Commit Graph

11159 Commits

Author SHA1 Message Date
Bjorn Pettersson 1f43ea41c3 Prune Pass.h include from DataLayout.h. NFCI
Summary:
Reduce include dependencies by no longer including Pass.h from
DataLayout.h. That include seemed irrelevant to DataLayout, as
well as being irrelevant to several users of DataLayout.

Reviewers: rnk

Reviewed By: rnk

Subscribers: mehdi_amini, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D69261

llvm-svn: 375436
2019-10-21 17:51:54 +00:00
George Rimar 2bf01dcbaa [llvm/Object] - Make ELFObjectFile::getRelocatedSection return Expected<section_iterator>
It returns just a section_iterator currently and have a report_fatal_error call inside.
This change adds a way to return errors and handle them on caller sides.

The patch also changes/improves current users and adds test cases.

Differential revision: https://reviews.llvm.org/D69167

llvm-svn: 375408
2019-10-21 11:06:38 +00:00
George Rimar 2779987d0e [yaml2obj][obj2yaml] - Do not create a symbol table by default.
This patch tries to resolve problems faced in D68943
and uses some of the code written by Konrad Wilhelm Kleine
in that patch.

Previously, yaml2obj tool always created a .symtab section.
This patch changes that. With it we only create it when
have a "Symbols:" tag in the YAML document or when
we need to create it because it is used by another section(s).

obj2yaml follows the new behavior and does not print "Symbols:"
anymore when there is no symbol table.

Differential revision: https://reviews.llvm.org/D69041

llvm-svn: 375361
2019-10-20 14:47:17 +00:00
Reid Kleckner 90c64a3456 Move endian constant from Host.h to SwapByteOrder.h, prune include
Works on this dependency chain:
  ArrayRef.h ->
  Hashing.h -> --CUT--
  Host.h ->
  StringMap.h / StringRef.h

ArrayRef is very popular, but Host.h is rarely needed. Move the
IsBigEndianHost constant to SwapByteOrder.h. Clients of that header are
more likely to need it.

llvm-svn: 375316
2019-10-19 00:48:11 +00:00
Reid Kleckner 1d7b41361f Prune two MachineInstr.h includes, fix up deps
MachineInstr.h included AliasAnalysis.h, which includes a world of IR
constructs mostly unneeded in CodeGen. Prune it. Same for
DebugInfoMetadata.h.

Noticed with -ftime-trace.

llvm-svn: 375311
2019-10-19 00:22:07 +00:00
Thomas Lively 393d0f799f [WebAssembly] Allow multivalue signatures in object files
Summary:
Also changes the wasm YAML format to reflect the possibility of having
multiple return types and to put the returns after the params for
consistency with the binary encoding.

Reviewers: aheejin, sbc100

Subscribers: dschuff, jgravelle-google, hiraditya, sunfish, arphaman, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69156

llvm-svn: 375283
2019-10-18 20:27:30 +00:00
Simon Pilgrim 3bd61b2655 Fix MSVC "not all control paths return a value" warning. NFCI.
llvm-svn: 375214
2019-10-18 09:59:40 +00:00
Simon Pilgrim da40d4e4e1 Fix MSVC "result of 32-bit shift implicitly converted to 64 bits" warnings. NFCI.
llvm-svn: 375213
2019-10-18 09:59:31 +00:00
Jordan Rupprecht 98a2ae7dad Reland [llvm-objdump] Use a counter for llvm-objdump -h instead of the section index.
This relands r374931 (reverted in r375088). It fixes 32-bit builds by using the right format string specifier for uint64_t (PRIu64) instead of `%d`.

Original description:

When listing the index in `llvm-objdump -h`, use a zero-based counter instead of the actual section index (e.g. shdr->sh_index for ELF).

While this is effectively a noop for now (except one unit test for XCOFF), the index values will change in a future patch that filters certain sections out (e.g. symbol tables). See D68669 for more context. Note: the test case in `test/tools/llvm-objdump/X86/section-index.s` already covers the case of incrementing the section index counter when sections are skipped.

Reviewers: grimar, jhenderson, espindola

Reviewed By: grimar

Subscribers: emaste, sbc100, arichardson, aheejin, arphaman, seiya, llvm-commits, MaskRay

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68848

llvm-svn: 375178
2019-10-17 21:55:43 +00:00
Jordan Rupprecht edeebad771 [llvm-objcopy] Add support for shell wildcards
Summary: GNU objcopy accepts the --wildcard flag to allow wildcard matching on symbol-related flags. (Note: it's implicitly true for section flags).

The basic syntax is to allow *, ?, \, and [] which work similarly to how they work in a shell. Additionally, starting a wildcard with ! causes that wildcard to prevent it from matching a flag.

Use an updated GlobPattern in libSupport to handle these patterns. It does not fully match the `fnmatch` used by GNU objcopy since named character classes (e.g. `[[:digit:]]`) are not supported, but this should support most existing use cases (mostly just `*` is what's used anyway).

Reviewers: jhenderson, MaskRay, evgeny777, espindola, alexshap

Reviewed By: MaskRay

Subscribers: nickdesaulniers, emaste, arichardson, hiraditya, jakehehrlich, abrachet, seiya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66613

llvm-svn: 375169
2019-10-17 20:51:00 +00:00
Fangrui Song a69cc92cb5 [llvm-ar] Implement the O modifier: display member offsets inside the archive
Since GNU ar 2.31, the 't' operation prints member offsets beside file
names if the 'O' modifier is specified. 'O' is ignored for thin
archives.

Reviewed By: gbreynoo, ruiu

Differential Revision: https://reviews.llvm.org/D69087

llvm-svn: 375106
2019-10-17 11:34:29 +00:00
Fangrui Song 9dce25a9fa [llvm-objcopy] --add-symbol: fix crash if SHT_SYMTAB does not exist
Exposed by D69041. If SHT_SYMTAB does not exist, ELFObjcopy.cpp:handleArgs will crash due
to a null pointer dereference.

  for (const NewSymbolInfo &SI : Config.ELF->SymbolsToAdd) {
    ...
    Obj.SymbolTable->addSymbol(

Fix this by creating .symtab and .strtab on demand in ELFBuilder<ELFT>::readSections,
if --add-symbol is specified.

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D69093

llvm-svn: 375105
2019-10-17 11:21:54 +00:00
George Rimar 9b8e5316f2 [llvm-readobj] - Refine the LLVM-style output to be consistent.
Our LLVM-style output was inconsistent.
This patch changes the output in the following way:

SHT_GNU_verdef { -> VersionDefinitions [
SHT_GNU_verneed { -> VersionRequirements [
Version symbols [ -> VersionSymbols [
EH_FRAME Header [ -> EHFrameHeader {

Differential revision: https://reviews.llvm.org/D68636

llvm-svn: 375095
2019-10-17 10:23:48 +00:00
Hans Wennborg 312c4a6e24 Revert r374931 "[llvm-objdump] Use a counter for llvm-objdump -h instead of the section index."
This broke llvm-objdump in 32-bit builds, see e.g.
http://lab.llvm.org:8011/builders/clang-cmake-armv7-quick/builds/10925

> Summary:
> When listing the index in `llvm-objdump -h`, use a zero-based counter instead of the actual section index (e.g. shdr->sh_index for ELF).
>
> While this is effectively a noop for now (except one unit test for XCOFF), the index values will change in a future patch that filters certain sections out (e.g. symbol tables). See D68669 for more context. Note: the test case in `test/tools/llvm-objdump/X86/section-index.s` already covers the case of incrementing the section index counter when sections are skipped.
>
> Reviewers: grimar, jhenderson, espindola
>
> Reviewed By: grimar
>
> Subscribers: emaste, sbc100, arichardson, aheejin, arphaman, seiya, llvm-commits, MaskRay
>
> Tags: #llvm
>
> Differential Revision: https://reviews.llvm.org/D68848

llvm-svn: 375088
2019-10-17 08:52:29 +00:00
Fangrui Song bb197dd52a [llvm-ar] Simplify and make two global variables static. NFC
llvm-svn: 375082
2019-10-17 06:15:34 +00:00
Jonas Devlieghere 8cdc842c51 [dsymutil] Print warning/error for unknown/missing arguments.
After changing dsymutil to use libOption, we lost error reporting for
missing required arguments (input files). Additionally, we stopped
complaining about unknown arguments. This patch fixes both and adds a
test.

llvm-svn: 375044
2019-10-16 21:48:41 +00:00
Jordan Rupprecht a86bd22515 [llvm-ar] Implement the V modifier as an alias for --version
Summary: Also update the help modifier (h) so that it works as a modifier and not just as a standalone `h`. For example, `llvm-ar h` prints the help message, but `llvm-ar xh` currently prints `unknown option h`.

Reviewers: MaskRay, gbreynoo

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69007

llvm-svn: 375028
2019-10-16 18:39:52 +00:00
Owen Reynolds 28a3b2aeb4 [llvm-ar] Make paths case insensitive when on windows
When on windows gnu-ar treats member names as case insensitive. This
commit implements the same behaviour.

Differential Revision: https://reviews.llvm.org/D68033

llvm-svn: 375002
2019-10-16 14:07:57 +00:00
Jonas Devlieghere 20c692a445 [dsymutil] Support and relocate base address selection entries for debug_loc
Since r374600 clang emits base address selection entries. Currently
dsymutil does not support these entries and incorrectly interprets them
as location list entries.

This patch adds support for base address selection entries in dsymutil
and makes sure they are relocated correctly.

Thanks to Dave for coming up with the test case!

Differential revision: https://reviews.llvm.org/D69005

llvm-svn: 374957
2019-10-15 23:43:37 +00:00
Digger Lin 34d4bff3d6 [XCOFF]implement parsing relocation information for 32-bit xcoff object file
Summary:
    Parsing the relocation entry information for 32-bit xcoff object file
including deal with the relocation overflow.

Reviewers: hubert.reinterpretcast, jasonliu, sfertile, xingxue.

Subscribers: hiraditya, rupprecht, seiya

Differential Revision: https://reviews.llvm.org/D67008

llvm-svn: 374946
2019-10-15 20:42:11 +00:00
Alexander Shaposhnikov 4f2f9c00b9 [llvm-lipo] Add missing cast
Add missing cast (to correctly sum 32-bit integers).

Test plan: make check-all

llvm-svn: 374945
2019-10-15 20:10:34 +00:00
Digger Lin 1875dcc478 [llvm-readobj][xcoff] implement parsing overflow section header.
SUMMARY:
in the xcoff, if the number of relocation entries or line number entries is
overflow(large than or equal 65535) , there will be overflow section for it.
The interpret of overflow section is different with generic section header,
the patch implement parsing the overflow section.

Reviewers: hubert.reinterpretcast,sfertile,jasonliu
Subscribers: rupprecht, seiya

Differential Revision: https://reviews.llvm.org/D68575

llvm-svn: 374941
2019-10-15 19:28:11 +00:00
Thomas Lively 2cb27072ce [WebAssembly] Allow multivalue types in block signature operands
Summary:
Renames `ExprType` to the more apt `BlockType` and adds a variant for
multivalue blocks. Currently non-void blocks are only generated at the
end of functions where the block return type needs to agree with the
function return type, and that remains true for multivalue
blocks. That invariant means that the actual signature does not need
to be stored in the block signature `MachineOperand` because it can be
inferred by `WebAssemblyMCInstLower` from the return type of the
parent function. `WebAssemblyMCInstLower` continues to lower block
signature operands to immediates when possible but lowers multivalue
signatures to function type symbols. The AsmParser and Disassembler
are updated to handle multivalue block types as well.

Reviewers: aheejin, dschuff, aardappel

Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68889

llvm-svn: 374933
2019-10-15 18:28:22 +00:00
Jordan Rupprecht eb501b1fc1 [llvm-objdump] Use a counter for llvm-objdump -h instead of the section index.
Summary:
When listing the index in `llvm-objdump -h`, use a zero-based counter instead of the actual section index (e.g. shdr->sh_index for ELF).

While this is effectively a noop for now (except one unit test for XCOFF), the index values will change in a future patch that filters certain sections out (e.g. symbol tables). See D68669 for more context. Note: the test case in `test/tools/llvm-objdump/X86/section-index.s` already covers the case of incrementing the section index counter when sections are skipped.

Reviewers: grimar, jhenderson, espindola

Reviewed By: grimar

Subscribers: emaste, sbc100, arichardson, aheejin, arphaman, seiya, llvm-commits, MaskRay

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68848

llvm-svn: 374931
2019-10-15 18:13:20 +00:00
Martin Storsjo da92ed8365 [Demangle] Add a few more options to the microsoft demangler
This corresponds to commonly used options to UnDecorateSymbolName
within llvm.

Add them as hidden options in llvm-undname. MS undname.exe takes
numeric flags, corresponding to the UNDNAME_* constants, but instead
of hardcoding in mappings for those numbers, just add textual
options instead, as it the use of them here is primarily intended
for testing.

Differential Revision: https://reviews.llvm.org/D68917

llvm-svn: 374865
2019-10-15 08:29:56 +00:00
Jordan Rupprecht c526ff8a62 [llvm-objdump] Adjust spacing and field width for --section-headers
Summary:
- Expand the "Name" column past 13 characters when any of the section names are longer. Current behavior is a staggard output instead of a nice table if a single name is longer.
- Only print the required number of hex chars for addresses (i.e. 8 characters for 32-bit, 16 characters for 64-bit)
- Fix trailing spaces

Reviewers: grimar, jhenderson, espindola

Reviewed By: grimar

Subscribers: emaste, sbc100, arichardson, aheejin, seiya, llvm-commits, MaskRay

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68730

llvm-svn: 374795
2019-10-14 17:47:17 +00:00
Jordan Rupprecht 1d32d8b176 Reapply: [llvm-size] Tidy up error messages (PR42970)
Clean up some formatting inconsistencies in the error messages and correctly exit with non-zero in all error cases.

Originally submitted as r374771 and then reverted as r374780, this patch fixes the libObject test case in Object/macho-invalid.test.

Patch by Alex Cameron

Differential Revision: https://reviews.llvm.org/D68906

llvm-svn: 374793
2019-10-14 17:29:15 +00:00
Nico Weber 961c34d5f4 Revert r374771 "[llvm-size] Tidy up error messages (PR42970)"
This reverts commit 83e52f5e11.

Makes Object/macho-invalid.test fail everywhere, e.g. here:
http://lab.llvm.org:8011/builders/llvm-hexagon-elf/builds/23669/steps/test-llvm/logs/FAIL%3A%20LLVM%3A%3Amacho-invalid.test

llvm-svn: 374780
2019-10-14 14:44:26 +00:00
Fangrui Song 83e52f5e11 [llvm-size] Tidy up error messages (PR42970)
Clean up some formatting inconsistencies in the error messages and correctly exit with non-zero in all error cases.

Differential Revision: https://reviews.llvm.org/D68906
Patch by Alex Cameron

llvm-svn: 374771
2019-10-14 12:51:47 +00:00
Alexander Shaposhnikov b42e679a4b [llvm-lipo] Pass ArrayRef by value.
Pass ArrayRef by value, fix formatting. NFC.

Test plan: make check-all

llvm-svn: 374637
2019-10-12 06:14:02 +00:00
Vitaly Buka ec6bfa81b7 Revert 374629 "[sancov] Accommodate sancov and coverage report server for use under Windows"
http://lab.llvm.org:8011/builders/clang-s390x-linux/builds/27650/steps/ninja%20check%201/logs/stdio
http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/31759
http://lab.llvm.org:8011/builders/clang-s390x-linux-lnt/builds/15095
http://lab.llvm.org:8011/builders/clang-ppc64be-linux-multistage/builds/21075
http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/31759

llvm-svn: 374636
2019-10-12 05:23:43 +00:00
Vitaly Buka 23aa2aec78 [sancov] Accommodate sancov and coverage report server for use under Windows
Summary:
This patch makes the following changes to SanCov and its complementary Python script in order to resolve issues pertaining to non-UNIX file paths in JSON symbolization information:
* Convert all paths to use forward slash.
* Update `coverage-report-server.py` to correctly handle paths to sources which contain spaces.
* Remove Linux platform restriction for all SanCov unit tests. All SanCov tests passed when ran on my local Windows machine.

Patch by Douglas Gliner.

Reviewers: kcc, filcab, phosek, morehouse, vitalybuka, metzman

Reviewed By: vitalybuka

Subscribers: vsk, Dor1s, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D51018

llvm-svn: 374629
2019-10-12 02:29:26 +00:00
Vitaly Buka e8a462a019 [sancov] Use LLVM Support library JSON writer in favor of individual implementation
Summary:
In this diff, I've replaced the individual implementation of `JSONWriter` with `json::OStream` provided by `llvm/Support/JSON.h`.

Important Note: The output format of the JSON is considerably different compared to the original implementation. Important differences include:
* New line for each entry in an array (should make diffs cleaner)
* No space between keys and colon in attributed object entries.
* Attributes with empty strings will now print the attribute name and a quote pair rather than excluding the attribute altogether

Examples of these differences can be seen in the changes to the sancov tests which compare the JSON output.

Patch by Douglas Gliner.

Reviewers: kcc, filcab, phosek, morehouse, vitalybuka, metzman

Subscribers: mehdi_amini, dexonsmith, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D68752

llvm-svn: 374628
2019-10-12 02:29:24 +00:00
Simon Atanasyan cf1ba238d4 [Mips][llvm-exegesis] Add a Mips target
The target does just enough to be able to run llvm-exegesis in latency
mode for at least some opcodes.

Patch by Miloš Stojanović.

Differential Revision: https://reviews.llvm.org/D68649

llvm-svn: 374590
2019-10-11 20:26:08 +00:00
George Rimar e6e26339ff [llvm-readobj] - Remove excessive fields when dumping "Version symbols".
This removes a few fields that are not useful:
"Section Name", "Address", "Offset" and "Link"
(they duplicated the information available under
the "Sections [" tag).

Differential revision: https://reviews.llvm.org/D68704

llvm-svn: 374541
2019-10-11 12:27:11 +00:00
Clement Courbet c8eb0547ef [llvm-exegesis] Show noise cluster in analysis output.
Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68780

llvm-svn: 374533
2019-10-11 11:33:18 +00:00
Jonas Devlieghere 644abcf09d [dsymutil] Move CommonSymbols.clear() in resetParserState.
This seems like a more natural place to clear the vector, especially
since this method is clearing other data structures as well.

llvm-svn: 374378
2019-10-10 16:37:38 +00:00
Roman Lebedev a5e65c1cf7 [MCA] Show aggregate over Average Wait times for the whole snippet (PR43219)
Summary:
As disscused in https://bugs.llvm.org/show_bug.cgi?id=43219,
i believe it may be somewhat useful to show //some// aggregates
over all the sea of statistics provided.

Example:
```
Average Wait times (based on the timeline view):
[0]: Executions
[1]: Average time spent waiting in a scheduler's queue
[2]: Average time spent waiting in a scheduler's queue while ready
[3]: Average time elapsed from WB until retire stage

      [0]    [1]    [2]    [3]
0.     3     1.0    1.0    4.7       vmulps     %xmm0, %xmm1, %xmm2
1.     3     2.7    0.0    2.3       vhaddps    %xmm2, %xmm2, %xmm3
2.     3     6.0    0.0    0.0       vhaddps    %xmm3, %xmm3, %xmm4
       3     3.2    0.3    2.3       <total>
```
I.e. we average the averages.

Reviewers: andreadb, mattd, RKSimon

Reviewed By: andreadb

Subscribers: gbedwell, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68714

llvm-svn: 374361
2019-10-10 14:46:21 +00:00
George Rimar 55f1be0996 [llvm-readelf] - Do not enter an infinite loop when printing histogram.
This is similar to D68086.
We are entering an infinite loop when dumping a histogram for a specially crafted
.hash section with a loop in a chain.

Differential revision: https://reviews.llvm.org/D68771

llvm-svn: 374344
2019-10-10 13:26:26 +00:00
Jason Liu 6453f700f2 [AIX][XCOFF][NFC] Change the SectionLen field name of CSect Auxiliary entry to SectionOrLength.
Summary:
According the the XCOFF document,
If
Then
XTY_SD
x_scnlen contains the csect length.
XTY_LD
x_scnlen contains the symbol table index of the containing csect.
XTY_CM
x_scnlen contains the csect length.
XTY_ER
x_scnlen contains 0.

Change the SectionLen member name to SectionOrLength is more reasonable.

Authored By: DiggerLin

Reviewed By: hubert.reinterpretcast

Differential Revision: https://reviews.llvm.org/D68650

llvm-svn: 374179
2019-10-09 16:19:39 +00:00
Jonas Devlieghere e7affcdbd2 Re-land "[dsymutil] Fix handling of common symbols in multiple object files."
The original patch got reverted because it hit a long-standing legacy
issue on Windows that prevents files from being named `com`. Thanks
Kristina & Jeremy for pointing this out.

llvm-svn: 374178
2019-10-09 16:19:13 +00:00
Clement Courbet 04a9a0eb0d [llvm-exegesis] Ensure that ExecutableFunction are aligned.
Summary: Experiments show that this is the alignment we get (for ELF+Linux), but let's ensure that we have it.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68703

llvm-svn: 374170
2019-10-09 14:25:08 +00:00
Clement Courbet 64a83bb253 [llvm-exegesis] Fix r374158
Some bots complain about missing 'class':

LlvmState.h:70:40: error: declaration of ‘std::unique_ptr<const llvm::TargetMachine> llvm::exegesis::LLVMState::TargetMachine’ [-fpermissive]
   std::unique_ptr<const TargetMachine> TargetMachine;

llvm-svn: 374162
2019-10-09 12:37:56 +00:00
Clement Courbet 50cdd56beb [llvm-exegesis][NFC] Remove extra `llvm::` qualifications.
Summary: Second patch: in the lib.

Reviewers: gchatelet

Subscribers: nemanjai, tschuett, MaskRay, mgrang, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68692

llvm-svn: 374158
2019-10-09 11:58:42 +00:00
Clement Courbet 66f05d7389 [llvm-exegesis] Add missing std::move in rL374146.
This was breaking some bots:

/home/buildbots/ppc64le-clang-lnt-test/clang-ppc64le-lnt/llvm/include/llvm/Support/Error.h:483:5:   required from ‘llvm::Expected<T>::Expected(OtherT&&, typename std::enable_if<std::is_convertible<_Rep2, _Rep>::value>::type*) [with OtherT = std::vector<llvm::exegesis::CodeTemplate>&; T = std::vector<llvm::exegesis::CodeTemplate>; typename std::enable_if<std::is_convertible<_Rep2, _Rep>::value>::type = void]’
/home/buildbots/ppc64le-clang-lnt-test/clang-ppc64le-lnt/llvm/tools/llvm-exegesis/lib/X86/Target.cpp:238:20:   required from here
/usr/include/c++/6/bits/stl_construct.h:75:7: error: use of deleted function ‘llvm::exegesis::CodeTemplate::CodeTemplate(const llvm::exegesis::CodeTemplate&)’
     { ::new(static_cast<void*>(__p)) _T1(std::forward<_Args>(__args)...); }
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

llvm-svn: 374149
2019-10-09 09:07:21 +00:00
Hans Wennborg 1e1e3ba252 Unify the two CRC implementations
David added the JamCRC implementation in r246590. More recently, Eugene
added a CRC-32 implementation in r357901, which falls back to zlib's
crc32 function if present.

These checksums are essentially the same, so having multiple
implementations seems unnecessary. This replaces the CRC-32
implementation with the simpler one from JamCRC, and implements the
JamCRC interface in terms of CRC-32 since this means it can use zlib's
implementation when available, saving a few bytes and potentially making
it faster.

JamCRC took an ArrayRef<char> argument, and CRC-32 took a StringRef.
This patch changes it to ArrayRef<uint8_t> which I think is the best
choice, and simplifies a few of the callers nicely.

Differential revision: https://reviews.llvm.org/D68570

llvm-svn: 374148
2019-10-09 09:06:30 +00:00
Clement Courbet f8d482c07b [llvm-exegesis][NFC] Fix rL374146.
Remove extra semicolon: Target.cpp:187:2: warning: extra ‘;’ [-Wpedantic]

llvm-svn: 374147
2019-10-09 09:03:42 +00:00
Clement Courbet c3a7fb7599 [llvm-exegesis] Explore LEA addressing modes.
Summary:
This will help for PR32326.

This shows the well-known issue with `RBP` and `R13` as base registers.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits, RKSimon, andreadb

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68646

llvm-svn: 374146
2019-10-09 08:49:13 +00:00
Jeremy Morse e9c8f6fea6 Revert r374139, "[dsymutil] Fix handling of common symbols in multiple object files."
The added test files ("com", "com1.o", "com2.o") are reserved names on
Windows, and makes 'git checkout' fail with a filesystem error.

llvm-svn: 374144
2019-10-09 08:27:48 +00:00
Jonas Devlieghere 4ac388f7ca [dsymutil] Fix handling of common symbols in multiple object files.
For common symbols the linker emits only a single symbol entry in the
debug map. This caused dsymutil to not relocate common symbols when
linking DWARF coming form object files that did not have this entry.
This patch fixes that by keeping track of common symbols in the object
files and synthesizing a debug map entry for them using the address from
the main binary.

Differential revision: https://reviews.llvm.org/D68680

llvm-svn: 374139
2019-10-09 04:16:18 +00:00