[OpenMP] Make default parallel for schedule in NVPTX target regions in SPMD mode achieve coalescing
Summary: Set default schedule for parallel for loops to schedule(static, 1) when using SPMD mode on the NVPTX device offloading toolchain to ensure coalescing.
Reviewers: ABataev, Hahnfeld, caomhin
Reviewed By: ABataev
Subscribers: jholewinski, guansong, cfe-commits
Differential Revision: https://reviews.llvm.org/D52629
llvm-svn: 343260
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.h b/clang/lib/CodeGen/CGOpenMPRuntime.h
index 982aeb3..35f75a9 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.h
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.h
@@ -1496,6 +1496,12 @@
const OMPLoopDirective &S, OpenMPDistScheduleClauseKind &ScheduleKind,
llvm::Value *&Chunk) const {}
+ /// Choose default schedule type and chunk value for the
+ /// schedule clause.
+ virtual void getDefaultScheduleAndChunk(CodeGenFunction &CGF,
+ const OMPLoopDirective &S, OpenMPScheduleClauseKind &ScheduleKind,
+ llvm::Value *&Chunk) const {}
+
/// Emits call of the outlined function with the provided arguments,
/// translating these arguments to correct target-specific arguments.
virtual void