Commit Graph

9 Commits

Author SHA1 Message Date
Alexey Bataev c2c21ef9d2 [OPENMP]Initial fix PR42392: Improve -Wuninitialized warnings for OpenMP programs.
Summary:
Some OpenMP clauses rely on the values of the variables. If the variable
is not initialized and used in OpenMP clauses that depend on the
variables values, it should be reported that the uninitialized variable
is used in the OpenMP clause expression.
This patch adds initial processing for uninitialized variables in OpenMP
constructs. Currently, it checks for use of the uninitialized variables
in the structured blocks.

Reviewers: NoQ, Szelethus, dcoughlin, xazax.hun, a.sidorin, george.karpenkov, szepet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64356

llvm-svn: 365786
2019-07-11 14:54:17 +00:00
Alexey Bataev a914888b49 [OPENMP]Add -Wunintialized to the erroneous tests for future fix PR42392,
NFC.

llvm-svn: 365334
2019-07-08 15:45:24 +00:00
Alexey Bataev 41ebe0ce64 [OPENMP]Fix PR41768: check DSA for globals with default(none) clauses.
If the default(none) was specified for the construct, we might miss
diagnostic for the globals without explicitly specified data-sharing
attributes. Patch fixes this problem.

llvm-svn: 360362
2019-05-09 18:14:57 +00:00
Roman Lebedev a8f8d3b01e Revert "[OPENMP]Fix PR41768: check DSA for globals with `default(none)` clauses."
This has introduced (exposed?) a crash in clang sema,
that does not happen without this patch.
I'll followup in the original bugreport and commit with reproducer.

This reverts commit r360061.

llvm-svn: 360327
2019-05-09 10:48:13 +00:00
Alexey Bataev cf9e7a282b [OPENMP]Fix PR41768: check DSA for globals with `default(none)` clauses.
If the `default(none)` was specified for the construct, we might miss
diagnostic for the globals without explicitly specified data-sharing
attributes. Patch fixes this problem.

llvm-svn: 360061
2019-05-06 17:49:22 +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 a1f6fbd9ed [OPENMP] Do not allow `linear` clauses on non-simd distribute
directives.

`linear` clause is not allowed on non-simd distribute-based directives.

llvm-svn: 319332
2017-11-29 18:20:04 +00:00
Alexey Bataev dcb4b8fbc1 [OPENMP] Add support for cancel constructs in [teams] distribute
parallel for directives.

Added codegen/sema support for cancel constructs in [teams] distribute
parallel for directives.

llvm-svn: 318872
2017-11-22 20:19:50 +00:00
Carlo Bertolli ffafe10fac [OpenMP] Prepare sema to support combined constructs with omp distribute and omp for
https://reviews.llvm.org/D32237

This patch prepares sema with additional fields to support all those composite and combined constructs of OpenMP that include pragma 'distribute' and 'for', such as 'distribute parallel for'. It also extends the regression tests for 'distribute parallel for' and adds a new one.

llvm-svn: 300802
2017-04-20 00:39:39 +00:00