jhuber6 created this revision.
jhuber6 added reviewers: jdoerfert, tianshilei1992.
Herald added subscribers: dexonsmith, dang, kerbowa, guansong, yaxunl,
nhaehnle, jvesely.
jhuber6 requested review of this revision.
Herald added subscribers: cfe-commits, sstefan1.
Herald added a project: clang.
This patch adds a driver flag to optinally enable the new device runtime
bitcode library. This allows users to enable the new experimental runtime
before it becomes the default in the future.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D106793
Files:
clang/include/clang/Basic/LangOptions.def
clang/include/clang/Driver/Options.td
clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
clang/lib/Driver/ToolChains/Cuda.cpp
Index: clang/lib/Driver/ToolChains/Cuda.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Cuda.cpp
+++ clang/lib/Driver/ToolChains/Cuda.cpp
@@ -751,7 +751,13 @@
return;
}
- std::string BitcodeSuffix = "nvptx-" + GpuArch.str();
+ std::string BitcodeSuffix;
+ if (DriverArgs.hasFlag(options::OPT_fopenmp_target_new_runtime,
+ options::OPT_fno_openmp_target_new_runtime, false))
+ BitcodeSuffix = "new-nvptx-" + GpuArch.str();
+ else
+ BitcodeSuffix = "nvptx-" + GpuArch.str();
+
addOpenMPDeviceRTL(getDriver(), DriverArgs, CC1Args, BitcodeSuffix,
getTriple());
}
Index: clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
===================================================================
--- clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
+++ clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
@@ -222,7 +222,14 @@
if (DriverArgs.hasArg(options::OPT_nogpulib))
return;
- std::string BitcodeSuffix = "amdgcn-" + GPUArch;
+
+ std::string BitcodeSuffix;
+ if (DriverArgs.hasFlag(options::OPT_fopenmp_target_new_runtime,
+ options::OPT_fno_openmp_target_new_runtime, false))
+ BitcodeSuffix = "new-amdgcn-" + GPUArch;
+ else
+ BitcodeSuffix = "amdgcn-" + GPUArch;
+
addOpenMPDeviceRTL(getDriver(), DriverArgs, CC1Args, BitcodeSuffix,
getTriple());
}
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -2373,6 +2373,10 @@
Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
def fopenmp_cuda_teams_reduction_recs_num_EQ : Joined<["-"],
"fopenmp-cuda-teams-reduction-recs-num=">, Group<f_Group>,
Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
+defm openmp_target_new_runtime: BoolFOption<"openmp-target-new-runtime",
+ LangOpts<"OpenMPTargetNewRuntime">, DefaultFalse,
+ PosFlag<SetTrue, [CC1Option], "Use the new bitcode library for OpenMP
offloading">,
+ NegFlag<SetFalse>>;
defm openmp_optimistic_collapse : BoolFOption<"openmp-optimistic-collapse",
LangOpts<"OpenMPOptimisticCollapse">, DefaultFalse,
PosFlag<SetTrue, [CC1Option]>, NegFlag<SetFalse>,
BothFlags<[NoArgumentUnused, HelpHidden]>>;
Index: clang/include/clang/Basic/LangOptions.def
===================================================================
--- clang/include/clang/Basic/LangOptions.def
+++ clang/include/clang/Basic/LangOptions.def
@@ -240,6 +240,7 @@
LANGOPT(OpenMPCUDANumSMs , 32, 0, "Number of SMs for CUDA devices.")
LANGOPT(OpenMPCUDABlocksPerSM , 32, 0, "Number of blocks per SM for CUDA
devices.")
LANGOPT(OpenMPCUDAReductionBufNum , 32, 1024, "Number of the reduction records
in the intermediate reduction buffer used for the teams reductions.")
+LANGOPT(OpenMPTargetNewRuntime , 1, 0, "Use the new bitcode library for OpenMP
offloading")
LANGOPT(OpenMPOptimisticCollapse , 1, 0, "Use at most 32 bits to represent
the collapsed loop nest counter.")
LANGOPT(RenderScript , 1, 0, "RenderScript")
Index: clang/lib/Driver/ToolChains/Cuda.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Cuda.cpp
+++ clang/lib/Driver/ToolChains/Cuda.cpp
@@ -751,7 +751,13 @@
return;
}
- std::string BitcodeSuffix = "nvptx-" + GpuArch.str();
+ std::string BitcodeSuffix;
+ if (DriverArgs.hasFlag(options::OPT_fopenmp_target_new_runtime,
+ options::OPT_fno_openmp_target_new_runtime, false))
+ BitcodeSuffix = "new-nvptx-" + GpuArch.str();
+ else
+ BitcodeSuffix = "nvptx-" + GpuArch.str();
+
addOpenMPDeviceRTL(getDriver(), DriverArgs, CC1Args, BitcodeSuffix,
getTriple());
}
Index: clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
===================================================================
--- clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
+++ clang/lib/Driver/ToolChains/AMDGPUOpenMP.cpp
@@ -222,7 +222,14 @@
if (DriverArgs.hasArg(options::OPT_nogpulib))
return;
- std::string BitcodeSuffix = "amdgcn-" + GPUArch;
+
+ std::string BitcodeSuffix;
+ if (DriverArgs.hasFlag(options::OPT_fopenmp_target_new_runtime,
+ options::OPT_fno_openmp_target_new_runtime, false))
+ BitcodeSuffix = "new-amdgcn-" + GPUArch;
+ else
+ BitcodeSuffix = "amdgcn-" + GPUArch;
+
addOpenMPDeviceRTL(getDriver(), DriverArgs, CC1Args, BitcodeSuffix,
getTriple());
}
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -2373,6 +2373,10 @@
Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
def fopenmp_cuda_teams_reduction_recs_num_EQ : Joined<["-"], "fopenmp-cuda-teams-reduction-recs-num=">, Group<f_Group>,
Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
+defm openmp_target_new_runtime: BoolFOption<"openmp-target-new-runtime",
+ LangOpts<"OpenMPTargetNewRuntime">, DefaultFalse,
+ PosFlag<SetTrue, [CC1Option], "Use the new bitcode library for OpenMP offloading">,
+ NegFlag<SetFalse>>;
defm openmp_optimistic_collapse : BoolFOption<"openmp-optimistic-collapse",
LangOpts<"OpenMPOptimisticCollapse">, DefaultFalse,
PosFlag<SetTrue, [CC1Option]>, NegFlag<SetFalse>, BothFlags<[NoArgumentUnused, HelpHidden]>>;
Index: clang/include/clang/Basic/LangOptions.def
===================================================================
--- clang/include/clang/Basic/LangOptions.def
+++ clang/include/clang/Basic/LangOptions.def
@@ -240,6 +240,7 @@
LANGOPT(OpenMPCUDANumSMs , 32, 0, "Number of SMs for CUDA devices.")
LANGOPT(OpenMPCUDABlocksPerSM , 32, 0, "Number of blocks per SM for CUDA devices.")
LANGOPT(OpenMPCUDAReductionBufNum , 32, 1024, "Number of the reduction records in the intermediate reduction buffer used for the teams reductions.")
+LANGOPT(OpenMPTargetNewRuntime , 1, 0, "Use the new bitcode library for OpenMP offloading")
LANGOPT(OpenMPOptimisticCollapse , 1, 0, "Use at most 32 bits to represent the collapsed loop nest counter.")
LANGOPT(RenderScript , 1, 0, "RenderScript")
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