Commit Graph

320302 Commits

Author SHA1 Message Date
Adrian Prantl 559c6e17cd Make nrvo-string test more robust.
This is a follow-up to r364466, but better implemented. Original
commit message still applies:

    The breakpoint locations were in places where clang doesn't actually
    emit a source location for and depend on the debugger's ability to
    move the breakpoint forward onto a line that is already in the
    function epilogue. In my testing older versions of LLDB fail to do
    that, so I'm modifying the test to force a break-able location by
    calling a noinline function.

    <rdar://problem/52079841>

llvm-svn: 364589
2019-06-27 20:38:37 +00:00
Sanjay Patel 7ecf1ec49a [x86] remove whitespace; NFC
llvm-svn: 364588
2019-06-27 20:37:12 +00:00
Cameron McInally 22afca2ce0 [NFC][GVN] Pre-commit unary FNeg tests to fpmath.ll
llvm-svn: 364587
2019-06-27 20:33:44 +00:00
Louis Dionne 223df5b540 [libcxxabi] Use an explicit list to export symbols from the dylib
Reviewers: EricWF

Subscribers: mgorny, christof, jkorous, dexonsmith, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D63345

llvm-svn: 364586
2019-06-27 20:17:22 +00:00
Sanjay Patel a95ca2b5ff [x86] prevent crashing from select narrowing with AVX512
llvm-svn: 364585
2019-06-27 20:16:58 +00:00
Vitaly Buka 564b03729b [GN] Update build file
llvm-svn: 364583
2019-06-27 19:55:22 +00:00
Vitaly Buka f7a19f684b [GN] Set exit code to 1 if changes are needed
llvm-svn: 364582
2019-06-27 19:55:21 +00:00
Jinsong Ji c627aa2fa9 [PowerPC][NFC] Remove unused (and unsupported) fusion feature bits.
FeatureFusion bits was first introduced in
https://reviews.llvm.org/rL253724. for add/load integer fusion for P8.
The only use of `hasFusion` was https://reviews.llvm.org/rL255319.

However, this was removed later in https://reviews.llvm.org/rL280440.

So, there is NO any reference to fusion in code now.

Leaving it there is misleading and confusing, so remove it for now.
We can alwasy add back if we ever support fusion in the future.

llvm-svn: 364581
2019-06-27 19:35:11 +00:00
Johannes Doerfert 6ed459fd41 Use "willreturn" in isGuaranteedToTransferExecutionToSuccessor
The `willreturn` function attribute guarantees that a function call will
come back to the call site if the call is also known not to throw.
Therefore, this attribute can be used in
`isGuaranteedToTransferExecutionToSuccessor`.

Patch by Hideto Ueno (@uenoku)

Reviewers: jdoerfert, sstefan1

Reviewed By: jdoerfert

Subscribers: hiraditya, jfb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63372

llvm-svn: 364580
2019-06-27 19:29:48 +00:00
Philip Reames 1cf9e72cbc Update -analyze -scalar-evolution output for multiple exit loops w/computable exit values
The previous output was next to useless if *any* exit was not computable.  If we have more than one exit, show the exit count for each so that it's easier to see what's going from with SCEV analysis when debugging.

llvm-svn: 364579
2019-06-27 19:22:43 +00:00
Roman Lebedev bd34e50cf0 [NFC][CodeGen] Add negative test for X u% C == 0 fold (D63391)
The fold (D63391) uses multiplicativeInverse(),
but it is not guaranteed to always succeed,
and '100' appears to be one of the problematic values.

llvm-svn: 364578
2019-06-27 19:09:51 +00:00
Michael Liao c5486b23bc Correct the file path. NFC.
llvm-svn: 364577
2019-06-27 19:05:46 +00:00
Wouter van Oortmerssen bfd3f69480 [WebAssembly] AsmParser: better atomic inst detection
Summary:
Previously missed atomic.notify.

Fixes https://bugs.llvm.org/show_bug.cgi?id=40728

Reviewers: aheejin

Subscribers: sbc100, jgravelle-google, sunfish, jfb, llvm-commits, dschuff

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63747

llvm-svn: 364576
2019-06-27 18:58:26 +00:00
Alexey Bataev f288cf9dfa [OPENMP]Generate correctly implicit flags for mapped data.
Implicit flag must not be emitted for explicitly specified firstprivate
variables, but for implicitly captured sizes of the VLAs.

llvm-svn: 364575
2019-06-27 18:53:07 +00:00
Marshall Clow 954014a0fa Add a missing '__uncvref_t' to the SFINAE constraints for optional's assignment operator. Fixes PR38638. Thanks to Jonathan Wakely for the report
llvm-svn: 364574
2019-06-27 18:40:55 +00:00
Yuanfang Chen 2dcd2c2493 [llvm-objdump] Update the doc for --disassemble-functions.
Update the doc after llvm-svn: 364121 is landed.
With two more trivial fixes that are not related to
--disassemble-functions but still about llvm-objdump.

Reviewers: jhenderson, grimar, MaskRay, rupprecht, peter.smith

Reviewed by: jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D63787

llvm-svn: 364573
2019-06-27 18:39:34 +00:00
Alexey Bataev bb55ece269 [OPENMP][NVPTX]Relax flush directive.
Summary:
According to the OpenMP standard, flush  makes a thread’s temporary view of memory consistent with memory and enforces an order on the memory operations of the variables explicitly specified or implied.

According to the Cuda toolkit documentation (https://docs.nvidia.com/cuda/archive/8.0/cuda-c-programming-guide/index.html#memory-fence-functions), __threadfence() functions provides required functionality.

__threadfence_system() also provides required functionality, but it also
includes some extra functionality, like synchronization of page-locked
host memory, synchronization for the host, etc. It is not required per
the standard and we can use more relaxed version of memory fence
operation.

Reviewers: grokos, gtbercea, kkwli0

Subscribers: guansong, jfb, jdoerfert, openmp-commits, caomhin

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D62397

llvm-svn: 364572
2019-06-27 18:33:09 +00:00
Djordje Todorovic 774eabd097 Revert "[LiveDebugValues] Emit the debug entry values"
Appears that the 'test/DebugInfo/MIR/X86/dbginfo-entryvals.mir'
does not pass on Windows.

This reverts commit rL364553.

llvm-svn: 364571
2019-06-27 18:12:04 +00:00
Wouter van Oortmerssen 6b3f56b65f [WebAssembly] Fix p2align in assembler.
Summary:
- Match the syntax output by InstPrinter.
- Fix it always emitting 0 for align. Had to work around fact that
  opcode is not available for GetDefaultP2Align while parsing.
- Updated tests that were erroneously happy with a p2align=0

Fixes https://bugs.llvm.org/show_bug.cgi?id=40752

Reviewers: aheejin, sbc100

Subscribers: jgravelle-google, sunfish, jfb, llvm-commits, dschuff

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63633

llvm-svn: 364570
2019-06-27 18:11:15 +00:00
Simon Pilgrim 1fd1c60979 [X86] combineX86ShufflesRecursively - merge shuffles with more than 2 inputs
We already had the infrastructure for this, but were waiting for the fix for a number of regressions which were handled by the recent shuffle(extract_subvector(),extract_subvector()) -> extract_subvector(shuffle()) shuffle combines

llvm-svn: 364569
2019-06-27 17:30:51 +00:00
Roman Lebedev 0a2b7b79fa Revert "[CodeGen] [SelectionDAG] More efficient code for X % C == 0 (UREM case) (try 2)"
*Appears* to break test-suite on
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-sde-avx512-linux/builds/23790

FAIL: burg.execution_time
FAIL: spiff.execution_time
FAIL: employ.execution_time
FAIL: llu.execution_time
FAIL: gramschmidt.execution_time
FAIL: fdtd-apml.execution_time

This reverts commit r364563.

llvm-svn: 364568
2019-06-27 17:22:31 +00:00
Michael Liao a166b903d0 Fix lld build on Windows with MSVC due to C2461
- It seems the same name of class and one of its fields confuses MSVC,
  https://docs.microsoft.com/en-us/cpp/error-messages/compiler-errors-1/compiler-error-c2461?view=vs-2019
- Patch from Andryeyev, German <german.andryeyev@amd.com>

llvm-svn: 364567
2019-06-27 17:19:28 +00:00
Nicolai Haehnle 32ef9292be AMDGPU: Make fixing i1 copies robust against re-ordering
Summary:
The new test case led to incorrect code.

Change-Id: Ief48b227e97aa662dd3535c9bafb27d4a184efca

Reviewers: arsenm, david-salinas

Subscribers: kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63871

llvm-svn: 364566
2019-06-27 16:56:44 +00:00
David Green 152dd3b854 [ARM] Move low overhead loop codegen tests into a separate file. NFC
llvm-svn: 364565
2019-06-27 16:56:41 +00:00
Simon Pilgrim e9a2f4fe2c Use getConstantOperandAPInt instead of getConstantOperandVal for comparisons.
getConstantOperandAPInt avoids any large integer issues - these are unlikely but the fuzzers do like to mess around.....

llvm-svn: 364564
2019-06-27 16:46:00 +00:00
Roman Lebedev 0627b09863 [CodeGen] [SelectionDAG] More efficient code for X % C == 0 (UREM case) (try 2)
Summary:
I'm submitting a new revision since i don't understand how to reclaim/reopen/take over the existing one, D50222.
There is no such action in "Add Action" menu...
Original patch D50222 by @hermord (Dmytro Shynkevych)

This implements an optimization described in Hacker's Delight 10-17: when `C` is constant,
the result of `X % C == 0` can be computed more cheaply without actually calculating the remainder.
The motivation is discussed here: https://bugs.llvm.org/show_bug.cgi?id=35479.

Original patch author: @hermord (Dmytro Shynkevych)!

Notes:
- In principle, it's possible to also handle the `X % C1 == C2` case, as discussed on bugzilla.
  This seems to require an extra branch on overflow, so I refrained from implementing this for now.
- An explicit check for when the `REM` can be reduced to just its LHS is included:
  the `X % C` == 0 optimization breaks `test1` in `test/CodeGen/X86/jump_sign.ll` otherwise.
  I hadn't managed to find a better way to not generate worse output in this case.
- The `test/CodeGen/X86/jump_sign.ll` regresses, and is being fixed by a followup patch D63390.

Reviewers: RKSimon, craig.topper, spatel, hermord, xbolva00

Reviewed By: RKSimon, xbolva00

Subscribers: xbolva00, javed.absar, llvm-commits, hermord

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63391

llvm-svn: 364563
2019-06-27 16:45:42 +00:00
Adrian Prantl 3b4a667854 Add a sanity check to the domain socket tests.
rdar://problem/52062631

llvm-svn: 364562
2019-06-27 16:45:23 +00:00
Simon Pilgrim 74343eba37 [X86] getTargetVShiftByConstNode - reduce variable scope. NFCI.
Fixes cppcheck warning.

llvm-svn: 364561
2019-06-27 16:33:44 +00:00
Sam Tebbs 8747c5f482 [ARM] Fix formatting issue in ARMISelLowering.cpp
Fix a formatting error in ARMISelLowering.cpp::Expand64BitShift. My test
commit after receiving write access.

llvm-svn: 364560
2019-06-27 16:28:28 +00:00
Chris Jackson 41e20d2101 [llvm-nm] Fix for BZ41711 - Class character for a symbol with undefined
binding does not match class assigned by GNU nm

 Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=41711

 Differential Revision: https://reviews.llvm.org/D63340

llvm-svn: 364559
2019-06-27 16:27:53 +00:00
Tom Stellard c3ab38eaa9 Revert Add github lockdown app to auto-close pull requests.
This reverts r364358 (git commit b37f2f3391)

Moving this file to a separate repository https://github.com/llvm/.github,
 so it doesn't pollute the main tree.  It also did not appear to be working.

llvm-svn: 364558
2019-06-27 16:23:26 +00:00
Roland Froese 9f7f5858fe Recommit [PowerPC] Update P9 vector costs for insert/extract element
Recommit patch D60160 after regression fix patch D63463.

llvm-svn: 364557
2019-06-27 16:20:24 +00:00
Paul Robinson 1339f74b8a [debug-info] Make a couple of tests more robust.
llvm-svn: 364556
2019-06-27 15:53:07 +00:00
Johannes Doerfert 3b77583e95 [Attr] Add "willreturn" function attribute
This patch introduces a new function attribute, willreturn, to indicate
that a call of this function will either exhibit undefined behavior or
comes back and continues execution at a point in the existing call stack
that includes the current invocation.

This attribute guarantees that the function does not have any endless
loops, endless recursion, or terminating functions like abort or exit.

Patch by Hideto Ueno (@uenoku)

Reviewers: jdoerfert

Subscribers: mehdi_amini, hiraditya, steven_wu, dexonsmith, lebedev.ri, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62801

llvm-svn: 364555
2019-06-27 15:51:40 +00:00
Marshall Clow 7d8274d54d Followup to revision 364545: Turns out that clang issues different errors for C++11 vs c++2a, so I tweaked the 'expected-error' bits that I added to match either of them.
llvm-svn: 364554
2019-06-27 15:37:31 +00:00
Djordje Todorovic d6a46aff59 [LiveDebugValues] Emit the debug entry values
Emit replacements for clobbered parameters location if the parameter
has unmodified value throughout the funciton. This is basic scenario
where we can use the debug entry values.

([12/13] Introduce the debug entry values.)

Co-authored-by: Ananth Sowda <asowda@cisco.com>
Co-authored-by: Nikola Prica <nikola.prica@rt-rk.com>
Co-authored-by: Ivan Baev <ibaev@cisco.com>

Differential Revision: https://reviews.llvm.org/D58042

llvm-svn: 364553
2019-06-27 15:35:48 +00:00
James Henderson 92b32a9087 [docs][llvm-nm][llvm-objdump] Improve "See Also" section
The "See Also" section for llvm-nm didn't actually contain any links,
and the tools referred to didn't make much sense (referring to non-LLVM
tools, when we have equivalents, or tools that aren't really to do with
symbol dumping). llvm-objdump's didn't refer to llvm-readelf.

Reviewed by: grimar

Differential Revision: https://reviews.llvm.org/D63875

llvm-svn: 364552
2019-06-27 15:18:15 +00:00
Johan Vikstrom 6b8a2515ba [clangd] Emit semantic highlighting tokens when the main AST is built.
Differential Revision: https://reviews.llvm.org/D63821

llvm-svn: 364551
2019-06-27 15:13:03 +00:00
Tim Northover a4771e9dfd Bitcode: derive all types used from records instead of Values.
There is existing bitcode that we need to support where the structured nature
of pointer types is used to derive the result type of some operation. For
example a GEP's operation and result will be based on its input Type.

When pointers become opaque, the BitcodeReader will still have access to this
information because it's explicitly told how to construct the more complex
types used, but this information will not be attached to any Value that gets
looked up. This changes BitcodeReader so that in all places which use type
information in this manner, it's derived from a side-table rather than from the
Value in question.

llvm-svn: 364550
2019-06-27 14:46:51 +00:00
Djordje Todorovic 7a9ca67fd5 [LiveRangeEdit] Fix build failure caused by the rL364536
llvm-svn: 364549
2019-06-27 14:31:52 +00:00
Simon Pilgrim 83e1a1e79b [TargetLowering] SimplifyDemandedVectorElts - add shift/rotate support.
llvm-svn: 364548
2019-06-27 14:25:54 +00:00
Kostya Kortchinsky d44cb7a656 [scudo][standalone] Introduce the C & C++ wrappers [fixed]
Summary:
This is a redo of D63612.

Two problems came up on some bots:
- `__builtin_umull_overflow` was not declared. This is likely due to an
  older clang or gcc, so add a guard with `__has_builtin` and fallback
  to a division in the event the builtin doesn't exist;
- contradicting definition for `malloc`, etc. This is AFAIU due to the
  fact that we ended up transitively including `stdlib.h` in the `.inc`
  due to it being the flags parser header: so move the include to the
  cc instead.

This should fix the issues, but since those didn't come up in my local
tests it's mostly guesswork.

Rest is the same!

Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans

Reviewed By: morehouse, dyung, hans

Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D63831

llvm-svn: 364547
2019-06-27 14:23:26 +00:00
Sanjay Patel d0e098696f [InstCombine] remove 'tmp' names and regenerate checks; NFC
llvm-svn: 364546
2019-06-27 14:20:10 +00:00
Marshall Clow 9318430237 Provide hashers for string_view only if they are using the default char_traits. Seen on SO: test/std/strings/string.view/string.view.hash/char_type.hash.fail.cpp
llvm-svn: 364545
2019-06-27 14:18:32 +00:00
Jinsong Ji 157b073fa5 [PowerPC][HTM] Fix disassembling buffer overflow for tabortdc and others
This was reported in https://bugs.llvm.org/show_bug.cgi?id=41751
llvm-mc aborted when disassembling tabortdc.

This patch try to clean up TM related DAGs.

* Fixes the problem by remove explicit output of cr0, and put it as implicit def.
* Update int_ppc_tbegin pattern to accommodate the implicit def of cr0.
* Update the TCHECK operand and int_ppc_tcheck accordingly.
* Add some builtin test and disassembly tests.
* Remove unused CRRC0/crrc0

Differential Revision: https://reviews.llvm.org/D61935

llvm-svn: 364544
2019-06-27 14:11:31 +00:00
Hans Wennborg 408fc0849e Revert r363658 "[SVE][IR] Scalable Vector IR Type with pr42210 fix"
We saw a 70% ThinLTO link time increase in Chromium for Android, see
crbug.com/978817. Sounds like more of PR42210.

> Recommit of D32530 with a few small changes:
>   - Stopped recursively walking through aggregates in
>     the verifier, so that we don't impose too much
>     overhead on large modules under LTO (see PR42210).
>   - Changed tests to match; the errors are slightly
>     different since they only report the array or
>     struct that actually contains a scalable vector,
>     rather than all aggregates which contain one in
>     a nested member.
>   - Corrected an older comment
>
> Reviewers: thakis, rengolin, sdesmalen
>
> Reviewed By: sdesmalen
>
> Differential Revision: https://reviews.llvm.org/D63321

llvm-svn: 364543
2019-06-27 13:55:02 +00:00
Djordje Todorovic a0d45058eb [DWARF] Handle the DW_OP_entry_value operand
Add the IR and the AsmPrinter parts for handling of the DW_OP_entry_values
DWARF operation.

([11/13] Introduce the debug entry values.)

Co-authored-by: Ananth Sowda <asowda@cisco.com>
Co-authored-by: Nikola Prica <nikola.prica@rt-rk.com>
Co-authored-by: Ivan Baev <ibaev@cisco.com>

Differential Revision: https://reviews.llvm.org/D60866

llvm-svn: 364542
2019-06-27 13:52:34 +00:00
Simon Pilgrim c692a8dc51 [TargetLowering] SimplifyDemandedBits - use DemandedElts to better identify partial splat shift amounts
llvm-svn: 364541
2019-06-27 13:48:43 +00:00
Simon Atanasyan e9ec0b6f09 [mips] Mark pseudo select instructions by the `hasNoSchedulingInfo` tag
llvm-svn: 364540
2019-06-27 13:41:30 +00:00
Simon Atanasyan 7c83f0705a [mips] Add new items to the list of features unsupported by P5600
llvm-svn: 364539
2019-06-27 13:41:23 +00:00