llvm-svn: 270915

llvm-svn: 270914

Previously CMake would successfully configure and compile (with warnings
about ``-fsanitize-coverage=...`` being unused) but the tests LibFuzzer
tests would fail.

Differential Revision: http://reviews.llvm.org/D20662

llvm-svn: 270913

Previously the flags were only being set correctly when the
build type was "Release". Now the build should work properly
for all the supported build types. When building libFuzzer
the optimization level respects whatever is used for the
rest of LLVM but for the LibFuzzer tests we force -O0.

Differential Revision: http://reviews.llvm.org/D20558

llvm-svn: 270912

This adds support for YAML round tripping dyld info weak bindings. The storage and format of these is the same as regular bind opcodes, they are just interpreted differently by dyld.

llvm-svn: 270911

llvm-svn: 270909

Global variables and aliases are emitted eagerly, but there may not be any in
the incoming module. In that case, we can save some memory and compile time by
not building, emitting and tracking an empty globals module.

llvm-svn: 270908

We were creating a weak external that tried to reference a static symbol. That
would always fail to link with link.exe.

We now create an external symbol in the same position as the local and refer
to that. This works with link.exe and matches what gas does.

llvm-svn: 270906

llvm-svn: 270905

crash was due to a stack overflow, chances are good that this would also cause
a stack overflow.

llvm-svn: 270903

llvm-svn: 270902

This adds support for YAML round tripping dyld info bind opcodes. Bind opcodes can have signed or unsigned LEB128 data, and they can have symbols associated with them.

llvm-svn: 270901

[libFuzzer] reimplement the way we do -only_ascii to allow more 'const' in function declarations. Add a test for -only_ascii. NFC intended

llvm-svn: 270900

Symbol resolution should be done on the top layer of the stack unless there's a
good reason to do otherwise. In this case it would have worked because
OptimizeLayer::addModuleSet eagerly passes all modules down to the
CompileLayer, meaning that searches in CompileLayer will find the definitions.
In later chapters where the top layer's addModuleSet isn't a pass-through, this
would break.

llvm-svn: 270899

The aggressive anti-dependency breaker can rename the restored callee-
saved registers. To prevent this, mark these registers are live on all
paths to the return/tail-call instructions, and add implicit use operands
for them to these instructions.

llvm-svn: 270898

Canonicalize (srl (bswap i32 x), 16) to (rotr (bswap i32 x), 16), if the high
16-bits of x are zero. Similarly, canonicalize (srl (bswap i64 x), 32) to
(rotr (bswap i64 x), 32), if the high 32-bits of x are zero.

test_rev_w_srl16:            test_rev_w_srl16:
  and w8, w0, #0xffff          and     w8, w0, #0xffff
  rev w8, w8           --->    rev16   w0, w8
  lsr     w0, w8, #16

test_rev_x_srl32:            test_rev_x_srl32:
  rev x8, x8           --->    rev32   x0, x8
  lsr x0, x8, #32

llvm-svn: 270896

Summary: Enable load-store-opt by default, and update LIT tests.

Reviewers: arsenm

Differential Revision: http://reviews.llvm.org/D20694

llvm-svn: 270894

r270777 improved the precision of alloca vs. inbounbds GEP alias queries: if
we have (a) an inbounds GEP and (b) a pointer based on an alloca, and the
beginning of the object the GEP points to would have a negative offset with
respect to the alloca, then the GEP can not alias pointer (b).

This makes the same logic fire when (b) is based on a GlobalVariable instead
of an alloca.

Differential Revision: http://reviews.llvm.org/D20652

llvm-svn: 270893

An exception could prevent a store from occurring but MemCpyOpt's
callslot optimization would fire anyway, causing the store to occur.

This fixes PR27849.

llvm-svn: 270892

llvm-svn: 270889

This fixes PR27879.

Differential Revision: http://reviews.llvm.org/D20659

llvm-svn: 270888

Require that Hexagon is a registered target.

llvm-svn: 270887

llvm-svn: 270885

It looks like this doesn't get a lot of use.

llvm-svn: 270883

APInt::slt was copying the LHS and RHS in to temporaries then making
them unsigned so that it could use an unsigned comparision.  It did
this even on the paths which were trivial to give results for, such
as the sign bit of the LHS being set while RHS was not set.

This changes the logic to return out immediately in the trivial cases,
and use an unsigned comparison in the remaining cases.  But this time,
just use the unsigned comparison directly without creating any temporaries.

This works because, for example:
  true = (-2 slt -1) = (0xFE ult 0xFF)

Also added some tests explicitly for slt with APInt's larger than 64-bits
so that this new code is tested.

Using the memory for 'opt -O2 verify-uselistorder.lto.opt.bc -o opt.bc'
(see r236629 for details), this reduces the number of allocations from
26.8M to 23.9M.

llvm-svn: 270881

The memory location that corresponds to a volatile operation is very
special.  They are observed by the machine in ways which we cannot
reason about.

Differential Revision: http://reviews.llvm.org/D20555

llvm-svn: 270879

Fixes build error on windows where MSVC does not
support list initialization inside member initializer list.

llvm-svn: 270877

llvm-svn: 270876

IndirectStubsManagers.

llvm-svn: 270874

NVVMIntrRange adds !range metadata to calls of NVVM intrinsics
that return values within known limited range.

This allows LLVM to generate optimal code for indexing arrays
based on tid/ctaid which is a frequently used pattern in CUDA code.

Differential Revision: http://reviews.llvm.org/D20644

llvm-svn: 270872

Hwreg(...) syntax implementation unified with sendmsg(...).
Common strings moved to Utils
MathExtras.h functionality utilized.
Added missing build dependency in Disassembler.

Differential Revision: http://reviews.llvm.org/D20381

llvm-svn: 270871

At some point we're going to need libObject to have this dependency, but as it is now this is causing too many headaches. This commit will reduce the linkage to just llvm-objdump where it is strictly needed, and we'll cross the libObject bridge later when we need it.

llvm-svn: 270866

llvm-svn: 270865

llvm-svn: 270861

Since some time clang itself figures out the default for ms-compatibility-version  and uses it. Trying to figure it out during build is redundant and also will not work when the environment variable VSINSTALLDIR is not defined (which is not defined if you don't install whole Visual Studio but use Visual C++ Build Tools package).

Tested by bootstrapping clang with clang-cl.

Differential Revision: http://reviews.llvm.org/D20672

llvm-svn: 270860

Fix build warning introduced in r270552 "[AMDGPU][llvm-mc] Disassembler: support for TTMP/TBA/TMA registers."

llvm-svn: 270859

[X86][SSE] When lowering a 256-bit shuffle as PMOVZX, reduce the input vector to the lower 128-bit subvector.

Most often as not this is what it started out as, the extraction is zero-cost on AVX and the PMOVZX/PMOVSX folding logic is based around 128-bit loads.

llvm-svn: 270858

llvm-svn: 270857

Similar to r269948, but for argument lowering.

Fixes PR27762

Differential Revision: http://reviews.llvm.org/D20430

llvm-svn: 270856

The exit-on-error flag is needed to avoid an assert where
llvm::SelectionDAGISel::LowerArguments doesn't create enough arguments. Fill up
with zeroes to reach the right number of args.

Fixes PR27767.

Differential Revision: http://reviews.llvm.org/D20571

llvm-svn: 270855