New option --elf-output-style=LLVM or GNU
Enables -file-headers in readelf style when elf-output-style=GNU

Differential revision: http://reviews.llvm.org/D14128

llvm-svn: 260430

llvm-svn: 260429

llvm-svn: 260428

Summary:
This fixes a crash where subsequent spills would be unable to scavenge
a register. In particular, it fixes a crash in piglit's
spec@glsl-1.50@execution@geometry@max-input-components (the test still
has a shader that fails to compile because of too many SGPR spills, but
at least it doesn't crash any more).

This is a candidate for the release branch.

Reviewers: arsenm, tstellarAMD

Subscribers: qcolombet, arsenm

Differential Revision: http://reviews.llvm.org/D16558

llvm-svn: 260427

llvm-svn: 260426

that's not true in general. Instead, use a preference order to pick the
standard C++ signature 'char*(char*, int)' where possible and fall back to the
C signature 'char*(const char*, int)' only when it's unavailable.

llvm-svn: 260425

The patch adds lazy relocation support for MIPS and R_MIPS_26 relocation
handing.

R_MIPS_26 relocation might require PLT entry creation. In that case it
is fully supported by the patch. But if the relocation target is a local
symbol we need to use a different expression to calculate the relocation
result. This case is not implemented yet because there is no method to
get know the kind of relocation target in the `relocateOne` routine.

Differential Revision: http://reviews.llvm.org/D16982

llvm-svn: 260424

This was supposed to have been removed but made it back in
accidentally.

llvm-svn: 260423

llvm-svn: 260422

Instead of passing varargs directly on the user stack, allocate a buffer in
the caller's stack frame and pass a pointer to it. This simplifies the C
ABI (e.g. non-C callers of C functions do not need to use C's user stack if
they have their own mechanism) and allows further optimizations in the future
(e.g. fewer functions may need to use the stack).

Differential Revision: http://reviews.llvm.org/D17048

llvm-svn: 260421

The following batch files allow to launch scan-build from an arbitrary location if path to clang\tools\scan-build-py\bin is added to %PATH%.

llvm-svn: 260420

llvm-svn: 260419

llvm-svn: 260418

llvm-svn: 260417

Very often in LLVM we have APIs that take a bitwidth and a uint64_t that
we pass immediates such as ~0U to. Consider APInt, Constant, and
MachineInstrBuilder::addImm. Fixing all uses of these APIs to manually
extend their arguments to uint64_t doesn't seem worth it.

llvm-svn: 260416

Differential revision: http://reviews.llvm.org/D17060

llvm-svn: 260414

llvm-svn: 260413

This reverts commit r260408. Bot failure that I need to investigate.

llvm-svn: 260412

Silence some MSVC false positive warnings about integer zexts and falling off the end of a covered switch

llvm-svn: 260411

Patch by Alexander Riccio

This patch enables `constexpr` on Visual Studio 2015 by adding `||
LLVM_MSC_PREREQ(1900)` to the preprocessor `#if` statement. Since VS2013
doesn't support `constexpr`, that's purposely excluded. The
`LLVM_CONSTEXPR` macro is used in ~25 places.

I also added the MSVC/SAL equivalent of:

  - `__attribute__((__warn_unused_result__))` as an
    `LLVM_ATTRIBUTE_UNUSED_RESULT` definition

  - `__attribute__((returns_nonnull))` as an
    `LLVM_ATTRIBUTE_RETURNS_NONNULL` definition

...in case anybody ever decides to run `/analyze` on LLVM (probably
myself, if anybody)

Reviewers: rnk, aaron.ballman

Differential Revision: http://reviews.llvm.org/D16751

llvm-svn: 260410

llvm-svn: 260409

Summary:
This patch uses the lower 64-bits of the MD5 hash of a function name as
a GUID in the function index, instead of storing function names. Any
local functions are first given a global name by prepending the original
source file name. This is the same naming scheme and GUID used by PGO in
the indexed profile format.

This change has a couple of benefits. The primary benefit is size
reduction in the combined index file, for example 483.xalancbmk's
combined index file was reduced by around 70%. It should also result in
memory savings for the index file in memory, as the in-memory map is
also indexed by the hash instead of the string.

Second, this enables integration with indirect call promotion, since the
indirect call profile targets are recorded using the same global naming
convention and hash. This will enable the function importer to easily
locate function summaries for indirect call profile targets to enable
their import and subsequent promotion.

The original source file name is recorded in the bitcode in a new
module-level record for use in the ThinLTO backend pipeline.

Reviewers: davidxl, joker.eph

Subscribers: llvm-commits, joker.eph

Differential Revision: http://reviews.llvm.org/D17028

llvm-svn: 260408

llvm-svn: 260407

llvm-svn: 260406

llvm-svn: 260405

Currently you can't specify node properties like commutativity on
a PatFrag. If you want to create a PatFrag on a commutative node
with a hasOneUse predicate, this enables you to specify that the
PatFrag is also commutable.

llvm-svn: 260404

llvm-svn: 260403

llvm-svn: 260402

Differential Revision: http://reviews.llvm.org/D17038

llvm-svn: 260401

This patch reads the indirect-call value records in the profile and makes the
annotation in the indirect-call instruction. This is for IR level profile
instrumentation.

Differential Revision: http://reviews.llvm.org/D16935

llvm-svn: 260400

llvm-svn: 260399

These weren't actually sharing anything in the common
LowerLOAD.

llvm-svn: 260398

This reverts commit a58765909660a7195b32e0cc8c7476168b913750.

llvm-svn: 260397

llvm-svn: 260396

Summary:
As discussed on IRC, move the ThinLTOGlobalProcessing code out of
the linker, and into TransformUtils. The name of the class is changed
to FunctionImportGlobalProcessing.

Reviewers: joker.eph, rafael

Subscribers: joker.eph, llvm-commits

Differential Revision: http://reviews.llvm.org/D17081

llvm-svn: 260395

llvm-svn: 260394

Fix the result truncation bug: [PR26560]
Test case is following (compiler-rt).
 

llvm-svn: 260393

Differential Revision: http://reviews.llvm.org/D16822

llvm-svn: 260392

New option --elf-output-style=LLVM or GNU
Enables -file-headers in readelf style when elf-output-style=GNU

Differential revision: http://reviews.llvm.org/D14128

llvm-svn: 260391

The encodings for floating point conditions A(lways) and N(ever) were
incorrectly specified for the assembly parser, per Sparc manual v8 page
121. This change corrects that mistake.

Also, strangely, all of the branch instructions already had MC test
cases, except for the broken ones. Added the tests.

Patch by Chris Dewhurst

Differential Revision: http://reviews.llvm.org/D17074

llvm-svn: 260390