Check whether BaseCst is valid before extracting a GlobalValue.
This fixes PR24163.

Patch by David Majnemer.

llvm-svn: 242840

llvm-svn: 242839

This makes one substantive change and a few stylistic changes to the
VSX swap optimization pass.

The substantive change is to permit LXSDX and LXSSPX instructions to
participate in swap optimization computations.  The previous change to
insert a swap following a SUBREG_TO_REG widening operation makes this
almost trivial.

I experimented with also permitting STXSDX and STXSSPX instructions.
This can be done using similar techniques:  we could insert a swap
prior to a narrowing COPY operation, and then permit these stores to
participate.  I prototyped this, but discovered that the pattern of a
narrowing COPY followed by an STXSDX does not occur in any of our
test-suite code.  So instead, I added commentary indicating that this
could be done.

Other TLC:
 - I changed SH_COPYSCALAR to SH_COPYWIDEN to more clearly indicate
 the direction of the copy.
 - I factored the insertion of swap instructions into a separate
 function.

Finally, I added a new test case to check that the scalar-to-vector
loads are working properly with swap optimization.

llvm-svn: 242838

This commit refactors the function 'maybeLexGlobalValue' so that now it reuses
the function 'lexName' when lexing a named global value token.

llvm-svn: 242837

llvm-svn: 242836

llvm-svn: 242835

llvm-svn: 242834

Not every program needs this information.

In particular, it is necessary and sufficient for a static linker to scan the
section table.

llvm-svn: 242833

It will stop doing so shortly.

llvm-svn: 242832

llvm-svn: 242830

We were already passing 3 values it can get from ELFDumper.

llvm-svn: 242829

llvm-svn: 242828

Use a named lambda for readability, common some code, remove a stale comments, and use llvm style variable names.

llvm-svn: 242827

llvm-svn: 242826

llvm-svn: 242824

To be used in clang in a follow-up commit.

llvm-svn: 242823

llvm-svn: 242821

llvm-svn: 242820

module cache has been provided, rather than creating one in the current
directory.

llvm-svn: 242819

Every user now keeps track of the correct string table to use.

llvm-svn: 242818

This patch makes it possible for a performance tool that uses call stack
unwinding to map implementation-level call stacks from master and worker
threads into a unified global view. There are several components to this patch.

include/*/ompt.h.var
  Add a new enumeration type that indicates whether the code for a master task
    for a parallel region is invoked by the user program or the runtime system
  Change the signature for OMPT parallel begin/end callbacks to indicate whether
    the master task will be invoked by the program or the runtime system. This
    enables a performance tool using call stack unwinding to handle these two
    cases differently. For this case, a profiler that uses call stack unwinding
    needs to know that the call path prefix for the master task may differ from
    those available within the begin/end callbacks if the program invokes the
    master.

kmp.h
  Change the signature for __kmp_join_call to take an additional parameter
  indicating the fork_context type. This is needed to supply the OMPT parallel
  end callback with information about whether the compiler or the runtime
  invoked the master task for a parallel region.

kmp_csupport.c
  Ensure that the OMPT task frame field reenter_runtime_frame is properly set
    and cleared before and after calls to fork and join threads for a parallel
    region.
  Adjust the code for the new signature for __kmp_join_call.
  Adjust the OMPT parallel begin callback invocations to carry the extra
    parameter indicating whether the program or the runtime invokes the master
    task for a parallel region.

kmp_gsupport.c
  Apply all of the analogous changes described for kmp_csupport.c for the GOMP
    interface
  Add OMPT support for the GOMP combined parallel region + loop API to
    maintain the OMPT task frame field reenter_runtime_frame.

kmp_runtime.c:
  Use the new information passed by __kmp_join_call to adjust the OMPT
    parallel end callback invocations to carry the extra parameter indicating
    whether the program or the runtime invokes the master task for a parallel
    region.

ompt_internal.h:
  Use the flavor of the parallel region API (GNU or Intel) to determine who
    invokes the master task.

Differential Revision: http://reviews.llvm.org/D11259

llvm-svn: 242817

This removes the last uses of getStaticSymbolName in lld.

llvm-svn: 242816

Reviewers: sivachandra

Subscribers: tberghammer, danalbert, srhines, lldb-commits

Differential Revision: http://reviews.llvm.org/D11378

llvm-svn: 242815

llvm-svn: 242814

Summary:
The current Makefile scheme only allows one dylib to be specified in each make
invocation, so TestLoadUnload had a custom Makefile that's unrelated to the
base Makefile.rules. This change uses recursive make invocations to bypass the
single dylib restriction. See D11202 for more context.

Reviewers: clayborg

Subscribers: chaoren, lldb-commits

Differential Revision: http://reviews.llvm.org/D11367

llvm-svn: 242813

llvm-svn: 242812

Since the CoreFoundation allocator replacement was moved in r173134, all
implementations of this function have been empty.

Reviewers: samsonov

Differential Revision: http://reviews.llvm.org/D11375

llvm-svn: 242811

This is setup for future work planned for the AArch64 Load/Store Opt pass.

llvm-svn: 242810

The LooksLikeCodeInBug11395() codepath was returning without clearing
the ProcessedAllocas cache.

llvm-svn: 242809

llvm-svn: 242808

We insert a bitcast which obfuscates the getCalledFunction for the utility
function which looks up attributes from the called function. Loosing ABI
changing parameter attributes is a bad thing.

rdar://21516488

llvm-svn: 242807

Reviewers: Duncan P. N. Exon Smith
llvm-svn: 242806

A bit more code cleanup: delete some a trivial true assertion and supporting code, remove a redundant cast, and use count in assertions where feasible.

llvm-svn: 242805

llvm-svn: 242804

This commit extracts the code that prints out a name of an LLVM value without a
prefix from a function 'PrintLLVMName' into a publicly accessible function named
'printLLVMNameWithoutPrefix'.

This change would be useful for MIR serialization, as it would allow the MIR
printer to reuse this function to print out the names of the external symbol
machine operands.

Reviewers: Duncan P. N. Exon Smith
llvm-svn: 242803

llvm-svn: 242802

llvm-svn: 242801

llvm-svn: 242800

llvm-svn: 242799

llvm-svn: 242798