Update the MemoryBuffer API to use ErrorOr.

llvm-svn: 212405

This only needs a StringRef.

llvm-svn: 212401

SourceMgr: make valid buffer IDs start from one

Use 0 for the invalid buffer instead of -1/~0 and switch to unsigned
representation to enable more idiomatic usage.

Also introduce a trivial SourceMg

SourceMgr: make valid buffer IDs start from one

Use 0 for the invalid buffer instead of -1/~0 and switch to unsigned
representation to enable more idiomatic usage.

Also introduce a trivial SourceMgr::getMainFileID() instead of hard-coding 0/1
to identify the main file.

llvm-svn: 212398

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Simplify code a bit, no functionality change.

llvm-svn: 211985

Move -dwarf-version to an MC level command line option so it's
used by all of the MC level tools and codegen. Fix up all uses
in the compiler to use this and set it on the context accordingly.

llvm-

Move -dwarf-version to an MC level command line option so it's
used by all of the MC level tools and codegen. Fix up all uses
in the compiler to use this and set it on the context accordingly.

llvm-svn: 211257

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80-column fixups.

llvm-svn: 211255

Remove 'using std::error_code' from tools.

llvm-svn: 210876

Don't use 'using std::error_code' in include/llvm.

This should make sure that most new uses use the std prefix.

llvm-svn: 210835

llvm-mc: Add option for prefering hex format disassembly.

Previously there was a separate mode entirely (--hdis vs.
--disassemble). It makes a bit more sense for the immediate printing
style to be a

llvm-mc: Add option for prefering hex format disassembly.

Previously there was a separate mode entirely (--hdis vs.
--disassemble). It makes a bit more sense for the immediate printing
style to be a flag for --disassmeble rather than an entirely different
thing.

llvm-svn: 210700

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Move MCOptions that aren't shared between programs into their specific
program and have them initialize the MCOptions struct explicitly.

llvm-svn: 209321

This command line option is only used in one place. Move it there and
rename it to something more descriptive.

llvm-svn: 209263

Unify command line handling of MCTargetOptions and remove extra
options and code. No functional change.

llvm-svn: 208833

Remove the UseCFI option from createAsmStreamer.

We were already always passing true, this just removes the option.

llvm-svn: 208205

Record the DWARF version in MCContext

Record the DWARF version in MCContext, and use it when
emitting the dwarf version into the debug info.

llvm-svn: 207739

[C++] Use 'nullptr'. Tools edition.

llvm-svn: 207176

Create MCTargetOptions.

For now it contains a single flag, SanitizeAddress, which enables
AddressSanitizer instrumentation of inline assembly.

Patch by Yuri Gorshenin.

llvm-svn: 206971

Add missing include (for r205050)

llvm-svn: 205053

llvm-mc: error when -compress-debug-sections is requested and zlib is not linked

This is a bit of a stab in the dark, since I have zlib on my machine.
Just going to bounce it off the bots & see if i

llvm-mc: error when -compress-debug-sections is requested and zlib is not linked

This is a bit of a stab in the dark, since I have zlib on my machine.
Just going to bounce it off the bots & see if it sticks.

Do we have some convention for negative REQUIRES: checks? Or do I just
need to add a feature like I've done here?

llvm-svn: 205050

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DebugInfo: Support for compressed debug info sections

1) When creating a .debug_* section and instead create a .zdebug_
section.
2) When creating a fragment in a .zdebug_* section, make it a comp

DebugInfo: Support for compressed debug info sections

1) When creating a .debug_* section and instead create a .zdebug_
section.
2) When creating a fragment in a .zdebug_* section, make it a compressed
fragment.
3) When computing the size of a compressed section, compress the data
and use the size of the compressed data.
4) Emit the compressed bytes.

Also, check that only if a section has a compressed fragment, then that
is the only fragment in the section.

Assert-fail if the fragment's data is modified after it is compressed.

Initial review on llvm-commits by Eric Christopher and Rafael Espindola.

llvm-svn: 204958

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Remove llvm-mc's disable-cfi option.

It was dead.

llvm-svn: 204404

Replace OwningPtr<T> with std::unique_ptr<T>.

This compiles with no changes to clang/lld/lldb with MSVC and includes
overloads to various functions which are used by those projects and llvm
which ha

Replace OwningPtr<T> with std::unique_ptr<T>.

This compiles with no changes to clang/lld/lldb with MSVC and includes
overloads to various functions which are used by those projects and llvm
which have OwningPtr's as parameters. This should allow out of tree
projects some time to move. There are also no changes to libs/Target,
which should help out of tree targets have time to move, if necessary.

llvm-svn: 203083

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[C++11] Replace OwningPtr::take() with OwningPtr::release().

llvm-svn: 202957

Replace the F_Binary flag with a F_Text one.

After this I will set the default back to F_None. The advantage is that
before this patch forgetting to set F_Binary would corrupt a file on windows.
For

Replace the F_Binary flag with a F_Text one.

After this I will set the default back to F_None. The advantage is that
before this patch forgetting to set F_Binary would corrupt a file on windows.
Forgetting to set F_Text produces one that cannot be read in notepad, which
is a better failure mode :-)

llvm-svn: 202052

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Remove support for not using .loc directives.

Clang itself was not using this. The only way to access it was via llc.

llvm-svn: 200862

Pass a MCSubtargetInfo down to the TargetStreamer creation.

With this the target streamers will be able to know the target features that
are in use.

llvm-svn: 200135