Reland [HIP] use offload wrapper for non-device-only non-rdc (#143964)

Fixed a typo:

-  auto Section = (Prefix + "llvm_offload_entries").str();
+  auto Section = (Prefix + "_offload_entries").str();

which broke buildbot e.g.

https://lab.llvm.org/buildbot/#/builders/208/builds/1948

Author: yxsamliu

clang/lib/CodeGen/CGCUDANV.cpp

@@ -1280,7 +1280,8 @@ llvm::Function *CGNVCUDARuntime::finalizeModule() {
     return nullptr;
   }
   if (CGM.getLangOpts().OffloadViaLLVM ||
-      (CGM.getLangOpts().OffloadingNewDriver && RelocatableDeviceCode))
+      (CGM.getLangOpts().OffloadingNewDriver &&
+       (CGM.getLangOpts().HIP || RelocatableDeviceCode)))
     createOffloadingEntries();
   else
     return makeModuleCtorFunction();

clang/lib/Driver/Driver.cpp

@@ -4423,6 +4423,10 @@ void Driver::BuildActions(Compilation &C, DerivedArgList &Args,
                    options::OPT_no_offload_new_driver,
                    C.isOffloadingHostKind(Action::OFK_Cuda));
 
+  bool HIPNoRDC =
+      C.isOffloadingHostKind(Action::OFK_HIP) &&
+      !Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false);
+
   // Builder to be used to build offloading actions.
   std::unique_ptr<OffloadingActionBuilder> OffloadBuilder =
       !UseNewOffloadingDriver
@@ -4556,7 +4560,7 @@ void Driver::BuildActions(Compilation &C, DerivedArgList &Args,
     // Check if this Linker Job should emit a static library.
     if (ShouldEmitStaticLibrary(Args)) {
       LA = C.MakeAction<StaticLibJobAction>(LinkerInputs, types::TY_Image);
-    } else if (UseNewOffloadingDriver ||
+    } else if ((UseNewOffloadingDriver && !HIPNoRDC) ||
                Args.hasArg(options::OPT_offload_link)) {
       LA = C.MakeAction<LinkerWrapperJobAction>(LinkerInputs, types::TY_Image);
       LA->propagateHostOffloadInfo(C.getActiveOffloadKinds(),
@@ -4867,10 +4871,31 @@ Action *Driver::BuildOffloadingActions(Compilation &C,
                                        const InputTy &Input, StringRef CUID,
                                        Action *HostAction) const {
   // Don't build offloading actions if explicitly disabled or we do not have a
-  // valid source input and compile action to embed it in. If preprocessing only
-  // ignore embedding.
-  if (offloadHostOnly() || !types::isSrcFile(Input.first) ||
-      !(isa<CompileJobAction>(HostAction) ||
+  // valid source input.
+  if (offloadHostOnly() || !types::isSrcFile(Input.first))
+    return HostAction;
+
+  bool HIPNoRDC =
+      C.isOffloadingHostKind(Action::OFK_HIP) &&
+      !Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false);
+
+  // For HIP non-rdc non-device-only compilation, create a linker wrapper
+  // action for each host object to link, bundle and wrap device files in
+  // it.
+  if ((isa<AssembleJobAction>(HostAction) ||
+       (isa<BackendJobAction>(HostAction) &&
+        HostAction->getType() == types::TY_LTO_BC)) &&
+      HIPNoRDC && !offloadDeviceOnly()) {
+    ActionList AL{HostAction};
+    HostAction = C.MakeAction<LinkerWrapperJobAction>(AL, types::TY_Object);
+    HostAction->propagateHostOffloadInfo(C.getActiveOffloadKinds(),
+                                         /*BoundArch=*/nullptr);
+    return HostAction;
+  }
+
+  // Don't build offloading actions if we do not have a compile action. If
+  // preprocessing only ignore embedding.
+  if (!(isa<CompileJobAction>(HostAction) ||
         getFinalPhase(Args) == phases::Preprocess))
     return HostAction;
 
@@ -4966,12 +4991,12 @@ Action *Driver::BuildOffloadingActions(Compilation &C,
       }
     }
 
-    // Compiling HIP in non-RDC mode requires linking each action individually.
+    // Compiling HIP in device-only non-RDC mode requires linking each action
+    // individually.
     for (Action *&A : DeviceActions) {
       if ((A->getType() != types::TY_Object &&
            A->getType() != types::TY_LTO_BC) ||
-          Kind != Action::OFK_HIP ||
-          Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false))
+          !HIPNoRDC || !offloadDeviceOnly())
         continue;
       ActionList LinkerInput = {A};
       A = C.MakeAction<LinkJobAction>(LinkerInput, types::TY_Image);
@@ -4995,12 +5020,12 @@ Action *Driver::BuildOffloadingActions(Compilation &C,
     }
   }
 
-  // HIP code in non-RDC mode will bundle the output if it invoked the linker.
+  // HIP code in device-only non-RDC mode will bundle the output if it invoked
+  // the linker.
   bool ShouldBundleHIP =
-      C.isOffloadingHostKind(Action::OFK_HIP) &&
+      HIPNoRDC && offloadDeviceOnly() &&
       Args.hasFlag(options::OPT_gpu_bundle_output,
                    options::OPT_no_gpu_bundle_output, true) &&
-      !Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false) &&
       !llvm::any_of(OffloadActions,
                     [](Action *A) { return A->getType() != types::TY_Image; });
 
@@ -5020,11 +5045,9 @@ Action *Driver::BuildOffloadingActions(Compilation &C,
         C.MakeAction<LinkJobAction>(OffloadActions, types::TY_CUDA_FATBIN);
     DDep.add(*FatbinAction, *C.getSingleOffloadToolChain<Action::OFK_Cuda>(),
              nullptr, Action::OFK_Cuda);
-  } else if (C.isOffloadingHostKind(Action::OFK_HIP) &&
-             !Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc,
-                           false)) {
-    // If we are not in RDC-mode we just emit the final HIP fatbinary for each
-    // translation unit, linking each input individually.
+  } else if (HIPNoRDC && offloadDeviceOnly()) {
+    // If we are in device-only non-RDC-mode we just emit the final HIP
+    // fatbinary for each translation unit, linking each input individually.
     Action *FatbinAction =
         C.MakeAction<LinkJobAction>(OffloadActions, types::TY_HIP_FATBIN);
     DDep.add(*FatbinAction, *C.getSingleOffloadToolChain<Action::OFK_HIP>(),
@@ -5177,8 +5200,11 @@ Action *Driver::ConstructPhaseAction(
         (((Input->getOffloadingToolChain() &&
            Input->getOffloadingToolChain()->getTriple().isAMDGPU()) ||
           TargetDeviceOffloadKind == Action::OFK_HIP) &&
-         (Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc,
-                       false) ||
+         ((Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc,
+                        false) ||
+           (Args.hasFlag(options::OPT_offload_new_driver,
+                         options::OPT_no_offload_new_driver, false) &&
+            !offloadDeviceOnly())) ||
           TargetDeviceOffloadKind == Action::OFK_OpenMP))) {
       types::ID Output =
           Args.hasArg(options::OPT_S) &&

clang/lib/Driver/ToolChains/Clang.cpp

@@ -7710,7 +7710,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back("-fcuda-include-gpubinary");
     CmdArgs.push_back(CudaDeviceInput->getFilename());
   } else if (!HostOffloadingInputs.empty()) {
-    if ((IsCuda || IsHIP) && !IsRDCMode) {
+    if (IsCuda && !IsRDCMode) {
       assert(HostOffloadingInputs.size() == 1 && "Only one input expected");
       CmdArgs.push_back("-fcuda-include-gpubinary");
       CmdArgs.push_back(HostOffloadingInputs.front().getFilename());
@@ -9257,8 +9257,20 @@ void LinkerWrapper::ConstructJob(Compilation &C, const JobAction &JA,
   // Add the linker arguments to be forwarded by the wrapper.
   CmdArgs.push_back(Args.MakeArgString(Twine("--linker-path=") +
                                        LinkCommand->getExecutable()));
-  for (const char *LinkArg : LinkCommand->getArguments())
-    CmdArgs.push_back(LinkArg);
+
+  // We use action type to differentiate two use cases of the linker wrapper.
+  // TY_Image for normal linker wrapper work.
+  // TY_Object for HIP fno-gpu-rdc embedding device binary in a relocatable
+  // object.
+  assert(JA.getType() == types::TY_Object || JA.getType() == types::TY_Image);
+  if (JA.getType() == types::TY_Object) {
+    CmdArgs.append({"-o", Output.getFilename()});
+    for (auto Input : Inputs)
+      CmdArgs.push_back(Input.getFilename());
+    CmdArgs.push_back("-r");
+  } else
+    for (const char *LinkArg : LinkCommand->getArguments())
+      CmdArgs.push_back(LinkArg);
 
   addOffloadCompressArgs(Args, CmdArgs);
 

clang/test/Driver/hip-binding.hip

@@ -93,7 +93,7 @@
 // RUN:        -nogpulib -nogpuinc -foffload-lto --offload-arch=gfx90a --offload-arch=gfx908 -c %s 2>&1 \
 // RUN: | FileCheck -check-prefix=LTO-NO-RDC %s
 //      LTO-NO-RDC: # "amdgcn-amd-amdhsa" - "clang", inputs: ["[[INPUT:.+]]"], output: "[[LTO_908:.+]]"
-// LTO-NO-RDC-NEXT: # "amdgcn-amd-amdhsa" - "AMDGCN::Linker", inputs: ["[[LTO_908]]"], output: "[[OBJ_908:.+]]"
 // LTO-NO-RDC-NEXT: # "amdgcn-amd-amdhsa" - "clang", inputs: ["[[INPUT]]"], output: "[[LTO_90A:.+]]"
-// LTO-NO-RDC-NEXT: # "amdgcn-amd-amdhsa" - "AMDGCN::Linker", inputs: ["[[LTO_90A]]"], output: "[[OBJ_90A:.+]]"
-// LTO-NO-RDC-NEXT: # "amdgcn-amd-amdhsa" - "AMDGCN::Linker", inputs: ["[[OBJ_908]]", "[[OBJ_90A]]"], output: "[[HIPFB:.+]]"
+// LTO-NO-RDC-NEXT: # "x86_64-unknown-linux-gnu" - "Offload::Packager", inputs: ["[[LTO_908]]", "[[LTO_90A]]"], output: "[[PKG:.+]]"
+// LTO-NO-RDC-NEXT: # "x86_64-unknown-linux-gnu" - "clang", inputs: ["[[INPUT]]", "[[PKG]]"], output: "[[OBJ:.+]]"
+// LTO-NO-RDC-NEXT: # "x86_64-unknown-linux-gnu" - "Offload::Linker", inputs: ["[[OBJ]]"], output: "hip-binding.o"

clang/test/Driver/hip-phases.hip

@@ -8,39 +8,57 @@
 //
 // RUN: %clang -x hip --target=x86_64-unknown-linux-gnu -ccc-print-phases \
 // RUN: --no-offload-new-driver --cuda-gpu-arch=gfx803 %s 2>&1 \
-// RUN: | FileCheck -check-prefixes=BIN,NRD,OLD %s
+// RUN: | FileCheck -check-prefixes=BIN,OLD,OLDN %s
 // RUN: %clang -x hip --target=x86_64-unknown-linux-gnu -ccc-print-phases \
 // RUN: --offload-new-driver --cuda-gpu-arch=gfx803 %s 2>&1 \
-// RUN: | FileCheck -check-prefixes=BIN,NRD,NEW %s
+// RUN: | FileCheck -check-prefixes=BIN,NEW,NEWN %s
+// RUN: %clang -x hip --target=x86_64-unknown-linux-gnu -ccc-print-phases \
+// RUN: --offload-new-driver --cuda-gpu-arch=gfx803 -flto -c %s 2>&1 \
+// RUN: | FileCheck -check-prefixes=BIN,NEW,NEWLTO %s
 //
 // RUN: %clang -x hip --target=x86_64-unknown-linux-gnu -ccc-print-phases \
 // RUN: --no-offload-new-driver --cuda-gpu-arch=gfx803 -fgpu-rdc %s 2>&1 \
-// RUN: | FileCheck -check-prefixes=BIN,RDC %s
+// RUN: | FileCheck -check-prefixes=BIN,OLD,OLDR %s
+// RUN: %clang -x hip --target=x86_64-unknown-linux-gnu -ccc-print-phases \
+// RUN: --offload-new-driver --cuda-gpu-arch=gfx803 -fgpu-rdc %s 2>&1 \
+// RUN: | FileCheck -check-prefixes=BIN,NEW,NEWR %s
 //
 // BIN-DAG: [[P0:[0-9]+]]: input, "{{.*}}hip-phases.hip", [[T:hip]], (host-[[T]])
 // BIN-DAG: [[P1:[0-9]+]]: preprocessor, {[[P0]]}, [[T]]-cpp-output, (host-[[T]])
 // BIN-DAG: [[P2:[0-9]+]]: compiler, {[[P1]]}, ir, (host-[[T]])
-// RDC-DAG: [[P12:[0-9]+]]: backend, {[[P2]]}, assembler, (host-[[T]])
-// RDC-DAG: [[P13:[0-9]+]]: assembler, {[[P12]]}, object, (host-[[T]])
+// OLDR-DAG: [[P12:[0-9]+]]: backend, {[[P2]]}, assembler, (host-[[T]])
+// OLDR-DAG: [[P13:[0-9]+]]: assembler, {[[P12]]}, object, (host-[[T]])
 
 // BIN-DAG: [[P3:[0-9]+]]: input, "{{.*}}hip-phases.hip", [[T]], (device-[[T]], [[ARCH:gfx803]])
 // BIN-DAG: [[P4:[0-9]+]]: preprocessor, {[[P3]]}, [[T]]-cpp-output, (device-[[T]], [[ARCH]])
 // BIN-DAG: [[P5:[0-9]+]]: compiler, {[[P4]]}, ir, (device-[[T]], [[ARCH]])
-// NRD-DAG: [[P6:[0-9]+]]: backend, {[[P5]]}, assembler, (device-[[T]], [[ARCH]])
-// NRD-DAG: [[P7:[0-9]+]]: assembler, {[[P6]]}, object, (device-[[T]], [[ARCH]])
-// RDC-DAG: [[P7:[0-9]+]]: backend, {[[P5]]}, ir, (device-[[T]], [[ARCH]])
-// BIN-DAG: [[P8:[0-9]+]]: linker, {[[P7]]}, image, (device-[[T]], [[ARCH]])
-// BIN-DAG: [[P9:[0-9]+]]: offload, "device-[[T]] (amdgcn-amd-amdhsa:[[ARCH]])" {[[P8]]}, image
-// NRD-DAG: [[P10:[0-9]+]]: linker, {[[P9]]}, hip-fatbin, (device-[[T]])
-// RDC-DAG: [[P10:[0-9]+]]: linker, {[[P9]]}, object, (device-[[T]])
-
-// NRD-DAG: [[P11:[0-9]+]]: offload, "host-[[T]] (x86_64-unknown-linux-gnu)" {[[P2]]}, "device-[[T]] (amdgcn-amd-amdhsa)" {[[P10]]}, ir
-// RDC-DAG: [[P11:[0-9]+]]: offload, "device-[[T]] (amdgcn-amd-amdhsa)" {[[P10]]}, object
-// NRD-DAG: [[P12:[0-9]+]]: backend, {[[P11]]}, assembler, (host-[[T]])
-// NRD-DAG: [[P13:[0-9]+]]: assembler, {[[P12]]}, object, (host-[[T]])
-// OLD-DAG: [[P14:[0-9]+]]: linker, {[[P13]]}, image, (host-[[T]])
-// NEW-DAG: [[P14:[0-9]+]]: clang-linker-wrapper, {[[P13]]}, image, (host-[[T]])
-// RDC-DAG: [[P14:[0-9]+]]: linker, {[[P13]], [[P11]]}, image, (host-[[T]])
+// OLDN-DAG: [[P6:[0-9]+]]: backend, {[[P5]]}, assembler, (device-[[T]], [[ARCH]])
+// NEW-DAG: [[P6:[0-9]+]]: backend, {[[P5]]}, ir, (device-[[T]], [[ARCH]])
+// OLDN-DAG: [[P7:[0-9]+]]: assembler, {[[P6]]}, object, (device-[[T]], [[ARCH]])
+// OLDR-DAG: [[P7:[0-9]+]]: backend, {[[P5]]}, ir, (device-[[T]], [[ARCH]])
+// OLD-DAG: [[P8:[0-9]+]]: linker, {[[P7]]}, image, (device-[[T]], [[ARCH]])
+// OLD-DAG: [[P9:[0-9]+]]: offload, "device-[[T]] (amdgcn-amd-amdhsa:[[ARCH]])" {[[P8]]}, image
+// NEW-DAG: [[P9:[0-9]+]]: offload, "device-[[T]] (amdgcn-amd-amdhsa:[[ARCH]])" {[[P6]]}, ir
+// OLDN-DAG: [[P10:[0-9]+]]: linker, {[[P9]]}, hip-fatbin, (device-[[T]])
+// NEW-DAG: [[P10:[0-9]+]]: clang-offload-packager, {[[P9]]}, image, (device-[[T]])
+// OLDR-DAG: [[P10:[0-9]+]]: linker, {[[P9]]}, object, (device-[[T]])
+
+// OLDN-DAG: [[P11:[0-9]+]]: offload, "host-[[T]] (x86_64-unknown-linux-gnu)" {[[P2]]}, "device-[[T]] (amdgcn-amd-amdhsa)" {[[P10]]}, ir
+// NEW-DAG: [[P11:[0-9]+]]: offload, "host-[[T]] (x86_64-unknown-linux-gnu)" {[[P2]]}, "device-[[T]] (x86_64-unknown-linux-gnu)" {[[P10]]}, ir
+// OLDR-DAG: [[P11:[0-9]+]]: offload, "device-[[T]] (amdgcn-amd-amdhsa)" {[[P10]]}, object
+// OLDN-DAG: [[P12:[0-9]+]]: backend, {[[P11]]}, assembler, (host-[[T]])
+// OLDN-DAG: [[P13:[0-9]+]]: assembler, {[[P12]]}, object, (host-[[T]])
+// NEWN-DAG: [[P12:[0-9]+]]: backend, {[[P11]]}, assembler, (host-[[T]])
+// NEWN-DAG: [[P13:[0-9]+]]: assembler, {[[P12]]}, object, (host-[[T]])
+// NEWLTO-DAG: [[P13:[0-9]+]]: backend, {[[P11]]}, lto-bc, (host-hip)
+// NEWR-DAG: [[P12:[0-9]+]]: backend, {[[P11]]}, assembler, (host-[[T]])
+// NEWR-DAG: [[P13:[0-9]+]]: assembler, {[[P12]]}, object, (host-[[T]])
+// OLDN-DAG: [[P14:[0-9]+]]: linker, {[[P13]]}, image, (host-[[T]])
+// NEWN-DAG: [[P14:[0-9]+]]: clang-linker-wrapper, {[[P13]]}, object, (host-[[T]])
+// NEWLTO-DAG: [[P14:[0-9]+]]: clang-linker-wrapper, {[[P13]]}, object, (host-[[T]])
+// OLDR-DAG: [[P14:[0-9]+]]: linker, {[[P13]], [[P11]]}, image, (host-[[T]])
+// NEWR-DAG: [[P14:[0-9]+]]: clang-linker-wrapper, {[[P13]]}, image, (host-[[T]])
+// NEWN-DAG: [[P15:[0-9]+]]: linker, {[[P14]]}, image
 
 //
 // Test single gpu architecture up to the assemble phase.