This reverts commit r276316.

llvm-svn: 276320

llvm-svn: 276319

[sanitizer] allocator: remove kPopulateSize and only use SizeClassMap::MaxCached; ensure that TransferBatch size is a power of two, refactor TransferBatch creation/destruction into separate functions.

llvm-svn: 276318

Another attempt at r276271, hopefully without breaking ModuleDebugInfo test.

llvm-svn: 276317

Summary:
The llvm.invariant.start and llvm.invariant.end intrinsics currently
support specifying invariant memory objects only in the default address space.

With this change, these intrinsics are overloaded for any adddress space for memory objects
and we can use these llvm invariant intrinsics in non-default address spaces.

Example: llvm.invariant.start.p1i8(i64 4, i8 addrspace(1)* %ptr)

This overloaded intrinsic is needed for representing final or invariant memory in managed languages.

Reviewers: tstellarAMD, reames, apilipenko

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D22519

llvm-svn: 276316

It doesn't appear to like this pattern:
  for (auto X : Xs)
    if (...) { ... }
    else ...;

We have heard anecdotes that range based for loops are implemented as a
token rewrite in MSVC's lexer, and that the most challenging part of the
rewrite is finding the end of the for loop. That makes sense, given that
it's a lexer.

llvm-svn: 276315

Make kStderrFd a macro to avoid dynamic initialization of the
report_file global. This actually causes a crash at runtime, because
ASan initializes before static initializers run.

Remove an unused variable in asan_win.cc.

llvm-svn: 276314

llvm-svn: 276313

Also, rename some of them for consistency and to follow current conventions.

llvm-svn: 276312

AppleClang can't compile the assignment expression.

llvm-svn: 276311

llvm-svn: 276310

The value I'd picked was correct, as per the recently published SG10 paper http://wg21.link/p0096r3

llvm-svn: 276309

This commit adds a generic SUB opcode to global-isel.

llvm-svn: 276308

Previously LLVM_HAS_GLOBAL_ISEL would directly get the value of
LLVM_BUILD_GLOBAL_ISEL. This could be any integer value and not just ON
and OFF. The problem is that lit.cfg was checking for ON to define that
global-isel was supported, thus if we were setting
LLVM_BUILD_GLOBAL_ISEL with an integer value, say 1, this test would
fail whereas we do build global-isel and want to test it.

llvm-svn: 276307

Previously LLVM_BUILD_GLOBAL_ISEL was a boolean variable and although,
this is strictly identical to an option, it did not convey the
information that the user may set it. Options are here for that.

llvm-svn: 276306

Group arithmetic operations, bitwise operations, and branch operations.

llvm-svn: 276305

Making smaller pieces out of some of these ~1000 line functions should make
it easier to incrementally upgrade them to handle vector types.

llvm-svn: 276304

llvm-svn: 276303

llvm-svn: 276302

llvm-svn: 276301

LinkerScript<ELFT>::assignAddresses is becoming larger and looks 
it can be good time for splitting. I expect to can more SectionsCommand's there, 
and dispatching some of them separatelly can help to keep method smaller either.

Differential revision: https://reviews.llvm.org/D22506

llvm-svn: 276300

Summary:
The memcpy and memmove functions are the same on windows.
The overlap detection logic is incorrect.

printf-1 test:
```
stdin>:2:114: note: possible intended match here
==877412==ERROR: AddressSanitizer: memcpy-param-overlap: memory ranges [0x0000002bf2a8,0x0000002bf2ad) and [0x0000002bf2a9, 0x0000002bf2ae) overlap
```                                                                                                                 ^

Reviewers: rnk

Subscribers: llvm-commits, wang0109, kubabrecka, chrisha

Differential Revision: https://reviews.llvm.org/D22610

llvm-svn: 276299

Differential Revision: https://reviews.llvm.org/D22538

llvm-svn: 276298

This commit adds a generic AND opcode to global-isel.

llvm-svn: 276297

Had 3 testcases failtures:
ELF/eh-frame-merge.s 
ELF/gc-sections-eh.s
ELF/gc-sections-lsda.s​

Problem was that OutputOff is size_t, which is 32
for this configuration and next
condition never was checked correctly:

if (PieceI->OutputOff == (uintX_t)-1)
  continue;

llvm-svn: 276296

Differential Revision: https://reviews.llvm.org/D21654

llvm-svn: 276295

Differential Revision: https://reviews.llvm.org/D21646

llvm-svn: 276294

Summary:
This change also changes findMatchingInsn and
findMatchingUpdateInsnForward to take DBG_VALUE opcodes into account
when tracking register defs and uses, which could potentially inhibit
these optimizations in the presence of debug information.

Reviewers: mcrosier

Subscribers: aemerson, rengolin, mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D22582

llvm-svn: 276293

No functionality change intended.

llvm-svn: 276292

Doesn't make a difference on x86, but avoids memory barriers on
weakly-ordered archs like PowerPC and ARM.

llvm-svn: 276291

Summary:
These unittests are not running on windows because they are using incorrect commands.
They were not failing on 32-bits because there is a requirement: asan-64-bits.

```
$ "nm" "C:\src\llvm\ninja64\projects\compiler-rt\test\asan\X86_64WindowsConfig\TestCases\Output\no_asan_gen_globals.c.tmp.exe"
# command stderr:
'nm': command not found
error: command failed with exit status: 127
```

```
$ "rm" "-rf" "C:\src\llvm\ninja64\projects\compiler-rt\test\asan\X86_64WindowsConfig\TestCases\Output/coverage-tracing"
$ "mkdir" "C:\src\llvm\ninja64\projects\compiler-rt\test\asan\X86_64WindowsConfig\TestCases\Output/coverage-tracing"
$ "A=x"
# command stderr:
'A=x': command not found
error: command failed with exit status: 127
```


```
$ "DIR=C:\src\llvm\ninja64\projects\compiler-rt\test\asan\X86_64WindowsConfig\TestCases\Output/coverage-order-pcs"
# command stderr:
'DIR=C:\\src\\llvm\\ninja64\\projects\\compiler-rt\\test\\asan\\X86_64WindowsConfig\\TestCases\\Output/coverage-order-pcs': command not found
error: command failed with exit status: 127
```

Reviewers: rnk

Subscribers: tberghammer, llvm-commits, danalbert, wang0109, srhines, kubabrecka, chrisha

Differential Revision: https://reviews.llvm.org/D22612

llvm-svn: 276290

Under normal circumstances we prefer the higher performance MOVD to extract the 0'th element of a v8i16 vector instead of PEXTRW.

But as detailed on PR27265, this prevents the SSE41 implementation of PEXTRW from folding the store of the 0'th element. Additionally it prevents us from making use of the fact that the (SSE2) reg-reg version of PEXTRW implicitly zero-extends the i16 element to the i32/i64 destination register.

This patch only preferentially lowers to MOVD if we will not be zero-extending the extracted i16, nor prevent a store from being folded (on SSSE41).

Fix for PR27265.

Differential Revision: https://reviews.llvm.org/D22509

llvm-svn: 276289

Summary:
We've had two copies of code for launching processes:
- one in NativeProcessLinux, used for launching debugged processes
- one in ProcessLauncherAndroid, used on android for launching all other kinds of processes

These have over time acquired support for various launch options, but neither supported all of
them. I now replace them with a single implementation ProcessLauncherLinux, which supports all
the options the individual versions supported and set it to be used to launch all processes on
linux.

This also works around the ETXTBSY issue on android when the process is started from the platform
instance, as that used to go through the version which did not contain the workaround.

Reviewers: tberghammer

Subscribers: tberghammer, danalbert, srhines, lldb-commits

Differential Revision: https://reviews.llvm.org/D22457

llvm-svn: 276288

llvm-svn: 276287

Summary:
This is an other tentative to fix:
https://reviews.llvm.org/D22588

It's less clever, but should work.

Turn out there is not an easy way to write a portable print
for a pointer in lowercase without the prefix 0x.

Reviewers: rnk

Subscribers: llvm-commits, wang0109, kubabrecka, chrisha

Differential Revision: https://reviews.llvm.org/D22606

llvm-svn: 276286

As requested on D22509, I've pulled out the v8i16 extraction lowering as the SSE41 and pre-SSE41 implementations are effectively the same.

llvm-svn: 276285

No functionality change intended.

llvm-svn: 276284

This adds InputSectionDescription command to represent
the input section declaration.

This leads to next cleanup:
SectionRule removed.
ScriptConfiguration::Sections mamber removed.
LinkerScript<ELFT>::getOutputSection() removed.

Differential revision: https://reviews.llvm.org/D22617

llvm-svn: 276283

The std::string is still constructed on demand. No functionality change
intended.

llvm-svn: 276282

As reported on PR26235, we don't currently make use of the VBROADCASTF128/VBROADCASTI128 instructions (or the AVX512 equivalents) to load+splat a 128-bit vector to both lanes of a 256-bit vector.

This patch enables lowering from subvector insertion/concatenation patterns and auto-upgrades the llvm.x86.avx.vbroadcastf128.pd.256 / llvm.x86.avx.vbroadcastf128.ps.256 intrinsics to match.

We could possibly investigate using VBROADCASTF128/VBROADCASTI128 to load repeated constants as well (similar to how we already do for scalar broadcasts).

Differential Revision: https://reviews.llvm.org/D22460

llvm-svn: 276281