Commit Graph

8 Commits

Author SHA1 Message Date
Alexey Bataev 4da33cdc63 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)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@337468 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-19 16:34:13 +00:00
Alexey Bataev 68d230359a [OPENMP] Support for -fopenmp-simd option with compilation of simd loops
only.

Added support for -fopenmp-simd option that allows compilation of
simd-based constructs without emission of OpenMP runtime calls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321560 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-29 18:07:07 +00:00
Alexey Bataev 8ea73c59c0 [OPENMP] Add codegen for target data constructs with `nowait` clause.
Added codegen for the `nowait` clause in target data constructs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320717 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-14 17:00:17 +00:00
George Rokos 5b67a0bae4 [Clang][OpenMP] New clang/libomptarget map interface: new function signatures, clang-side
This clang patch changes the __tgt_* API function signatures in preparation for the new map interface.
Changes are: Device IDs 32bits --> 64bits, Flags 32bits --> 64bits

Differential revision: https://reviews.llvm.org/D40281



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318789 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-21 18:25:12 +00:00
Alexey Bataev afca04ace5 [OPENMP][DEBUG] Generate second function with correct arg types.
Currently, if the some of the parameters are captured by value, this
argument is converted to uintptr_t type and thus we loosing the debug
info about real type of the argument (captured variable):
```
void @.outlined_function.(uintptr %par);

...
%a = alloca i32
%a.casted = alloca uintptr
%cast = bitcast uintptr* %a.casted to i32*
%a.val = load i32, i32 *%a
store i32 %a.val, i32 *%cast
%a.casted.val = load uintptr, uintptr* %a.casted
call void @.outlined_function.(uintptr %a.casted.val)
...
```

To resolve this problem, in debug mode a speciall external wrapper
function is generated, that calls the outlined function with the correct
parameters types:
```
void @.wrapper.(uintptr %par) {
  %a = alloca i32
  %cast = bitcast i32* %a to uintptr*
  store uintptr %par, uintptr *%cast
  %a.val = load i32, i32* %a
  call void @.outlined_function.(i32 %a)
  ret void
}
void @.outlined_function.(i32 %par);

...
%a = alloca i32
%a.casted = alloca uintptr
%cast = bitcast uintptr* %a.casted to i32*
%a.val = load i32, i32 *%a
store i32 %a.val, i32 *%cast
%a.casted.val = load uintptr, uintptr* %a.casted
call void @.wrapper.(uintptr %a.casted.val)
...
```

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306697 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-29 16:43:05 +00:00
Samuel Antao 908ddc5280 [OpenMP] Use fopenmp prefix for all options introduced by the offloading implementation.
Summary: This patch changes the options used by offloading to start with -fopenmp instead of -fomp. This makes the option naming more consistent and materializes a suggestion by Richard Smith in http://reviews.llvm.org/D9888.

Reviewers: hfinkel, carlo.bertolli, arpith-jacob, ABataev

Subscribers: kkwli0, cfe-commits, caomhin

Differential Revision: http://reviews.llvm.org/D21841

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@274283 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-30 21:22:08 +00:00
Samuel Antao 42720cb0ac [OpenMP] Adjust map type bits according to latest spec and use zero size array sections for pointers.
Summary: This patch changes the bits used to specify the map types according to the latest version of the libomptarget document and add the support for zero size array section when pointers are being implicitly mapped. This completes the missing new 4.5 map semantics.

Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: http://reviews.llvm.org/D20111

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@270868 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-26 16:48:10 +00:00
Samuel Antao 435fb2e082 [OpenMP] Code generation for target exit data directive
Summary:
This patch adds support for the target exit data directive code generation.

Given that, apart from the employed runtime call, target exit data requires the same code generation pattern as target enter data, the OpenMP codegen entry point was renamed and reused for both.

Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev

Subscribers: cfe-commits, fraggamuffin, caomhin

Differential Revision: http://reviews.llvm.org/D17369

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@267814 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-27 23:14:30 +00:00