Differential Revision: https://reviews.llvm.org/D29318

llvm-svn: 294440

Summary: With a growing suite of comment-related tests, it makes sense to take them out of the main test file. No functional changes.

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek, mgorny

Differential Revision: https://reviews.llvm.org/D29713

llvm-svn: 294439

Add an #if that excludes the newly added aeabi* tests on non-ARM
platforms. This is consistent with other ARM tests, and aims to make
running builtin tests easier. Lacking a proper infrastructure to run
tests selectively, it is more convenient if we do not have to implement
directory-platform exclusions and can just rely on tests compiling to
no-op on other platforms.

Differential Revision: https://reviews.llvm.org/D29708

llvm-svn: 294438

This patch checks the number of operands in the resulting
instruction instead of just the alias, then skips over
tied operands when generating the printing method.

This allows us to generate the preferred assembly syntax
for the AArch64 'ins' instruction, which should always be
displayed as 'mov' according to the ARMARM.

Several unit tests have changed as a result, but only to
reflect the preferred disassembly.

Some other InstAlias patterns (movk/bic/orr) needed a
slight adjustment to stop them becoming the default
and breaking other unit tests.

Patch by Graham Hunter.

Differential Revision: https://reviews.llvm.org/D29219

llvm-svn: 294437

llvm-svn: 294436

Summary:
Make the comment alignment respect sections of line comments originally alinged
with the next token. Until now the decision how to break a continuous sequence
of line comments into sections was taken without reference to the next token.

source:
```
class A {
public: // comment about public
  // comment about a
  int a;
}
```

format before:
```
class A {
public: // comment about public
        // comment about a
  int a;
}
```

format after:
```
class A {
public: // comment about public
  // comment about a
  int a;
}
```

Reviewers: djasper, klimek

Reviewed By: klimek

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D29626

llvm-svn: 294435

There are about 3 underlying bugs causing the tests to fail.

On top of that, some tests just we're 'generic' enough. i.e. 32-bit
registers.

llvm-svn: 294434

Summary:
Enables source location in diagnostic messages from the backend.  This
is after parsing, during finalization.  This requires the SourceMgr, the
inline assembly string buffer, and DiagInfo to still be alive after
EmitInlineAsm returns.

This patch creates a single SourceMgr for inline assembly inside the
AsmPrinter.  MCContext gets a pointer to this SourceMgr.  Using one
SourceMgr per call to EmitInlineAsm would make it difficult for
MCContext to figure out in which SourceMgr the SMLoc is located, while a
single SourceMgr can figure it out if it has multiple buffers.

The Str argument to EmitInlineAsm is copied into a buffer and owned by
the inline asm SourceMgr.  This ensures that DiagHandlers won't print
garbage.  (Clang emits a "note: instantiated into assembly here", which
refers to this string.)

The AsmParser gets destroyed before finalization, which means that the
DiagHandlers the AsmParser installs into the SourceMgr will be stale.
Restore the saved DiagHandlers.

Since now we're using just one SourceMgr for multiple inline asm
strings, we need to tell the AsmParser which buffer it needs to parse
currently.  Hand a buffer id -- returned from SourceMgr::
AddNewSourceBuffer -- to the AsmParser.

Reviewers: rnk, grosbach, compnerd, rengolin, rovka, anemet

Reviewed By: rnk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29441

llvm-svn: 294433

OUTPUT_ARCH command can contain architecture values separated with ":", like:
OUTPUT_ARCH(i386:x86-64)

We did not support that, because got 3 lexer tokens here after recent changes.

This trivial patch fixes the issue, now whole expression inside 
OUTPUT_ARCH is just ignored.

Differential revision: https://reviews.llvm.org/D29640

llvm-svn: 294432

Filesystems are not required to maintain a hard link count consistent
with number of subdirectories. For example, on btrfs all directories
have nlink==1. Account for that in the test.

Differential Revision: https://reviews.llvm.org/D29706

llvm-svn: 294431

Disassembly currently begins from addresses obtained from the objects
symbol table. For ELF, add the dynamic symbols to the list if no
static symbols are available so that we can more successfully
disassemble stripped binaries.

Differential Revision: https://reviews.llvm.org/D29632

llvm-svn: 294430

Addressing post commit comments,
it do nothing relative with orphans.

llvm-svn: 294429

This test is under 'ArgumentPromotion' but there are no arguments that
get promoted in the test case, so there seems to be no point. Also,
there are no assertions about the output at all, so this seems like
something we should just delete given the low value.

llvm-svn: 294428

A previous change seems to have remove #includes from header files. This
fixes the build.

llvm-svn: 294427

renaming things to at least have somewhat spelled out names, and even
have meaningful names where I could guess at what they should be.

Also add FileCheck assertions that we're actually doing what we set out
to do for some of the tests, for example not promoting a type that would
result in infinite promotion.

llvm-svn: 294426

Differential Revision: https://reviews.llvm.org/D29628

llvm-svn: 294425

[X86] Add -mprefetchwt1/-mno-prefetchwt1 command line options and __PREFETCHWT1__ define to match gcc.

llvm-svn: 294424

llvm-svn: 294423

have nice CHECK patterns instead of relying on a coarse 'not grep'
check. Sorry that I missed this the first time through.

llvm-svn: 294422

already there, just waiting to, well, be checked. =]

llvm-svn: 294421

[X86] Update command line documentation for -mclwb and -mmovbe which I forgot in my previous commits.

llvm-svn: 294420

llvm-svn: 294419

Subscribers: jaydeep, bhushan, lldb-commits, slthakur
llvm-svn: 294418

llvm-svn: 294417

In the future, we should also add a clwb intrinsic to the backend, a frontend builtin, and an instrinsic header file.

llvm-svn: 294416

Reviewers: labath, clayborg

Subscribers: jaydeep, bhushan, lldb-commits, slthakur

Differential Revision: https://reviews.llvm.org/D29215

llvm-svn: 294415

This feature flag indicates that the processor has support for removing certain instructions from user mode software. But the feature flag by itself doesn't indicate if the support is enabled in the OS. The affected instructions aren't even instructions the compiler would emit. So I don't think think this feature flag should be in the compiler.

llvm-svn: 294414

llvm-svn: 294413

It doesn't make any sense to pass in to what is supposed to be parsing
the call, and this can be inferred from the pointer output.

llvm-svn: 294412

llvm-svn: 294411

llvm-svn: 294410

Add support for weak hooks on Windows, as we do on Linux and Darwin.
As we use the macro: `SANITIZER_INTERFACE_WEAK_DEF()` it was not necessary to
modify the header file: `sanitizer_common_interceptors.h`.

After this diff, many tests were fixed for libFuzzer.

Differential Revision: https://reviews.llvm.org/D29562

llvm-svn: 294409

llvm-svn: 294408

[X86] Add test for clflushopt intrinsic and only enable it to be selected if the feature flag is set.

llvm-svn: 294407

[X86] Remove the VMFUNC feature flag. It was only partially implemented and we have no support for codegening vmfunc instructions today.

If that support ever gets added, the full feature flag support should come along with it.

llvm-svn: 294406

[X86] Remove PCOMMIT instruction support since Intel has deprecated this instruction with no plans to release products with it.

Intel's documentation for the deprecation https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction

llvm-svn: 294405

llvm-svn: 294404

[X86] Remove PCOMMIT feature support since Intel has deprecated this instruction with no plans to release products with it.

Intel's documentation for the deprecation https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction

llvm-svn: 294403

Summary:
This teaches clang how to parse and lower the 'interrupt' and 'naked'
attributes.

This allows interrupt signal handlers to be written.

Reviewers: aaron.ballman

Subscribers: malcolm.parsons, cfe-commits

Differential Revision: https://reviews.llvm.org/D28451

llvm-svn: 294402

Add a warning for shadowed variables across records.  Referencing a
shadow'ed variable may not give the desired variable.  Add an optional
warning for the shadowing.

Patch by James Sun!

llvm-svn: 294401