[Support][Error] Add ErrorAsOutParameter constructor that takes an Error by ref.

ErrorAsOutParameter's Error* constructor supports cases where an Error might not
be passed in (because in the calling

[Support][Error] Add ErrorAsOutParameter constructor that takes an Error by ref.

ErrorAsOutParameter's Error* constructor supports cases where an Error might not
be passed in (because in the calling context it's known that this call won't
fail). Most clients always have an Error present however, and for them an Error&
overload is more convenient.

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[Object][NFC] Add extern template declarations needed by llvm-objdump (#109156)

These symbols are implicitly imported from the LLVM shared library by
llvm-objdump on ELF like platforms, but for win

[Object][NFC] Add extern template declarations needed by llvm-objdump (#109156)

These symbols are implicitly imported from the LLVM shared library by
llvm-objdump on ELF like platforms, but for windows they need to be
explicitly exported when LLVM is built as shared library.
I also add visibility macros for XCOFFObjectFile::getExceptionEntries
that can't automatically be added by clang tooling since it doesn't
store the source locations for explicit function template
instantiations.

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[NFC] Fix some typos (#98791)

[llvm-objdump] enable file-headers option of llvm-objdump for XCOFF object files (#96104)

the patch enable file-headers option of llvm-objdump for XCOFF object
files

[XCOFF] Support the subtype flag in DWARF section headers (#81667)

The section headers for XCOFF files have a subtype flag for Dwarf
sections. This PR updates obj2yaml, yaml2obj, and llvm-readobj s

[XCOFF] Support the subtype flag in DWARF section headers (#81667)

The section headers for XCOFF files have a subtype flag for Dwarf
sections. This PR updates obj2yaml, yaml2obj, and llvm-readobj so that
they recognize the subtype.

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[XCOFF] make related SD symbols as isFunction (#69553)

This will help tools like llvm-symbolizer recognizes more functions.

[XCOFF]refactor isFunction, NFC (#72232)

suggested in review of https://github.com/llvm/llvm-project/pull/69553

This is actually not an NFC as isFunction() does not return false for
some "invali

[XCOFF]refactor isFunction, NFC (#72232)

suggested in review of https://github.com/llvm/llvm-project/pull/69553

This is actually not an NFC as isFunction() does not return false for
some "invalid" object, instead it returns the errors to its caller. But
since there is no such invalid object in the LIT tests, so no case
changes.

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[XCOFF][OBJECT] get symbol size by calling XCOFF interfaces (#67304)

Computing the symbol size as the gap between sorted symbols are not
right for XCOFF.

For XCOFF, the size info is stored in au

[XCOFF][OBJECT] get symbol size by calling XCOFF interfaces (#67304)

Computing the symbol size as the gap between sorted symbols are not
right for XCOFF.

For XCOFF, the size info is stored in aux symbol and can be got from
existing XCOFF interface `getSymbolSize()`.
This patch changes XCOFFObjectFile to call this API to get sizes for
symbols.

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[PowerPC][MC] Set 'future' as default CPU type of XCOFF

For Power on Linux (both LE and BE), ELFObjectFile returns 'future' as
default CPU type if mcpu is not specified, so that all necessary
featur

[PowerPC][MC] Set 'future' as default CPU type of XCOFF

For Power on Linux (both LE and BE), ELFObjectFile returns 'future' as
default CPU type if mcpu is not specified, so that all necessary
features will be enabled in MC.

While for XCOFF, the default CPU type is always null, which makes tools
like llvm-objdump not able to recognize prefixed instructions, unless
specifying --mcpu=pwr10 or --mattr=+prefix-instrs manually.

Reviewed By: nemanjai

Differential Revision: https://reviews.llvm.org/D155089

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[AIX][XCOFF] print out the traceback info

Summary:

Adding a new option -traceback-table to print out the traceback info of xcoff ojbect file.

Reviewers: James Henderson, Fangrui Song, Stephen Pe

[AIX][XCOFF] print out the traceback info

Summary:

Adding a new option -traceback-table to print out the traceback info of xcoff ojbect file.

Reviewers: James Henderson, Fangrui Song, Stephen Peckham, Xing Xue

Differential Revision: https://reviews.llvm.org/D89049

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Move SubtargetFeature.h from MC to TargetParser

SubtargetFeature.h is currently part of MC while it doesn't depend on
anything in MC. Since some LLVM components might have the need to work
with targ

Move SubtargetFeature.h from MC to TargetParser

SubtargetFeature.h is currently part of MC while it doesn't depend on
anything in MC. Since some LLVM components might have the need to work
with target features without necessarily needing MC, it might be
worthwhile to move SubtargetFeature.h to a different location. This will
reduce the dependencies of said components.

Note that I choose TargetParser as the destination because that's where
Triple lives and SubtargetFeatures feels related to that.

This issues came up during a JITLink review (D149522). JITLink would
like to avoid a dependency on MC while still needing to store target
features.

Reviewed By: MaskRay, arsenm

Differential Revision: https://reviews.llvm.org/D150549

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[llvm-objdump][RISCV] Use new common method to parse ARCH RISCV attribute

Differential Revision: https://reviews.llvm.org/D139553

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

Use deduction guides instead of helper functions.

The only non-automatic changes have been:

1. ArrayRef(some_uint8_pointer, 0

Move from llvm::makeArrayRef to ArrayRef deduction guides - llvm/ part

Use deduction guides instead of helper functions.

The only non-automatic changes have been:

1. ArrayRef(some_uint8_pointer, 0) needs to be changed into ArrayRef(some_uint8_pointer, (size_t)0) to avoid an ambiguous call with ArrayRef((uint8_t*), (uint8_t*))
2. CVSymbol sym(makeArrayRef(symStorage)); needed to be rewritten as CVSymbol sym{ArrayRef(symStorage)}; otherwise the compiler is confused and thinks we have a (bad) function prototype. There was a few similar situation across the codebase.
3. ADL doesn't seem to work the same for deduction-guides and functions, so at some point the llvm namespace must be explicitly stated.
4. The "reference mode" of makeArrayRef(ArrayRef<T> &) that acts as no-op is not supported (a constructor cannot achieve that).

Per reviewers' comment, some useless makeArrayRef have been removed in the process.

This is a follow-up to https://reviews.llvm.org/D140896 that introduced
the deduction guides.

Differential Revision: https://reviews.llvm.org/D140955

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Revert D139098 "[Alignment] Use Align for ObjectFile::getSectionAlignment"

This breaks lld.

This reverts commit 10c47465e2505ddfee4e62a2ab2e535abea3ec56.

[Alignment] Use Align for ObjectFile::getSectionAlignment

Differential Revision: https://reviews.llvm.org/D139098

[XCOFF] llvm-readobj support display symbol table of loader section of xcoff object file.

Reviewers: James Henderson, Esme Yi

Differential Revision: https://reviews.llvm.org/D135887

Revert "[XCOFF] llvvm-readobj support display symbol table of loader section of xcoff object file."

Use of uninitialized value.

This reverts commit 037f5c283a2278ef156189be48db0738323206bd.

[XCOFF] llvvm-readobj support display symbol table of loader section of xcoff object file.

Reviewers: James Henderson, Esme Yi

Differential Revision: https://reviews.llvm.org/D135887

[Object] Fix a warning

This patch fixes:

llvm/lib/Object/XCOFFObjectFile.cpp:1001:20: warning: suggest
parentheses around ‘&&’ within ‘||’ [-Wparentheses]

Refactor XCOFFObjectFile::getImportFileTable.

Summary:

1. Refactor with XCOFFObjectFile::getImportFileTable with function getSectionFileOffsetToRawData instead of getLoaderSectionAddress

2. De

Refactor XCOFFObjectFile::getImportFileTable.

Summary:

1. Refactor with XCOFFObjectFile::getImportFileTable with function getSectionFileOffsetToRawData instead of getLoaderSectionAddress

2. Delete the function getLoaderSectionAddress.

Reviewers: James Henderson,Esme Yi
Differential Revision: https://reviews.llvm.org/D134280

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fixed a compiler error as description in

https://lab.llvm.org/buildbot/#/builders/174/builds/13432

XCOFFObjectFile.cpp:805:12: error: reinterpret_cast from 'unsigned long' to 'uintptr_t' (aka 'unsi

fixed a compiler error as description in

https://lab.llvm.org/buildbot/#/builders/174/builds/13432

XCOFFObjectFile.cpp:805:12: error: reinterpret_cast from 'unsigned long' to 'uintptr_t' (aka 'unsigned int') is not allowed
return reinterpret_cast<uintptr_t>(0ul);

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fixed a compiler error as description in
https://lab.llvm.org/buildbot/#/builders/216/builds/9977

XCOFFOtFile.cpp: error C3487: 'unsigned long': all return expressions must deduce to the same type:

fixed a compiler error as description in
https://lab.llvm.org/buildbot/#/builders/216/builds/9977

XCOFFOtFile.cpp: error C3487: 'unsigned long': all return expressions must deduce to the same type: previously it was 'uintptr_t'

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Fix MSVC warning "all return expressions must deduce to the same type"

[AIX] llvm-readobj support a new option --exception-section for xcoff object file.

Summary:

llvm-readobj support a new option --exception-section for xcoff object file.

https://www.ibm.com/docs/en

[AIX] llvm-readobj support a new option --exception-section for xcoff object file.

Summary:

llvm-readobj support a new option --exception-section for xcoff object file.

https://www.ibm.com/docs/en/aix/7.2?topic=formats-xcoff-object-file-format#XCOFF__iua3i23ajbau

Reviewers: James Henderson,Paul Scoropan

Differential Revision: https://reviews.llvm.org/D133030

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[llvm] Don't use Optional::getValue (NFC)