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Commit Graph

10945 Commits

Author SHA1 Message Date
Gabor Buella
2db44ec9ef [NFC][cmake] Build fix in tools/llvm-config/CMakeLists.txt
To avoid the following error message (using cmake version 3.13.4) :

```
CMake Error at tools/llvm-config/CMakeLists.txt:37 (string):
Syntax error in cmake code  when parsing string-std=[^ ]\+Invalid escape sequence \+
```

Reviewed By: mgorny

Differential Revision: https://reviews.llvm.org/D58619

llvm-svn: 369887
2019-08-26 09:42:30 +00:00
Benjamin Kramer
d474a8b811 [llvm-reduce] Silence -Wdocumentation
ReduceGlobalVars.cpp:17:6: warning: '@returns' command used in a comment that is attached to a function returning void

llvm-svn: 369848
2019-08-24 15:04:33 +00:00
Wei Mi
77474d769d [SampleFDO] Add ExtBinary format to support extension of binary profile.
This is a patch split from https://reviews.llvm.org/D66374. It tries to add
a new format of profile called ExtBinary. The format adds a section header
table to the profile and organize the profile in sections, so the future
extension like adding a new section or extending an existing section will be
easier while keeping backward compatiblity feasible.

Differential Revision: https://reviews.llvm.org/D66513

llvm-svn: 369798
2019-08-23 19:05:30 +00:00
Jordan Rupprecht
854147d0cc [llvm-objcopy] Strip debug sections when running with --strip-unneeded.
Summary:
GNU --strip-unneeded strips debugging sections as well. Do that for llvm-objcopy as well.

Additionally, add a test that verifies we keep the .gnu_debuglink section. This apparently was not always the case, and I'm not sure which commit fixed it, but there doesn't appear to be any test coverage to make sure we continue to do so.

This fixes PR41043.

Reviewers: jhenderson, jakehehrlich, espindola, alexshap

Subscribers: emaste, arichardson, MaskRay, abrachet, seiya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66623

llvm-svn: 369761
2019-08-23 14:28:58 +00:00
Benjamin Kramer
3b8f63172a Fight a bit against global initializers. NFC.
llvm-svn: 369695
2019-08-22 19:43:27 +00:00
Jordan Rupprecht
b1afc0dedc [llvm-objcopy][NFC] Refactor symbol/section matching
Summary:
The matchers for section/symbol related flags (e.g. `--keep-symbol=Name` or `--regex --keep-symbol=foo.*`) are currently just vectors that are matched linearlly. However, adding wildcard support would require negative matching too, e.g. a symbol should be removed if it matches a wildcard *but* doesn't match some other wildcard.

To make the next patch simpler, consolidate matching logic to a class defined in CopyConfig that takes care of matching.

Reviewers: jhenderson, seiya, MaskRay, espindola, alexshap

Reviewed By: jhenderson, MaskRay

Subscribers: emaste, arichardson, jakehehrlich, abrachet, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66432

llvm-svn: 369689
2019-08-22 19:17:50 +00:00
George Rimar
f05e457a4a [llvm-readobj] - Remove reportError(std::error_code EC, StringRef Input) helper.
We do not need it, std::error_code is used mostly for COFF and
this patch rewrites the calls to use a different overload.

Having reportError(std::error_code EC, ... is excessive by itself,
because API that use error codes actually needs refactoring to
use Error/Expected<> instead.

DIfferential revision: https://reviews.llvm.org/D66521

llvm-svn: 369630
2019-08-22 08:56:24 +00:00
George Rimar
79796ed688 [llvm-objdump] - Cleanup the error reporting.
The error reporting function are not consistent.

Before this change:

* They had inconsistent naming (e.g. 'error' vs 'report_error').
* Some of them reported the object name, others - dont.
* Some of them accepted the case when there was no error. (i.e. error code or Error had a success value).

This patch tries to cleanup it a bit.

It also renames report_error -> reportError, report_warning -> reportWarning
and removes a full stop from messages.

Differential revision: https://reviews.llvm.org/D66418

llvm-svn: 369515
2019-08-21 11:07:31 +00:00
Chris Bieneman
91c7b0fa0a Autogenerate the shebang lines for tools/opt-viewer
Summary:
Since these files depend on the built python modules, they need to use
the right python binary to run them. So use configure_file
to set the right shebang line.

Patch By: cbiesinger (Christian Biesinger)

Reviewers: chandlerc, beanz, anemet

Reviewed By: anemet

Subscribers: compnerd, JDevlieghere, mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65983

llvm-svn: 369486
2019-08-21 01:48:28 +00:00
Jinsong Ji
fa4131d59e [llvm-extract] Update the help message for group extraction feature
Summary:
https://reviews.llvm.org/D60973 exposed the group extraction feature of
the BlockExtractor to llvm-extract.
However, the help message was not updated, so users might not be able to
know how to use this feature without looking into history/commits.

This patch just update the help message to show how to use this group
extraction feature.

Reviewers: qcolombet, volkan

Reviewed By: qcolombet

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66438

llvm-svn: 369438
2019-08-20 20:45:16 +00:00
Fangrui Song
b0559dae5f [llvm-objcopy] Append '\n' to warning messages
Currently the warning message of `llvm-strip %t.o %t.o` does not include
the trailing newline. Fix this by appending a '\n'.

This is the only warning llvm-objcopy and llvm-strip can issue.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D66475

llvm-svn: 369391
2019-08-20 15:00:07 +00:00
George Rimar
816a7c4f33 [llvm-objdump] - Remove one of report_error functions and improve the error reporting.
One of the report_error functions was taking object::Archive::Child as an
argument. It feels excessive, this patch removes it and introduce a helper
function instead. Also I fixed a "TODO" in this patch what improved the message printed.

Differential revision: https://reviews.llvm.org/D66468

llvm-svn: 369382
2019-08-20 13:19:16 +00:00
Fangrui Song
b648113afa [llvm-readobj] Prepend argv[0] to error/warning messages
Summary:
Currently, we report:

    error: ...

Prepend argv[0] (tool name):

    llvm-readobj: error: ...

This is consistent with most GNU binutils/clang/lld, and gives a bit
more context in a long build log.

Reviewed By: grimar, jhenderson, rupprecht

Differential Revision: https://reviews.llvm.org/D66425

llvm-svn: 369377
2019-08-20 12:49:15 +00:00
Simon Pilgrim
e0da28268f Fix MSVC "result of 32-bit shift implicitly converted to 64 bits" warning. NFCI.
llvm-svn: 369366
2019-08-20 10:25:57 +00:00
Seiya Nuta
52efdb7adc [yaml2obj/obj2yaml][MachO] Allow setting custom section data
Reviewers: alexshap, jhenderson, rupprecht

Reviewed By: alexshap, jhenderson

Subscribers: abrachet, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65799

llvm-svn: 369348
2019-08-20 08:49:07 +00:00
Seiya Nuta
d6e74f9c7c [llvm-objcopy][MachO] Fix method names. NFC.
Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: alexshap, rupprecht

Subscribers: jakehehrlich, abrachet, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65540

llvm-svn: 369346
2019-08-20 08:36:47 +00:00
Hubert Tong
f12628ef2a [cmake] Link in LLVMPasses due to dependency by LLVMOrcJIT; NFC
Summary:
rL367756 (f5c40cb) increases the dependency of LLVMOrcJIT on LLVMPasses.
In particular, symbols defined in LLVMPasses that are referenced by the
destructor of `PassBuilder` are now referenced by LLVMOrcJIT through
`Speculation.cpp.o`.

We believe that referencing symbols defined in LLVMPasses in the
destructor of `PassBuilder` is valid, and that adding to the set of such
symbols is legitimate. To support such cases, this patch adds LLVMPasses
to the set of libraries being linked when linking in LLVMOrcJIT causes
such symbols from LLVMPasses to be referenced.

Reviewers: Whitney, anhtuyen, pree-jackie

Reviewed By: pree-jackie

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66441

llvm-svn: 369310
2019-08-19 23:12:48 +00:00
Seiya Nuta
aba5322f2a Recommit "[llvm-objcopy][MachO] Implement a layout algorithm for executables"
Summary: The layout algorithm for relocatable objects and for executable are somewhat different. This patch implements the latter one based on the algorithm in LLD (MachOFileLayout).

Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: alexshap

Subscribers: jakehehrlich, abrachet, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65539

llvm-svn: 369301
2019-08-19 21:12:02 +00:00
Seiya Nuta
c44c8db652 Recommit "[llvm-objcopy][MachO] Support load commands used in executables/shared libraries"
Summary:
This patch implements copying some load commands that appear in executables/shared libraries such as the indirect symbol table.

I don't add tests intentionally because this patch is incomplete: we need a layout algorithm for executables/shared libraries. I'll submit it as a separate patch with tests.

Reviewers: alexshap, rupprecht, jhenderson, compnerd

Reviewed By: alexshap

Subscribers: abrachet, mgorny, mgrang, MaskRay, mtrent, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63395

llvm-svn: 369298
2019-08-19 21:05:31 +00:00
George Rimar
71e346cddb [llvm-objdump] - Restore lost comment.
It was removed by mistake in r369263 (D66417).

llvm-svn: 369265
2019-08-19 14:35:08 +00:00
George Rimar
4603392e6d [Object/COFF.h] - Stop returning std::error_code in a few methods. NFCI.
There are 4 methods that return std::error_code now,
though they do not have to because they are always succeed.
I refactored them.

This allows to simplify the code in tools a bit.

llvm-svn: 369263
2019-08-19 14:32:23 +00:00
Fangrui Song
38bfad8962 [llvm-readobj] unwrapOrError: remove unnecessary llvm_unreachable after r369194
llvm-svn: 369254
2019-08-19 12:18:18 +00:00
Seiya Nuta
1d8663f8f0 Revert r369230 and r369231
Looks these commits break CI builds:

- http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-gn/builds/4159

This commit reverts r369230 and r369231 (git coommit: 4a198a7 and dee9546).

llvm-svn: 369234
2019-08-19 06:45:48 +00:00
Seiya Nuta
64fc8e3ce8 [llvm-objcopy][MachO] Implement a layout algorithm for executables
Summary: The layout algorithm for relocatable objects and for executable are somewhat different. This patch implements the latter one based on the algorithm in LLD (MachOFileLayout).

Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: alexshap

Subscribers: jakehehrlich, abrachet, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65539

llvm-svn: 369231
2019-08-19 05:41:33 +00:00
Seiya Nuta
1102d0b0b8 [llvm-objcopy][MachO] Support load commands used in executables/shared libraries
Summary:
This patch implements copying some load commands that appear in executables/shared libraries such as the indirect symbol table.

I don't add tests intentionally because this patch is incomplete: we need a layout algorithm for executables/shared libraries. I'll submit it as a separate patch with tests.

Reviewers: alexshap, rupprecht, jhenderson, compnerd

Reviewed By: alexshap

Subscribers: abrachet, mgorny, mgrang, MaskRay, mtrent, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63395

llvm-svn: 369230
2019-08-19 05:37:38 +00:00
George Rimar
09776aab5d Recommit r369190 "[llvm-readobj/llvm-readelf] - Improve/cleanup the error reporting API."
Fix: Add a `consumeError` call removed by mistake to 'printStackSize',
this should fix the "Expected<T> must be checked before access or destruction." reported by following bot:
http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/9743/steps/stage%201%20check/logs/stdio

Original commit message:
Currently we have the following functions for error reporting:

LLVM_ATTRIBUTE_NORETURN void reportError(Twine Msg);
void reportError(Error Err, StringRef Input); 
void reportWarning(Twine Msg);
void reportWarning(StringRef Input, Error Err);
void warn(llvm::Error Err);
void error(std::error_code EC);

Problems are: naming is inconsistent, arguments order is inconsistent,
some of the functions looks excessive.

After applying this patch we have:

void reportError(Error Err, StringRef Input); 
void reportError(std::error_code EC, StringRef Input);
void reportWarning(Error Err, StringRef Input);

I'd be happy to remove reportError(std::error_code EC, StringRef Input) too, but it
is used by COFF heavily.

Test cases were updated, they show an improvement introduced.

Differential revision: https://reviews.llvm.org/D66286

llvm-svn: 369194
2019-08-17 16:07:18 +00:00
George Rimar
602860ff2d Revert r369190, r369192 ([llvm-readobj/llvm-readelf] - Improve/cleanup the error reporting API.)
It caused multiple BB failtures:

http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/9743/steps/stage%201%20check/logs/stdio
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-sde-avx512-linux/builds/26042/steps/ninja%20check%201/logs/FAIL%3A%20LLVM%3A%3Astack-sizes.test

llvm-svn: 369193
2019-08-17 15:36:06 +00:00
George Rimar
b3d7c26aa4 [llvm-readobj] - An attemp to fix BB after r369191.
Few BB failed with the following error:

Command Output (stderr):
--
/home/buildbots/ppc64be-clang-lnt-test/clang-ppc64be-lnt/llvm/test/tools/llvm-readobj/stack-sizes.test:263:19: error: BADSECTION-OUT: expected string not found in input
# BADSECTION-OUT: 8 ?
                  ^
<stdin>:4:1: note: scanning from here

^

It doesn't reproduce on ubuntu/windows I have. Also, seems many of the bots
are happy too.

This slightly reorders the code to make fouts().flush() call earlier,
like it was before the r369191.

llvm-svn: 369192
2019-08-17 15:24:16 +00:00
George Rimar
bdd80e6afb [llvm-readobj/llvm-readelf] - Improve/cleanup the error reporting API.
urrently we have the following functions for error reporting:

--
LLVM_ATTRIBUTE_NORETURN void reportError(Twine Msg);
void reportError(Error Err, StringRef Input); 
void reportWarning(Twine Msg);
void reportWarning(StringRef Input, Error Err);
void warn(llvm::Error Err);
void error(std::error_code EC);
---

Problems are: naming is inconsistent, arguments order is inconsistent,
some of the functions looks excessive.

After applying this patch we have:

---
LLVM_ATTRIBUTE_NORETURN void reportError(Error Err, StringRef Input); 
LLVM_ATTRIBUTE_NORETURN void reportError(std::error_code EC, StringRef Input);
void reportWarning(Error Err, StringRef Input);
---

I'd be happy to remove reportError(std::error_code EC, StringRef Input) too, but it
is used by COFF heavily.

Test cases were updated, they show an improvement introduced.

Differential revision: https://reviews.llvm.org/D66286

llvm-svn: 369190
2019-08-17 14:36:40 +00:00
Petr Hosek
353f33d2f8 [llvm-readobj] Unwrap the value first to avoid the error
This addresses the issue introduced in r369169, we need to unwrap
the value first before we can check whether it's empty. This also
swaps the two branches to put the common path first which should
be NFC.

llvm-svn: 369177
2019-08-17 00:07:26 +00:00
Petr Hosek
e14c8f4aaf [llvm-readobj] Fallback to PT_NOTE if file doesn't have sections
This is useful when trying to read notes from stripped files and matches
the behavior of GNU readelf and eu-readelf.

Differential Revision: https://reviews.llvm.org/D66358

llvm-svn: 369169
2019-08-16 23:15:40 +00:00
Jordan Rose
91397b21be Fix llvm-config support for CMake build-mode-style builds
At some point we and/or CMake changed our build-mode-style builds from
  $LLVM_OBJ_ROOT/bin/$CMAKE_CFG_INTDIR/
to
  $LLVM_OBJ_ROOT/$CMAKE_CFG_INTDIR/bin/
which is way easier to use. But no one updated llvm-config.

https://reviews.llvm.org/D66326

llvm-svn: 369129
2019-08-16 17:17:45 +00:00
Diego Trevino Ferrer
fab54799c5 [Bugpoint redesign] Added Pass to Remove Global Variables
Summary:
This pass tries to remove Global Variables, as well as their derived uses. For example if a variable `@x` is used by `%call1` and `%call2`, both these uses and the definition of `@x` are deleted. Moreover if `%call1` or `%call2` are used elsewhere those uses are also deleted, and so on recursively.

I'm still uncertain if this pass should remove derived uses, I'm open to suggestions.

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64176

> llvm-svn: 368918

llvm-svn: 369061
2019-08-15 22:54:09 +00:00
Diego Trevino Ferrer
f3ddd9e99c [Bugpoint redesign] Output option can now print to STDOUT
Summary:
This also changes all the outs() statements to errs() so the output and
progress streams don't get mixed.

This has been added because D64176 had flaky tests, which I believe were because the reduced file was being catted into `FileCheck`, instead of being pass from STDOUT directly.

Reviewers: chandlerc, dblaikie, xbolva00

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66314

llvm-svn: 369060
2019-08-15 22:39:43 +00:00
JF Bastien
3fcfd786dd Fix nm on GCC 5.1 after the C++14 move
Summary:
As in D66306, fix the invocation of std::sort with std::function by not using
std::function, since it's easier to read and is broken in libstdc++ from GCC 5.1
(see https://gcc.gnu.org/PR65942).

Reviewers: thakis

Subscribers: jkorous, mgrang, dexonsmith, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66310

llvm-svn: 369045
2019-08-15 20:38:42 +00:00
Diego Trevino Ferrer
f97adebbab Revert [Bugpoint redesign] Added Pass to Remove Global Variables
This reverts r368918 because it was unstable!

It broke these builds:
 * http://lab.llvm.org:8011/builders/lld-x86_64-ubuntu-fast/builds/4649
 * http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29966
 * http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29964

But surprisingly this passed:
 * http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29965

llvm-svn: 369039
2019-08-15 19:08:15 +00:00
Jonas Devlieghere
2c693415b7 [llvm] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

llvm-svn: 369013
2019-08-15 15:54:37 +00:00
Benjamin Kramer
33caf354b4 Bump llvm-go to C++14
llvm-svn: 368989
2019-08-15 10:55:25 +00:00
Chris Jackson
6712b2c77c [llvm-objcopy] Allow 'protected' visibility to be set when using
add-symbol

Reviewers: Maskray, rupprecht

Differential Revision: https://reviews.llvm.org/D65891

llvm-svn: 368982
2019-08-15 09:45:09 +00:00
Seiya Nuta
4765c562bd [llvm-readobj][MachO] Fix section type printing
Summary:
Currently, llvm-readobj mistakenly decodes section type as section attribute.

This patch fixes the bug and affected tests.

Reviewers: JDevlieghere, jhenderson, rupprecht, alexshap, echristo

Reviewed By: jhenderson, rupprecht, alexshap, echristo

Subscribers: javed.absar, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66075

llvm-svn: 368974
2019-08-15 07:22:04 +00:00
Michael Pozulp
645a1056cd [llvm-objdump] Add warning messages if disassembly + source for problematic inputs
Summary: Addresses https://bugs.llvm.org/show_bug.cgi?id=41905

Reviewers: jhenderson, rupprecht, grimar

Reviewed By: jhenderson, grimar

Subscribers: RKSimon, MaskRay, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62462

llvm-svn: 368963
2019-08-15 05:15:22 +00:00
Michael Pozulp
40deb5ad19 [llvm-objcopy] Move duplicate tablegen from objcopy and strip into one file
Summary: This avoids maintaining the same options in two different places.

Reviewers: jhenderson, alexshap, rupprecht, MaskRay

Reviewed By: jhenderson, rupprecht, MaskRay

Subscribers: MaskRay, wolfgangp, jakehehrlich, abrachet, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65991

llvm-svn: 368961
2019-08-15 04:45:41 +00:00
Jonas Devlieghere
03772ca789 [NFC] Remove documentation comment to fix warning.
Remove the @return to fix the warning: '@returns' command used in a
comment that is attached to a function returning void [-Wdocumentation]

llvm-svn: 368957
2019-08-15 04:09:00 +00:00
Jonas Devlieghere
4388784b37 Revert "Expose TailCallKind via the LLVM C API"
This is failing on several build bots. Reverting as discussed in
https://reviews.llvm.org/D66061.

llvm-svn: 368953
2019-08-15 03:49:51 +00:00
Robert Widmann
f05ec670a4 Expose TailCallKind via the LLVM C API
Summary: This exposes `CallInst`'s tail call kind via new `LLVMGetTailCallKind` and `LLVMSetTailCallKind` functions. The motivation for this is to be able to see `musttail` for languages that require mandatory tail calls for correctness. Today only the weaker `LLVMSetTail` is exposed and there is no way to set `GuaranteedTailCallOpt` via the C API.

Reviewers: CodaFi, jyknight, deadalnix, rnk

Reviewed By: CodaFi

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66061

llvm-svn: 368945
2019-08-14 23:54:35 +00:00
Diego Trevino Ferrer
d97a9e1281 [Bugpoint redesign] Modified Functions pass to consider declarations
Summary: This modification was put in place so the `ReduceMetadata` pass doesn't have to consider debug functions

Reviewers: dblaikie

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66257

llvm-svn: 368934
2019-08-14 22:22:37 +00:00
Diego Trevino Ferrer
1b3c98cfd0 [Bugpoint redesign] Added Pass to Remove Global Variables
Summary:
This pass tries to remove Global Variables, as well as their derived uses. For example if a variable `@x` is used by `%call1` and `%call2`, both these uses and the definition of `@x` are deleted. Moreover if `%call1` or `%call2` are used elsewhere those uses are also deleted, and so on recursively.

I'm still uncertain if this pass should remove derived uses, I'm open to suggestions.

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64176

llvm-svn: 368918
2019-08-14 21:01:19 +00:00
Diego Trevino Ferrer
339b24fbc2 [Bugpoint redesign] Reduced scope of variables in Delta implementation
Summary: This diff also changed the check in `Delta.cpp` to verify interesting-ness, so it exits when the input isn't interesting

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66251

llvm-svn: 368915
2019-08-14 20:34:12 +00:00
George Rimar
21610566c8 Recommit r368812 "[llvm/Object] - Convert SectionRef::getName() to return Expected<>"
Changes: no changes. A fix for the clang code will be landed right on top.

Original commit message:

SectionRef::getName() returns std::error_code now.
Returning Expected<> instead has multiple benefits.

For example, it forces user to check the error returned.
Also Expected<> may keep a valuable string error message,
what is more useful than having a error code.
(Object\invalid.test was updated to show the new messages printed.)

This patch makes a change for all users to switch to Expected<> version.

Note: in a few places the error returned was ignored before my changes.
In such places I left them ignored. My intention was to convert the interface
used, and not to improve and/or the existent users in this patch.
(Though I think this is good idea for a follow-ups to revisit such places
and either remove consumeError calls or comment each of them to clarify why
it is OK to have them).

Differential revision: https://reviews.llvm.org/D66089

llvm-svn: 368826
2019-08-14 11:10:11 +00:00
George Rimar
f64562dc67 Revert r368812 "[llvm/Object] - Convert SectionRef::getName() to return Expected<>"
It broke clang BB: http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/16455

llvm-svn: 368813
2019-08-14 08:56:55 +00:00