Commit Graph

9254 Commits

Author SHA1 Message Date
Daniel Cederman d72b9fd141 Implemented sane default for llvm-objdump's relocation Value format
Summary:
"Unknown" for platforms that were not manually added into the switch
did not make sense at all. Now it prints Target + addend for all
elf-machines that were not explicitly mentioned.

Addresses PR21059 and PR25124.

Original author: fedor.sergeev

Reviewers: jyknight, espindola, fedor.sergeev

Reviewed By: jyknight

Subscribers: eraman, dcederman, jfb, dschuff, aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D36464

llvm-svn: 333726
2018-06-01 05:31:58 +00:00
Heejin Ahn 99d60e0dab [WebAssembly] Add Wasm exception handling prepare pass
Summary:
This adds a pass that transforms a program to be prepared for Wasm
exception handling. This is using Windows EH instructions and based on
the previous Wasm EH proposal.
(https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md)

Reviewers: dschuff, majnemer

Subscribers: jfb, mgorny, sbc100, jgravelle-google, JDevlieghere, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D43746

llvm-svn: 333696
2018-05-31 22:02:34 +00:00
Alexander Shaposhnikov ecc84834b7 [llvm-strip] Add -o option to llvm-strip
This diff implements the option -o 
for specifying a file to write the output to.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D47505

llvm-svn: 333693
2018-05-31 20:42:13 +00:00
Andrea Di Biagio 4037011404 [llvm-mca] Fixed a problem caused by an invalid use of a processor resource mask in the Scheduler.
The lambda functions used by method ResourceManager::mustIssueImmediately() was
incorrectly truncating masks of buffered processor resources to 32-bit quantities.
The invalid mask values were then used to access a map of processor
resource descriptors.

Fixes PR37643.

llvm-svn: 333692
2018-05-31 20:27:46 +00:00
Jonas Devlieghere 745918ff87 [ADT] Make escaping fn conform to coding guidelines
As noted by Adrian on llvm-commits, PrintHTMLEscaped and PrintEscaped in
StringExtras did not conform to the LLVM coding guidelines. This commit
rectifies that.

llvm-svn: 333669
2018-05-31 17:01:42 +00:00
Pavel Labath 59870af66f DWARFAcceleratorTable: fix equal_range iterators
Summary:
Both (Apple and DWARF5) implementations of the iterators had bugs which
resulted in crashes if one attempted to iterate through the accelerator
tables all the way.

For the Apple tables, the issue was that we did not clear the DataOffset
field when we reached the end, which made our iterator compare unequal
to the "end" iterator. For the Dwarf5 tables, the problem was that we
incremented the CurrentIndex pointer and then used the incremented
(possibly invalid) pointer to check whether we have reached the end of
the index list.

The reason these bugs went undetected is because their only user
(dwarfdump) only ever searched for the first match. Besides allowing us
to test this fix, changing llvm-dwarfdump --find to display all matches
seems like a good improvement (it makes the behavior consistent with the
--name option), so I change llvm-dwarfdump to do that.

The existing tests would be sufficient to test this fix with the new
llvm-dwarfdump behavior, but I add a special test that demonstrates that
the tool indeed displays multiple results. The find.test test needed to
be tweaked a bit as the tool now does not print the ".debug_info
contents" header (also consistent with how --name works).

Reviewers: JDevlieghere, aprantl, dblaikie

Subscribers: mgrang, llvm-commits

Differential Revision: https://reviews.llvm.org/D47543

llvm-svn: 333635
2018-05-31 08:47:00 +00:00
Roman Lebedev 71d4afb90a [llvm-exegesis][NFCI] Counter::Counter(): more useful msg on event open error
Summary:
I'm slowly looking into a new X86 scheduler model,
for AMD Bulldozer CPU, model 2 (bdver2, Piledriver).

And naturally, i have hit that assert :)
I happened to know what it meant, and how to fix it,
but that is not too common knowledge.

Reviewers: courbet, RKSimon

Reviewed By: courbet

Subscribers: tschuett, llvm-commits, craig.topper

Differential Revision: https://reviews.llvm.org/D47572

llvm-svn: 333632
2018-05-31 07:08:26 +00:00
Vedant Kumar e3c1fb8b12 [llvm-cov] Use the new PrintHTMLEscaped utility
This removes some duplicate logic to escape characters in HTML output.

llvm-svn: 333608
2018-05-30 23:35:14 +00:00
Peter Collingbourne 1651ac13be llvm-objcopy: Set sh_link to 0 on unrecognized symtab-linked sections.
Per discussion on the generic-abi mailing list:
https://groups.google.com/forum/#!topic/generic-abi/MPr8TVtnVn4

An object file manipulation tool must either write out a symbol
table with the same number of entries as the original symbol table
and in the same order, or if this is impossible, refuse to operate
on the object file if it has unrecognized sections that are linked
to the symtab section. However, existing tools (namely GNU strip,
GNU objcopy and ld.{bfd,gold,lld} -r) do not comply with this at
present: they change symbol table indexes and set sh_link to 0 on
the unrecognized symtab-linked sections.

We intend to use the latter as a (temporary) signal that a tool has
operated on a proposed new symtab-linked section and invalidated the
symbol table indexes. However, llvm-objcopy currently keeps sh_link
pointing to the new symtab section. This patch changes llvm-objcopy
to set sh_link to 0 to match the behaviour of the other tools.

Differential Revision: https://reviews.llvm.org/D47404

llvm-svn: 333581
2018-05-30 19:30:39 +00:00
Galina Kistanova df917811ca Reverted r333424 as it broke multiple build bots and left unfixed for a long time
llvm-svn: 333578
2018-05-30 18:51:08 +00:00
Jonas Devlieghere f4ce54a123 [dsymutil] Escape HTML special characters in plist.
When printing string in the Plist, we weren't escaping the characters
which lead to invalid XML. This patch adds the escape logic to
StringExtras.

rdar://39785334

llvm-svn: 333565
2018-05-30 17:47:11 +00:00
Lang Hames bd0cb787d0 [ORC] Update JITCompileCallbackManager to support multi-threaded code.
Previously JITCompileCallbackManager only supported single threaded code. This
patch embeds a VSO (see include/llvm/ExecutionEngine/Orc/Core.h) in the callback
manager. The VSO ensures that the compile callback is only executed once and that
the resulting address cached for use by subsequent re-entries.

llvm-svn: 333490
2018-05-30 01:57:45 +00:00
Alexander Ivchenko 6572425462 [llvm-readobj] Support GNU_PROPERTY_X86_FEATURE_1_AND notes in .note.gnu.property
This patch allows parsing GNU_PROPERTY_X86_FEATURE_1_AND
notes in .note.gnu.property sections. These notes
indicate that the object file is built to support Intel CET.

patch by mike.dvoretsky

Differential Revision: https://reviews.llvm.org/D47473

llvm-svn: 333424
2018-05-29 14:49:51 +00:00
Paul Semel cf51c80bf1 [llvm-objcopy] Add --keep-file-symbols option
This option prevent from removing file symbols while removing symbols.

Differential Revision: https://reviews.llvm.org/D46830

llvm-svn: 333339
2018-05-26 08:10:37 +00:00
Teresa Johnson 08d5b4ef0d [ThinLTO] Print module summary index to assembly
Summary:
Implements AsmWriter support for printing the module summary index to
assembly with the format discussed in the RFC "LLVM Assembly format for
ThinLTO Summary".

Implements just enough of the parsing support to recognize and ignore
the summary entries. As agreed in the RFC thread, this will be the
behavior when assembling the IR. A follow on change will implement
parsing/assembling of the summary entries for use by tools that
currently build the summary index from bitcode.

Reviewers: dexonsmith, pcc

Subscribers: inglorion, eraman, steven_wu, dblaikie, llvm-commits

Differential Revision: https://reviews.llvm.org/D46699

llvm-svn: 333335
2018-05-26 02:34:13 +00:00
Fangrui Song ffebfe10c1 [llvm-symbolizer] Simplify
llvm-svn: 333334
2018-05-26 02:29:14 +00:00
Matt Davis aada043fa9 [llvm-mca] Update the header's guard name. NFC.
This patch also places a comment at the end of the header guard.

llvm-svn: 333297
2018-05-25 18:45:43 +00:00
Matt Davis 2d1d859c50 [llvm-mca] Update DispatchStage header comment. NFC.
Updated the comment to be a wee bit more descriptive.

llvm-svn: 333296
2018-05-25 18:31:28 +00:00
Matt Davis 5b79ffc5bc [llvm-mca] Add the RetireStage.
Summary:
This class maintains the same logic as the original RetireControlUnit.

This is just an intermediate patch to make the RCU a Stage.  Future patches will remove the dependency on the DispatchStage, and then more properly populate the pre/execute/post Stage interface.  

Reviewers: andreadb, RKSimon, courbet

Reviewed By: andreadb, courbet

Subscribers: javed.absar, mgorny, tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D47244

llvm-svn: 333292
2018-05-25 18:00:25 +00:00
Paul Semel 99dda0bab8 [llvm-objcopy] Add --strip-unneeded option
Differential Revision: https://reviews.llvm.org/D46896

llvm-svn: 333267
2018-05-25 11:01:25 +00:00
Fangrui Song 3b7499d104 [llvm-symbolizer] Simplify. NFC
llvm-svn: 333247
2018-05-25 00:11:15 +00:00
Vedant Kumar 4872535eb9 [Debugify] Set a DI version module flag for llc compatibility
Setting the "Debug Info Version" module flag makes it possible to pipe
synthetic debug info into llc, which is useful for testing backends.

llvm-svn: 333237
2018-05-24 23:00:23 +00:00
Vedant Kumar b70e35686b [Debugify] Avoid printing unnecessary square braces, NFC
llvm-svn: 333236
2018-05-24 23:00:22 +00:00
Andrea Di Biagio 0af811519a [llvm-mca] Fix a rounding problem in SummaryView.cpp exposed by r333204.
Before printing the block reciprocal throughput, ensure that the floating point
number is always rounded the same way on every target.
No functional change intended.

llvm-svn: 333210
2018-05-24 17:22:14 +00:00
Clement Courbet ae8ae5dc78 [llvm-exegesis] Analysis: Show value extents.
Summary: Screenshot attached in phabricator.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D47318

llvm-svn: 333181
2018-05-24 12:41:02 +00:00
Jonas Devlieghere 27126f5260 [Support] Add color cl category.
This commit adds a color category so tools can document this option and
enables it for dwarfdump and dsymuttil.

rdar://problem/40498996

llvm-svn: 333176
2018-05-24 11:36:57 +00:00
Clement Courbet b1f1b50da9 [llvm-exegesis] Analysis: show debug string instead of raw key if provided.
Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D47315

llvm-svn: 333175
2018-05-24 11:26:00 +00:00
Clement Courbet 2637e5f828 [llvm-exegesis] Show sched class details in analysis.
Summary: And update docs.

Reviewers: gchatelet

Subscribers: tschuett, craig.topper, RKSimon, llvm-commits

Differential Revision: https://reviews.llvm.org/D47254

llvm-svn: 333169
2018-05-24 10:47:05 +00:00
Alexander Shaposhnikov c7277e6e2b [llvm-strip] Minor fix of the usage of TableGen
This is a small follow-up to the revisions r333117 and r331663.

1. Avoid the name conflicts of the generated variables for prefixes.
2. Apply clang-format -i -style=llvm to llvm-objcopy.cpp once again.
3. Add a test for the flag with double dash.

Test plan: make check-all

llvm-svn: 333120
2018-05-23 20:39:52 +00:00
Alexander Shaposhnikov 35bee3e06b [llvm-strip] Expose --keep-symbol option
Expose --keep-symbol option in llvm-strip.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D47222

llvm-svn: 333117
2018-05-23 19:44:19 +00:00
Matt Davis 6172c74696 [llvm-mca] Fix header comments. NFC.
llvm-svn: 333096
2018-05-23 16:15:06 +00:00
Andrea Di Biagio 3fc20c9c7f [llvm-mca] Print the "Block RThroughput" in the SummaryView.
This patch implements the "block reciprocal throughput" computation in the
SummaryView.

The block reciprocal throughput is computed as the MAX of:
  - NumMicroOps / DispatchWidth
  - Resource Cycles / #Units   (for every resource consumed).

The block throughput is bounded from above by the hardware dispatch throughput.
That is because the DispatchWidth is an upper bound on how many opcodes can be part
of a single dispatch group.

The block throughput is also limited by the amount of hardware parallelism. The
number of available resource units affects how the resource pressure is
distributed, and also how many blocks can be delivered every cycle.

llvm-svn: 333095
2018-05-23 15:59:27 +00:00
Max Moroz 5b1083d76f [Coverage] Update CSS to make HTML reports copy-paste friendly.
Summary:
This minor change allows to copy snippets from HTML reports so they
will be pasted in the following format:
%LineNumber%\t%HitCount%\t%CodeLine%

rather then being split onto multiple lines. To see this in action, try copy
pasting from https://chromium-coverage.appspot.com/reports/560344/linux/chromium/src/third_party/zlib/compress.c.html

Requested in https://bugs.chromium.org/p/chromium/issues/detail?id=845571

Reviewers: vsk

Reviewed By: vsk

Subscribers: llvm-commits, morehouse, kcc

Differential Revision: https://reviews.llvm.org/D47231

llvm-svn: 333034
2018-05-22 22:40:14 +00:00
Matt Davis bd12532300 [llvm-mca] Move DispatchStage::cycleEvent to preExecute. NFC.
Summary:
This is an intermediate change, it moves the non-notification logic from
Backend::notifyCycleBegin to runCycle().
    
Once the scheduler becomes part of the Execution stage
the explicit call to Scheduler::cycleEvent will disappear.
    
The logic for Dispatch::cycleEvent() can be in
the preExecute phase, which this patch addresses.


Reviewers: andreadb, RKSimon, courbet

Reviewed By: andreadb

Subscribers: tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D47213

llvm-svn: 333029
2018-05-22 20:51:58 +00:00
Alexander Shaposhnikov 6e7814c484 [llvm-objcopy] Fix the behavior of --strip-* and --keep-symbol
If one runs llvm-objcopy --strip-all --keep-symbol foo
and the symbol table indeed contains the symbol "foo"
then it should not be removed.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D47052

llvm-svn: 333008
2018-05-22 18:24:07 +00:00
Clement Courbet 17d3c257b9 [llvm-exegesis] Analysis output uses HTML.
Summary: This makes the report much more readable.

Reviewers: gchatelet

Subscribers: tschuett, mgrang, craig.topper, RKSimon, llvm-commits

Differential Revision: https://reviews.llvm.org/D47189

llvm-svn: 332979
2018-05-22 13:31:29 +00:00
Paul Semel 31a212d694 Revert "[llvm-objcopy] Add --strip-unneeded option"
There is a use after free I didn't see. Need to investigate.

This reverts commit f7624abeb1f0d012309baf2e78cf2499fbfe5e5f.

llvm-svn: 332925
2018-05-22 01:04:36 +00:00
Paul Semel 040df77ed6 [llvm-objcopy] Add --strip-unneeded option
This option removes symbols that are not needed by relocations.

Differential Revision: https://reviews.llvm.org/D46896

llvm-svn: 332915
2018-05-21 22:50:32 +00:00
Peter Collingbourne c5a9765cea LTO: Replace split dwarf implementation that uses objcopy with one that uses direct emission.
Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47091

llvm-svn: 332884
2018-05-21 20:26:49 +00:00
Peter Collingbourne 9a45114b3c CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output.
Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47089

llvm-svn: 332881
2018-05-21 20:16:41 +00:00
Peter Collingbourne 63062d9d0f MC: Introduce an ELF dwo object writer and teach llvm-mc about it.
Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47051

llvm-svn: 332875
2018-05-21 19:44:54 +00:00
Peter Collingbourne f17b149d8c MC: Change object writers to use endian::Writer. NFCI.
Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47040

llvm-svn: 332861
2018-05-21 18:17:42 +00:00
Peter Collingbourne 147db3e628 MC: Change MCAssembler::writeSectionData and writeFragmentPadding to take a raw_ostream. NFCI.
Also clean up a couple of hacks where we were writing the section
contents to another stream by setting the object writer's stream,
writing and setting it back.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47038

llvm-svn: 332858
2018-05-21 18:11:35 +00:00
Andrea Di Biagio cb1ed400a4 [llvm-mca] Removed an empty line generated by the timeline view. NFC.
Also, regenerate all tests.

llvm-svn: 332853
2018-05-21 17:11:56 +00:00
Robert Widmann 38fa750b7a [LLVM-C] Add DIBuilder Bindings For ObjC Classes
Summary: Add LLVMDIBuilderCreateObjCIVar, LLVMDIBuilderCreateObjCProperty, and LLVMDIBuilderCreateInheritance to allow declaring metadata for Objective-C class hierarchies and their associated properties and instance variables.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: harlanhaskins, llvm-commits

Differential Revision: https://reviews.llvm.org/D47123

llvm-svn: 332850
2018-05-21 16:27:35 +00:00
James Henderson 004b729ed1 [DWARF] Refactor callback usage for .debug_line error handling
Change the "recoverable" error callback to take an Error instaed of a
string.

Reviewed by: JDevlieghere

Differential Revision: https://reviews.llvm.org/D46831

llvm-svn: 332845
2018-05-21 15:30:54 +00:00
Robert Widmann 360d6e35e6 [LLVM-C] Improve Bindings For Aliases
Summary: Add wrappers for a module's alias iterators and a getter and setter for the aliasee value.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits, harlanhaskins

Differential Revision: https://reviews.llvm.org/D46808

llvm-svn: 332826
2018-05-20 23:49:08 +00:00
Robert Widmann 025c78f5d7 [LLVM-C] Use Length-Providing Value Name Getters and Setters
Summary:
- Provide LLVMGetValueName2 and LLVMSetValueName2 that return and take the length of the provided C string respectively
- Deprecate LLVMGetValueName and LLVMSetValueName

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits, harlanhaskins

Differential Revision: https://reviews.llvm.org/D46890

llvm-svn: 332810
2018-05-19 15:08:36 +00:00
Peter Collingbourne e3f652973e Support: Simplify endian stream interface. NFCI.
Provide some free functions to reduce verbosity of endian-writing
a single value, and replace the endianness template parameter with
a field.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47032

llvm-svn: 332757
2018-05-18 19:46:24 +00:00
Peter Collingbourne f7b81db715 MC: Change the streamer ctors to take an object writer instead of a stream. NFCI.
The idea is that a client that wants split dwarf would create a
specific kind of object writer that creates two files, and use it to
create the streamer.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47050

llvm-svn: 332749
2018-05-18 18:26:45 +00:00