Commit Graph

10 Commits

Author SHA1 Message Date
Gheorghe-Teodor Bercea 545a9fe106 [OpenMP] Add target task alloc function with device ID
Summary: Add a new call to Clang to perform task allocation for the target.

Reviewers: ABataev, AlexEichenberger, caomhin

Reviewed By: ABataev, AlexEichenberger

Subscribers: openmp-commits, Hahnfeld, guansong, jdoerfert, cfe-commits

Tags: #clang, #openmp

Differential Revision: https://reviews.llvm.org/D63009

llvm-svn: 363451
2019-06-14 20:19:54 +00:00
Gheorghe-Teodor Bercea 66cdbb47d2 [OpenMP] Add support for registering requires directives with the runtime
Summary:
This patch adds support for the registration of the requires directives with the runtime.

Each requires directive clause will enable a particular flag to be set.

The set of flags is passed to the runtime to be checked for compatibility with other such flags coming from other object files.

The registration function is called whenever OpenMP is present even if a requires directive is not present. This helps detect cases in which requires directives are used inconsistently.

Reviewers: ABataev, AlexEichenberger, caomhin

Reviewed By: ABataev, AlexEichenberger

Subscribers: jholewinski, guansong, jfb, jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60568

llvm-svn: 361298
2019-05-21 19:42:01 +00:00
Alexey Bataev 5c4273620d [OPENMP]Improve detection of number of teams, threads in target
regions.

Added more complex analysis for number of teams and number of threads in
the target regions, also merged related common code between CGOpenMPRuntime
and CGOpenMPRuntimeNVPTX classes.

llvm-svn: 358126
2019-04-10 19:11:33 +00:00
James Y Knight f5f1b0e59e [opaque pointer types] Cleanup CGBuilder's Create*GEP.
Some of these functions take some extraneous arguments, e.g. EltSize,
Offset, which are computable from the Type and DataLayout.

Add some asserts to ensure that the computed values are consistent
with the passed-in values, in preparation for eliminating the
extraneous arguments. This also asserts that the Type is an Array for
the calls named "Array" and a Struct for the calls named "Struct".

Then, correct a couple of errors:

1. Using CreateStructGEP on an array type. (this causes the majority
   of the test differences, as struct GEPs are created with i32
   indices, while array GEPs are created with i64 indices)

2. Passing the wrong Offset to CreateStructGEP in TargetInfo.cpp on
   x86-64 NACL (which uses 32-bit pointers).

Differential Revision: https://reviews.llvm.org/D57766

llvm-svn: 353529
2019-02-08 15:34:12 +00:00
Alexey Bataev 62a4cb06a9 [OPENMP] Change linkage of offloading symbols to support dropping
offload targets.

Changed the linkage of omp_offloading.img_start.<triple> and omp_offloading.img_end.<triple> symbols from external to external weak to allow dropping of some targets during linking.

llvm-svn: 338413
2018-07-31 18:27:42 +00:00
Alexey Bataev b363813543 The patch adds support for the new map interface between clang and libomptarget. The changes in the interface are the following:
device IDs are now 64-bit integers (as opposed to 32-bit)
map flags are 64-bit long (used to be 32-bit)
mappings for partially mapped structs are now calculated at compile time and members of partially mapped structs are flagged using the MEMBER_OF field
Support for is_device_ptr on struct members was dropped - this functionality is not supported by the OpenMP standard and its implementation is technically infeasible (however, use_device_ptr on struct members works as a non-standard extension of the compiler)

llvm-svn: 337468
2018-07-19 16:34:13 +00:00
Alexey Bataev 9a70017537 [OPENMP, NVPTX] Fix linkage of the global entries.
The linkage of the global entries must be weak to enable support of
redefinition of the same target regions in multiple compilation units.

llvm-svn: 331768
2018-05-08 14:16:57 +00:00
Alexey Bataev a4fa0b880a [OPENMP] General code improvements.
llvm-svn: 330140
2018-04-16 17:59:34 +00:00
Alexey Bataev 03f270c900 [OPENMP] Added emission of offloading data sections for declare target
variables.

Added emission of the offloading data sections for the variables within
declare target regions + fixes emission of the declare target variables
marked as declare target not within the declare target region.

llvm-svn: 328888
2018-03-30 18:31:07 +00:00
Alexey Bataev f41c88fd50 [OPENMP] Add support for `depend` clauses on `target simd`.
Added codegen for `depend` clauses on `#pragma omp target simd`
directives.

llvm-svn: 322559
2018-01-16 15:05:16 +00:00