Use both LLDB- and LLVM-specific tool/library directories when LLDB is
being built stand-alone. This ensures that the freshly-built tools
(and libraries) are used correctly.

Without this patch, the test suite uses LLVM_TOOLS_DIR and LLVM_LIBS_DIR
to locate lldb, and set PATH and LD_LIBRARY_PATH. When doing
a stand-alone build, these variables represent the installed LLVM.
As a result, tests either fail due to missing lldb executable
or use an earlier installed LLDB version rather than the one being
built.

To solve this, additional LLDB_TOOLS_DIR and LLDB_LIBS_DIR variables
are added and populated using LLVM_*_OUTPUT_INTDIR. Those variables
contain directories used to output built executables and libraries.
In stand-alone builds, they represent the build-tree directories
used by LLDB. In integrated builds, they have the same values as
LLVM_*_DIR and therefore using them does not harm.

The new variables are prepended to PATH and LD_LIBRARY_PATH to ensure
that freshly built binaries are preferred over potentially earlier
installed ones. Furthermore, paths used to locate various tools are
updated to match appropriate locations.

Differential Revision: https://reviews.llvm.org/D29985

llvm-svn: 295621

Inline the addCompilerRT call to the single caller.  NFC.

llvm-svn: 295620

[AVX-512] Remove AddedComplexity from masked operations. The size of the patterns already increases their priority.

llvm-svn: 295619

llvm-svn: 295618

llvm-svn: 295617

[AVX-512] Disable peephole optimizations on the VPTERNLOG commute test. Add new patterns to enable isel to fold the loads on it own.

llvm-svn: 295616

llvm-svn: 295615

llvm-svn: 295614

Replaces existing approach that could only search BUILD_VECTOR nodes.

Requires getTargetConstantBitsFromNode to discriminate cases with all/partial UNDEF bits in each element - this should also be useful when we get around to supporting getTargetShuffleMaskIndices with UNDEF elements. 

llvm-svn: 295613

This uses a SDNodeXForm to swizzle the appropriate immediate bits to allow this to be matched.

llvm-svn: 295612

[AVX-512] Add test cases that show failure to select masked VPTERNLOG when a select is used to force the passthru operand to be not operand 0.

llvm-svn: 295611

Patch by Stefan Kempf.

llvm-svn: 295610

We can't support stack-protector on NVPTX because NVPTX doesn't expose a
stack to the compiler!

Fixes PR32009.

llvm-svn: 295609

As discussed on D27692, this permits another domain to be used to combine a shuffle at high depths.

We currently set the required depth at 4 or more combined shuffles, this is probably too high for most targets but is a good starting point and already helps avoid a number of costly variable shuffles.

llvm-svn: 295608

llvm-svn: 295607

Relax the INSERTPS/SHUFPS/SHUFPD combines to support integer inputs if permitted.

llvm-svn: 295606

Differential Revision: https://reviews.llvm.org/D30096

llvm-svn: 295605

Add the infrastructure to flag whether float and/or int domains are permitable.

A future patch will enable domain crossing based off shuffle depth and the value types of the source vectors.

llvm-svn: 295604

llvm-svn: 295603

The instructions are marked commutable, but without special handling we don't get the immediate correct.

While here also remove the masked memory forms that aren't commutable.

llvm-svn: 295602

[AVX-512] Add patterns to show missed opportunities for folding vpternlog with broadcast loads. Also demonstrates a bug in the commuting of broadcast vpternlog instructions when we are able to select them.

llvm-svn: 295601

llvm-svn: 295600

llvm-svn: 295599

llvm-svn: 295598

Which, in turn, causes build bots to fail that have it unexpectedly passing. So remove debugcounter.ll for now

llvm-svn: 295597

llvm-svn: 295596

llvm-svn: 295595

llvm-svn: 295594

Summary:

We have support for bisection, and bugpoint can reduce testcases
often to a single pass. But that doesn't help reduce it to a single
transform by a single pass.  Which debug counting lets us do.

Debug counting lets you instrument a pass so that it only executes a
certain thing (rwhatever you want) after skipping it a certain time of
times, and then only does a certain number of executions before saying
"skip" again.

To make it concrete, for predicateinfo, if i instrument use renaming,
i can make it so it skips renaming the first N uses, renames the next
N, and then skips the rest.

This lets you narrow down a miscompilation to, often, a single
transformation, and then also debug it (by using the same command line
parameters).

Reviewers: chandlerc, davide, mehdi_amini

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D29998

llvm-svn: 295593

llvm-svn: 295592

llvm/test/CodeGen/AMDGPU/r600.alu-limits.ll should require +Asserts. This would run into infinite loop anyways with -Asserts.

llvm-svn: 295591

Behavior races on ErrorCount. If the enqueued paths are evaluated
eagerly (in enqueuePath) then the behavior is as the test expects. But
they may not be evaluated until the future is waited on, in run() -
which is after the early return/exit on ErrorCount. (this causes the
test to fail (because in the "/ERRORCOUNT:XYZ" test, no other errors
are printed), at least for me, on linux)

This reverts commit r295507.

llvm-svn: 295590

[X86] Remove patterns for MOVSD with v4i32 types. We don't appear to really need them and if we do we should just use a bitcast to a 64-bit element type.

llvm-svn: 295589

llvm-svn: 295588

llvm-svn: 295587

gcc only allows you to mix enums / ints if they have the same signedness.

llvm-svn: 295586

llvm-svn: 295585

llvm-svn: 295584

Summary: This begins using the predicateinfo pass in NewGVN.

Reviewers: davide

Subscribers: llvm-commits, Prazek

Differential Revision: https://reviews.llvm.org/D29682

llvm-svn: 295583

shouldSwapOperands to be correct.

llvm-svn: 295582