Commit Graph

10 Commits

Author SHA1 Message Date
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Yaxun Liu fb17bf60dd [AMDGPU] Change enqueue kernel handle type
Currently the handle type is a global pointer which holds 8 bytes.
We need a larger type which hold 16 bytes, therefore change it
to [i64 x 2].

Differential Revision: https://reviews.llvm.org/D48094

llvm-svn: 334625
2018-06-13 17:31:51 +00:00
Nicola Zaghen d34e60ca85 Rename DEBUG macro to LLVM_DEBUG.
The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
- Manual change to APInt
- Manually chage DOCS as regex doesn't match it.

In the transition period the DEBUG() macro is still present and aliased
to the LLVM_DEBUG() one.

Differential Revision: https://reviews.llvm.org/D43624

llvm-svn: 332240
2018-05-14 12:53:11 +00:00
Adrian Prantl 5f8f34e459 Remove \brief commands from doxygen comments.
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

llvm-svn: 331272
2018-05-01 15:54:18 +00:00
Yaxun Liu 9381ae9791 [AMDGPU] Fix lowering enqueue_kernel
Two issues were fixed:

runtime has difficulty to allocate memory for an external symbol of a
kernel and set the address of the external symbol, therefore make the runtime
handle of an enqueued kernel an ordinary global variable. Runtime only needs
to store the address of the loaded kernel to the handle and has verified
that this approach works.

handle the situation where __enqueue_kernel* gets inlined therefore
the enqueued kernel may be used through a constant expr instead
of an instruction.

Differential Revision: https://reviews.llvm.org/D45187

llvm-svn: 329815
2018-04-11 14:46:15 +00:00
Yaxun Liu a99e7d8e44 [AMDGPU] Fix lowering enqueue kernel when kernel has no name
Since the enqueued kernels have internal linkage, their names may be dropped.
In this case, give them unique names __amdgpu_enqueued_kernel or
__amdgpu_enqueued_kernel.n where n is a sequential number starting from 1.

Differential Revision: https://reviews.llvm.org/D44322

llvm-svn: 327291
2018-03-12 16:34:06 +00:00
Yaxun Liu 46439e8d4a [AMDGPU] Fix lowering OpenCL enqueue_kernel
One addrspacecast disappeared in clang emitted IR for
block invoke function due to adoption of the new
addr space mapping.

Differential Revision: https://reviews.llvm.org/D43785

llvm-svn: 326806
2018-03-06 16:04:39 +00:00
Konstantin Zhuravlyov 435151ad75 AMDGPU: Fix set but not used warnings related to AMDGPUAS
Differential Revision: https://reviews.llvm.org/D39499

llvm-svn: 317114
2017-11-01 19:12:38 +00:00
Yaxun Liu c928f2a6d4 [AMDGPU] Emit metadata for hidden arguments for kernel enqueue
Identifies kernels which performs device side kernel enqueues and emit
metadata for the associated hidden kernel arguments. Such kernels are
marked with calls-enqueue-kernel function attribute by
AMDGPUOpenCLEnqueueKernelLowering pass and later on
hidden kernel arguments metadata HiddenDefaultQueue and
HiddenCompletionAction are emitted for them.

Differential Revision: https://reviews.llvm.org/D39255

llvm-svn: 316907
2017-10-30 14:30:28 +00:00
Yaxun Liu de4b88d9a1 [AMDGPU] Lower enqueued blocks and generate runtime metadata
This patch adds a post-linking pass which replaces the function pointer of enqueued
block kernel with a global variable (runtime handle) and adds
runtime-handle attribute to the enqueued block kernel.

In LLVM CodeGen the runtime-handle metadata will be translated to
RuntimeHandle metadata in code object. Runtime allocates a global buffer
for each kernel with RuntimeHandel metadata and saves the kernel address
required for the AQL packet into the buffer. __enqueue_kernel function
in device library knows that the invoke function pointer in the block
literal is actually runtime handle and loads the kernel address from it
and puts it into AQL packet for dispatching.

This cannot be done in FE since FE cannot create a unique global variable
with external linkage across LLVM modules. The global variable with internal
linkage does not work since optimization passes will try to replace loads
of the global variable with its initialization value.

Differential Revision: https://reviews.llvm.org/D38610

llvm-svn: 315352
2017-10-10 19:39:48 +00:00