[Openmp-commits] [PATCH] D106310: [Libomptarget] Remove volatile from NVPTX work function

Joseph Huber via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Mon Jul 19 14:01:35 PDT 2021


jhuber6 created this revision.
jhuber6 added a reviewer: jdoerfert.
jhuber6 requested review of this revision.
Herald added a project: OpenMP.
Herald added a subscriber: openmp-commits.

Currently the NPVTX work function is marked volatile. This prevents some
optimizations from using this value.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106310

Files:
  openmp/libomptarget/deviceRTLs/common/omptarget.h
  openmp/libomptarget/deviceRTLs/common/src/omp_data.cu


Index: openmp/libomptarget/deviceRTLs/common/src/omp_data.cu
===================================================================
--- openmp/libomptarget/deviceRTLs/common/src/omp_data.cu
+++ openmp/libomptarget/deviceRTLs/common/src/omp_data.cu
@@ -50,7 +50,7 @@
 // communicate with the workers.  Since it is in shared memory, there is one
 // copy of these variables for each kernel, instance, and team.
 ////////////////////////////////////////////////////////////////////////////////
-volatile omptarget_nvptx_WorkFn SHARED(omptarget_nvptx_workFn);
+omptarget_nvptx_WorkFn SHARED(omptarget_nvptx_workFn);
 
 ////////////////////////////////////////////////////////////////////////////////
 // OpenMP kernel execution parameters
Index: openmp/libomptarget/deviceRTLs/common/omptarget.h
===================================================================
--- openmp/libomptarget/deviceRTLs/common/omptarget.h
+++ openmp/libomptarget/deviceRTLs/common/omptarget.h
@@ -265,7 +265,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 typedef void *omptarget_nvptx_WorkFn;
-extern volatile omptarget_nvptx_WorkFn EXTERN_SHARED(omptarget_nvptx_workFn);
+extern omptarget_nvptx_WorkFn EXTERN_SHARED(omptarget_nvptx_workFn);
 
 ////////////////////////////////////////////////////////////////////////////////
 // get private data structures


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