Commit Graph

17 Commits

Author SHA1 Message Date
Sander de Smalen 9084a3b118 [DebugInfo] Avoid name conflict of generated VLA expression variable.
Summary:
This patch also adds the 'DW_AT_artificial' flag to the generated variable.

Addresses the issues mentioned in http://llvm.org/PR30553.

Reviewers: CarlosAlbertoEnciso, probinson, aprantl

Reviewed By: aprantl

Subscribers: JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D43189

llvm-svn: 324988
2018-02-13 07:49:34 +00:00
Sander de Smalen 891af03a55 Recommit rL323952: [DebugInfo] Enable debug information for C99 VLA types.
Fixed build issue when building with g++-4.8 (specialization after instantiation).

llvm-svn: 324173
2018-02-03 13:55:59 +00:00
Sander de Smalen 4e9a1264dd Reverting patch rL323952 due to build errors that I
haven't encountered in local builds.

llvm-svn: 323956
2018-02-01 12:27:13 +00:00
Sander de Smalen 17c4633e7f [DebugInfo] Enable debug information for C99 VLA types
Summary:
This patch enables debugging of C99 VLA types by generating more precise
LLVM Debug metadata, using the extended DISubrange 'count' field that
takes a DIVariable.
    
This should implement:
  Bug 30553: Debug info generated for arrays is not what GDB expects (not as good as GCC's)
https://bugs.llvm.org/show_bug.cgi?id=30553

Reviewers: echristo, aprantl, dexonsmith, clayborg, pcc, kristof.beyls, dblaikie

Reviewed By: aprantl

Subscribers: jholewinski, schweitz, davide, fhahn, JDevlieghere, cfe-commits

Differential Revision: https://reviews.llvm.org/D41698

llvm-svn: 323952
2018-02-01 11:25:10 +00:00
Alexey Bataev 8451efad89 [OPENMP] Add codegen for `depend` clauses on `target` directive.
Added basic support for codegen of `depend` clauses on `target`
directive.

llvm-svn: 322501
2018-01-15 19:06:12 +00:00
Alexey Bataev a8a9153a37 [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.

llvm-svn: 321560
2017-12-29 18:07:07 +00:00
Alexey Bataev a9f77c6df7 [OPENMP] Add codegen for `nowait` clause in target directives.
Added basic codegen for `nowait` clauses in target-based directives.

llvm-svn: 320613
2017-12-13 21:04:20 +00:00
George Rokos 63bc9d6f66 [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

llvm-svn: 318789
2017-11-21 18:25:12 +00:00
Alexey Bataev 1b48c5e56b [OPENMP] Fix PR35013: Fix passing VLAs captures to outlined functions.
Fixed passing of VLAs and variably-modified types to outlined functions.
Synchronized passing with the types codegen.

llvm-svn: 316488
2017-10-24 19:52:31 +00:00
Alexey Bataev 2a007e05a0 [OPENMP] Simplify codegen for non-offloading code.
Simplified and generalized codegen for non-offloading part that works if
offloading is failed or condition of the `if` clause is `false`.

llvm-svn: 314670
2017-10-02 14:20:58 +00:00
Alexey Bataev f47c4b4184 [OPENMP] Generate implicit map|firstprivate clauses for target-based
directives.

If the variable is used in the target-based region but is not found in
any private|mapping clause, then generate implicit firstprivate|map
clauses for these implicitly mapped variables.

llvm-svn: 314205
2017-09-26 13:47:31 +00:00
Alexey Bataev 1fdfdf7155 [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)
...
```

llvm-svn: 306697
2017-06-29 16:43:05 +00:00
George Rokos 29d0f00340 [OpenMP] Create COMDAT group for OpenMP offload registration code to avoid multiple copies
Thanks to Sergey Dmitriev for submitting the patch.

Differential Revision: https://reviews.llvm.org/D33509

llvm-svn: 304056
2017-05-27 03:03:13 +00:00
Arpith Chacko Jacob 33c849a007 [OpenMP] Support for the num_threads-clause on 'target parallel'.
The num_threads-clause on the combined directive applies to the
'parallel' region of this construct. We modify the NumThreadsClause
class to capture the clause expression within the 'target' region.

The offload runtime call for 'target parallel' is changed to
__tgt_target_teams() with 1 team and the number of threads set by
this clause or a default if none.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29082

llvm-svn: 292997
2017-01-25 00:57:16 +00:00
Arpith Chacko Jacob 19b911cb75 [OpenMP] Codegen support for 'target parallel' on the host.
This patch adds support for codegen of 'target parallel' on the host.
It is also the first combined directive that requires two or more
captured statements.  Support for this functionality is included in
the patch.

A combined directive such as 'target parallel' has two captured
statements, one for the 'target' and the other for the 'parallel'
region.  Two captured statements are required because each has
different implicit parameters (see SemaOpenMP.cpp).  For example,
the 'parallel' has 'global_tid' and 'bound_tid' while the 'target'
does not.  The patch adds support for handling multiple captured
statements based on the combined directive.

When codegen'ing the 'target parallel' directive, the 'target'
outlined function is created using the outer captured statement
and the 'parallel' outlined function is created using the inner
captured statement.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D28753

llvm-svn: 292419
2017-01-18 18:18:53 +00:00
Arpith Chacko Jacob 42793e000a Revert r292374 to debug Windows buildbot failure.
llvm-svn: 292400
2017-01-18 15:36:05 +00:00
Arpith Chacko Jacob 68019578a3 [OpenMP] Codegen support for 'target parallel' on the host.
This patch adds support for codegen of 'target parallel' on the host.
It is also the first combined directive that requires two or more
captured statements.  Support for this functionality is included in
the patch.

A combined directive such as 'target parallel' has two captured
statements, one for the 'target' and the other for the 'parallel'
region.  Two captured statements are required because each has
different implicit parameters (see SemaOpenMP.cpp).  For example,
the 'parallel' has 'global_tid' and 'bound_tid' while the 'target'
does not.  The patch adds support for handling multiple captured
statements based on the combined directive.

When codegen'ing the 'target parallel' directive, the 'target'
outlined function is created using the outer captured statement
and the 'parallel' outlined function is created using the inner
captured statement.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D28753

llvm-svn: 292374
2017-01-18 15:14:52 +00:00