Fixes for MUBUF_Atomic instructions to make operand list valid:
 - For RTN insns, make a copy of $vdata_in operand as $vdata.
 - Do not add operand for GLC, it is hardcoded and comes as a token.
Workaround to avoid adding multiple default optional operands.
Tests added.

Differential Revision: http://reviews.llvm.org/D20257

llvm-svn: 270049

Differential Revision: http://reviews.llvm.org/D15526

llvm-svn: 270048

llvm-svn: 270046

llvm-svn: 270041

Summary: Partially fixes PR27458

Reviewers: sdardis

Subscribers: dsanders, llvm-commits, sdardis

Differential Revision: http://reviews.llvm.org/D20330

llvm-svn: 270037

Enable "Remove Redundant LEAs" part of the LEA optimization pass for -O2.
This gives 6.4% performance improve on Broadwell on nnet benchmark from Coremark-pro.
There is no significant effect on other benchmarks (Geekbench, Spec2000, Spec2006).

Differential Revision: http://reviews.llvm.org/D19659

llvm-svn: 270036

Differential Revision: http://reviews.llvm.org/D18352

llvm-svn: 270030

[X86] Generalize and combine some similar type constraints and node types. No changes to the isel table size so the separation wasn't buying us anything.

llvm-svn: 270026

llvm-svn: 270025

llvm-svn: 270023

Transition InstrProf and Coverage over to the stricter Error/Expected
interface.

Changes since the initial commit:
- Fix error message printing in llvm-profdata.
- Check errors in loadTestingFormat() + annotateAllFunctions().
- Defer error handling in InstrProfIterator to InstrProfReader.
- Remove the base ProfError class to work around an MSVC ICE.

Differential Revision: http://reviews.llvm.org/D19901

llvm-svn: 270020

`ConstantRange::getEquivalentICmp` is more general, and better
factored.

llvm-svn: 270019

Currently only its unit test uses it, but this will be used in a later
change to simplify some logic in the GuardWidening pass.

llvm-svn: 270018

llvm-svn: 270017

llvm-svn: 270013

[AVX512] Strengthen type constraints for VFIXUPIMM patterns and combine the type constraints for vector and scalar.

llvm-svn: 270012

llvm-svn: 270011

Fix some Clang-tidy modernize-use-bool-literals and Include What You Use warnings in examples; other minor fixes.

Differential revision: http://reviews.llvm.org/D20397

llvm-svn: 270008

llvm-svn: 270007

llvm-svn: 270003

llvm-svn: 270002

This refactoring is to reduce code duplication between the 32-bit and 64-bit code paths. This refactoring will also make the special casing for other data after load commands cleaner.

llvm-svn: 270001

If the load has a pointer type, we don't want to change
its type.

llvm-svn: 270000

PredicatePassProbability is a better name for what LikelyBranchWeight
was trying to express.

llvm-svn: 269999

Summary:
Implement guard widening in LLVM. Description from GuardWidening.cpp:

The semantics of the `@llvm.experimental.guard` intrinsic lets LLVM
transform it so that it fails more often that it did before the
transform.  This optimization is called "widening" and can be used hoist
and common runtime checks in situations like these:

```
%cmp0 = 7 u< Length
call @llvm.experimental.guard(i1 %cmp0) [ "deopt"(...) ]
call @unknown_side_effects()
%cmp1 = 9 u< Length
call @llvm.experimental.guard(i1 %cmp1) [ "deopt"(...) ]
...
```

to

```
%cmp0 = 9 u< Length
call @llvm.experimental.guard(i1 %cmp0) [ "deopt"(...) ]
call @unknown_side_effects()
...
```

If `%cmp0` is false, `@llvm.experimental.guard` will "deoptimize" back
to a generic implementation of the same function, which will have the
correct semantics from that point onward.  It is always _legal_ to
deoptimize (so replacing `%cmp0` with false is "correct"), though it may
not always be profitable to do so.

NB! This pass is a work in progress.  It hasn't been tuned to be
"production ready" yet.  It is known to have quadriatic running time and
will not scale to large numbers of guards

Reviewers: reames, atrick, bogner, apilipenko, nlewycky

Subscribers: mcrosier, llvm-commits

Differential Revision: http://reviews.llvm.org/D20143

llvm-svn: 269997

Summary: Set default branch weight to 1:1 if one of the branch has profile missing when simplifying CFG.

Reviewers: spatel, davidxl

Subscribers: danielcdh, llvm-commits

Differential Revision: http://reviews.llvm.org/D20307

llvm-svn: 269995

skipFunction() is called twice.

Differential Revision: http://reviews.llvm.org/D20377

llvm-svn: 269994

 - glibc is dynamically linked, and
 - libgcc_s is unavailable (for instance, another library is being used to
   provide the compiler runtime or libgcc is statically linked), and
 - the target is x86_64.

If we run backtrace() and it fails to find any stack frames, try using
_Unwind_Backtrace instead if available.

llvm-svn: 269992

llvm-svn: 269990

Having an enum member named Default is quite confusing: Is it distinct
from the others?

This patch removes that member and instead uses Optional<Reloc> in
places where we have a user input that still hasn't been maped to the
default value, which is now clear has no be one of the remaining 3
options.

llvm-svn: 269988

isReturn() was returning different values with and without -g which led to
different code being generated. Change isFlagSettingInstruction to query
an instruction's effect on SR instead.

llvm-svn: 269986

[LoopUnrollAnalyzer] Take into account cost of instructions controlling branches, along with their operands.

Previously, we didn't add their and their operands cost, which could've
resulted in unrolling loops for no actual benefit.

llvm-svn: 269985

llvm-svn: 269977

llvm-svn: 269976

http://bb.pgr.jp/builders/msbuild-llvmclang-x64-msc19-DA/builds/553/steps/test-llvm/logs/LLVM%20%3A%3A%20ObjectYAML__MachO__load_commands.yaml

llvm-svn: 269975

llvm-svn: 269974

Use signed division otherwise all back jumps fail the check
Fixes regression introduced in r269951

Differential Revision: http://reviews.llvm.org/D20380

llvm-svn: 269972

When looking for an available spill slot, the register scavenger would stop
after finding the first one with no register assigned to it. That slot may
have size and alignment that do not meet the requirements of the register
that is to be spilled. Instead, find an available slot that is the closest
in size and alignment to one that is needed to spill a register from RC.

Differential Revision: http://reviews.llvm.org/D20295

llvm-svn: 269969

llvm-svn: 269966

llvm-svn: 269963