This feature makes it easy to tune FileCheck diagnostic output when
running the test suite via ninja, a bot, or an IDE.  For example:

```
$ FILECHECK_OPTS='-color -v -dump-input-on-failure' \
  LIT_FILTER='OpenMP/for_codegen.cpp' ninja check-clang \
  | less -R
```

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D53517

llvm-svn: 346272

llvm-svn: 346271

llvm-svn: 346270

Instead of iterating over the leaves to find repeated substrings, and walking
collecting leaf children when we don't necessarily need them, let's just
calculate what we need and iterate over that.

By doing this, we don't have to save every leaf. It's easier to read the code
too and understand what's going on.

The goal here, at the end of the day, is to set up to allow us to do something
like

for (RepeatedSubstring &RS : ST) {
 ... do stuff with RS ...
}

Which would let us perform the cost model stuff and the repeated substring
query at the same time.

llvm-svn: 346269

llvm-svn: 346268

Add this option for debugging and providing workaround.

By default it is off so no behavior change in backend.

Differential Revision: https://reviews.llvm.org/D54158

llvm-svn: 346267

Instead, advance the old-fashioned way, as std::next() cannot be used on an input iterator until C++17.

llvm-svn: 346266

Summary:
Some CPUID leafs depend on the value of ECX as well as EAX, but we left
it uninitialized.

Originally reported as https://crbug.com/901547

Reviewers: craig.topper, hans

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D54171

llvm-svn: 346265

compiler-rt/lib/dfsan/dfsan.cc:426:3: error: call to 'InitializePlatformEarly' is ambiguous
  InitializePlatformEarly();
  ^~~~~~~~~~~~~~~~~~~~~~~
compiler-rt/lib/dfsan/../sanitizer_common/sanitizer_common.h:901:6: note: candidate function
void InitializePlatformEarly();
     ^
compiler-rt/lib/dfsan/dfsan.cc:391:13: note: candidate function
static void InitializePlatformEarly() {
            ^

llvm-svn: 346264

llvm-svn: 346263

This speeds up process startup and teardown and also reduces lock contention when running multiple ASanified/TSanified processes simultaneously. Should greatly improve lit testing time.

Differential Revision: https://reviews.llvm.org/D48445

llvm-svn: 346262

Summary:
The NotEligibleToImport flag on the GlobalValueSummary was set if it
isn't legal to import (e.g. because it references unpromotable locals)
and when it can't be inlined (in which case importing is pointless).

I split out the inlinable piece into a separate flag on the
FunctionSummary (doesn't make sense for aliases or global variables),
because in the future we may want to import for reasons other than
inlining.

Reviewers: davidxl

Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, arphaman, llvm-commits

Differential Revision: https://reviews.llvm.org/D53345

llvm-svn: 346261

llvm-svn: 346260

[X86] Add custom promotion of v2i8/v2i16 fp_to_sint to avoid over promotion to v2i64 which would force scalarization.

llvm-svn: 346259

Subscribers: kubamracek, krytarowski, fedor.sergeev, llvm-commits

Differential Revision: https://reviews.llvm.org/D54163

llvm-svn: 346258

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D54165

llvm-svn: 346257

The lowering for a call to eh_typeid_for changes when it's moved from
one function to another.

There are several proposals for fixing this issue in llvm.org/PR39545.
Until some solution is in place, do not allow CodeExtractor to extract
calls to eh_typeid_for, as that results in serious miscompilations.

llvm-svn: 346256

When CodeExtractor moves instructions to a new function, debug
intrinsics referring to those instructions within the parent function
become invalid.

This results in the same verifier failure which motivated r344545, about
function-local metadata being used in the wrong function.

llvm-svn: 346255

Change the type in a couple of lists and sets that only store physical
registers from unsigned to MCPhysRegs. The later is only 16bits and
saves us a bit of memory.

llvm-svn: 346254

llvm-svn: 346253

SmallVector was changed to store a begin and a size rather than a
begin and an end a while back. Update the formatter to look at the
correct members.

llvm-svn: 346252

It was causing a crash because we were trying to get the definition
of a target register. Fixed the issue by adding a check and added
a test case for that.

llvm-svn: 346251

Non-GNU environments don't have __finite_*, so treat them as
unavailable.

Differential Revision: https://reviews.llvm.org/D51282

llvm-svn: 346250

llvm-svn: 346249

Used for WebAssembly threads proposal. Add a flag --shared-memory
which sets the IS_SHARED bit in WasmLimits

Differential Revision: https://reviews.llvm.org/D54130

llvm-svn: 346248

llvm-svn: 346247

Support the IS_SHARED bit in the memory limits flag word.
The compiler does not create object files with memory definitions,
but the field is used by the linker.

Differential Revision: https://reviews.llvm.org/D54131

llvm-svn: 346246

llvm-svn: 346245

llvm-svn: 346244

llvm-svn: 346243

llvm-svn: 346242

llvm-svn: 346241

llvm-svn: 346240

llvm-svn: 346239

llvm-svn: 346238

This patch disables exceptions in Microsoft STL when exception 
handling is not enabled in Benchmark project. It fixes Windows 
builds that were failing due to C4530 warnings thrown by MS STL.

Differential Revision: https://reviews.llvm.org/D52998

llvm-svn: 346237

Also, remove some stale FIXME comments ( rL346234 ).

llvm-svn: 346236

llvm-svn: 346235

This is another part of solving PR39475:
https://bugs.llvm.org/show_bug.cgi?id=39475

This might be enough to fix that particular issue, but as noted
with the FIXME, we're still dropping FMF on other folds around here.

llvm-svn: 346234

Summary:
Now that llvm demangler supports more generic customization, we can
implement type substitution directly on top of this API. This will allow
us to remove the specialized hooks which were added to the demangler to
support this use case.

Reviewers: sgraenitz, erik.pilkington, JDevlieghere

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D54074

llvm-svn: 346233