This is not a list of pairs, it is a hash table data structure. We now
correctly parse this out and dump it from llvm-pdbdump.

We still need to understand the conditions that lead to a type
getting an entry in the hash adjuster table.  That will be done
in a followup investigation / patch.

Differential Revision: https://reviews.llvm.org/D29090

llvm-svn: 293090

llvm-svn: 293089

Later code expects the vector loads produced to be directly
concatenable, which means we shouldn't pad anything except the last load
produced with UNDEF.

llvm-svn: 293088

Thanks to Quentin for suggesting the refactoring.

llvm-svn: 293087

I think it's a hold-over from some previous iteration, but it's never
set to true in LLVM as it exists now.

llvm-svn: 293086

Summary:
This is the first in a series of patches to add a simple, generalized updater to MemorySSA.

For MemorySSA, every def is may-def, instead of the normal must-def.
(the best way to think of memoryssa is "everything is really one variable, with different versions of that variable at different points in the program).
This means when updating, we end up having to do a bunch of work to touch defs below and above us.

In order to support this quickly, i have ilist'd all the defs for each block.  ilist supports tags, so this is quite easy. the only slightly messy part is that you can't have two iplists for the same type that differ only whether they have the ownership part enabled or not, because the traits are for the value type.

The verifiers have been updated to test that the def order is correct.

Reviewers: george.burgess.iv

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29046

llvm-svn: 293085

While at it, also remove unused command line options.

llvm-svn: 293084

Differential Revision: https://reviews.llvm.org/D29115

llvm-svn: 293083

Summary:
This patch provides a trampoline for function tail exit tracing. Still, it's staging because code `1` is passed to the handler function (indicating a normal exit) instead of `2`, which would indicate tail exit. This is so until the logging part of XRay supports tail exits too.
Related: https://reviews.llvm.org/D28947 (LLVM)

Reviewers: dberris, rengolin

Reviewed By: rengolin

Subscribers: aemerson, llvm-commits, iid_iunknown

Differential Revision: https://reviews.llvm.org/D28948

llvm-svn: 293082

According to the documentation this is supposed to be -1
if indirect calls are not supported.

llvm-svn: 293081

Summary:
This patch prepares more for tail call support in XRay. Until the logging part supports tail calls, this is just staging, so it seems LLVM part is mostly ready with this patch.
Related: https://reviews.llvm.org/D28948 (compiler-rt)

Reviewers: dberris, rengolin

Reviewed By: dberris

Subscribers: llvm-commits, iid_iunknown, aemerson

Differential Revision: https://reviews.llvm.org/D28947

llvm-svn: 293080

llvm-svn: 293079

Set LLVM_LIBRARY_OUTPUT_INTDIR as expected by llvm_setup_rpath() macro
when doing stand-alone builds. This is required to pass correct
-rpath-link when linking shared libraries, and therefore ensure that
the linker can find dependency libraries correctly during the build.

Differential Revision: https://reviews.llvm.org/D29099

llvm-svn: 293078

llvm-svn: 293077

llvm-svn: 293076

This reverts commit r293033, per Danny's comment.  In short, we require
domtrees to have roots at all times.

llvm-svn: 293075

Change getReservedRegs() to not mark a register as reserved and then
revert that decision in some cases. Motivated by the discussion in
https://reviews.llvm.org/D29056

llvm-svn: 293073

llvm-svn: 293071

This patch adds support for the proc_bind clause on the Spmd construct
'target parallel' on the NVPTX device.  Since the parallel region is created
upon kernel launch, this clause can be safely ignored on the NVPTX device at
codegen time for level 0 parallelism.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29128

llvm-svn: 293069

Summary:
Adding ARM64 as a supported architecture for Scudo.
The random shuffle is not yet supported for SizeClassAllocator32, which is used
by the AArch64 allocator, so disable the associated test for now.

Reviewers: kcc, alekseyshl, rengolin

Reviewed By: rengolin

Subscribers: aemerson, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D28960

llvm-svn: 293068

Differential Revision: https://reviews.llvm.org/D28694

llvm-svn: 293067

This has not reliably worked on powerpc since r279664.  Re-enable this
once the problem is tracked down and fixed.

llvm-svn: 293066

llvm-svn: 293065

This patch introduces guard based loop predication optimization. The new LoopPredication pass tries to convert loop variant range checks to loop invariant by widening checks across loop iterations. For example, it will convert

  for (i = 0; i < n; i++) {
    guard(i < len);
    ...
  }

to

  for (i = 0; i < n; i++) {
    guard(n - 1 < len);
    ...
  }

After this transformation the condition of the guard is loop invariant, so loop-unswitch can later unswitch the loop by this condition which basically predicates the loop by the widened condition:

  if (n - 1 < len)
    for (i = 0; i < n; i++) {
      ...
    } 
  else
    deoptimize

This patch relies on an NFC change to make ScalarEvolution::isMonotonicPredicate public (revision 293062).

Reviewed By: sanjoy

Differential Revision: https://reviews.llvm.org/D29034

llvm-svn: 293064

llvm-svn: 293063

Will be used by the upcoming LoopPredication optimization.

llvm-svn: 293062

This is a partial fix for Bug 31520 - [guards] canonicalize guards in instcombine

Reviewed By: apilipenko

Differential Revision: https://reviews.llvm.org/D29075

Patch by Maxim Kazantsev.

llvm-svn: 293061

Differential Revision: https://reviews.llvm.org/D28949

llvm-svn: 293060

Summary:
Lifetime extension wasn't triggered on the result of BuildMI because the
reference was non-const. However, instead of adding a const, I've
removed the reference entirely as RVO should kick in anyway.

Reviewers: rovka, bkramer

Reviewed By: bkramer

Subscribers: aemerson, rengolin, dberris, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D29124

llvm-svn: 293059

This is a partial fix for Bug 31520 - [guards] canonicalize guards in instcombine

Reviewed By: apilipenko

Differential Revision: https://reviews.llvm.org/D29074

Patch by Maxim Kazantsev.

llvm-svn: 293058

Include errno.h, and use size_t instead of std::size_t, since stddef.h
was included (and not cstddef).

llvm-svn: 293057

This is a partial fix for Bug 31520 - [guards] canonicalize guards in instcombine

Reviewed By: majnemer, apilipenko

Differential Revision: https://reviews.llvm.org/D29071

Patch by Maxim Kazantsev.

llvm-svn: 293056

Summary:
This presents a version of the comment reflowing with less mutable state inside
the comment breakable token subclasses. The state has been pushed into the
driving breakProtrudingToken method. For this, the API of BreakableToken is enriched
by the methods getSplitBefore and getLineLengthAfterSplitBefore.

Reviewers: klimek

Reviewed By: klimek

Subscribers: djasper, klimek, mgorny, cfe-commits, ioeric

Differential Revision: https://reviews.llvm.org/D28764

llvm-svn: 293055

These relocations are used in linux kernel.

Differential revision: https://reviews.llvm.org/D28094

llvm-svn: 293054

Canonicalize HAVE_LIBZ as well to fix buildbot failures.

llvm-svn: 293053

Use the new llvm_canonicalize_cmake_booleans() function to canonicalize
booleans for lit tests. Replace the duplicate ENABLE_CLANG* variables
used to hold canonicalized values with in-place canonicalization. Use
implicit logic in Python code to avoid overrelying on exact 0/1 values.

Differential Revision: https://reviews.llvm.org/D28529

llvm-svn: 293052

Summary: This enables the test to run on systems where output cannot be written.

Reviewers: compnerd

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D29123

llvm-svn: 293051

Prior to OpenCL 2.0, image3d_t can only be used with the write_only
access qualifier when the cl_khr_3d_image_writes extension is enabled,
see e.g. OpenCL 1.1 s6.8b.

Require the extension for write_only image3d_t types and guard uses of
write_only image3d_t in the OpenCL header.

Patch by Sven van Haastregt!

Review: https://reviews.llvm.org/D28860
llvm-svn: 293050

The thread_limit-clause on the combined directive applies to the
'teams' region of this construct. We modify the ThreadLimitClause
class to capture the clause expression within the 'target' region.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29087

llvm-svn: 293049

The num_teams-clause on the combined directive applies to the
'teams' region of this construct. We modify the NumTeamsClause
class to capture the clause expression within the 'target' region.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29085

llvm-svn: 293048