Change a \t to spaces
Change some zero-filling memcpy to aggregate initialization
Delete redundant ArchiveName.clear() after declaration

llvm-svn: 345367

For both operands are bool, short, int, long, long long, add the following optimization.
1. 0-x == y --> x+y ==0
2. 0-x != y --> x+y != 0

Review: nemanjai
Differential Revision: https://reviews.llvm.org/D53360

llvm-svn: 345366

For both operands are bool, short, int, long, long long, add the following optimization test case.
1. 0-x == y --> x+y ==0
2. 0-x != y --> x+y != 0

Review: nemanjai
Differential Revision: https://reviews.llvm.org/D53358

llvm-svn: 345365

This reverts commit  r345357, It is wrong to create a new directory and put the test file into it. I am sorry for this.

llvm-svn: 345364

Currently, the regular expression that matches the lines of assembly for PPC LE
(ELFv2) does not work for the assembly for BE (ELFv1). This patch fixes it.

Differential revision: https://reviews.llvm.org/D53059

llvm-svn: 345363

llvm-svn: 345362

At present a v2i16 -> v2f64 convert is implemented by extracts to scalar,
scalar converts, and merge back into a vector. Use vector converts instead,
with the int data permuted into the proper position and extended if necessary.

Patch by RolandF.

Differential revision: https://reviews.llvm.org/D53346

llvm-svn: 345361

This corrects the leader for the swift names.  The encoding for 4.2 and
5.0 differ by a single bit on the second character and were swapped.

llvm-svn: 345360

llvm-svn: 345359

This fixes -DBUILD_SHARED_LIBS=on build. The dependency is similar to that of X86's.

llvm-svn: 345358

For both operands are bool, short, int, long, long long, add the following optimization test case.
1. 0-x == y --> x+y ==0
2. 0-x != y --> x+y != 0

Review: nemanjai
Differential Revision: https://reviews.llvm.org/D53358

llvm-svn: 345357

This reverts commit r345315, it was causing test failures on
sanitizer-x86_64-linux-fast.

llvm-svn: 345356

llvm-svn: 345355

Adds support for -mno-stack-arg-probe and -mstack-probe-size.

(Not really happy copy-pasting code, but that's what we do for all the
other Windows targets.)

Differential Revision: https://reviews.llvm.org/D53617

llvm-svn: 345354

Summary:
This patch makes the dominatortree recalculate when applying updates with the size of the update vector larger than a threshold. Directly applying updates is usually slower than recalculating the whole domtree in this case. This patch fixes an issue which causes JT running slowly on some inputs.

In bug 37929, the dominator tree is trying to apply 19,000+ updates several times, which takes several minutes.

After this patch, the time used by DT.applyUpdates:

| Input | Before (s) | After (s) | Speedup |
| the 2nd Reproducer in 37929 | 297 | 0.15 | 1980x |
| clang-5.0.0.0.bc | 9.7 | 4.3 | 2.26x |
| clang-5.0.0.4.bc | 11.6 | 2.6 | 4.46x |

Reviewers: kuhar, brzycki, trentxintong, davide, dmgreen, grosser

Reviewed By: kuhar, brzycki

Subscribers: kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D53245

llvm-svn: 345353

llvm-svn: 345352

This reverts r345350 and updates the test rather than removing it. Now
we check that `--g` auto-completes to `--global`.

llvm-svn: 345351

With the new `-f` option for `settings set`, `-` (dash) no longer
auto-complete to `-g`.

llvm-svn: 345350

SystemZAsmParser can now handle -debug by printing the operands neatly to the
output stream. Before this patch this lead to an llvm_unreachable().

It seems that now '-mllvm -debug' does not cause any crashes anywhere (at
least not on SPEC).

Review: Ulrich Weigand
https://reviews.llvm.org/D53328

llvm-svn: 345349

llvm-svn: 345348

In order to print the IR slot number for the memory operand, the DAG pointer
must be passed to SDNode::dump().

The isel-debug.ll test updated to also check for the IR Value reference being
printed correctly.

Review: Ulrich Weigand
https://reviews.llvm.org/D53333

llvm-svn: 345347

For the reproducer feature I need to be able to export and import the
current LLDB configuration. To realize this I've extended the existing
functionality to print settings. With the help of a new formatting
option, we can now write the settings and their values to a file
structured as regular commands.

Concretely the functionality works as follows:

  (lldb) settings export -f /path/to/file

This file contains a bunch of settings set commands, followed by the
setting's name and value.

  ...
  settings set use-external-editor false
  settings set use-color true
  settings set auto-one-line-summaries true
  settings set auto-indent true
  ...

You can import the settings again by either sourcing the file or using
the settings read command.

  (lldb) settings read -f /path/to/file

Differential revision: https://reviews.llvm.org/D52651

llvm-svn: 345346

Summary:
This adds support for LSDA (exception table) generation for wasm EH.
Wasm EH mostly follows the structure of Itanium-style exception tables,
with one exception: a call site table entry in wasm EH corresponds to
not a call site but a landing pad.

In wasm EH, the VM is responsible for stack unwinding. After an
exception occurs and the stack is unwound, the control flow is
transferred to wasm 'catch' instruction by the VM, after which the
personality function is called from the compiler-generated code. (Refer
to WasmEHPrepare pass for more information on this part.)

This patch:
- Changes wasm.landingpad.index intrinsic to take a token argument, to
make this 1:1 match with a catchpad instruction
- Stores landingpad index info and catch type info MachineFunction in
before instruction selection
- Lowers wasm.lsda intrinsic to an MCSymbol pointing to the start of an
exception table
- Adds WasmException class with overridden methods for table generation
- Adds support for LSDA section in Wasm object writer

Reviewers: dschuff, sbc100, rnk

Subscribers: mgorny, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D52748

llvm-svn: 345345

Generate the FP16FML intrinsics into arm_neon.h (AArch64 only for now).
Add two new type modifiers to NeonEmitter to handle the new prototypes.
Define __ARM_FEATURE_FP16FML when +fp16fml is enabled and guard the
intrinsics with the macro in arm_neon.h.

Based on a patch by Gao Yiling.

Differential Revision: https://reviews.llvm.org/D53633

llvm-svn: 345344

Summary: This adds support for exception handling instructions to InstPrinter.

Reviewers: dschuff, aardappel

Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D53634

llvm-svn: 345343

Handle the case where getCurrentFunction() returns nullptr by passing -1 to
printIRSlotNumber(). This will result in <badref> being printed instead of an
assertion failure.

Review: Francis Visoiu Mistrih
https://reviews.llvm.org/D53333

llvm-svn: 345342

Nodes which have only one predecessor and only one successor can not
always be hidden, even if all states are the same.
An additional condition is needed: the predecessor may have only one successor.
This can be seen on this example:

```
  A
 / \
B   C
 \ /
  D
```

Nodes B and C can not be hidden even if all nodes in the graph have the
same state.

Differential Revision: https://reviews.llvm.org/D53735

llvm-svn: 345341

Differential Revision: https://reviews.llvm.org/D53660

llvm-svn: 345340

Differential Revision: https://reviews.llvm.org/D53628

llvm-svn: 345339

Previously, OSDynamicCast was modeled as an identity.

This is not correct: the output of OSDynamicCast may be zero even if the
input was not zero (if the class is not of desired type), and thus the
modeling led to false positives.

Instead, we are doing eager state split:
in one branch, the returned value is identical to the input parameter,
and in the other branch, the returned value is zero.

This patch required a substantial refactoring of canEval infrastructure,
as now it can return different function summaries, and not just true/false.

rdar://45497400

Differential Revision: https://reviews.llvm.org/D53624

llvm-svn: 345338

Add LLVM intrinsics for the ARMv8.2-A FP16FML vector-form instructions. Add a
DAG pattern to define the indexed-form intrinsics in terms of the vector-form
ones, similarly to how the Dot Product intrinsics were implemented.

Based on a patch by Gao Yiling.

Differential Revision: https://reviews.llvm.org/D53632

llvm-svn: 345337

llvm-svn: 345336

llvm-svn: 345335

- Add llvm-mc test case (and delete the old one)
- Change report_fatal_error to assertions

llvm-svn: 345334

Summary:
Currently InstPrinter ignores if there are mismatches between block/loop
and end markers by skipping the case if ControlFlowStack is empty. I
guess it is better to explicitly error out in this case, because this
signals invalid input.

Reviewers: aardappel

Subscribers: dschuff, sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D53620

llvm-svn: 345333

Summary: Add an option to disable sorting sections with call graph profile

Reviewers: ruiu, Bigcheese, espindola

Reviewed By: Bigcheese

Subscribers: grimar, emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D53683

llvm-svn: 345332

Some lines more than 80 characters long reformatted.

llvm-svn: 345331

Thanks to Cameron DaCamara at Microsoft for letting us know what their
chosen mangling is here!

llvm-svn: 345330

Constructing a global std::map requires clang to generate a linear
amount of code to construct the initializer list if the elements are not
constexpr-constructible. std::vector is not constexpr-constructible, so
this code pattern was generating large amounts of code.

Also, because of PR38829, LLVM is pathologically slow on large basic
blocks, and this causes slow compilation. This works around the bug and
reduces code size.

SemaChecking.cpp -debug-info-kind=limited:
        time      objsize
before: 1m45.023s 9.8M
after:  0m25.205s 6.9M

So, a 42% obj size reduction and 3.2x speedup.

llvm-svn: 345329

This doesn't appear to matter for deserialization purposes, because we
always know what kind of entity (declaration or statement/expression)
we're trying to load, but it makes the llvm-bcanalyzer output a lot less
mysterious.

llvm-svn: 345328