Because of the previous change (r234074), ELFObjectReader became just
an alias for ELFReader. We can replace all occurrences of ELFObjectReader
with ELFReader.

In this patch, I also replaced ELFDSOReader to remove the alias template.

llvm-svn: 234076

[X86] Don't use GR64 register 'and with immediate' instructions if the immediate is zero in the upper 33-bits or upper 57-bits. Use GR32 instructions instead.

Previously the patterns didn't have high enough priority and we would only use the GR32 form if the only the upper 32 or 56 bits were zero.

Fixes PR23100.

llvm-svn: 234075

So that we can remove one template parameter from ELFReader.
ELF port is heavily templatized, and I want to reduce the usage
where possible.

llvm-svn: 234074

llvm-svn: 234073

llvm-svn: 234072

Similar problem as in the last part of r200486.

llvm-svn: 234071

llvm-svn: 234070

llvm-svn: 234069

Only MIPS defined the member function, but this feature is not actually
MIPS-specific. Also, the dependency to the MIPS-only member function
prevented us from merging <Arch>ELF{Object,DSO}Reader classes.

This patch moves the feature from MipsLinkingContext to LinkingContext.

llvm-svn: 234068

Now all fields in the WinEH xdata have been filled out.

llvm-svn: 234067

llvm-svn: 234066

It is enough to have single TargetLayout class.

llvm-svn: 234065

llvm-svn: 234064

Not all of them (there's still a fallback for this specific function
that omits the type parameter) but it's some I bothered to do now.

llvm-svn: 234063

This add support for catching an exception such that an exception object
available to the catch handler will be initialized by the runtime.

llvm-svn: 234062

We don't need to represent UnwindHelp in IR.  Instead, we can use the
knowledge that we are emitting the parent function to decide if we
should create the UnwindHelp stack object.

llvm-svn: 234061

The two classes are the same other than a few exceptions.
This patch merges them using templates.

llvm-svn: 234060

llvm-svn: 234059

llvm-svn: 234058

llvm-svn: 234057

<Arch>ELFReader.h contains only a few typedefs. The typedefs are used
only by one class in <Arch>TargetHandler.h. Thus, the headers don't
worth to be independent files.

Since MipsELFReader.h contains code other than the boilerplate, I didn't
touch that file in this patch.

llvm-svn: 234056

llvm-svn: 234055

No functional changes.

llvm-svn: 234052

CHECK-LABEL had the wrong function name.

llvm-svn: 234051

<Arch>TargetHandler.h and <ArcH>RelocationHandler.h include each other.
This patch breaks the circular dependencies.

llvm-svn: 234050

We try to run lldb -P and jump through a bunch of other hoops
to figure out where the Python module is so that we can add its
location to sys.path.  The error message printed when this
doesn't work was left over from the time when Mac was the only
platform, so it presented a Mac-specific diagnostic on all
platforms related to the LLDB Framework.  This patch prints
a more useful diagnostic when not on Mac that gives a number
of other diagnostic messages to check.

llvm-svn: 234049

The FreeBSD debug register access is a little usual, but in any case
different from Linux. As it stands it's not possible to share an
implementation of DR_OFFSET, so revert that part of r233837 and provide
a separate FreeBSD and Linux implementation.

We'll still want a better fix, but this should restore basic
functionality (and the buildbot).

llvm-svn: 234048

All <Arch>ELFFileCreateFileTraits structs are the same except its file type.
That means that we don't need to pass the type traits. Instead, we can only
pass file types. By doing this, we can remove copy-pasted boilerplates.

llvm-svn: 234047

InstCombine didn't realize that it needs to use DataLayout to determine
how wide pointers are.  This lead to assertion failures.

This fixes PR23113.

llvm-svn: 234046

llvm-svn: 234045

result_type is no longer part of the type traits, so keeping it here
is confusing.

llvm-svn: 234044

llvm-svn: 234043

The plan here is to push the API changes out from the common components
(like Constant::getGetElementPtr and IRBuilder::CreateGEP related
functions) and just update callers to either pass the type if it's
obvious, or pass null.

Do this with LoadInst as well and anything else that comes up, then to
start porting specific uses to not pass null anymore - this may require
some refactoring in each case.

llvm-svn: 234042

Differential Revision: http://reviews.llvm.org/D8596

llvm-svn: 234041

No functional changes.

llvm-svn: 234040

What we are doing in ELFTarget.h was dubious. In the file, we define
partial classes of <Arch>LinkingContexts to declare only static member
functions. We have different (complete) class definitions in other files.
They would conflict if they exist in the same compilation unit (because
the ones defined in ELFTarget.h has only static member functions).
I don't think this was valid C++.

http://reviews.llvm.org/D8797

llvm-svn: 234039

As a follow-up to r234021, assert that a debug info intrinsic variable's
`MDLocalVariable::getInlinedAt()` always matches the
`MDLocation::getInlinedAt()` of its `!dbg` attachment.

The goal here is to get rid of `MDLocalVariable::getInlinedAt()`
entirely (PR22778), but I'll let these assertions bake for a while
first.

If you have an out-of-tree backend that just broke, you're probably
attaching the wrong `DebugLoc` to a `DBG_VALUE` instruction.  The one
you want is the location that was attached to the corresponding
`@llvm.dbg.declare` or `@llvm.dbg.value` call that you started with.

llvm-svn: 234038

llvm-svn: 234037

This avoids crashing or corrupting data if multiple concurrent
processes write to the same .gcda file. This is hard to test, since
the previous behaviour was a data race that often worked out, and it
ignores errors in flock to fall back to the old racy behaviour so that
it won't degrade the behaviour on filesystems that don't support
flock.

llvm-svn: 234036

llvm-svn: 234034