llvm-svn: 328420

Currently when we build input sections list in linker script
we ignore all rel[a] sections. That was done to support
scripts like .rela.dyn : { *(.rela.data) } for emit relocs.

Though as a result following scripts were also silently ignored:

/DISCARD/ : { *(.rela.plt)
/DISCARD/ : { *(.rela.dyn)

and we produced output with this sections. That is not ideal.
The solution this patch suggests is simple: do not ignore synthetic
rel[a] sections. That way we can enable common discarding logic
for them and report a proper error.

Differential revision: https://reviews.llvm.org/D41640

llvm-svn: 328419

Summary: In Python 3, filters are lazily evaluated and strings are not bytes.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D44217

llvm-svn: 328418

llvm-svn: 328417

This reduces the size of llvm-mc by at least 150k since we no longer have to multiply the attribute across 7 tables.

llvm-svn: 328416

Summary:
- Intercepting mprotect calls.
- Fixing forgotten flag check.

Patch by David CARLIER

Reviewers: vitalybuka, vsk

Subscribers: delcypher, srhines, kubamracek, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D44777

llvm-svn: 328415

llvm-svn: 328414

llvm-svn: 328413

llvm-svn: 328412

The outer switch only had one valid block so didn't provide any value.

llvm-svn: 328411

The 3DNow instructions are encoded a little weird, but we can still represent it as an opcode map.

llvm-svn: 328410

Summary:
As the title says, this makes following code compile:

```
template<typename> struct Foo {};
Foo() -> Foo<void>;

Foo f; // ok
```

Thanks Nicolas Lesser for coining the fix.

Reviewers: rsmith, lichray

Reviewed By: rsmith, lichray

Subscribers: lichray, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D38216

llvm-svn: 328409

llvm-svn: 328408

Differential Revision: https://reviews.llvm.org/D44705

llvm-svn: 328407

When the call expression is not available.

llvm-svn: 328406

These nodes only use the lower 32 bits of their inputs so we can use SimplifyDemandedBits to simplify them.

Differential Revision: https://reviews.llvm.org/D44375

llvm-svn: 328405

llvm-svn: 328404

llvm-svn: 328403

There were a few too many places duplicating this.

llvm-svn: 328402

Previously, we used 0 as an alias for VER_NDX_GLOBAL and had a dummy
entry in SharedFile::Verdefs so that the access to the array is within
its boundary. But that's not straightforwad. We can just stop doing both.

llvm-svn: 328401

offsets for code models other than small/medium. For JIT application,
memory layout is less controlled and can result in truncations
otherwise.

Patch based on one by Olexa Bilaniuk!

llvm-svn: 328400

Fixes layering, since Transforms/Utils doesn't depend on CodeGen, so
shouldn't include headers from it.

llvm-svn: 328399

Should be NFC since nothing used the enum value. The instruction descriptions are generated from tablegen which had the correct value.

llvm-svn: 328398

ValueTypes.h is implemented in IR already.

llvm-svn: 328397

It's also used by utils/TableGen so needs to reside somewhere common to
TableGen and CodeGen.

llvm-svn: 328396

This is used by llvm tblgen as well as by LLVM Targets, so the only
common place is Support for now. (maybe we need another target for these
sorts of things - but for now I'm at least making them correct & we can
make them better if/when people have strong feelings)

llvm-svn: 328395

This includes llvm-c/TargetMachine.h which is logically part of
libTarget (since libTarget implements llvm-c/TargetMachine.h's
functions).

llvm-svn: 328394

This is used from llvm tblgen and the X86Disassembler - the only common
library (apart from TableGen, which probably doesn't make sense to have
as a dependency from a release tool (rather than a use-while-building-llvm
tool) of LLVM)

llvm-svn: 328393

It's implemented in Target & include from other Target headers, so the
header should be in Target.

llvm-svn: 328392

Since SectionBase::getOutputSection handles ICF replaces and
SectionBase::getOffset was handling it in some cases, it is more
consistent to have getOffset always handle it.

llvm-svn: 328391

SectionBase::getOutputSection handles replacement sections, so this
code doesn't have to.

llvm-svn: 328390

<rdar://problem/36035075>, <rdar://problem/36035039>

llvm-svn: 328389

This partially reverts commit r328261. The GCC bug has been fixed in
trunk and has never existed in a released version. Therefore the changes
to variant are unneeded.

However, the additional tests have been left in place.

llvm-svn: 328388

llvm-svn: 328387

Both GCC and MSVC only look at the low byte of a boolean when it is
passed.

llvm-svn: 328386

Summary:
Porting HWASan to Linux x86-64, first of the three patches, compiler-rt part.

The approach is similar to ARM case, trap signal is used to communicate
memory tag check failure. int3 instruction is used to generate a signal,
access parameters are stored in nop [eax + offset] instruction immediately
following the int3 one

Had to add HWASan init on malloc because, due to much less interceptors
defined (most other sanitizers intercept much more and get initalized
via one of those interceptors or don't care about malloc), HWASan was not
initialized yet when libstdc++ was trying to allocate memory for its own
fixed-size heap, which led to CHECK-fail in AllocateFromLocalPool.

Also added the CHECK() failure handler with more detailed message and
stack reporting.

Reviewers: eugenis

Subscribers: kubamracek, dberris, mgorny, kristof.beyls, delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D44705

llvm-svn: 328385

Summary:
Disables certain CMP optimizations to improve fuzzing signal under -O1
and -O2.

Switches all fuzzer tests to -O2 except for a few leak tests where the
leak is optimized out under -O2.

Reviewers: kcc, vitalybuka

Reviewed By: vitalybuka

Subscribers: cfe-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D44798

llvm-svn: 328384

installing in the man page directory.

llvm-svn: 328383

llvm-svn: 328382

A bug in BFD linker is not our FIXME item.

llvm-svn: 328381