llvm-svn: 203898

llvm-svn: 203897

llvm-svn: 203896

llvm-svn: 203895

Remove seemingly dead method. It was marked virtual but doesn't override anything and there don't seem to be any in tree callers.

llvm-svn: 203894

llvm-svn: 203893

LLD fails to link symbol "_main" if the symbol is in a library file and
the library file is given as a bare argument (i.e. not with /defaultlib
option). It's because library files given as bare arguments are processed
before other libraries given with /defaultlib, so when Linker finds msvcrtd
needs a definition for "_main", the file providing the main function has
already been processed and skipped. Linker don't revisit libraries if it's
not given with /defaultlib.

To fix it this patch change the way of command line handling; files end with
".lib" are treated as if they are given with /defaultlib. I don't believe
it's 100% correct behavior but it's better than before.

llvm-svn: 203892

llvm-svn: 203891

issue in that the new MachineRegisterInfo bundle iterators didn't
dereference to the START of the bundle, while the old skipBundle()
method did.

llvm-svn: 203890

Looks like a major cause of instability on Windows is this thread-safety bug.

llvm-svn: 203889

llvm-svn: 203888

llvm-svn: 203887

llvm-svn: 203886

This is because the PCH is tied to the module files, if one of the module files changes or gets removed
the build system should re-build the PCH file.

rdar://16321245

llvm-svn: 203885

This option is not documented and seems weird, but yeah we need it anyway.

llvm-svn: 203884

Fix issue with r203865.  The old behaviour would get a MachineOperand then find the MI for the bundle the MI was in.  The new behaviour was failing to get the parent bundle and instead just used the MI from the MachineOperand

llvm-svn: 203883

[Modules] Make sure that the synthesized file "__inferred_module.map" doesn't show up as dependency of a module file.

Follow-up for rdar://15459210

llvm-svn: 203882

No functionality change.

llvm-svn: 203881

llvm-svn: 203880

Fixed misuse of isascii. Also fixes mingw32 build, see http://msdn.microsoft.com/en-us/library/ms235417.aspx

llvm-svn: 203879

This is to make sure that the Windows-style command line tokenizer is
working as expected.

llvm-svn: 203877

llvm-svn: 203876

If the driver finds a command line option in the form of "@filename", the
option will be replaced with the content of the given file. It's an error
if a response file cannot be read.

llvm-svn: 203875

One more time. Multi-line expressions when there is no valid expression that follow “expr [options] —“.

llvm-svn: 203874

llvm-svn: 203873

Allow a multi-line expression to follow expression commands with options when there is no expression following the option terminating “—“.

llvm-svn: 203872

Contributed-by: Sam Novak <snovak@uwsp.edu>
llvm-svn: 203871

Contributed-by: Sam Novak <snovak@uwsp.edu>
llvm-svn: 203869

Contributed-by: Sam Novak <snovak@uwsp.edu>
llvm-svn: 203868

llvm-svn: 203867

These linkages were introduced some time ago, but it was never very
clear what exactly their semantics were or what they should be used
for. Some investigation found these uses:

* utf-16 strings in clang.
* non-unnamed_addr strings produced by the sanitizers.

It turns out they were just working around a more fundamental problem.
For some sections a MachO linker needs a symbol in order to split the
section into atoms, and llvm had no idea that was the case. I fixed
that in r201700 and it is now safe to use the private linkage. When
the object ends up in a section that requires symbols, llvm will use a
'l' prefix instead of a 'L' prefix and things just work.

With that, these linkages were already dead, but there was a potential
future user in the objc metadata information. I am still looking at
CGObjcMac.cpp, but at this point I am convinced that linker_private
and linker_private_weak are not what they need.

The objc uses are currently split in

* Regular symbols (no '\01' prefix). LLVM already directly provides
whatever semantics they need.
* Uses of a private name (start with "\01L" or "\01l") and private
linkage. We can drop the "\01L" and "\01l" prefixes as soon as llvm
agrees with clang on L being ok or not for a given section. I have two
patches in code review for this.
* Uses of private name and weak linkage.

The last case is the one that one could think would fit one of these
linkages. That is not the case. The semantics are

* the linker will merge these symbol by *name*.
* the linker will hide them in the final DSO.

Given that the merging is done by name, any of the private (or
internal) linkages would be a bad match. They allow llvm to rename the
symbols, and that is really not what we want. From the llvm point of
view, these objects should really be (linkonce|weak)(_odr)?.

For now, just keeping the "\01l" prefix is probably the best for these
symbols. If we one day want to have a more direct support in llvm,
IMHO what we should add is not a linkage, it is just a hidden_symbol
attribute. It would be applicable to multiple linkages. For example,
on weak it would produce the current behavior we have for objc
metadata. On internal, it would be equivalent to private (and we
should then remove private).

llvm-svn: 203866

operator* on the by-operand iterators to return a MachineOperand& rather than
a MachineInstr&.  At this point they almost behave like normal iterators!

Again, this requires making some existing loops more verbose, but should pave
the way for the big range-based for-loop cleanups in the future.

llvm-svn: 203865

Add queues tests for when libBacktraceRecording is absent.

llvm-svn: 203864

[C++11] Replacing ObjCProtocolDecl iterators protocol_begin() and protocol_end() with iterator_range protocols(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203863

bitcast between pointers of two different address spaces if they happened to have
the same pointer size.

llvm-svn: 203862

llvm-svn: 203861

llvm-svn: 203859

This type now represents all the data for the DWARF line table:
directory names, file names, and the line table proper.

llvm-svn: 203858

[C++11] Replacing ObjCInterfaceDecl iterators known_extensions_begin() and known_extensions_end() with iterator_range known_extensions(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203857

llvm-svn: 203856