6094 Commits

Author SHA1 Message Date
Xing GUO
5d597e20df [DebugInfo][unittest] Use YAML to generate the .debug_loclists section.
DWARFYAML supports generating the .debug_loclists section. We can use it
to simplify tests.

Reviewed By: jhenderson, grimar

Differential Revision: https://reviews.llvm.org/D85179
2020-08-04 16:37:51 +08:00
Hiroshi Yamauchi
f78f509c75 [PGO] Extend the value profile buckets for mem op sizes.
Extend the memop value profile buckets to be more flexible (could accommodate a
mix of individual values and ranges) and to cover more value ranges (from 11 to
22 buckets).

Disabled behind a flag (to be enabled separately) and the existing code to be
removed later.

Differential Revision: https://reviews.llvm.org/D81682
2020-08-03 11:04:32 -07:00
Kevin P. Neal
d535a91d13 [FPEnv] IRBuilder fails to add strictfp attribute
The strictfp attribute is required on all function calls in a function
that is itself marked with the strictfp attribute. The IRBuilder knows
this and has a method for adding the attribute to function call instructions.

If a function being called has the strictfp attribute itself then the
IRBuilder will refuse to add the attribute to the calling instruction
despite being asked to add it. Eliminate this error.

Differential Revision: https://reviews.llvm.org/D84878
2020-08-03 13:25:24 -04:00
Mircea Trofin
4b1b109c51 [llvm] Add a parser from JSON to TensorSpec
A JSON->TensorSpec utility we will use subsequently to specify
additional outputs needed for certain training scenarios.

Differential Revision: https://reviews.llvm.org/D84976
2020-08-03 09:49:31 -07:00
Matt Arsenault
1782fbbc69 GlobalISel: Reimplement moreElementsVectorDst
Use pad with undef and unmerge with unused results. This is annoyingly
similar to several other places in LegalizerHelper, but they're all
slightly different.
2020-08-03 09:03:48 -04:00
Simon Pilgrim
e202236721 [IR] Add IRBuilderBase::CreateVectorSplat(ElementCount EC) variant
As discussed on D81500, this adds a more general ElementCount variant of the build helper and converts the (non-scalable) unsigned NumElts variant to use it internally.
2020-08-02 16:55:38 +01:00
Kazu Hirata
60434989e5 Use llvm::is_contained where appropriate (NFC)
Use llvm::is_contained where appropriate (NFC)

Reviewed By: kazu

Differential Revision: https://reviews.llvm.org/D85083
2020-08-01 21:51:06 -07:00
Fangrui Song
c068e9c8c1 [Support][CommandLine] Delete unused llvm:🆑:ParseEnvrironmentOptions
The function was added in 2003. It is not used and can be emulated with ParseCommandLineOptions.
2020-07-31 10:48:09 -07:00
Nikita Popov
94f8120cb9 [ConstantRange] Support abs with poison flag
This just adds the ConstantRange support, including exhaustive
testing. It's not wired up to the IR intrinsic flag yet.
2020-07-30 22:49:28 +02:00
Ettore Tiotto
36a4f10376 Fix computeHostNumPhysicalCores() for Linux on POWER and Linux on Z
ThinLTO is run using a single thread on Linux on Power. The
compute_thread_count() routine calls getHostNumPhysicalCores which
returns -1 by default, and so `MaxThreadCount is set to 1.

unsigned llvm::ThreadPoolStrategy::compute_thread_count() const {
    int MaxThreadCount = UseHyperThreads
          ? computeHostNumHardwareThreads()
          : sys::getHostNumPhysicalCores();
     if (MaxThreadCount <= 0)
        MaxThreadCount = 1;
   …
}
Fix: provide custom implementation of getHostNumPhysicalCores for
Linux on Power and Linux on Z.

Reviewed By: Kai, uweigand

Differential Revision: https://reviews.llvm.org/D84764
2020-07-30 18:05:36 +00:00
Johannes Doerfert
19756ef53a [OpenMP][IRBuilder] Support allocas in nested parallel regions
We need to keep track of the alloca insertion point (which we already
communicate via the callback to the user) as we place allocas as well.

Reviewed By: fghanim, SouraVX

Differential Revision: https://reviews.llvm.org/D82470
2020-07-30 10:19:39 -05:00
Simon Pilgrim
6316b0023e Attributor.h - remove unnecessary includes. NFCI.
Fix implicit cpp include dependencies.
2020-07-30 15:26:41 +01:00
Serge Pavlov
032ed39def [Support] Class to facilitate file locking
This change define RAII class `FileLocker` and methods `lock` and
`tryLockFor` of the class `raw_fd_stream` to facilitate using file locks.

Differential Revision: https://reviews.llvm.org/D79066
2020-07-30 13:42:20 +07:00
Mircea Trofin
71059257bd [llvm][NFC] TensorSpec abstraction for ML evaluator
Further abstracting the specification of a tensor, to more easily
support different types and shapes of tensor, and also to perform
initialization up-front, at TFModelEvaluator construction time.

Differential Revision: https://reviews.llvm.org/D84685
2020-07-29 16:29:21 -07:00
Florian Hahn
f75564ad4e Reland "[SCEVExpander] Add option to preserve LCSSA directly."
This reverts the revert commit dc2867576886247cbe351e7c63618c09ab6af808.

It includes a fix for Polly, which uses SCEVExpander on IR that is not
in LCSSA form. Set PreserveLCSSA = false in that case, to ensure we do
not introduce LCSSA phis where there were none before.
2020-07-29 20:41:53 +01:00
Matt Arsenault
bdad24c2cc GlobalISel: Fix insert point in CSEMIRBuilder unit test
This was using invalid MIR for the test instructions. The test add was
the first instruction in the block, before the trunc inputs or copies
from physical registers which I assume was not intended.
2020-07-29 15:08:42 -04:00
Florian Hahn
dc28675768 Revert "[SCEVExpander] Add option to preserve LCSSA directly."
This reverts commit 99166fd4fb422351f131fb1265cb85d5f6c5b8da, because it
breaks the polly builders.

polly/test/Isl/CodeGen/invariant_load_escaping_second_scop.ll fails
because a apparently unnecessary LCSSA phi node is introduced.

Make the bots green again, while I take a closer look.
2020-07-29 19:19:04 +01:00
Yuanfang Chen
5cf0c2e67b [NewPM][PassInstrument] Add a new kind of before-pass callback that only get called if the pass is not skipped
TODO
 * PrintIRInstrumentation and TimePassesHandler would be using this new callback.
 * "Running pass" logging will also be moved to use this callback.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D84772
2020-07-29 08:26:36 -07:00
Johannes Doerfert
ee05167cc4 [OpenMP] Allow traits for the OpenMP context selector isa
It was unclear what `isa` was supposed to mean so we did not provide any
traits for this context selector. With this patch we will allow *any*
string or identifier. We use the target attribute and target info to
determine if the trait matches. In other words, we will check if the
provided value is a target feature that is available (at the call site).

Fixes PR46338

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D83281
2020-07-29 10:22:27 -05:00
Florian Hahn
99166fd4fb [SCEVExpander] Add option to preserve LCSSA directly.
This patch teaches SCEVExpander to directly preserve LCSSA.

As it is currently, SCEV does not look through PHI nodes in loops,
as it might break LCSSA form. Once SCEVExpander can preserve
LCSSA form, it should be safe for SCEV to look through PHIs.

To preserve LCSSA form, this patch uses formLCSSAForInstructions
on operands of newly created instructions, if the definition is inside
a different loop than the new instruction.

The final value we return from expandCodeFor may also need LCSSA
phis, depending on the insert point. As no user for it exists there yet,
create a temporary instruction at the insert point, which can be passed
to formLCSSAForInstructions. This temporary instruction is removed
after LCSSA construction.

Reviewed By: mkazantsev

Differential Revision: https://reviews.llvm.org/D71538
2020-07-29 15:07:37 +01:00
Victor Campos
d1a3396bfb [Driver][ARM] Disable unsupported features when nofp arch extension is used
A list of target features is disabled when there is no hardware
floating-point support. This is the case when one of the following
options is passed to clang:

 - -mfloat-abi=soft
 - -mfpu=none

This option list is missing, however, the extension "+nofp" that can be
specified in -march flags, such as "-march=armv8-a+nofp".

This patch also disables unsupported target features when nofp is passed
to -march.

Differential Revision: https://reviews.llvm.org/D82948
2020-07-29 14:13:22 +01:00
Chuanqi Xu
dd4106d22e [NFC] Edit the comment in User::replaceUsesOfWith 2020-07-29 10:02:04 +08:00
Joel E. Denny
9f86b8ec41 [FileCheck] Report captured variables
Report captured variables in input dumps and traces.  For example:

```
$ cat check
CHECK: hello [[WHAT:[a-z]+]]
CHECK: goodbye [[WHAT]]

$ FileCheck -dump-input=always -vv check < input |& tail -8
<<<<<<
           1: hello world
check:1'0     ^~~~~~~~~~~
check:1'1           ^~~~~ captured var "WHAT"
           2: goodbye world
check:2'0     ^~~~~~~~~~~~~
check:2'1                   with "WHAT" equal to "world"
>>>>>>

$ FileCheck -dump-input=never -vv check < input
check2:1:8: remark: CHECK: expected string found in input
CHECK: hello [[WHAT:[a-z]+]]
       ^
<stdin>:1:1: note: found here
hello world
^~~~~~~~~~~
<stdin>:1:7: note: captured var "WHAT"
hello world
      ^~~~~
check2:2:8: remark: CHECK: expected string found in input
CHECK: goodbye [[WHAT]]
       ^
<stdin>:2:1: note: found here
goodbye world
^~~~~~~~~~~~~
<stdin>:2:1: note: with "WHAT" equal to "world"
goodbye world
^
```

Reviewed By: thopre

Differential Revision: https://reviews.llvm.org/D83651
2020-07-28 19:15:18 -04:00
Jinsong Ji
d28f86723f Re-land "[PowerPC] Remove QPX/A2Q BGQ/BGP CNK support"
This reverts commit bf544fa1c3cb80f24d85e84559fb11193846259f.

Fixed the typo in PPCInstrInfo.cpp.
2020-07-28 14:00:11 +00:00
Serge Pavlov
536736995b [Support] Add file lock/unlock functions
This is recommit of f51bc4fb60fb, reverted in 8577595e03fa, because
the function `flock` is not available on Solaris. In this variant
`flock` was replaced with `fcntl`, which is a POSIX function.

New functions `lockFile`, `tryLockFile` and `unlockFile` implement
simple file locking. They lock or unlock entire file. This must be
enough to support simulataneous writes to log files in parallel builds.

Differential Revision: https://reviews.llvm.org/D78896
2020-07-28 16:44:23 +07:00
Jinsong Ji
bf544fa1c3 Revert "[PowerPC] Remove QPX/A2Q BGQ/BGP CNK support"
This reverts commit adffce71538e219aab4eeb024819baa7687262ff.

This is breaking test-suite, revert while investigation.
2020-07-27 21:07:00 +00:00
Jinsong Ji
adffce7153 [PowerPC] Remove QPX/A2Q BGQ/BGP CNK support
Per RFC http://lists.llvm.org/pipermail/llvm-dev/2020-April/141295.html
no one is making use of QPX/A2Q/BGQ/BGP CNK anymore.

This patch remove the support of QPX/A2Q in llvm, BGQ/BGP in clang,
CNK support in openmp/polly.

Reviewed By: hfinkel

Differential Revision: https://reviews.llvm.org/D83915
2020-07-27 19:24:39 +00:00
Logan Smith
a52aea0ba6 Use INTERFACE_COMPILE_OPTIONS to disable -Wsuggest-override for any target that links to gtest
This cleans up several CMakeLists.txt's where -Wno-suggest-override was manually specified. These test targets now inherit this flag from the gtest target.

Some unittests CMakeLists.txt's, in particular Flang and LLDB, are not touched by this patch. Flang manually adds the gtest sources itself in some configurations, rather than linking to LLVM's gtest target, so this fix would be insufficient to cover those cases. Similarly, LLDB has subdirectories that manually add the gtest headers to their include path without linking to the gtest target, so those subdirectories still need -Wno-suggest-override to be manually specified to compile without warnings.

Differential Revision: https://reviews.llvm.org/D84554
2020-07-27 08:37:01 -07:00
Luofan Chen
a7044edde7 [Attributor] Fix qualifier warning of the unittest
Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D84532
2020-07-27 22:28:39 +08:00
Sergey Dmitriev
bec77ece14 [CallGraph] Preserve call records vector when replacing call edge
Summary:
Try not to resize vector of call records in a call graph node when
replacing call edge. That would prevent invalidation of iterators
stored in the CG SCC pass manager's scc_iterator.

Reviewers: jdoerfert

Reviewed By: jdoerfert

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D84295
2020-07-27 06:02:55 -07:00
Nathan James
4363ea6105
Fix C2975 error under MSVC
Apparantly a constexpr value isn't a compile time constant under certain versions of MSVC.
2020-07-25 11:03:59 +01:00
Nathan James
6c25fc35e0
[ADT] Add a range-based version of std::move
Adds a range-based version of `std::move`, the version that moves a range, not the one that creates r-value references.

Reviewed By: dblaikie, gamesh411

Differential Revision: https://reviews.llvm.org/D83902
2020-07-25 10:37:34 +01:00
Simon Pilgrim
0128b9505c Revert rG5dd566b7c7b78bd- "PassManager.h - remove unnecessary Function.h/Module.h includes. NFCI."
This reverts commit 5dd566b7c7b78bd385418c72d63c79895be9ae97.

Causing some buildbot failures that I'm not seeing on MSVC builds.
2020-07-24 13:02:33 +01:00
Simon Pilgrim
5dd566b7c7 PassManager.h - remove unnecessary Function.h/Module.h includes. NFCI.
PassManager.h is one of the top headers in the ClangBuildAnalyzer frontend worst offenders list.

This exposes a large number of implicit dependencies on various forward declarations/includes in other headers that need addressing.
2020-07-24 12:40:50 +01:00
Petr Hosek
10b1b4a231 [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-07-23 23:05:36 -07:00
Petr Hosek
38c71b7c85 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit 1d09ecf36175f7910ffedd6d497c07b5c74c22fb since
it breaks sanitizer bots.
2020-07-23 15:12:42 -07:00
Petr Hosek
1d09ecf361 [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-07-23 14:47:25 -07:00
Tarindu Jayatilaka
06283661b3 Add new function properties to FunctionPropertiesAnalysis
Added  LoadInstCount, StoreInstCount, MaxLoopDepth, LoopCount

Reviewed By: jdoerfert, mtrofin

Differential Revision: https://reviews.llvm.org/D82283
2020-07-23 12:46:47 -07:00
Tarindu Jayatilaka
ee6f0e109c Add a Printer to the FunctionPropertiesAnalysis
A printer pass and a lit test case was added.

Reviewed By: mtrofin

Differential Revision: https://reviews.llvm.org/D82523
2020-07-23 11:57:11 -07:00
Tarindu Jayatilaka
2f56046d7c Refactor FunctionPropertiesAnalysis
this separates  `analyze` logic from  `FunctionPropertiesAnalysis`

Reviewed By: mtrofin

Differential Revision: https://reviews.llvm.org/D82521
2020-07-23 11:49:10 -07:00
Xing GUO
92874d2866 [DWARFYAML] Refactor emitDebugInfo() to make the length be inferred.
This patch refactors `emitDebugInfo()` to make the length field be
inferred from its content. Besides, the `Visitor` class is removed in
this patch. The original `Visitor` class helps us determine an
appropriate length and emit the .debug_info section. These two
processes can be merged into one process. Besides, the length field
should be inferred when it's missing rather than when it's zero.

Reviewed By: jhenderson, labath

Differential Revision: https://reviews.llvm.org/D84008
2020-07-23 23:00:19 +08:00
Serge Pavlov
dab898f9ab [Windows] Fix limit on command line size
This reapplies commit d4020ef7c474, reverted in ac0edc55887b because it
broke build of LLDB. This commit contains appropriate changes for LLDB.
The original commit message is below.

Documentation on CreateProcessW states that maximal size of command line
is 32767 characters including ternimation null character. In the
function llvm::sys::commandLineFitsWithinSystemLimits this limit was set
to 32768. As a result if command line was exactly 32768 characters long,
a response file was not created and CreateProcessW was called with
too long command line.

Differential Revision: https://reviews.llvm.org/D83772
2020-07-23 11:39:42 +07:00
Logan Smith
77e0e9e17d Reapply "Try enabling -Wsuggest-override again, using add_compile_options instead of add_compile_definitions for disabling it in unittests/ directories."
add_compile_options is more sensitive to its location in the file than add_definitions--it only takes effect for sources that are added after it. This updated patch ensures that the add_compile_options is done before adding any source files that depend on it.

Using add_definitions caused the flag to be passed to rc.exe on Windows and thus broke Windows builds.
2020-07-22 17:50:19 -07:00
Fangrui Song
27650ec554 Revert D81682 "[PGO] Extend the value profile buckets for mem op sizes."
This reverts commit 4a539faf74b9b4c25ee3b880e4007564bd5139b0.

There is a __llvm_profile_instrument_range related crash in PGO-instrumented clang:

```
(gdb) bt
llvm::ConstantRange const&, llvm::APInt const&, unsigned int, bool) ()
llvm::ScalarEvolution::getRangeForAffineAR(llvm::SCEV const*, llvm::SCEV
const*, llvm::SCEV const*, unsigned int) ()
```

(The body of __llvm_profile_instrument_range is inlined, so we can only find__llvm_profile_instrument_target in the trace)

```
 23│    0x000055555dba0961 <+65>:    nopw   %cs:0x0(%rax,%rax,1)
 24│    0x000055555dba096b <+75>:    nopl   0x0(%rax,%rax,1)
 25│    0x000055555dba0970 <+80>:    mov    %rsi,%rbx
 26│    0x000055555dba0973 <+83>:    mov    0x8(%rsi),%rsi  # %rsi=-1 -> SIGSEGV
 27│    0x000055555dba0977 <+87>:    cmp    %r15,(%rbx)
 28│    0x000055555dba097a <+90>:    je     0x55555dba0a76 <__llvm_profile_instrument_target+342>
```
2020-07-22 16:08:25 -07:00
Rahul Joshi
e6ea5b388b [LLVM] Update formatv() documentation to clarify no escape for }
- Update documentation to clarify that `}` does not need to be doubled up.
- Update `EscapedBrace` test case to test this behavior

Differential Revision: https://reviews.llvm.org/D83888
2020-07-22 15:30:40 -07:00
Logan Smith
97a0f80c46 Revert "Try enabling -Wsuggest-override again, using add_compile_options instead of add_compile_definitions for disabling it in unittests/ directories."
This reverts commit 388c9fb1af48b059d8b65cb2e002e0992d147aa5.
2020-07-22 15:07:01 -07:00
Logan Smith
388c9fb1af Try enabling -Wsuggest-override again, using add_compile_options instead of add_compile_definitions for disabling it in unittests/ directories.
Using add_compile_definitions caused the flag to be passed to rc.exe on Windows and thus broke Windows builds.
2020-07-22 14:19:34 -07:00
Hans Wennborg
3eec657825 Revert "Enable -Wsuggest-override in the LLVM build" and the follow-ups.
After lots of follow-up fixes, there are still problems, such as
-Wno-suggest-override getting passed to the Windows Resource Compiler
because it was added with add_definitions in the CMake file.

Rather than piling on another fix, let's revert so this can be re-landed
when there's a proper fix.

This reverts commit 21c0b4c1e8d6a171899b31d072a47dac27258fc5.
This reverts commit 81d68ad27b29b1e6bc93807c6e42b14e9a77eade.
This reverts commit a361aa5249856e333a373df90947dabf34cd6aab.
This reverts commit fa42b7cf2949802ff0b8a63a2e111a2a68711067.
This reverts commit 955f87f947fda3072a69b0b00ca83c1f6a0566f6.
This reverts commit 8b16e45f66e24e4c10e2cea1b70d2b85a7ce64d5.
This reverts commit 308a127a38d1111f3940420b98ff45fc1c17715f.
This reverts commit 274b6b0c7a8b584662595762eaeff57d61c6807f.
This reverts commit 1c7037a2a5576d0bb083db10ad947a8308e61f65.
2020-07-22 20:23:58 +02:00
Tarindu Jayatilaka
418121c30a Reapply "Rename InlineFeatureAnalysis to FunctionPropertiesAnalysis"
(This reverts commit a5e0194709c40212694370e0ea789a1ca14548b5, and
corrects author).

Rename the pass to be able to extend it to function properties other than inliner features.

    Reviewed By: mtrofin

    Differential Revision: https://reviews.llvm.org/D82044
2020-07-22 10:07:35 -07:00
Mircea Trofin
a5e0194709 Revert "Rename InlineFeatureAnalysis to FunctionPropertiesAnalysis"
This reverts commit 44a6bda19b40f2dfcbe92fc3d58bb6276c71ef78. I forgot
to correctly attibute it to tarinduj. Fixing and resubmitting.
2020-07-22 09:42:17 -07:00