broken by r298058.

llvm-svn: 298061

llvm-svn: 298060

Summary:
Fixed erroneously flagging of chained if statements when styled like this:

```
if (cond) {
}
else if (cond) {
}
else {
}
```

Reviewers: xazax.hun, alexfh

Reviewed By: xazax.hun, alexfh

Subscribers: JDevlieghere, cfe-commits

Patch by Florian Gross!

Differential Revision: https://reviews.llvm.org/D30841

llvm-svn: 298059

Summary:
These classes existed only because of the GetName() static function,
which can be moved to a more natural place anyway. I move the linux
version to NativeProcessLinux (and get rid of ProcFileReader), the
freebsd version to ProcessFreeBSD (and fix a bug where it was using the
current process ID, instead of the inferior pid), and remove the NetBSD
version (which was probably incorrect anyway, as it assumes the current
process instead of the inferior.

I also add an llgs test to that verifies thread names are read
correctly.

Reviewers: zturner, krytarowski, emaste

Subscribers: lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D30981

llvm-svn: 298058

llvm-svn: 298057

Fixing triple format in the tests added for the branch label fix for Thumb
Targets. Also recommitting previously approved patch, see
https://reviews.llvm.org/D30943.

Reviewed by: samparker

Differential Revision: https://reviews.llvm.org/D30987

llvm-svn: 298056

Patch to fix lld tests after my llvm-objdump patch to fix branch labels for
Thumb targets.

Reviewed by: emaste

Differential Revision: https://reviews.llvm.org/D30986

llvm-svn: 298055

In subsequent changes we will make Polly a little bit more lazy in adding
parameter dimensions to different sets. As a result, not all parameters will
always be part of the parameter space. This change ensures that we do not use
the '-1' returned when a parameter dimension cannot be found, but instead
just do not try to eliminate the anyhow non-existing dimension.

llvm-svn: 298054

Since several years, isl can perform most operations on sets with differing
parameter spaces, by expanding the parameter space on demand relying using
named isl ids to distinguish different parameter dimensions.

By not always expanding to full dimensionality the set remain smaller and can
likely be operated on faster. This change by itself did not yet result in
measurable performance benefits, but it is a step into the right direction
needed to ensure that subsequent changes indeed can work with lower-dimensional
sets and these sets do not get blown up by accident when later intersected with
the domain context.

llvm-svn: 298053

This fixes http://llvm.org/PR32221.

llvm-svn: 298052

[AVX-512] Make VEX encoded FMA instructions available when AVX512 is enabled regardless of whether +fma was added on the command line.

We weren't able to handle isel of the 128/256-bit FMA instructions when AVX512F was enabled but VLX and FMA weren't.

I didn't mask FeatureAVX512 imply FeatureFMA as I wasn't sure I wanted disabling FMA to also disable AVX512. Instead we just can't prevent FMA instructions if AVX512 is enabled.

Another option would be to promote 128/256-bit to 512-bit, do the operation and extract it. But that requires a lot of extra isel patterns. Since no CPUs exist that support AVX512, but not FMA just using the VEX instructions seems better.

llvm-svn: 298051

llvm-svn: 298050

New SystemZ tests for the improved codegen of vector compare and select,
including cases with a logical combination of two compares.

Review: Ulrich Weigand.
https://reviews.llvm.org/D29489

llvm-svn: 298049

Extend script for auto-generating CHECK lines so that it works for SystemZ.

This is a pre-commit for the new tests resulting from
https://reviews.llvm.org/D29489

llvm-svn: 298048

If one of the subregs of the 128 bit reg is undefined when splitMove() splits
a store into two instructions, a use of an undefined physical register
results.

To remedy this, an implicit use of the super register is added onto both new
instructions, along with propagated kill and undef flags.

This was discovered with llvm-stress, and that test case is attached as
test/CodeGen/SystemZ/splitMove_undefReg_mverifier.ll

Thanks to Matthias Braun for helping with a nice explanation.

Review: Ulrich Weigand
llvm-svn: 298047

[AVX-512] Give priority to EVEX encoded scalar FMA instructions when we have FMA, AVX512 and no VLX.

We were giving priority if VLX was enabled.

llvm-svn: 298046

[X86] Use update_llc_test_checks.py to regenerate a test and add command lines to demonstrate that we don't pick EVEX encoded instruction when AVX512 and FMA3 are both enabled.

This bug only exists on the scalar llvm.fma instrinsics. Looks like we don't test the llvm.fma intrinsics very thoroughly. In fact I don't see any tests for the vector versions.

llvm-svn: 298045

llvm-svn: 298044

This makes the values a little more consistent between similar instruction and reduces the values some. This results in better grouping in the isel table saving a few bytes.

llvm-svn: 298043

[AVX-512] Change the input type for some load intrinsics to take void type like the spec (and the test cases say).

llvm-svn: 298042

[AVX-512] Fix test cases that were using the builtins directly without typecasts instead of the intrinsic header.

llvm-svn: 298041

[AVX-512] Add missing typecasts and parentheses to _mm512_mask_i64gather_ps. My macro cleanup script I used on the others last year must have missed it.

llvm-svn: 298040

Fixes a build break when using clang-3.9.1 (reported upstream,
post-commit review of D30850).

llvm-svn: 298039

llvm-svn: 298038

Fixes http://llvm.org/PR32313

llvm-svn: 298037

This patch causes us to use pruneCache() to prune the ThinLTO cache after
completing LTO. A new flag --thinlto-cache-policy allows users to configure
the policy.

Differential Revision: https://reviews.llvm.org/D31021

llvm-svn: 298036

llvm-svn: 298035

The MSVC linker doesn't support them.

Differential Revision: https://reviews.llvm.org/D31067

llvm-svn: 298034

The Archive object owns the memory buffers of any thin archive members, so we
need to make sure the object is still in scope when we access archive members.

Differential Revision: https://reviews.llvm.org/D31066

llvm-svn: 298033

llvm-svn: 298032

Summary:
Tracking issue: https://github.com/google/oss-fuzz/issues/331


Reviewers: kcc

Reviewed By: kcc

Differential Revision: https://reviews.llvm.org/D30940

llvm-svn: 298031

llvm-svn: 298030

This broke GreenDragon:
http://lab.llvm.org:8080/green/job/clang-stage1-configure-RA_check/29210/

llvm-svn: 298029

We were not handling getelemenptr instructions of vector type before.
Since getelemenptr instructions for vector types follow the same rule as
getelementptr instructions for non-vector types, we can just handle them
in the same way.

llvm-svn: 298028

[Serialization] Follow-up to r297972, deserialize name/loc in separate statements to make sure they deserialize in defined order.

This should fix the windows bots.

llvm-svn: 298027

For some reason this is causing ANSI color codes to be printed
even when run through FileCheck.

llvm-svn: 298026

- This fixes a bug where subregister incompatible with the vregs register
  class where used.
- Implement the case where multiple copies are necessary to cover a
  given lanemask.

Differential Revision: https://reviews.llvm.org/D30438

llvm-svn: 298025

This fixes two problems when VirtRegMap encounters bundles:

- When substituting a vreg subregister def with an actual register the
  internal read flag must be cleared.
- Removing an identity COPY from a bundle needs to use
  removeFromBundle() and a newly introduced function to update
  SlotIndexes.

No testcase here, because none of the in-tree targets trigger this,
however an upcoming commit of mine will need this and the testcase there
will trigger this.

Differential Revision: https://reviews.llvm.org/D30925

llvm-svn: 298024

associated command line options and functions - it's currently unused
in all of llvm and clang other than being set and reset.

llvm-svn: 298023

unused anywhere in llvm.

llvm-svn: 298022