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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 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 438388c2ad [OPENMP] Added missed checks for for [simd] based directives. 
Added missed checks/analysis for safelen/simdlen clauses + linear clause
in for [simd] based directives.

llvm-svn: 318860
 2017-11-22 18:34:02 +00:00
Alexey Bataev c5970623e0 Revert "[OPENMP] Allow skip expression after comma in clauses with lists." 
This reverts commit http://reviews.llvm.org/rL265003. After some
thoughts decided to emit errors here.

llvm-svn: 265119
 2016-04-01 08:43:42 +00:00
Alexey Bataev 05968174c3 [OPENMP] Allow skip expression after comma in clauses with lists. 
Compatibility fix for better compatibility with the existing software.

llvm-svn: 265003
 2016-03-31 09:13:44 +00:00
Alexey Bataev b825de17b7 [OPENMP 4.5] parsing/sema support for 'nogroup' clause. 
OpenMP 4.5 adds 'taskloop' and 'taskloop simd' directives. These directives have new 'nogroup' clause. Patch adds basic parsing/sema support for this clause.

llvm-svn: 254899
 2015-12-07 10:51:44 +00:00
Alexey Bataev 0a6ed84a0d [OPENMP 4.5] Parsing/sema support for 'omp taskloop simd' directive. 
OpenMP 4.5 adds directive 'taskloop simd'. Patch adds parsing/sema analysis for 'taskloop simd' directive and its clauses.

llvm-svn: 254597
 2015-12-03 09:40:15 +00:00