids getting into the state of ever needing to increase
the depth of an existing directory from "empty" to "files" in the
first place, by:
1. Use svn update --depth=files, not --depth=immediates.
The latter has the effect of checking out the subdirectories and
marking them as depth=empty. The former excludes sub-directories from
the list of entries, which avoids the problem.
2. Explicitly populate missing parent directories.
Using --parents seemed nice and easy, but it marks the parent dirs as
depth=empty. Instead, check out parents explicitly if they're missing.
llvm-svn: 347883
Sanjay Patel [Thu, 29 Nov 2018 16:28:37 +0000 (16:28 +0000)]
[SimplifyCFG] auto-generate complete checks; NFC
llvm-svn: 347882
Sanjay Patel [Thu, 29 Nov 2018 16:26:03 +0000 (16:26 +0000)]
[InstCombine] auto-generate complete checks; NFC
llvm-svn: 347881
Graham Sellers [Thu, 29 Nov 2018 16:05:38 +0000 (16:05 +0000)]
[AMDGPU] Add and update scalar instructions
This patch adds support for S_ANDN2, S_ORN2 32-bit and 64-bit instructions and adds splits to move them to the vector unit (for which there is no equivalent instruction). It modifies the way that the more complex scalar instructions are lowered to vector instructions by first breaking them down to sequences of simpler scalar instructions which are then lowered through the existing code paths. The pattern for S_XNOR has also been updated to apply inversion to one input rather than the output of the XOR as the result is equivalent and may allow leaving the NOT instruction on the scalar unit.
A new tests for NAND, NOR, ANDN2 and ORN2 have been added, and existing tests now hit the new instructions (and have been modified accordingly).
Differential: https://reviews.llvm.org/D54714
llvm-svn: 347877
David Stuttard [Thu, 29 Nov 2018 15:56:36 +0000 (15:56 +0000)]
Fix: Add support for TFE/LWE in image intrinsic
My change svn-id: 347871 caused a buildbot failure due to an unused
variable def (used in an assert).
Change-Id: Ia882d18bb6fa79b4d7bbfda422b9ea5d23eab336
llvm-svn: 347876
Louis Dionne [Thu, 29 Nov 2018 15:52:36 +0000 (15:52 +0000)]
[libcxx] More fixes to XFAILs for aligned allocation tests for macosx 10.13
Those tests are a real pain to tweak.
llvm-svn: 347875
Hans Wennborg [Thu, 29 Nov 2018 15:47:24 +0000 (15:47 +0000)]
Revert r347823 "[TextAPI] Switch back to a custom Platform enum."
It broke the Windows buildbots, e.g.
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/21829/steps/test/logs/stdio
This also reverts the follow-ups: r347824, r347827, and r347836.
llvm-svn: 347874
Matt Arsenault [Thu, 29 Nov 2018 15:45:05 +0000 (15:45 +0000)]
Mark __builtin_shufflevector as using custom type checking
The custom handling seems to all be implemented already.
This avoids regressions in a future patch when float vectors
are ordinarily promoted to double vectors in variadic calls.
llvm-svn: 347873
Joseph Tremoulet [Thu, 29 Nov 2018 15:27:04 +0000 (15:27 +0000)]
[CallSiteSplitting] Report edge deletion to DomTreeUpdater
Summary:
When splitting musttail calls, the split blocks' original terminators
get removed; inform the DTU when this happens.
Also add a testcase that fails an assertion in the DTU without this fix.
Reviewers: fhahn, junbuml
Reviewed By: fhahn
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D55027
llvm-svn: 347872
David Stuttard [Thu, 29 Nov 2018 15:21:13 +0000 (15:21 +0000)]
Add support for TFE/LWE in image intrinsics
TFE and LWE support requires extra result registers that are written in the
event of a failure in order to detect that failure case.
The specific use-case that initiated these changes is sparse texture support.
This means that if image intrinsics are used with either option turned on, the
programmer must ensure that the return type can contain all of the expected
results. This can result in redundant registers since the vector size must be a
power-of-2.
This change takes roughly 6 parts:
1. Modify the instruction defs in tablegen to add new instruction variants that
can accomodate the extra return values.
2. Updates to lowerImage in SIISelLowering.cpp to accomodate setting TFE or LWE
(where the bulk of the work for these instruction types is now done)
3. Extra verification code to catch cases where intrinsics have been used but
insufficient return registers are used.
4. Modification to the adjustWritemask optimisation to account for TFE/LWE being
enabled (requires extra registers to be maintained for error return value).
5. An extra pass to zero initialize the error value return - this is because if
the error does not occur, the register is not written and thus must be zeroed
before use. Also added a new (on by default) option to ensure ALL return values
are zero-initialized that is required for sparse texture support.
6. Disable the inst_combine optimization in the presence of tfe/lwe (later TODO
for this to re-enable and handle correctly).
There's an additional fix now to avoid a dmask=0
For an image intrinsic with tfe where all result channels except tfe
were unused, I was getting an image instruction with dmask=0 and only a
single vgpr result for tfe. That is incorrect because the hardware
assumes there is at least one vgpr result, plus the one for tfe.
Fixed by forcing dmask to 1, which gives the desired two vgpr result
with tfe in the second one.
The TFE or LWE result is returned from the intrinsics using an aggregate
type. Look in the test code provided to see how this works, but in essence IR
code to invoke the intrinsic looks as follows:
%v = call {<4 x float>,i32} @llvm.amdgcn.image.load.1d.v4f32i32.i32(i32 15,
i32 %s, <8 x i32> %rsrc, i32 1, i32 0)
%v.vec = extractvalue {<4 x float>, i32} %v, 0
%v.err = extractvalue {<4 x float>, i32} %v, 1
Differential revision: https://reviews.llvm.org/D48826
Change-Id: If222bc03642e76cf98059a6bef5d5bffeda38dda
llvm-svn: 347871
David Callahan [Thu, 29 Nov 2018 14:57:14 +0000 (14:57 +0000)]
inhereit LLVM_ENABLE_LIBXML2
Summary: When building in an LLVM context, we should respect its LLVM_ENABLE_LIBXML2 option.
Reviewers: vitalybuka, mspertus, modocache
Reviewed By: modocache
Subscribers: mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D53212
llvm-svn: 347870
Stefan Granitz [Thu, 29 Nov 2018 14:51:49 +0000 (14:51 +0000)]
[CMake] Fix standalone build for debugserver on macOS
Summary:
Quick-fix to avoid CMake config issue:
```
CMake Error at /path/to/lldb/cmake/modules/AddLLDB.cmake:116 (add_dependencies):
Cannot add target-level dependencies to non-existent target "lldb-suite".
```
Reviewers: xiaobai, beanz
Subscribers: mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D55032
llvm-svn: 347869
Sanjay Patel [Thu, 29 Nov 2018 14:41:21 +0000 (14:41 +0000)]
[CVP] tidy processCmp(); NFC
1. The variables were confusing: 'C' typically refers to a constant, but here it was the Cmp.
2. Formatting violations.
3. Simplify code to return true/false constant.
llvm-svn: 347868
Martin Storsjo [Thu, 29 Nov 2018 14:39:39 +0000 (14:39 +0000)]
Revert "[LICM] Enable control flow hoisting by default" and "[LICM] Reapply r347190 "Make LICM able to hoist phis" with fix"
This reverts commits r347776 and r347778.
The first one, r347776, caused significant compile time regressions
for certain input files, see PR39836 for details.
llvm-svn: 347867
Sanjay Patel [Thu, 29 Nov 2018 14:28:47 +0000 (14:28 +0000)]
[CVP] auto-generate complete test checks; NFC
llvm-svn: 347866
Anastasia Stulova [Thu, 29 Nov 2018 14:11:15 +0000 (14:11 +0000)]
[OpenCL] Improve diags for addr spaces in templates
Fix ICEs on template instantiations that were leading to
the creation of invalid code patterns with address spaces.
Incorrect cases are now diagnosed properly.
Differential Revision: https://reviews.llvm.org/D54858
llvm-svn: 347865
Hans Wennborg [Thu, 29 Nov 2018 13:58:02 +0000 (13:58 +0000)]
Revert r347596 "Support for inserting profile-directed cache prefetches"
It causes asserts building BoringSSL. See https://crbug.com/91009#c3 for
repro.
This also reverts the follow-ups:
Revert r347724 "Do not insert prefetches with unsupported memory operands."
Revert r347606 "[X86] Add dependency from X86 to ProfileData after rL347596"
Revert r347607 "Add new passes to X86 pipeline tests"
llvm-svn: 347864
Raphael Isemann [Thu, 29 Nov 2018 13:50:30 +0000 (13:50 +0000)]
Set MustBuildLookupTable on PrimaryContext in ExternalASTMerger
Summary:
`MustBuildLookupTable` must always be called on a primary context as we otherwise
trigger an assert, but we don't ensure that this will always happen in our code right now.
This patch explicitly requests the primary context when doing this call as this shouldn't break
anything (as calling `getPrimaryContext` on a context which is its own primary context is a no-op)
but will catch these rare cases where we somehow operate on a declaration context that is
not its own primary context.
See also D54863.
Reviewers: martong, a.sidorin, shafik
Reviewed By: martong
Subscribers: davide, rnkovacs, cfe-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D54898
llvm-svn: 347863
Petr Pavlu [Thu, 29 Nov 2018 13:22:53 +0000 (13:22 +0000)]
[GlobalISel] Fix insertion of stack-protector epilogue
* Tell the StackProtector pass to generate the epilogue instrumentation
when GlobalISel is enabled because GISel currently does not implement
the same deferred epilogue insertion as SelectionDAG.
* Update StackProtector::InsertStackProtectors() to find a stack guard
slot by searching for the llvm.stackprotector intrinsic when the
prologue was not created by StackProtector itself but the pass still
needs to generate the epilogue instrumentation. This fixes a problem
when the pass would abort because the stack guard AllocInst pointer
was null when generating the epilogue -- test
CodeGen/AArch64/GlobalISel/arm64-irtranslator-stackprotect.ll.
Differential Revision: https://reviews.llvm.org/D54518
llvm-svn: 347862
Petr Pavlu [Thu, 29 Nov 2018 12:56:32 +0000 (12:56 +0000)]
[GlobalISel] Make EnableGlobalISel always set when GISel is enabled
Change meaning of TargetOptions::EnableGlobalISel. The flag was
previously set only when a target switched on GlobalISel but it is now
always set when the GlobalISel pipeline is enabled. This makes the flag
consistent with TargetOptions::EnableFastISel and allows its use in
other parts of the compiler to determine when GlobalISel is enabled.
The EnableGlobalISel flag had previouly only one use in
TargetPassConfig::isGlobalISelAbortEnabled(). The method used its value
to determine if GlobalISel was enabled by a target and returned false in
such a case. To preserve the current behaviour, a new flag
TargetOptions::GlobalISelAbort is introduced to separately record the
abort behaviour.
Differential Revision: https://reviews.llvm.org/D54518
llvm-svn: 347861
Aaron Ballman [Thu, 29 Nov 2018 12:45:50 +0000 (12:45 +0000)]
Adding a FIXME test to document an area for improvement with the cert-err58-cpp check; NFC.
llvm-svn: 347860
George Rimar [Thu, 29 Nov 2018 12:44:10 +0000 (12:44 +0000)]
[LLDB] - Improve the support of .debug_str_offsets/.debug_str_offsets.dwo
A skeleton compilation unit may contain the DW_AT_str_offsets_base attribute
that points to the first string offset of the CU contribution to the
.debug_str_offsets. At the same time, when we use split dwarf,
the corresponding split debug unit also
may use DW_FORM_strx* forms pointing to its own .debug_str_offsets.dwo.
In that case, DWO does not contain DW_AT_str_offsets_base, but LLDB
still need to know and skip the .debug_str_offsets.dwo section header to
access the offsets.
The patch implements the support of DW_AT_str_offsets_base.
Differential revision: https://reviews.llvm.org/D54844
llvm-svn: 347859
Martin Storsjo [Thu, 29 Nov 2018 12:17:39 +0000 (12:17 +0000)]
[llvm-rc] Support EXSTYLE statement.
Patch by Jacek Caban!
Differential Revision: https://reviews.llvm.org/D55020
llvm-svn: 347858
Andrea Di Biagio [Thu, 29 Nov 2018 12:15:56 +0000 (12:15 +0000)]
[llvm-mca][MC] Add the ability to declare which processor resources model load/store queues (PR36666).
This patch adds the ability to specify via tablegen which processor resources
are load/store queue resources.
A new tablegen class named MemoryQueue can be optionally used to mark resources
that model load/store queues. Information about the load/store queue is
collected at 'CodeGenSchedule' stage, and analyzed by the 'SubtargetEmitter' to
initialize two new fields in struct MCExtraProcessorInfo named `LoadQueueID` and
`StoreQueueID`. Those two fields are identifiers for buffered resources used to
describe the load queue and the store queue.
Field `BufferSize` is interpreted as the number of entries in the queue, while
the number of units is a throughput indicator (i.e. number of available pickers
for loads/stores).
At construction time, LSUnit in llvm-mca checks for the presence of extra
processor information (i.e. MCExtraProcessorInfo) in the scheduling model. If
that information is available, and fields LoadQueueID and StoreQueueID are set
to a value different than zero (i.e. the invalid processor resource index), then
LSUnit initializes its LoadQueue/StoreQueue based on the BufferSize value
declared by the two processor resources.
With this patch, we more accurately track dynamic dispatch stalls caused by the
lack of LS tokens (i.e. load/store queue full). This is also shown by the
differences in two BdVer2 tests. Stalls that were previously classified as
generic SCHEDULER FULL stalls, are not correctly classified either as "load
queue full" or "store queue full".
About the differences in the -scheduler-stats view: those differences are
expected, because entries in the load/store queue are not released at
instruction issue stage. Instead, those are released at instruction executed
stage. This is the main reason why for the modified tests, the load/store
queues gets full before PdEx is full.
Differential Revision: https://reviews.llvm.org/D54957
llvm-svn: 347857
Pavel Labath [Thu, 29 Nov 2018 11:53:12 +0000 (11:53 +0000)]
Fix windows build broken by r347846
The changed order of includes caused compile errors on MSVC due to
snprintf macro definition. snprintf should available since VS2015, and
the rest of the code seems to be able to use snprintf just fine without
this macro, so this removes it from the lldb driver as well.
llvm-svn: 347855
Peter Smith [Thu, 29 Nov 2018 11:18:07 +0000 (11:18 +0000)]
[LLD][ELF] Error if _GLOBAL_OFFSET_TABLE_ is defined in input objects
The _GLOBAL_OFFSET_TABLE_ is a linker defined symbol that is placed at
some location relative to the .got, .got.plt or .toc section. On some
targets such as Arm the correctness of some code sequences using a
relocation to _GLOBAL_OFFSET_TABLE_ depend on the value of the symbol
being in the linker defined place. Follow the ld.gold example and give
a multiple symbol definition error. The ld.bfd behaviour is to ignore the
definition in the input object and redefine it, which seems like it could
be more surprising.
fixes pr39587
Differential Revision: https://reviews.llvm.org/D54624
llvm-svn: 347854
Nicolai Haehnle [Thu, 29 Nov 2018 11:06:26 +0000 (11:06 +0000)]
AMDGPU/InsertWaitcnts: Remove the dependence on MachineLoopInfo
Summary:
MachineLoopInfo cannot be relied on for correctness, because it cannot
properly recognize loops in irreducible control flow which can be
introduced by late machine basic block optimization passes. See the new
test case for the reduced form of an example that occurred in practice.
Use a simple fixpoint iteration instead.
In order to facilitate this change, refactor WaitcntBrackets so that it
only tracks pending events and registers, rather than also maintaining
state that is relevant for the high-level algorithm. Various accessor
methods can be removed or made private as a consequence.
Affects (in radv):
- dEQP-VK.glsl.loops.special.{for,while}_uniform_iterations.select_iteration_count_{fragment,vertex}
Fixes: r345719 ("AMDGPU: Rewrite SILowerI1Copies to always stay on SALU")
Reviewers: msearles, rampitec, scott.linder, kanarayan
Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits, hakzsam
Differential Revision: https://reviews.llvm.org/D54231
llvm-svn: 347853
Nicolai Haehnle [Thu, 29 Nov 2018 11:06:21 +0000 (11:06 +0000)]
AMDGPU/InsertWaitcnt: Consistently use uint32_t for scores / time points
Summary:
There is one obsolete reference to using -1 as an indication of "unknown",
but this isn't actually used anywhere.
Using unsigned makes robust wrapping checks easier.
Reviewers: msearles, rampitec, scott.linder, kanarayan
Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, llvm-commits, tpr, t-tye, hakzsam
Differential Revision: https://reviews.llvm.org/D54230
llvm-svn: 347852
Nicolai Haehnle [Thu, 29 Nov 2018 11:06:18 +0000 (11:06 +0000)]
AMDGPU/InsertWaitcnt: Remove unused WaitAtBeginning
Reviewers: msearles, rampitec, scott.linder, kanarayan
Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits, hakzsam
Differential Revision: https://reviews.llvm.org/D54229
llvm-svn: 347851
Nicolai Haehnle [Thu, 29 Nov 2018 11:06:14 +0000 (11:06 +0000)]
AMDGPU/InsertWaitcnts: Simplify pending events tracking
Summary:
Instead of storing the "score" (last time point) of the various relevant
events, only store whether an event is pending or not.
This is sufficient, because whenever only one event of a count type is
pending, its last time point is naturally the upper bound of all time
points of this count type, and when multiple event types are pending,
the count type has gone out of order and an s_waitcnt to 0 is required
to clear any pending event type (and will then clear all pending event
types for that count type).
This also removes the special handling of GDS_GPR_LOCK and EXP_GPR_LOCK.
I do not understand what this special handling ever attempted to achieve.
It has existed ever since the original port from an internal code base,
so my best guess is that it solved a problem related to EXEC handling in
that internal code base.
Reviewers: msearles, rampitec, scott.linder, kanarayan
Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits, hakzsam
Differential Revision: https://reviews.llvm.org/D54228
llvm-svn: 347850
Nicolai Haehnle [Thu, 29 Nov 2018 11:06:11 +0000 (11:06 +0000)]
AMDGPU/InsertWaitcnts: Use foreach loops for inst and wait event types
Summary:
It hides the type casting ugliness, and I happened to have to add a new
such loop (in a later patch).
Reviewers: msearles, rampitec, scott.linder, kanarayan
Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits, hakzsam
Differential Revision: https://reviews.llvm.org/D54227
llvm-svn: 347849
Nicolai Haehnle [Thu, 29 Nov 2018 11:06:06 +0000 (11:06 +0000)]
AMDGPU/InsertWaitcnts: Untangle some semi-global state
Summary:
Reduce the statefulness of the algorithm in two ways:
1. More clearly split generateWaitcntInstBefore into two phases: the
first one which determines the required wait, if any, without changing
the ScoreBrackets, and the second one which actually inserts the wait
and updates the brackets.
2. Communicate pre-existing s_waitcnt instructions using an argument to
generateWaitcntInstBefore instead of through the ScoreBrackets.
To simplify these changes, a Waitcnt structure is introduced which carries
the counts of an s_waitcnt instruction in decoded form.
There are some functional changes:
1. The FIXME for the VCCZ bug workaround was implemented: we only wait for
SMEM instructions as required instead of waiting on all counters.
2. We now properly track pre-existing waitcnt's in all cases, which leads
to less conservative waitcnts being emitted in some cases.
s_load_dword ...
s_waitcnt lgkmcnt(0) <-- pre-existing wait count
ds_read_b32 v0, ...
ds_read_b32 v1, ...
s_waitcnt lgkmcnt(0) <-- this is too conservative
use(v0)
more code
use(v1)
This increases code size a bit, but the reduced latency should still be a
win in basically all cases. The worst code size regressions in my shader-db
are:
WORST REGRESSIONS - Code Size
Before After Delta Percentage
1724 1736 12 0.70 % shaders/private/f1-2015/1334.shader_test [0]
2276 2284 8 0.35 % shaders/private/f1-2015/1306.shader_test [0]
4632 4640 8 0.17 % shaders/private/ue4_elemental/62.shader_test [0]
2376 2384 8 0.34 % shaders/private/f1-2015/1308.shader_test [0]
3284 3292 8 0.24 % shaders/private/talos_principle/1955.shader_test [0]
Reviewers: msearles, rampitec, scott.linder, kanarayan
Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits, hakzsam
Differential Revision: https://reviews.llvm.org/D54226
llvm-svn: 347848
Martin Storsjo [Thu, 29 Nov 2018 10:58:15 +0000 (10:58 +0000)]
[CODE_OWNERS] Add myself as code owner for MinGW
llvm-svn: 347847
Pavel Labath [Thu, 29 Nov 2018 10:45:41 +0000 (10:45 +0000)]
Remove getopt includes from the driver
They are not needed now that we use LLVMOption for command-line parsing
thank you, Jonas). This also allows us to avoid linking of lldbHost
into the driver which was breaking liblldb encapsulation.
(Technically, there is still a lldb/Host/windows/windows.h include which
is needed on windows, but this is a header-only wrapper for <windows.h>,
so it is not necessary to link lldbHost for that. But ideally, that
should go away too.)
llvm-svn: 347846
Max Kazantsev [Thu, 29 Nov 2018 09:38:22 +0000 (09:38 +0000)]
[NFC] Add two XFAIL tests from PR39783
llvm-svn: 347845
Max Kazantsev [Thu, 29 Nov 2018 09:00:19 +0000 (09:00 +0000)]
Disable TermFolding in LoopSimplifyCFG until PR39783 is fixed
llvm-svn: 347844
Sam Parker [Thu, 29 Nov 2018 08:34:22 +0000 (08:34 +0000)]
[LoopStrengthReduce] ComplexityLimit as an option
Convert ComplexityLimit into a command line value.
Differential Revision: https://reviews.llvm.org/D54899
llvm-svn: 347843
George Rimar [Thu, 29 Nov 2018 08:16:07 +0000 (08:16 +0000)]
[LLDB] - Fix setting the breakpoints when -gsplit-dwarf and DWARF 5 were used for building the executable.
The issue happens because starting from DWARF v5
DW_AT_addr_base attribute should be used
instead of DW_AT_GNU_addr_base. LLDB does not do that and
we end up reading the .debug_addr header as section content
(as addresses) instead of skipping it and reading the real addresses.
Then LLDB is unable to match 2 similar locations and
thinks they are different.
Differential revision: https://reviews.llvm.org/D54751
llvm-svn: 347842
Craig Topper [Thu, 29 Nov 2018 07:27:38 +0000 (07:27 +0000)]
[Inliner] Modify the merging of min-legal-vector-width attribute to better handle when the caller or callee don't have the attribute.
Lack of an attribute means that the function hasn't been checked for what vector width it requires. So if the caller or the callee doesn't have the attribute we should make sure the combined function after inlining does not have the attribute.
If the caller already doesn't have the attribute we can just avoid adding it. Otherwise if the callee doesn't have the attribute just remove the caller's attribute.
llvm-svn: 347841
Craig Topper [Thu, 29 Nov 2018 07:02:47 +0000 (07:02 +0000)]
[Inliner] Add test for merging of min-legal-vector-width function attribute.
This should have been added in r337844, but apparently was I failed to 'git add' the file.
llvm-svn: 347840
Serguei Katkov [Thu, 29 Nov 2018 06:45:18 +0000 (06:45 +0000)]
[CGP] Improve compile time for complex addressing mode
This is a fix for PR39625 with improvement the compile time
by reducing the number of intermediate Phi nodes created.
Reviewers: john.brawn, reames
Reviewed By: john.brawn
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D54932
llvm-svn: 347839
Juergen Ributzka [Thu, 29 Nov 2018 06:32:49 +0000 (06:32 +0000)]
Revert "[TextAPI] Fix a memory leak in the TBD reader."
llvm-svn: 347838
Juergen Ributzka [Thu, 29 Nov 2018 06:16:33 +0000 (06:16 +0000)]
[TextAPI] Fix a memory leak in the TBD reader.
This fixes an issue where we were leaking the YAML document if there was a
parsing error.
llvm-svn: 347837
Juergen Ributzka [Thu, 29 Nov 2018 05:56:03 +0000 (05:56 +0000)]
[TextAPI] Switch back to a custom Platform enum.
Moving to PlatformType from BinaryFormat had some UB fallout when handing
unknown platforms or malformed input files.
This should fix the sanitizer bots.
llvm-svn: 347836
Craig Topper [Thu, 29 Nov 2018 05:56:03 +0000 (05:56 +0000)]
[X86] Correct comment. NFC
llvm-svn: 347835
Kristina Brooks [Thu, 29 Nov 2018 03:49:14 +0000 (03:49 +0000)]
Add Hurd target to Clang driver (2/2)
This adds Hurd toolchain support to Clang's driver in addition
to handling translating the triple from Hurd-compatible form to
the actual triple registered in LLVM.
(Phabricator was stripping the empty files from the patch so I
manually created them)
Patch by sthibaul (Samuel Thibault)
Differential Revision: https://reviews.llvm.org/D54379
llvm-svn: 347833
Kristina Brooks [Thu, 29 Nov 2018 03:23:01 +0000 (03:23 +0000)]
Add Hurd target to LLVMSupport (1/2)
Add the required target triples to LLVMSupport to support Hurd
in LLVM (formally `pc-hurd-gnu`).
Patch by sthibaul (Samuel Thibault)
Differential Revision: https://reviews.llvm.org/D54378
llvm-svn: 347832
Li Jia He [Thu, 29 Nov 2018 03:04:39 +0000 (03:04 +0000)]
[PowerPC] Fix a conversion is not considered when the ISD::BR_CC node making the instruction selection
Summary:
A signed comparison of i1 values produces the opposite result to an unsigned one if the condition code
includes less-than or greater-than. This is so because 1 is the most negative signed i1 number and the
most positive unsigned i1 number. The CR-logical operations used for such comparisons are non-commutative
so for signed comparisons vs. unsigned ones, the input operands just need to be swapped.
Reviewed By: steven.zhang
Differential Revision: https://reviews.llvm.org/D54825
llvm-svn: 347831
Sam Clegg [Thu, 29 Nov 2018 02:55:25 +0000 (02:55 +0000)]
[WebAssembly] Update docs
This is an reland of rL343155 which got reverted because
of a sphinx failure on the buildbot.
Differential Revision: https://reviews.llvm.org/D54982
llvm-svn: 347830
Li Jia He [Thu, 29 Nov 2018 02:51:03 +0000 (02:51 +0000)]
[PowerPC] [NFC] Add test cases to the ISD::BR_CC node in the instruction selection
Add the following test case for the ISD::BR_CC node in the instruction selection
define i64 @testi64slt(i64 %c1, i64 %c2, i64 %c3, i64 %c4, i64 %a1, i64 %a2) #0 {
entry:
%cmp1 = icmp eq i64 %c3, %c4
%cmp3tmp = icmp eq i64 %c1, %c2
%cmp3 = icmp slt i1 %cmp3tmp, %cmp1
br i1 %cmp3, label %iftrue, label %iffalse
iftrue:
ret i64 %a1
iffalse:
ret i64 %a2
}
The data type i64 can be replaced by i32, i64, float, double
And condition codes can be replaced by: SETEQ, SETEN, SELT, SETLE, SETGT, SETGE,SETULT, SETULE, SSETGT, and SETUGE
Reviewed By: steven.zhang
Differential Revision: https://reviews.llvm.org/D54824
llvm-svn: 347828
Juergen Ributzka [Thu, 29 Nov 2018 02:28:58 +0000 (02:28 +0000)]
[TextAPI] TBD Reader/Writer (bot fixes: take 2)
Replace the tuple with a struct to work around an explicit constructor bug.
llvm-svn: 347827
Artur Pilipenko [Thu, 29 Nov 2018 02:15:35 +0000 (02:15 +0000)]
NFC. Use unsigned type for uses counter in CaptureTracking
llvm-svn: 347826
Eugene Zelenko [Thu, 29 Nov 2018 02:13:25 +0000 (02:13 +0000)]
[Documentation] Try to fix build failure in cppcoreguidelines-narrowing-conversions documentation
llvm-svn: 347825
Juergen Ributzka [Thu, 29 Nov 2018 01:55:57 +0000 (01:55 +0000)]
[TextAPI] TBD Reader/Writer (bot fixes)
Trying if switching from a vector to an array will appeas the bots.
llvm-svn: 347824
Juergen Ributzka [Thu, 29 Nov 2018 01:20:46 +0000 (01:20 +0000)]
[TextAPI] TBD Reader/Writer
Add basic infrastructure for reading and writting TBD files (version 1 - 3).
The TextAPI library is not used by anything yet (besides the unit tests). Tool
support will be added in a separate commit.
The TBD format is currently documented in the implementation file (TextStub.cpp).
https://reviews.llvm.org/D53945
Update: This contains changes to fix issues discovered by the bots:
- add parentheses to silence warnings.
- rename variables
- use PlatformType from BinaryFormat
llvm-svn: 347823
Jonas Devlieghere [Thu, 29 Nov 2018 00:22:28 +0000 (00:22 +0000)]
[driver] Fix --core/-c and add test
Because the optarg variable was shadowed we didn't notice we weren't
extracting the value from the option. This patch fixes that and renames
the variable to prevent this from happening in the future.
I also added two tests to check the error output for --core and --file
when the given value doesn't exist.
llvm-svn: 347821
Fangrui Song [Thu, 29 Nov 2018 00:17:00 +0000 (00:17 +0000)]
[ELF] --gdb-index: use lower_bound to compute relative CU index in the object file
Summary:
This reinstates what I originally intended to do in D54361.
It removes the assumption that .debug_gnu_pubnames has increasing CuOffset.
Now we do better than gold here: when .debug_gnu_pubnames contains
multiple sets, gold would think every set has the same CU index as the
first set (incorrect).
Reviewed By: ruiu
Reviewers: ruiu, dblaikie, espindola
Subscribers: emaste, arichardson, arphaman, llvm-commits
Differential Revision: https://reviews.llvm.org/D54483
llvm-svn: 347820
Sanjay Patel [Wed, 28 Nov 2018 22:51:04 +0000 (22:51 +0000)]
[x86] try select simplification for target-specific nodes
This failed to select (which might be a separate bug) in
X86ISelDAGToDAG because we try to create a select node
that can be simplified away after rL347227.
This change avoids the problem by simplifying the SHRUNKBLEND
node sooner. In the test case, we manage to realize that the
true/false values of the select (SHRUNKBLEND) are the same thing,
so it simplifies away completely.
llvm-svn: 347818