llvm-project.git, branch llvmorg-13-init

Bump the trunk major version to 13

2021-01-27T03:37:55+00:00

and clear the release notes.

Frontend: Use early returns in CompilerInstance::clearOutputFiles, NFC

2021-01-27T03:27:32+00:00

Use early returns in `CompilerInstance::clearOutputFiles` to clarify the
logic, and rename `ec` to `EC` as a drive-by.

No functionality change.

Rename clang/test/Frontend/output-{failures,paths}.c, NFC

2021-01-27T03:26:24+00:00

A follow up patch will add a few success cases here; rename it to
`output-paths.c` instead of `output-failures.c`.

[gn build] Port bb9eb1982980

2021-01-27T01:23:23+00:00

[OpenMP][NVPTX] Drop dependence on CUDA to build NVPTX `deviceRTLs`

2021-01-27T01:21:36+00:00

With D94745, we no longer use CUDA SDK to compile `deviceRTLs`. Therefore,
many CMake code in the project is useless. This patch cleans up unnecessary code
and also drops the requirement to build NVPTX `deviceRTLs`. CUDA detection is
still being used however to determine whether we need to involve the tests. Auto
detection of compute capability is enabled by default and can be disabled by
setting CMake variable `LIBOMPTARGET_NVPTX_AUTODETECT_COMPUTE_CAPABILITY=OFF`.
If auto detection is enabled, and CUDA is also valid, it will only build the
bitcode library for the detected version; otherwise, all variants supported will
be generated. One drawback of this patch is, we now generate 96 variants of
bitcode library, and totally 1485 files to be built with a clean build on a
non-CUDA system. `LIBOMPTARGET_NVPTX_COMPUTE_CAPABILITIES=""` can be used to
disable building NVPTX `deviceRTLs`.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D95466

[RISCV] Add rv64 run lines to rv32 MC layer tests for B extension

2021-01-27T01:20:05+00:00

Remove common instructions from rv64 tests since they are now
covered by the rv64 run lines in the rv32 tests.

Add rv32-only* tests for a few cases that aren't common between
r32 and rv64.

Addresses review feedback from D95150.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D95272

Support for instrumenting only selected files or functions

2021-01-27T01:13:34+00:00

This change implements support for applying profile instrumentation
only to selected files or functions. The implementation uses the
sanitizer special case list format to select which files and functions
to instrument, and relies on the new noprofile IR attribute to exclude
functions from instrumentation.

Differential Revision: https://reviews.llvm.org/D94820

[libc++] Give `MoveOnly` all six comparison operators, not just == and <.

2021-01-27T00:42:00+00:00

Split out of D93512.

[OpenMP] Modify OMP_ALLOCATOR environment variable

2021-01-27T00:27:39+00:00

This patch sets the def-allocator-var ICV based on the environment variables
provided in OMP_ALLOCATOR. Previously, only allowed value for OMP_ALLOCATOR
was a predefined memory allocator. OpenMP 5.1 specification allows predefined
memory allocator, predefined mem space, or predefined mem space with traits in
OMP_ALLOCATOR. If an allocator can not be created using the provided environment
variables, the def-allocator-var is set to omp_default_mem_alloc.

Differential Revision: https://reviews.llvm.org/D94985

[libomptarget][cuda] Handle missing _v2 symbols gracefully

2021-01-27T00:22:29+00:00

[libomptarget][cuda] Handle missing _v2 symbols gracefully

Follow on from D95367. Dlsym the _v2 symbols if present, otherwise use the
unsuffixed version. Builds a hashtable for the check, can revise for zero
heap allocations later if necessary.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D95415