Commit Graph

11 Commits

Author SHA1 Message Date
Alexey Bataev 2fb6268854 [OPENMP50]Add support for hint clause in atomic directive.
According to OpenMP 5.0, hint clause is alowed to be used in atomic
directives.
2020-02-13 13:28:43 -05:00
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 e04483ee35 [OPENMP]Initial support for 'allocate' clause.
Added parsing/sema analysis of the allocate clause.

llvm-svn: 357068
2019-03-27 14:14:31 +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
Kelvin Li 4f161cf1c2 [OpenMP] Ignore parens in atomic capture
Clang misdiagnoses atomic captures cases that contains parens.
i.e.

  int v, int *p;
#pragma omp atomic capture
{ v = (*p); (*p)++; }

Patch by David S.

Differential Revision: https://reviews.llvm.org/D22487

llvm-svn: 276167
2016-07-20 19:41:17 +00:00
Alexey Bataev db39021cee [OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)
-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736

llvm-svn: 237769
2015-05-20 04:24:19 +00:00
Alexey Bataev b78ca83d3b [OPENMP] Sema analysis for 'atomic capture' construct.
Added sema checks for forms of expressions/statements allowed under control of 'atomic capture' directive + generation of helper objects for future codegen.

llvm-svn: 233785
2015-04-01 03:33:17 +00:00
Alexey Bataev 1d160b1945 [OPENMP] Additional sema analysis for 'omp atomic[ update]'.
Adds additional semantic analysis + generation of helper expressions for proper codegen.

llvm-svn: 232164
2015-03-13 12:27:31 +00:00
Alexey Bataev f33eba6573 [OPENMP] Additional processing of 'omp atomic write' directive.
According to OpenMP standard, Section 2.12.6, atomic Construct, '#pragma omp atomic write' is allowed to be used only for expression statements of form 'x = expr;', where x is a lvalue expression and expr is an expression with scalar type. Patch adds checks for it.

llvm-svn: 222913
2014-11-28 07:21:40 +00:00
Alexey Bataev 62cec44ca4 [OPENMP] Additional processing of 'omp atomic read' directive.
According to OpenMP standard, Section 2.12.6, atomic Construct, '#pragma omp atomic read' is allowed to be used only for expression statements of form 'v = x;', where x and v (as applicable) are both l-value expressions with scalar type. Patch adds checks for it.

llvm-svn: 222231
2014-11-18 10:14:22 +00:00