llvm-svn: 194749

llvm-svn: 194748

This was casuing my release+asserts build on Windows to fail.

llvm-svn: 194747

llvm-svn: 194738

llvm-svn: 194737

Summary:
Some machine-type-neutral object files containing only undefined symbols
actually do exist in the Windows standard library. Need to recognize them
as COFF files.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2164

llvm-svn: 194734

llvm-svn: 194733

llvm-svn: 194728

llvm-svn: 194724

llvm-svn: 194720

llvm-svn: 194719

We used to perform an invalid operation on an MVT and crash, which wasn't much
fun.

Patch by Oliver Stannard.

llvm-svn: 194714

On windows we don't print .weak for function definitions, so count was only
finding 1 'weak'.

llvm-svn: 194713

llvm-svn: 194712

In ELF and COFF an alias is just another offset in a section. There is no way
to represent an alias to something in another file.

In MachO, the spec has the N_INDR type which should allow for exactly that, but
is not currently implemented. Given that it is specified but not implemented,
we error in codegen to avoid miscompiling but don't reject aliases to
declarations in the verifier to leave the option open of implementing it.

In the past we have used alias to declarations as a way of implementing
weakref, which is why it exists in some old tests which this patch updates.

llvm-svn: 194705

llvm-svn: 194701

This may fix hexagon-elf bots.

llvm-svn: 194700

Indirect call wrapping helps MSanDR (dynamic instrumentation companion tool
for MSan) to catch all cases where execution leaves a compiler-instrumented
module by allowing the tool to rewrite targets of indirect calls.

This change is an optimization that skips wrapping for calls when target is
inside the current module. This relies on the linker providing symbols at the
begin and end of the module code (or code + data, does not really matter).
Gold linker provides such symbols by default. GNU (BFD) linker needs a link
flag: -Wl,--defsym=__executable_start=0.

More info:
https://code.google.com/p/memory-sanitizer/wiki/MSanDR#Native_exec

llvm-svn: 194697

llvm-svn: 194695

"diff -b" -- Ignore space changes.

llvm-svn: 194694

llvm-svn: 194693

llvm-svn: 194692

Added VMOSHDUP/VMOVSLDUP shuffle instructions.

llvm-svn: 194691

the legacy stuff. =]

llvm-svn: 194689

llvm-svn: 194688

llvm-svn: 194684

llvm-svn: 194683

with the older version of the moveToVALU changes.

llvm-svn: 194682

llvm-svn: 194681

llvm-svn: 194680

llvm-svn: 194679

If a null call target is provided, don't emit a dummy call. This
allows the runtime to reserve as little nop space as it needs without
the requirement of emitting a call.

llvm-svn: 194676

llvm-svn: 194673

This allows to only link in the needed targets, reducing binary
size and more importantly link time.

Note that this is an incomplete implementation: currently,
LLVM does not have the plumbing which would allow to conditionally
link in AsmPrinter, AsmParser and Disassembler for the targets
which support them. This should be improved in the future.

llvm-svn: 194670

llvm-svn: 194669

There is nothing special about quotes and newlines from the object
file point of view, only the assembler has to worry about expanding
the \n and \".

This patch then removes the special handling from the Mangler.

llvm-svn: 194667

LDC, the LLVM-based D compiler, is already using LLVM 3.4.

llvm-svn: 194665

llvm-svn: 194662

llvm-svn: 194661

llvm-svn: 194659