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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
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For better performance and to unify code with offloading part we pass
scalar firstprivate values by value, instead of by reference. It will
remove some extra copying operations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@269751 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch implements the teams directive for the NVPTX backend. It is different from the host code generation path as it:
Does not call kmpc_fork_teams. All necessary teams and threads are started upon touching the target region, when launching a CUDA kernel, and their execution is coordinated through sequential and parallel regions within the target region.
Does not call kmpc_push_num_teams even if a num_teams of thread_limit clause is present. Setting the number of teams and the thread limit is implemented by the nvptx-related runtime.
Please note that I am now passing a Clang Expr * to emitPushNumTeams instead of the originally chosen llvm::Value * type. The reason for that is that I want to avoid emitting expressions for num_teams and thread_limit if they are not needed in the target region.
http://reviews.llvm.org/D17963
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@265304 91177308-0d34-0410-b5e6-96231b3b80d8
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