r275645 - [CUDA][OpenMP] Create generic offload action
Richard Smith via cfe-commits
cfe-commits at lists.llvm.org
Mon Jul 18 14:45:44 PDT 2016
On Fri, Jul 15, 2016 at 4:13 PM, Samuel Antao via cfe-commits <
cfe-commits at lists.llvm.org> wrote:
> Author: sfantao
> Date: Fri Jul 15 18:13:27 2016
> New Revision: 275645
>
> URL: http://llvm.org/viewvc/llvm-project?rev=275645&view=rev
> Log:
> [CUDA][OpenMP] Create generic offload action
>
> Summary:
> This patch replaces the CUDA specific action by a generic offload action.
> The offload action may have multiple dependences classier in “host” and
> “device”. The way this generic offloading action is used is very similar to
> what is done today by the CUDA implementation: it is used to set a specific
> toolchain and architecture to its dependences during the generation of jobs.
>
> This patch also proposes propagating the offloading information through
> the action graph so that that information can be easily retrieved at any
> time during the generation of commands. This allows e.g. the "clang tool”
> to evaluate whether CUDA should be supported for the device or host and
> ptas to easily retrieve the target architecture.
>
> This is an example of how the action graphs would look like (compilation
> of a single CUDA file with two GPU architectures)
> ```
> 0: input, "cudatests.cu", cuda, (host-cuda)
> 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> 2: compiler, {1}, ir, (host-cuda)
> 3: input, "cudatests.cu", cuda, (device-cuda, sm_35)
> 4: preprocessor, {3}, cuda-cpp-output, (device-cuda, sm_35)
> 5: compiler, {4}, ir, (device-cuda, sm_35)
> 6: backend, {5}, assembler, (device-cuda, sm_35)
> 7: assembler, {6}, object, (device-cuda, sm_35)
> 8: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {7}, object
> 9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {6}, assembler
> 10: input, "cudatests.cu", cuda, (device-cuda, sm_37)
> 11: preprocessor, {10}, cuda-cpp-output, (device-cuda, sm_37)
> 12: compiler, {11}, ir, (device-cuda, sm_37)
> 13: backend, {12}, assembler, (device-cuda, sm_37)
> 14: assembler, {13}, object, (device-cuda, sm_37)
> 15: offload, "device-cuda (nvptx64-nvidia-cuda:sm_37)" {14}, object
> 16: offload, "device-cuda (nvptx64-nvidia-cuda:sm_37)" {13}, assembler
> 17: linker, {8, 9, 15, 16}, cuda-fatbin, (device-cuda)
> 18: offload, "host-cuda (powerpc64le-unknown-linux-gnu)" {2}, "device-cuda
> (nvptx64-nvidia-cuda)" {17}, ir
> 19: backend, {18}, assembler
> 20: assembler, {19}, object
> 21: input, "cuda", object
> 22: input, "cudart", object
> 23: linker, {20, 21, 22}, image
> ```
> The changes in this patch pass the existent regression tests (keeps the
> existent functionality) and resulting binaries execute correctly in a
> Power8+K40 machine.
>
> Reviewers: echristo, hfinkel, jlebar, ABataev, tra
>
> Subscribers: guansong, andreybokhanko, tcramer, mkuron, cfe-commits,
> arpith-jacob, carlo.bertolli, caomhin
>
> Differential Revision: https://reviews.llvm.org/D18171
>
> Added:
> cfe/trunk/test/Driver/cuda_phases.cu
> Modified:
> cfe/trunk/include/clang/Driver/Action.h
> cfe/trunk/include/clang/Driver/Compilation.h
> cfe/trunk/include/clang/Driver/Driver.h
> cfe/trunk/lib/Driver/Action.cpp
> cfe/trunk/lib/Driver/Driver.cpp
> cfe/trunk/lib/Driver/ToolChain.cpp
> cfe/trunk/lib/Driver/Tools.cpp
> cfe/trunk/lib/Driver/Tools.h
> cfe/trunk/lib/Frontend/CreateInvocationFromCommandLine.cpp
>
> Modified: cfe/trunk/include/clang/Driver/Action.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Action.h?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/include/clang/Driver/Action.h (original)
> +++ cfe/trunk/include/clang/Driver/Action.h Fri Jul 15 18:13:27 2016
> @@ -13,6 +13,7 @@
> #include "clang/Basic/Cuda.h"
> #include "clang/Driver/Types.h"
> #include "clang/Driver/Util.h"
> +#include "llvm/ADT/STLExtras.h"
> #include "llvm/ADT/SmallVector.h"
>
> namespace llvm {
> @@ -27,6 +28,8 @@ namespace opt {
> namespace clang {
> namespace driver {
>
> +class ToolChain;
> +
> /// Action - Represent an abstract compilation step to perform.
> ///
> /// An action represents an edge in the compilation graph; typically
> @@ -50,8 +53,7 @@ public:
> enum ActionClass {
> InputClass = 0,
> BindArchClass,
> - CudaDeviceClass,
> - CudaHostClass,
> + OffloadClass,
> PreprocessJobClass,
> PrecompileJobClass,
> AnalyzeJobClass,
> @@ -65,17 +67,13 @@ public:
> VerifyDebugInfoJobClass,
> VerifyPCHJobClass,
>
> - JobClassFirst=PreprocessJobClass,
> - JobClassLast=VerifyPCHJobClass
> + JobClassFirst = PreprocessJobClass,
> + JobClassLast = VerifyPCHJobClass
> };
>
> // The offloading kind determines if this action is binded to a
> particular
> // programming model. Each entry reserves one bit. We also have a
> special kind
> // to designate the host offloading tool chain.
> - //
> - // FIXME: This is currently used to indicate that tool chains are used
> in a
> - // given programming, but will be used here as well once a generic
> offloading
> - // action is implemented.
> enum OffloadKind {
> OFK_None = 0x00,
> // The host offloading tool chain.
> @@ -95,6 +93,19 @@ private:
> ActionList Inputs;
>
> protected:
> + ///
> + /// Offload information.
> + ///
> +
> + /// The host offloading kind - a combination of kinds encoded in a mask.
> + /// Multiple programming models may be supported simultaneously by the
> same
> + /// host.
> + unsigned ActiveOffloadKindMask = 0u;
> + /// Offloading kind of the device.
> + OffloadKind OffloadingDeviceKind = OFK_None;
> + /// The Offloading architecture associated with this action.
> + const char *OffloadingArch = nullptr;
> +
> Action(ActionClass Kind, types::ID Type) : Action(Kind, ActionList(),
> Type) {}
> Action(ActionClass Kind, Action *Input, types::ID Type)
> : Action(Kind, ActionList({Input}), Type) {}
> @@ -124,6 +135,40 @@ public:
> input_const_range inputs() const {
> return input_const_range(input_begin(), input_end());
> }
> +
> + /// Return a string containing the offload kind of the action.
> + std::string getOffloadingKindPrefix() const;
> + /// Return a string that can be used as prefix in order to generate
> unique
> + /// files for each offloading kind.
> + std::string getOffloadingFileNamePrefix(StringRef NormalizedTriple)
> const;
> +
> + /// Set the device offload info of this action and propagate it to its
> + /// dependences.
> + void propagateDeviceOffloadInfo(OffloadKind OKind, const char *OArch);
> + /// Append the host offload info of this action and propagate it to its
> + /// dependences.
> + void propagateHostOffloadInfo(unsigned OKinds, const char *OArch);
> + /// Set the offload info of this action to be the same as the provided
> action,
> + /// and propagate it to its dependences.
> + void propagateOffloadInfo(const Action *A);
> +
> + unsigned getOffloadingHostActiveKinds() const {
> + return ActiveOffloadKindMask;
> + }
> + OffloadKind getOffloadingDeviceKind() const { return
> OffloadingDeviceKind; }
> + const char *getOffloadingArch() const { return OffloadingArch; }
> +
> + /// Check if this action have any offload kinds. Note that host offload
> kinds
> + /// are only set if the action is a dependence to a host offload action.
> + bool isHostOffloading(OffloadKind OKind) const {
> + return ActiveOffloadKindMask & OKind;
> + }
> + bool isDeviceOffloading(OffloadKind OKind) const {
> + return OffloadingDeviceKind == OKind;
> + }
> + bool isOffloading(OffloadKind OKind) const {
> + return isHostOffloading(OKind) || isDeviceOffloading(OKind);
> + }
> };
>
> class InputAction : public Action {
> @@ -156,39 +201,126 @@ public:
> }
> };
>
> -class CudaDeviceAction : public Action {
> +/// An offload action combines host or/and device actions according to the
> +/// programming model implementation needs and propagates the offloading
> kind to
> +/// its dependences.
> +class OffloadAction final : public Action {
> virtual void anchor();
>
> - const CudaArch GpuArch;
> -
> - /// True when action results are not consumed by the host action (e.g
> when
> - /// -fsyntax-only or --cuda-device-only options are used).
> - bool AtTopLevel;
> -
> public:
> - CudaDeviceAction(Action *Input, CudaArch Arch, bool AtTopLevel);
> + /// Type used to communicate device actions. It associates bound
> architecture,
> + /// toolchain, and offload kind to each action.
> + class DeviceDependences final {
> + public:
> + typedef SmallVector<const ToolChain *, 3> ToolChainList;
> + typedef SmallVector<const char *, 3> BoundArchList;
> + typedef SmallVector<OffloadKind, 3> OffloadKindList;
> +
> + private:
> + // Lists that keep the information for each dependency. All the lists
> are
> + // meant to be updated in sync. We are adopting separate lists
> instead of a
> + // list of structs, because that simplifies forwarding the actions
> list to
> + // initialize the inputs of the base Action class.
> +
> + /// The dependence actions.
> + ActionList DeviceActions;
> + /// The offloading toolchains that should be used with the action.
> + ToolChainList DeviceToolChains;
> + /// The architectures that should be used with this action.
> + BoundArchList DeviceBoundArchs;
> + /// The offload kind of each dependence.
> + OffloadKindList DeviceOffloadKinds;
> +
> + public:
> + /// Add a action along with the associated toolchain, bound arch, and
> + /// offload kind.
> + void add(Action &A, const ToolChain &TC, const char *BoundArch,
> + OffloadKind OKind);
> +
> + /// Get each of the individual arrays.
> + const ActionList &getActions() const { return DeviceActions; };
> + const ToolChainList &getToolChains() const { return DeviceToolChains;
> };
> + const BoundArchList &getBoundArchs() const { return DeviceBoundArchs;
> };
> + const OffloadKindList &getOffloadKinds() const {
> + return DeviceOffloadKinds;
> + };
> + };
>
> - /// Get the CUDA GPU architecture to which this Action corresponds.
> Returns
> - /// UNKNOWN if this Action corresponds to multiple architectures.
> - CudaArch getGpuArch() const { return GpuArch; }
> + /// Type used to communicate host actions. It associates bound
> architecture,
> + /// toolchain, and offload kinds to the host action.
> + class HostDependence final {
> + /// The dependence action.
> + Action &HostAction;
> + /// The offloading toolchain that should be used with the action.
> + const ToolChain &HostToolChain;
> + /// The architectures that should be used with this action.
> + const char *HostBoundArch = nullptr;
> + /// The offload kind of each dependence.
> + unsigned HostOffloadKinds = 0u;
> +
> + public:
> + HostDependence(Action &A, const ToolChain &TC, const char *BoundArch,
> + const unsigned OffloadKinds)
> + : HostAction(A), HostToolChain(TC), HostBoundArch(BoundArch),
> + HostOffloadKinds(OffloadKinds){};
> + /// Constructor version that obtains the offload kinds from the device
> + /// dependencies.
> + HostDependence(Action &A, const ToolChain &TC, const char *BoundArch,
> + const DeviceDependences &DDeps);
> + Action *getAction() const { return &HostAction; };
> + const ToolChain *getToolChain() const { return &HostToolChain; };
> + const char *getBoundArch() const { return HostBoundArch; };
> + unsigned getOffloadKinds() const { return HostOffloadKinds; };
> + };
>
> - bool isAtTopLevel() const { return AtTopLevel; }
> + typedef llvm::function_ref<void(Action *, const ToolChain *, const char
> *)>
> + OffloadActionWorkTy;
>
> - static bool classof(const Action *A) {
> - return A->getKind() == CudaDeviceClass;
> - }
> -};
> +private:
> + /// The host offloading toolchain that should be used with the action.
> + const ToolChain *HostTC = nullptr;
>
> -class CudaHostAction : public Action {
> - virtual void anchor();
> - ActionList DeviceActions;
> + /// The tool chains associated with the list of actions.
> + DeviceDependences::ToolChainList DevToolChains;
>
> public:
> - CudaHostAction(Action *Input, const ActionList &DeviceActions);
> -
> - const ActionList &getDeviceActions() const { return DeviceActions; }
> + OffloadAction(const HostDependence &HDep);
> + OffloadAction(const DeviceDependences &DDeps, types::ID Ty);
> + OffloadAction(const HostDependence &HDep, const DeviceDependences
> &DDeps);
> +
> + /// Execute the work specified in \a Work on the host dependence.
> + void doOnHostDependence(const OffloadActionWorkTy &Work) const;
> +
> + /// Execute the work specified in \a Work on each device dependence.
> + void doOnEachDeviceDependence(const OffloadActionWorkTy &Work) const;
> +
> + /// Execute the work specified in \a Work on each dependence.
> + void doOnEachDependence(const OffloadActionWorkTy &Work) const;
> +
> + /// Execute the work specified in \a Work on each host or device
> dependence if
> + /// \a IsHostDependenceto is true or false, respectively.
> + void doOnEachDependence(bool IsHostDependence,
> + const OffloadActionWorkTy &Work) const;
> +
> + /// Return true if the action has a host dependence.
> + bool hasHostDependence() const;
> +
> + /// Return the host dependence of this action. This function is only
> expected
> + /// to be called if the host dependence exists.
> + Action *getHostDependence() const;
> +
> + /// Return true if the action has a single device dependence. If \a
> + /// DoNotConsiderHostActions is set, ignore the host dependence, if
> any, while
> + /// accounting for the number of dependences.
> + bool hasSingleDeviceDependence(bool DoNotConsiderHostActions = false)
> const;
> +
> + /// Return the single device dependence of this action. This function
> is only
> + /// expected to be called if a single device dependence exists. If \a
> + /// DoNotConsiderHostActions is set, a host dependence is allowed.
> + Action *
> + getSingleDeviceDependence(bool DoNotConsiderHostActions = false) const;
>
> - static bool classof(const Action *A) { return A->getKind() ==
> CudaHostClass; }
> + static bool classof(const Action *A) { return A->getKind() ==
> OffloadClass; }
> };
>
> class JobAction : public Action {
>
> Modified: cfe/trunk/include/clang/Driver/Compilation.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Compilation.h?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/include/clang/Driver/Compilation.h (original)
> +++ cfe/trunk/include/clang/Driver/Compilation.h Fri Jul 15 18:13:27 2016
> @@ -98,12 +98,7 @@ public:
> const Driver &getDriver() const { return TheDriver; }
>
> const ToolChain &getDefaultToolChain() const { return DefaultToolChain;
> }
> - const ToolChain *getOffloadingHostToolChain() const {
> - auto It = OrderedOffloadingToolchains.find(Action::OFK_Host);
> - if (It != OrderedOffloadingToolchains.end())
> - return It->second;
> - return nullptr;
> - }
> +
> unsigned isOffloadingHostKind(Action::OffloadKind Kind) const {
> return ActiveOffloadMask & Kind;
> }
> @@ -121,8 +116,8 @@ public:
> return OrderedOffloadingToolchains.equal_range(Kind);
> }
>
> - // Return an offload toolchain of the provided kind. Only one is
> expected to
> - // exist.
> + /// Return an offload toolchain of the provided kind. Only one is
> expected to
> + /// exist.
> template <Action::OffloadKind Kind>
> const ToolChain *getSingleOffloadToolChain() const {
> auto TCs = getOffloadToolChains<Kind>();
>
> Modified: cfe/trunk/include/clang/Driver/Driver.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Driver.h?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/include/clang/Driver/Driver.h (original)
> +++ cfe/trunk/include/clang/Driver/Driver.h Fri Jul 15 18:13:27 2016
> @@ -394,12 +394,13 @@ public:
> /// BuildJobsForAction - Construct the jobs to perform for the action
> \p A and
> /// return an InputInfo for the result of running \p A. Will only
> construct
> /// jobs for a given (Action, ToolChain, BoundArch) tuple once.
> - InputInfo BuildJobsForAction(Compilation &C, const Action *A,
> - const ToolChain *TC, const char *BoundArch,
> - bool AtTopLevel, bool MultipleArchs,
> - const char *LinkingOutput,
> - std::map<std::pair<const Action *,
> std::string>,
> - InputInfo> &CachedResults) const;
> + InputInfo
> + BuildJobsForAction(Compilation &C, const Action *A, const ToolChain *TC,
> + const char *BoundArch, bool AtTopLevel, bool
> MultipleArchs,
> + const char *LinkingOutput,
> + std::map<std::pair<const Action *, std::string>,
> InputInfo>
> + &CachedResults,
> + bool BuildForOffloadDevice) const;
>
> /// Returns the default name for linked images (e.g., "a.out").
> const char *getDefaultImageName() const;
> @@ -415,12 +416,11 @@ public:
> /// \param BoundArch - The bound architecture.
> /// \param AtTopLevel - Whether this is a "top-level" action.
> /// \param MultipleArchs - Whether multiple -arch options were supplied.
> - const char *GetNamedOutputPath(Compilation &C,
> - const JobAction &JA,
> - const char *BaseInput,
> - const char *BoundArch,
> - bool AtTopLevel,
> - bool MultipleArchs) const;
> + /// \param NormalizedTriple - The normalized triple of the relevant
> target.
> + const char *GetNamedOutputPath(Compilation &C, const JobAction &JA,
> + const char *BaseInput, const char
> *BoundArch,
> + bool AtTopLevel, bool MultipleArchs,
> + StringRef NormalizedTriple) const;
>
> /// GetTemporaryPath - Return the pathname of a temporary file to use
> /// as part of compilation; the file will have the given prefix and
> suffix.
> @@ -467,7 +467,8 @@ private:
> const char *BoundArch, bool AtTopLevel, bool MultipleArchs,
> const char *LinkingOutput,
> std::map<std::pair<const Action *, std::string>, InputInfo>
> - &CachedResults) const;
> + &CachedResults,
> + bool BuildForOffloadDevice) const;
>
> public:
> /// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and
>
> Modified: cfe/trunk/lib/Driver/Action.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Action.cpp?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Driver/Action.cpp (original)
> +++ cfe/trunk/lib/Driver/Action.cpp Fri Jul 15 18:13:27 2016
> @@ -8,6 +8,7 @@
>
> //===----------------------------------------------------------------------===//
>
> #include "clang/Driver/Action.h"
> +#include "clang/Driver/ToolChain.h"
> #include "llvm/ADT/StringSwitch.h"
> #include "llvm/Support/ErrorHandling.h"
> #include "llvm/Support/Regex.h"
> @@ -21,8 +22,8 @@ const char *Action::getClassName(ActionC
> switch (AC) {
> case InputClass: return "input";
> case BindArchClass: return "bind-arch";
> - case CudaDeviceClass: return "cuda-device";
> - case CudaHostClass: return "cuda-host";
> + case OffloadClass:
> + return "offload";
> case PreprocessJobClass: return "preprocessor";
> case PrecompileJobClass: return "precompiler";
> case AnalyzeJobClass: return "analyzer";
> @@ -40,6 +41,82 @@ const char *Action::getClassName(ActionC
> llvm_unreachable("invalid class");
> }
>
> +void Action::propagateDeviceOffloadInfo(OffloadKind OKind, const char
> *OArch) {
> + // Offload action set its own kinds on their dependences.
> + if (Kind == OffloadClass)
> + return;
> +
> + assert((OffloadingDeviceKind == OKind || OffloadingDeviceKind ==
> OFK_None) &&
> + "Setting device kind to a different device??");
> + assert(!ActiveOffloadKindMask && "Setting a device kind in a host
> action??");
> + OffloadingDeviceKind = OKind;
> + OffloadingArch = OArch;
> +
> + for (auto *A : Inputs)
> + A->propagateDeviceOffloadInfo(OffloadingDeviceKind, OArch);
> +}
> +
> +void Action::propagateHostOffloadInfo(unsigned OKinds, const char *OArch)
> {
> + // Offload action set its own kinds on their dependences.
> + if (Kind == OffloadClass)
> + return;
> +
> + assert(OffloadingDeviceKind == OFK_None &&
> + "Setting a host kind in a device action.");
> + ActiveOffloadKindMask |= OKinds;
> + OffloadingArch = OArch;
> +
> + for (auto *A : Inputs)
> + A->propagateHostOffloadInfo(ActiveOffloadKindMask, OArch);
> +}
> +
> +void Action::propagateOffloadInfo(const Action *A) {
> + if (unsigned HK = A->getOffloadingHostActiveKinds())
> + propagateHostOffloadInfo(HK, A->getOffloadingArch());
> + else
> + propagateDeviceOffloadInfo(A->getOffloadingDeviceKind(),
> + A->getOffloadingArch());
> +}
> +
> +std::string Action::getOffloadingKindPrefix() const {
> + switch (OffloadingDeviceKind) {
> + case OFK_None:
> + break;
> + case OFK_Host:
> + llvm_unreachable("Host kind is not an offloading device kind.");
> + break;
> + case OFK_Cuda:
> + return "device-cuda";
> +
> + // TODO: Add other programming models here.
> + }
> +
> + if (!ActiveOffloadKindMask)
> + return "";
> +
> + std::string Res("host");
> + if (ActiveOffloadKindMask & OFK_Cuda)
> + Res += "-cuda";
> +
> + // TODO: Add other programming models here.
> +
> + return Res;
> +}
> +
> +std::string
> +Action::getOffloadingFileNamePrefix(StringRef NormalizedTriple) const {
> + // A file prefix is only generated for device actions and consists of
> the
> + // offload kind and triple.
> + if (!OffloadingDeviceKind)
> + return "";
> +
> + std::string Res("-");
> + Res += getOffloadingKindPrefix();
> + Res += "-";
> + Res += NormalizedTriple;
> + return Res;
> +}
> +
> void InputAction::anchor() {}
>
> InputAction::InputAction(const Arg &_Input, types::ID _Type)
> @@ -51,16 +128,138 @@ void BindArchAction::anchor() {}
> BindArchAction::BindArchAction(Action *Input, const char *_ArchName)
> : Action(BindArchClass, Input), ArchName(_ArchName) {}
>
> -void CudaDeviceAction::anchor() {}
> +void OffloadAction::anchor() {}
> +
> +OffloadAction::OffloadAction(const HostDependence &HDep)
> + : Action(OffloadClass, HDep.getAction()), HostTC(HDep.getToolChain())
> {
> + OffloadingArch = HDep.getBoundArch();
> + ActiveOffloadKindMask = HDep.getOffloadKinds();
> + HDep.getAction()->propagateHostOffloadInfo(HDep.getOffloadKinds(),
> + HDep.getBoundArch());
> +};
> +
> +OffloadAction::OffloadAction(const DeviceDependences &DDeps, types::ID Ty)
> + : Action(OffloadClass, DDeps.getActions(), Ty),
> + DevToolChains(DDeps.getToolChains()) {
> + auto &OKinds = DDeps.getOffloadKinds();
> + auto &BArchs = DDeps.getBoundArchs();
> +
> + // If all inputs agree on the same kind, use it also for this action.
> + if (llvm::all_of(OKinds, [&](OffloadKind K) { return K ==
> OKinds.front(); }))
> + OffloadingDeviceKind = OKinds.front();
> +
> + // If we have a single dependency, inherit the architecture from it.
> + if (OKinds.size() == 1)
> + OffloadingArch = BArchs.front();
> +
> + // Propagate info to the dependencies.
> + for (unsigned i = 0, e = getInputs().size(); i != e; ++i)
> + getInputs()[i]->propagateDeviceOffloadInfo(OKinds[i], BArchs[i]);
> +}
> +
> +OffloadAction::OffloadAction(const HostDependence &HDep,
> + const DeviceDependences &DDeps)
> + : Action(OffloadClass, HDep.getAction()), HostTC(HDep.getToolChain()),
> + DevToolChains(DDeps.getToolChains()) {
> + // We use the kinds of the host dependence for this action.
> + OffloadingArch = HDep.getBoundArch();
> + ActiveOffloadKindMask = HDep.getOffloadKinds();
> + HDep.getAction()->propagateHostOffloadInfo(HDep.getOffloadKinds(),
> + HDep.getBoundArch());
> +
> + // Add device inputs and propagate info to the device actions. Do work
> only if
> + // we have dependencies.
> + for (unsigned i = 0, e = DDeps.getActions().size(); i != e; ++i)
> + if (auto *A = DDeps.getActions()[i]) {
> + getInputs().push_back(A);
> + A->propagateDeviceOffloadInfo(DDeps.getOffloadKinds()[i],
> + DDeps.getBoundArchs()[i]);
> + }
> +}
> +
> +void OffloadAction::doOnHostDependence(const OffloadActionWorkTy &Work)
> const {
> + if (!HostTC)
> + return;
> + assert(!getInputs().empty() && "No dependencies for offload action??");
> + auto *A = getInputs().front();
> + Work(A, HostTC, A->getOffloadingArch());
> +}
>
> -CudaDeviceAction::CudaDeviceAction(Action *Input, clang::CudaArch Arch,
> - bool AtTopLevel)
> - : Action(CudaDeviceClass, Input), GpuArch(Arch),
> AtTopLevel(AtTopLevel) {}
> +void OffloadAction::doOnEachDeviceDependence(
> + const OffloadActionWorkTy &Work) const {
> + auto I = getInputs().begin();
> + auto E = getInputs().end();
> + if (I == E)
> + return;
> +
> + // We expect to have the same number of input dependences and device
> tool
> + // chains, except if we also have a host dependence. In that case we
> have one
> + // more dependence than we have device tool chains.
> + assert(getInputs().size() == DevToolChains.size() + (HostTC ? 1 : 0) &&
> + "Sizes of action dependences and toolchains are not
> consistent!");
> +
> + // Skip host action
> + if (HostTC)
> + ++I;
> +
> + auto TI = DevToolChains.begin();
> + for (; I != E; ++I, ++TI)
> + Work(*I, *TI, (*I)->getOffloadingArch());
> +}
> +
> +void OffloadAction::doOnEachDependence(const OffloadActionWorkTy &Work)
> const {
> + doOnHostDependence(Work);
> + doOnEachDeviceDependence(Work);
> +}
> +
> +void OffloadAction::doOnEachDependence(bool IsHostDependence,
> + const OffloadActionWorkTy &Work)
> const {
> + if (IsHostDependence)
> + doOnHostDependence(Work);
> + else
> + doOnEachDeviceDependence(Work);
> +}
>
> -void CudaHostAction::anchor() {}
> +bool OffloadAction::hasHostDependence() const { return HostTC != nullptr;
> }
>
> -CudaHostAction::CudaHostAction(Action *Input, const ActionList
> &DeviceActions)
> - : Action(CudaHostClass, Input), DeviceActions(DeviceActions) {}
> +Action *OffloadAction::getHostDependence() const {
> + assert(hasHostDependence() && "Host dependence does not exist!");
> + assert(!getInputs().empty() && "No dependencies for offload action??");
> + return HostTC ? getInputs().front() : nullptr;
> +}
> +
> +bool OffloadAction::hasSingleDeviceDependence(
> + bool DoNotConsiderHostActions) const {
> + if (DoNotConsiderHostActions)
> + return getInputs().size() == (HostTC ? 2 : 1);
> + return !HostTC && getInputs().size() == 1;
> +}
> +
> +Action *
> +OffloadAction::getSingleDeviceDependence(bool DoNotConsiderHostActions)
> const {
> + assert(hasSingleDeviceDependence(DoNotConsiderHostActions) &&
> + "Single device dependence does not exist!");
> + // The previous assert ensures the number of entries in getInputs() is
> + // consistent with what we are doing here.
> + return HostTC ? getInputs()[1] : getInputs().front();
> +}
> +
> +void OffloadAction::DeviceDependences::add(Action &A, const ToolChain &TC,
> + const char *BoundArch,
> + OffloadKind OKind) {
> + DeviceActions.push_back(&A);
> + DeviceToolChains.push_back(&TC);
> + DeviceBoundArchs.push_back(BoundArch);
> + DeviceOffloadKinds.push_back(OKind);
> +}
> +
> +OffloadAction::HostDependence::HostDependence(Action &A, const ToolChain
> &TC,
> + const char *BoundArch,
> + const DeviceDependences
> &DDeps)
> + : HostAction(A), HostToolChain(TC), HostBoundArch(BoundArch) {
> + for (auto K : DDeps.getOffloadKinds())
> + HostOffloadKinds |= K;
> +}
>
> void JobAction::anchor() {}
>
>
> Modified: cfe/trunk/lib/Driver/Driver.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Driver.cpp?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Driver/Driver.cpp (original)
> +++ cfe/trunk/lib/Driver/Driver.cpp Fri Jul 15 18:13:27 2016
> @@ -435,7 +435,9 @@ void Driver::CreateOffloadingDeviceToolC
> })) {
> const ToolChain &TC = getToolChain(
> C.getInputArgs(),
> -
> llvm::Triple(C.getOffloadingHostToolChain()->getTriple().isArch64Bit()
> + llvm::Triple(C.getSingleOffloadToolChain<Action::OFK_Host>()
> + ->getTriple()
> + .isArch64Bit()
> ? "nvptx64-nvidia-cuda"
> : "nvptx-nvidia-cuda"));
> C.addOffloadDeviceToolChain(&TC, Action::OFK_Cuda);
> @@ -1022,19 +1024,33 @@ static unsigned PrintActions1(const Comp
> } else if (BindArchAction *BIA = dyn_cast<BindArchAction>(A)) {
> os << '"' << BIA->getArchName() << '"' << ", {"
> << PrintActions1(C, *BIA->input_begin(), Ids) << "}";
> - } else if (CudaDeviceAction *CDA = dyn_cast<CudaDeviceAction>(A)) {
> - CudaArch Arch = CDA->getGpuArch();
> - if (Arch != CudaArch::UNKNOWN)
> - os << "'" << CudaArchToString(Arch) << "', ";
> - os << "{" << PrintActions1(C, *CDA->input_begin(), Ids) << "}";
> + } else if (OffloadAction *OA = dyn_cast<OffloadAction>(A)) {
> + bool IsFirst = true;
> + OA->doOnEachDependence(
> + [&](Action *A, const ToolChain *TC, const char *BoundArch) {
> + // E.g. for two CUDA device dependences whose bound arch is
> sm_20 and
> + // sm_35 this will generate:
> + // "cuda-device" (nvptx64-nvidia-cuda:sm_20) {#ID},
> "cuda-device"
> + // (nvptx64-nvidia-cuda:sm_35) {#ID}
> + if (!IsFirst)
> + os << ", ";
> + os << '"';
> + if (TC)
> + os << A->getOffloadingKindPrefix();
> + else
> + os << "host";
> + os << " (";
> + os << TC->getTriple().normalize();
> +
> + if (BoundArch)
> + os << ":" << BoundArch;
> + os << ")";
> + os << '"';
> + os << " {" << PrintActions1(C, A, Ids) << "}";
> + IsFirst = false;
> + });
> } else {
> - const ActionList *AL;
> - if (CudaHostAction *CHA = dyn_cast<CudaHostAction>(A)) {
> - os << "{" << PrintActions1(C, *CHA->input_begin(), Ids) << "}"
> - << ", gpu binaries ";
> - AL = &CHA->getDeviceActions();
> - } else
> - AL = &A->getInputs();
> + const ActionList *AL = &A->getInputs();
>
> if (AL->size()) {
> const char *Prefix = "{";
> @@ -1047,10 +1063,24 @@ static unsigned PrintActions1(const Comp
> os << "{}";
> }
>
> + // Append offload info for all options other than the offloading action
> + // itself (e.g. (cuda-device, sm_20) or (cuda-host)).
> + std::string offload_str;
> + llvm::raw_string_ostream offload_os(offload_str);
> + if (!isa<OffloadAction>(A)) {
> + auto S = A->getOffloadingKindPrefix();
> + if (!S.empty()) {
> + offload_os << ", (" << S;
> + if (A->getOffloadingArch())
> + offload_os << ", " << A->getOffloadingArch();
> + offload_os << ")";
> + }
> + }
> +
> unsigned Id = Ids.size();
> Ids[A] = Id;
> llvm::errs() << Id << ": " << os.str() << ", "
> - << types::getTypeName(A->getType()) << "\n";
> + << types::getTypeName(A->getType()) << offload_os.str() <<
> "\n";
>
> return Id;
> }
> @@ -1378,8 +1408,12 @@ static Action *buildCudaActions(Compilat
> PartialCompilationArg &&
>
> PartialCompilationArg->getOption().matches(options::OPT_cuda_device_only);
>
> - if (CompileHostOnly)
> - return C.MakeAction<CudaHostAction>(HostAction, ActionList());
> + if (CompileHostOnly) {
> + OffloadAction::HostDependence HDep(
> + *HostAction, *C.getSingleOffloadToolChain<Action::OFK_Host>(),
> + /*BoundArch=*/nullptr, Action::OFK_Cuda);
> + return C.MakeAction<OffloadAction>(HDep);
> + }
>
> // Collect all cuda_gpu_arch parameters, removing duplicates.
> SmallVector<CudaArch, 4> GpuArchList;
> @@ -1408,8 +1442,6 @@ static Action *buildCudaActions(Compilat
> CudaDeviceInputs.push_back(std::make_pair(types::TY_CUDA_DEVICE,
> InputArg));
>
> // Build actions for all device inputs.
> - assert(C.getSingleOffloadToolChain<Action::OFK_Cuda>() &&
> - "Missing toolchain for device-side compilation.");
> ActionList CudaDeviceActions;
> C.getDriver().BuildActions(C, Args, CudaDeviceInputs,
> CudaDeviceActions);
> assert(GpuArchList.size() == CudaDeviceActions.size() &&
> @@ -1421,6 +1453,8 @@ static Action *buildCudaActions(Compilat
> return a->getKind() != Action::AssembleJobClass;
> });
>
> + const ToolChain *CudaTC =
> C.getSingleOffloadToolChain<Action::OFK_Cuda>();
> +
> // Figure out what to do with device actions -- pass them as inputs to
> the
> // host action or run each of them independently.
> if (PartialCompilation || CompileDeviceOnly) {
> @@ -1436,10 +1470,13 @@ static Action *buildCudaActions(Compilat
> return nullptr;
> }
>
> - for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I)
> -
> Actions.push_back(C.MakeAction<CudaDeviceAction>(CudaDeviceActions[I],
> - GpuArchList[I],
> - /* AtTopLevel */
> true));
> + for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) {
> + OffloadAction::DeviceDependences DDep;
> + DDep.add(*CudaDeviceActions[I], *CudaTC,
> CudaArchToString(GpuArchList[I]),
> + Action::OFK_Cuda);
> + Actions.push_back(
> + C.MakeAction<OffloadAction>(DDep,
> CudaDeviceActions[I]->getType()));
> + }
> // Kill host action in case of device-only compilation.
> if (CompileDeviceOnly)
> return nullptr;
> @@ -1459,19 +1496,23 @@ static Action *buildCudaActions(Compilat
> Action* BackendAction = AssembleAction->getInputs()[0];
> assert(BackendAction->getType() == types::TY_PP_Asm);
>
> - for (const auto& A : {AssembleAction, BackendAction}) {
> - DeviceActions.push_back(C.MakeAction<CudaDeviceAction>(
> - A, GpuArchList[I], /* AtTopLevel */ false));
> + for (auto &A : {AssembleAction, BackendAction}) {
> + OffloadAction::DeviceDependences DDep;
> + DDep.add(*A, *CudaTC, CudaArchToString(GpuArchList[I]),
> Action::OFK_Cuda);
> + DeviceActions.push_back(C.MakeAction<OffloadAction>(DDep,
> A->getType()));
> }
> }
> - auto FatbinAction = C.MakeAction<CudaDeviceAction>(
> - C.MakeAction<LinkJobAction>(DeviceActions, types::TY_CUDA_FATBIN),
> - CudaArch::UNKNOWN,
> - /* AtTopLevel = */ false);
> + auto FatbinAction =
> + C.MakeAction<LinkJobAction>(DeviceActions, types::TY_CUDA_FATBIN);
> +
> // Return a new host action that incorporates original host action and
> all
> // device actions.
> - return C.MakeAction<CudaHostAction>(std::move(HostAction),
> - ActionList({FatbinAction}));
> + OffloadAction::HostDependence HDep(
> + *HostAction, *C.getSingleOffloadToolChain<Action::OFK_Host>(),
> + /*BoundArch=*/nullptr, Action::OFK_Cuda);
> + OffloadAction::DeviceDependences DDep;
> + DDep.add(*FatbinAction, *CudaTC, /*BoundArch=*/nullptr,
> Action::OFK_Cuda);
> + return C.MakeAction<OffloadAction>(HDep, DDep);
> }
>
> void Driver::BuildActions(Compilation &C, DerivedArgList &Args,
> @@ -1580,6 +1621,9 @@ void Driver::BuildActions(Compilation &C
> YcArg = YuArg = nullptr;
> }
>
> + // Track the host offload kinds used on this compilation.
> + unsigned CompilationActiveOffloadHostKinds = 0u;
> +
> // Construct the actions to perform.
> ActionList LinkerInputs;
>
> @@ -1648,6 +1692,9 @@ void Driver::BuildActions(Compilation &C
> ? phases::Compile
> : FinalPhase;
>
> + // Track the host offload kinds used on this input.
> + unsigned InputActiveOffloadHostKinds = 0u;
> +
> // Build the pipeline for this file.
> Action *Current = C.MakeAction<InputAction>(*InputArg, InputType);
> for (SmallVectorImpl<phases::ID>::iterator i = PL.begin(), e =
> PL.end();
> @@ -1679,21 +1726,36 @@ void Driver::BuildActions(Compilation &C
> Current = buildCudaActions(C, Args, InputArg, Current, Actions);
> if (!Current)
> break;
> +
> + // We produced a CUDA action for this input, so the host has to
> support
> + // CUDA.
> + InputActiveOffloadHostKinds |= Action::OFK_Cuda;
> + CompilationActiveOffloadHostKinds |= Action::OFK_Cuda;
> }
>
> if (Current->getType() == types::TY_Nothing)
> break;
> }
>
> - // If we ended with something, add to the output list.
> - if (Current)
> + // If we ended with something, add to the output list. Also,
> propagate the
> + // offload information to the top-level host action related with the
> current
> + // input.
> + if (Current) {
> + if (InputActiveOffloadHostKinds)
> + Current->propagateHostOffloadInfo(InputActiveOffloadHostKinds,
> + /*BoundArch=*/nullptr);
> Actions.push_back(Current);
> + }
> }
>
> - // Add a link action if necessary.
> - if (!LinkerInputs.empty())
> + // Add a link action if necessary and propagate the offload information
> for
> + // the current compilation.
> + if (!LinkerInputs.empty()) {
> Actions.push_back(
> C.MakeAction<LinkJobAction>(LinkerInputs, types::TY_Image));
> +
> Actions.back()->propagateHostOffloadInfo(CompilationActiveOffloadHostKinds,
> + /*BoundArch=*/nullptr);
> + }
>
> // If we are linking, claim any options which are obviously only used
> for
> // compilation.
> @@ -1829,7 +1891,8 @@ void Driver::BuildJobs(Compilation &C) c
> /*BoundArch*/ nullptr,
> /*AtTopLevel*/ true,
> /*MultipleArchs*/ ArchNames.size() > 1,
> - /*LinkingOutput*/ LinkingOutput, CachedResults);
> + /*LinkingOutput*/ LinkingOutput, CachedResults,
> + /*BuildForOffloadDevice*/ false);
> }
>
> // If the user passed -Qunused-arguments or there were errors, don't
> warn
> @@ -1878,7 +1941,28 @@ void Driver::BuildJobs(Compilation &C) c
> }
> }
> }
> -
> +/// Collapse an offloading action looking for a job of the given type.
> The input
> +/// action is changed to the input of the collapsed sequence. If we
> effectively
> +/// had a collapse return the corresponding offloading action, otherwise
> return
> +/// null.
> +template <typename T>
> +static OffloadAction *collapseOffloadingAction(Action *&CurAction) {
> + if (!CurAction)
> + return nullptr;
> + if (auto *OA = dyn_cast<OffloadAction>(CurAction)) {
> + if (OA->hasHostDependence())
> + if (auto *HDep = dyn_cast<T>(OA->getHostDependence())) {
> + CurAction = HDep;
> + return OA;
> + }
> + if (OA->hasSingleDeviceDependence())
> + if (auto *DDep = dyn_cast<T>(OA->getSingleDeviceDependence())) {
> + CurAction = DDep;
> + return OA;
> + }
> + }
> + return nullptr;
> +}
> // Returns a Tool for a given JobAction. In case the action and its
> // predecessors can be combined, updates Inputs with the inputs of the
> // first combined action. If one of the collapsed actions is a
> @@ -1888,34 +1972,39 @@ static const Tool *selectToolForJob(Comp
> bool EmbedBitcode, const ToolChain
> *TC,
> const JobAction *JA,
> const ActionList *&Inputs,
> - const CudaHostAction *&CollapsedCHA) {
> + ActionList &CollapsedOffloadAction) {
> const Tool *ToolForJob = nullptr;
> - CollapsedCHA = nullptr;
> + CollapsedOffloadAction.clear();
>
> // See if we should look for a compiler with an integrated assembler.
> We match
> // bottom up, so what we are actually looking for is an assembler job
> with a
> // compiler input.
>
> + // Look through offload actions between assembler and backend actions.
> + Action *BackendJA = (isa<AssembleJobAction>(JA) && Inputs->size() == 1)
> + ? *Inputs->begin()
> + : nullptr;
> + auto *BackendOA = collapseOffloadingAction<BackendJobAction>(BackendJA);
> +
> if (TC->useIntegratedAs() && !SaveTemps &&
> !C.getArgs().hasArg(options::OPT_via_file_asm) &&
> !C.getArgs().hasArg(options::OPT__SLASH_FA) &&
> - !C.getArgs().hasArg(options::OPT__SLASH_Fa) &&
> - isa<AssembleJobAction>(JA) && Inputs->size() == 1 &&
> - isa<BackendJobAction>(*Inputs->begin())) {
> + !C.getArgs().hasArg(options::OPT__SLASH_Fa) && BackendJA &&
> + isa<BackendJobAction>(BackendJA)) {
> // A BackendJob is always preceded by a CompileJob, and without
> -save-temps
> // or -fembed-bitcode, they will always get combined together, so
> instead of
> // checking the backend tool, check if the tool for the CompileJob
> has an
> // integrated assembler. For -fembed-bitcode, CompileJob is still
> used to
> // look up tools for BackendJob, but they need to match before we can
> split
> // them.
> - const ActionList *BackendInputs = &(*Inputs)[0]->getInputs();
> - // Compile job may be wrapped in CudaHostAction, extract it if
> - // that's the case and update CollapsedCHA if we combine phases.
> - CudaHostAction *CHA =
> dyn_cast<CudaHostAction>(*BackendInputs->begin());
> - JobAction *CompileJA = cast<CompileJobAction>(
> - CHA ? *CHA->input_begin() : *BackendInputs->begin());
> - assert(CompileJA && "Backend job is not preceeded by compile job.");
> - const Tool *Compiler = TC->SelectTool(*CompileJA);
> +
> + // Look through offload actions between backend and compile actions.
> + Action *CompileJA = *BackendJA->getInputs().begin();
> + auto *CompileOA =
> collapseOffloadingAction<CompileJobAction>(CompileJA);
> +
> + assert(CompileJA && isa<CompileJobAction>(CompileJA) &&
> + "Backend job is not preceeded by compile job.");
> + const Tool *Compiler =
> TC->SelectTool(*cast<CompileJobAction>(CompileJA));
> if (!Compiler)
> return nullptr;
> // When using -fembed-bitcode, it is required to have the same tool
> (clang)
> @@ -1929,7 +2018,12 @@ static const Tool *selectToolForJob(Comp
> if (Compiler->hasIntegratedAssembler()) {
> Inputs = &CompileJA->getInputs();
> ToolForJob = Compiler;
> - CollapsedCHA = CHA;
> + // Save the collapsed offload actions because they may still contain
> + // device actions.
> + if (CompileOA)
> + CollapsedOffloadAction.push_back(CompileOA);
> + if (BackendOA)
> + CollapsedOffloadAction.push_back(BackendOA);
> }
> }
>
> @@ -1939,20 +2033,23 @@ static const Tool *selectToolForJob(Comp
> if (isa<BackendJobAction>(JA)) {
> // Check if the compiler supports emitting LLVM IR.
> assert(Inputs->size() == 1);
> - // Compile job may be wrapped in CudaHostAction, extract it if
> - // that's the case and update CollapsedCHA if we combine phases.
> - CudaHostAction *CHA = dyn_cast<CudaHostAction>(*Inputs->begin());
> - JobAction *CompileJA =
> - cast<CompileJobAction>(CHA ? *CHA->input_begin() :
> *Inputs->begin());
> - assert(CompileJA && "Backend job is not preceeded by compile job.");
> - const Tool *Compiler = TC->SelectTool(*CompileJA);
> +
> + // Look through offload actions between backend and compile actions.
> + Action *CompileJA = *JA->getInputs().begin();
> + auto *CompileOA =
> collapseOffloadingAction<CompileJobAction>(CompileJA);
> +
> + assert(CompileJA && isa<CompileJobAction>(CompileJA) &&
> + "Backend job is not preceeded by compile job.");
> + const Tool *Compiler =
> TC->SelectTool(*cast<CompileJobAction>(CompileJA));
> if (!Compiler)
> return nullptr;
> if (!Compiler->canEmitIR() ||
> (!SaveTemps && !EmbedBitcode)) {
> Inputs = &CompileJA->getInputs();
> ToolForJob = Compiler;
> - CollapsedCHA = CHA;
> +
> + if (CompileOA)
> + CollapsedOffloadAction.push_back(CompileOA);
> }
> }
>
> @@ -1963,12 +2060,21 @@ static const Tool *selectToolForJob(Comp
> // See if we should use an integrated preprocessor. We do so when we
> have
> // exactly one input, since this is the only use case we care about
> // (irrelevant since we don't support combine yet).
> - if (Inputs->size() == 1 && isa<PreprocessJobAction>(*Inputs->begin()) &&
> +
> + // Look through offload actions after preprocessing.
> + Action *PreprocessJA = (Inputs->size() == 1) ? *Inputs->begin() :
> nullptr;
> + auto *PreprocessOA =
> + collapseOffloadingAction<PreprocessJobAction>(PreprocessJA);
> +
> + if (PreprocessJA && isa<PreprocessJobAction>(PreprocessJA) &&
> !C.getArgs().hasArg(options::OPT_no_integrated_cpp) &&
> !C.getArgs().hasArg(options::OPT_traditional_cpp) && !SaveTemps &&
> !C.getArgs().hasArg(options::OPT_rewrite_objc) &&
> - ToolForJob->hasIntegratedCPP())
> - Inputs = &(*Inputs)[0]->getInputs();
> + ToolForJob->hasIntegratedCPP()) {
> + Inputs = &PreprocessJA->getInputs();
> + if (PreprocessOA)
> + CollapsedOffloadAction.push_back(PreprocessOA);
> + }
>
> return ToolForJob;
> }
> @@ -1976,8 +2082,8 @@ static const Tool *selectToolForJob(Comp
> InputInfo Driver::BuildJobsForAction(
> Compilation &C, const Action *A, const ToolChain *TC, const char
> *BoundArch,
> bool AtTopLevel, bool MultipleArchs, const char *LinkingOutput,
> - std::map<std::pair<const Action *, std::string>, InputInfo>
> &CachedResults)
> - const {
> + std::map<std::pair<const Action *, std::string>, InputInfo>
> &CachedResults,
> + bool BuildForOffloadDevice) const {
> // The bound arch is not necessarily represented in the toolchain's
> triple --
> // for example, armv7 and armv7s both map to the same triple -- so we
> need
> // both in our map.
> @@ -1991,9 +2097,9 @@ InputInfo Driver::BuildJobsForAction(
> if (CachedResult != CachedResults.end()) {
> return CachedResult->second;
> }
> - InputInfo Result =
> - BuildJobsForActionNoCache(C, A, TC, BoundArch, AtTopLevel,
> MultipleArchs,
> - LinkingOutput, CachedResults);
> + InputInfo Result = BuildJobsForActionNoCache(
> + C, A, TC, BoundArch, AtTopLevel, MultipleArchs, LinkingOutput,
> + CachedResults, BuildForOffloadDevice);
> CachedResults[ActionTC] = Result;
> return Result;
> }
> @@ -2001,21 +2107,65 @@ InputInfo Driver::BuildJobsForAction(
> InputInfo Driver::BuildJobsForActionNoCache(
> Compilation &C, const Action *A, const ToolChain *TC, const char
> *BoundArch,
> bool AtTopLevel, bool MultipleArchs, const char *LinkingOutput,
> - std::map<std::pair<const Action *, std::string>, InputInfo>
> &CachedResults)
> - const {
> + std::map<std::pair<const Action *, std::string>, InputInfo>
> &CachedResults,
> + bool BuildForOffloadDevice) const {
> llvm::PrettyStackTraceString CrashInfo("Building compilation jobs");
>
> - InputInfoList CudaDeviceInputInfos;
> - if (const CudaHostAction *CHA = dyn_cast<CudaHostAction>(A)) {
> - // Append outputs of device jobs to the input list.
> - for (const Action *DA : CHA->getDeviceActions()) {
> - CudaDeviceInputInfos.push_back(BuildJobsForAction(
> - C, DA, TC, nullptr, AtTopLevel,
> - /*MultipleArchs*/ false, LinkingOutput, CachedResults));
> - }
> - // Override current action with a real host compile action and
> continue
> - // processing it.
> - A = *CHA->input_begin();
> + InputInfoList OffloadDependencesInputInfo;
> + if (const OffloadAction *OA = dyn_cast<OffloadAction>(A)) {
> + // The offload action is expected to be used in four different
> situations.
> + //
> + // a) Set a toolchain/architecture/kind for a host action:
> + // Host Action 1 -> OffloadAction -> Host Action 2
> + //
> + // b) Set a toolchain/architecture/kind for a device action;
> + // Device Action 1 -> OffloadAction -> Device Action 2
> + //
> + // c) Specify a device dependences to a host action;
> + // Device Action 1 _
> + // \
> + // Host Action 1 ---> OffloadAction -> Host Action 2
> + //
> + // d) Specify a host dependence to a device action.
> + // Host Action 1 _
> + // \
> + // Device Action 1 ---> OffloadAction -> Device Action 2
> + //
> + // For a) and b), we just return the job generated for the
> dependence. For
> + // c) and d) we override the current action with the host/device
> dependence
> + // if the current toolchain is host/device and set the offload
> dependences
> + // info with the jobs obtained from the device/host dependence(s).
> +
> + // If there is a single device option, just generate the job for it.
> + if (OA->hasSingleDeviceDependence()) {
> + InputInfo DevA;
> + OA->doOnEachDeviceDependence([&](Action *DepA, const ToolChain
> *DepTC,
> + const char *DepBoundArch) {
> + DevA =
> + BuildJobsForAction(C, DepA, DepTC, DepBoundArch, AtTopLevel,
> + /*MultipleArchs*/ !!DepBoundArch,
> LinkingOutput,
> + CachedResults,
> /*BuildForOffloadDevice=*/true);
> + });
> + return DevA;
> + }
> +
> + // If 'Action 2' is host, we generate jobs for the device dependences
> and
> + // override the current action with the host dependence. Otherwise, we
> + // generate the host dependences and override the action with the
> device
> + // dependence. The dependences can't therefore be a top-level action.
> + OA->doOnEachDependence(
> + /*IsHostDependence=*/BuildForOffloadDevice,
> + [&](Action *DepA, const ToolChain *DepTC, const char
> *DepBoundArch) {
> + OffloadDependencesInputInfo.push_back(BuildJobsForAction(
> + C, DepA, DepTC, DepBoundArch, /*AtTopLevel=*/false,
> + /*MultipleArchs*/ !!DepBoundArch, LinkingOutput,
> CachedResults,
> + /*BuildForOffloadDevice=*/DepA->getOffloadingDeviceKind() !=
> + Action::OFK_None));
> + });
> +
> + A = BuildForOffloadDevice
> + ?
> OA->getSingleDeviceDependence(/*DoNotConsiderHostActions=*/true)
> + : OA->getHostDependence();
> }
>
> if (const InputAction *IA = dyn_cast<InputAction>(A)) {
> @@ -2042,41 +2192,34 @@ InputInfo Driver::BuildJobsForActionNoCa
> TC = &C.getDefaultToolChain();
>
> return BuildJobsForAction(C, *BAA->input_begin(), TC, ArchName,
> AtTopLevel,
> - MultipleArchs, LinkingOutput,
> CachedResults);
> + MultipleArchs, LinkingOutput, CachedResults,
> + BuildForOffloadDevice);
> }
>
> - if (const CudaDeviceAction *CDA = dyn_cast<CudaDeviceAction>(A)) {
> - // Initial processing of CudaDeviceAction carries host params.
> - // Call BuildJobsForAction() again, now with correct device
> parameters.
> - InputInfo II = BuildJobsForAction(
> - C, *CDA->input_begin(),
> C.getSingleOffloadToolChain<Action::OFK_Cuda>(),
> - CudaArchToString(CDA->getGpuArch()), CDA->isAtTopLevel(),
> - /*MultipleArchs=*/true, LinkingOutput, CachedResults);
> - // Currently II's Action is *CDA->input_begin(). Set it to CDA
> instead, so
> - // that one can retrieve II's GPU arch.
> - II.setAction(A);
> - return II;
> - }
>
> const ActionList *Inputs = &A->getInputs();
>
> const JobAction *JA = cast<JobAction>(A);
> - const CudaHostAction *CollapsedCHA = nullptr;
> + ActionList CollapsedOffloadActions;
> +
> const Tool *T =
> selectToolForJob(C, isSaveTempsEnabled(), embedBitcodeEnabled(),
> TC, JA,
> - Inputs, CollapsedCHA);
> + Inputs, CollapsedOffloadActions);
> if (!T)
> return InputInfo();
>
> - // If we've collapsed action list that contained CudaHostAction we
> - // need to build jobs for device-side inputs it may have held.
> - if (CollapsedCHA) {
> - for (const Action *DA : CollapsedCHA->getDeviceActions()) {
> - CudaDeviceInputInfos.push_back(BuildJobsForAction(
> - C, DA, TC, "", AtTopLevel,
> - /*MultipleArchs*/ false, LinkingOutput, CachedResults));
> - }
> - }
> + // If we've collapsed action list that contained OffloadAction we
> + // need to build jobs for host/device-side inputs it may have held.
> + for (const auto *OA : CollapsedOffloadActions)
> + cast<OffloadAction>(OA)->doOnEachDependence(
> + /*IsHostDependence=*/BuildForOffloadDevice,
> + [&](Action *DepA, const ToolChain *DepTC, const char
> *DepBoundArch) {
> + OffloadDependencesInputInfo.push_back(BuildJobsForAction(
> + C, DepA, DepTC, DepBoundArch, AtTopLevel,
> + /*MultipleArchs=*/!!DepBoundArch, LinkingOutput,
> CachedResults,
> + /*BuildForOffloadDevice=*/DepA->getOffloadingDeviceKind() !=
> + Action::OFK_None));
> + });
>
> // Only use pipes when there is exactly one input.
> InputInfoList InputInfos;
> @@ -2086,9 +2229,9 @@ InputInfo Driver::BuildJobsForActionNoCa
> // FIXME: Clean this up.
> bool SubJobAtTopLevel =
> AtTopLevel && (isa<DsymutilJobAction>(A) ||
> isa<VerifyJobAction>(A));
> - InputInfos.push_back(BuildJobsForAction(C, Input, TC, BoundArch,
> - SubJobAtTopLevel,
> MultipleArchs,
> - LinkingOutput,
> CachedResults));
> + InputInfos.push_back(BuildJobsForAction(
> + C, Input, TC, BoundArch, SubJobAtTopLevel, MultipleArchs,
> LinkingOutput,
> + CachedResults, BuildForOffloadDevice));
> }
>
> // Always use the first input as the base input.
> @@ -2099,9 +2242,10 @@ InputInfo Driver::BuildJobsForActionNoCa
> if (JA->getType() == types::TY_dSYM)
> BaseInput = InputInfos[0].getFilename();
>
> - // Append outputs of cuda device jobs to the input list
> - if (CudaDeviceInputInfos.size())
> - InputInfos.append(CudaDeviceInputInfos.begin(),
> CudaDeviceInputInfos.end());
> + // Append outputs of offload device jobs to the input list
> + if (!OffloadDependencesInputInfo.empty())
> + InputInfos.append(OffloadDependencesInputInfo.begin(),
> + OffloadDependencesInputInfo.end());
>
> // Determine the place to write output to, if any.
> InputInfo Result;
> @@ -2109,7 +2253,8 @@ InputInfo Driver::BuildJobsForActionNoCa
> Result = InputInfo(A, BaseInput);
> else
> Result = InputInfo(A, GetNamedOutputPath(C, *JA, BaseInput, BoundArch,
> - AtTopLevel, MultipleArchs),
> + AtTopLevel, MultipleArchs,
> + TC->getTriple().normalize()),
> BaseInput);
>
> if (CCCPrintBindings && !CCGenDiagnostics) {
> @@ -2169,7 +2314,8 @@ static const char *MakeCLOutputFilename(
> const char *Driver::GetNamedOutputPath(Compilation &C, const JobAction
> &JA,
> const char *BaseInput,
> const char *BoundArch, bool
> AtTopLevel,
> - bool MultipleArchs) const {
> + bool MultipleArchs,
> + StringRef NormalizedTriple) const {
> llvm::PrettyStackTraceString CrashInfo("Computing output path");
> // Output to a user requested destination?
> if (AtTopLevel && !isa<DsymutilJobAction>(JA) &&
> !isa<VerifyJobAction>(JA)) {
> @@ -2255,6 +2401,7 @@ const char *Driver::GetNamedOutputPath(C
> MakeCLOutputFilename(C.getArgs(), "", BaseName,
> types::TY_Image);
> } else if (MultipleArchs && BoundArch) {
> SmallString<128> Output(getDefaultImageName());
> + Output += JA.getOffloadingFileNamePrefix(NormalizedTriple);
> Output += "-";
> Output.append(BoundArch);
> NamedOutput = C.getArgs().MakeArgString(Output.c_str());
> @@ -2271,6 +2418,7 @@ const char *Driver::GetNamedOutputPath(C
> if (!types::appendSuffixForType(JA.getType()))
> End = BaseName.rfind('.');
> SmallString<128> Suffixed(BaseName.substr(0, End));
> + Suffixed += JA.getOffloadingFileNamePrefix(NormalizedTriple);
> if (MultipleArchs && BoundArch) {
> Suffixed += "-";
> Suffixed.append(BoundArch);
>
> Modified: cfe/trunk/lib/Driver/ToolChain.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChain.cpp?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Driver/ToolChain.cpp (original)
> +++ cfe/trunk/lib/Driver/ToolChain.cpp Fri Jul 15 18:13:27 2016
> @@ -248,8 +248,7 @@ Tool *ToolChain::getTool(Action::ActionC
>
> case Action::InputClass:
> case Action::BindArchClass:
> - case Action::CudaDeviceClass:
> - case Action::CudaHostClass:
> + case Action::OffloadClass:
> case Action::LipoJobClass:
> case Action::DsymutilJobClass:
> case Action::VerifyDebugInfoJobClass:
>
> Modified: cfe/trunk/lib/Driver/Tools.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Driver/Tools.cpp (original)
> +++ cfe/trunk/lib/Driver/Tools.cpp Fri Jul 15 18:13:27 2016
> @@ -296,12 +296,45 @@ static bool forwardToGCC(const Option &O
> !O.hasFlag(options::DriverOption) &&
> !O.hasFlag(options::LinkerInput);
> }
>
> +/// Add the C++ include args of other offloading toolchains. If this is a
> host
> +/// job, the device toolchains are added. If this is a device job, the
> host
> +/// toolchains will be added.
> +static void addExtraOffloadCXXStdlibIncludeArgs(Compilation &C,
> + const JobAction &JA,
> + const ArgList &Args,
> + ArgStringList &CmdArgs) {
> +
> + if (JA.isHostOffloading(Action::OFK_Cuda))
> + C.getSingleOffloadToolChain<Action::OFK_Cuda>()
> + ->AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
> + else if (JA.isDeviceOffloading(Action::OFK_Cuda))
> + C.getSingleOffloadToolChain<Action::OFK_Host>()
> + ->AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
> +
> + // TODO: Add support for other programming models here.
> +}
> +
> +/// Add the include args that are specific of each offloading programming
> model.
> +static void addExtraOffloadSpecificIncludeArgs(Compilation &C,
> + const JobAction &JA,
> + const ArgList &Args,
> + ArgStringList &CmdArgs) {
> +
> + if (JA.isHostOffloading(Action::OFK_Cuda))
> + C.getSingleOffloadToolChain<Action::OFK_Host>()->AddCudaIncludeArgs(
> + Args, CmdArgs);
> + else if (JA.isDeviceOffloading(Action::OFK_Cuda))
> + C.getSingleOffloadToolChain<Action::OFK_Cuda>()->AddCudaIncludeArgs(
> + Args, CmdArgs);
> +
> + // TODO: Add support for other programming models here.
> +}
> +
> void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA,
> const Driver &D, const ArgList &Args,
> ArgStringList &CmdArgs,
> const InputInfo &Output,
> - const InputInfoList &Inputs,
> - const ToolChain *AuxToolChain) const {
> + const InputInfoList &Inputs) const {
> Arg *A;
> const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU();
>
> @@ -566,31 +599,27 @@ void Clang::AddPreprocessingOptions(Comp
> // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling
> ObjC++.
> addDirectoryList(Args, CmdArgs, "-objcxx-isystem",
> "OBJCPLUS_INCLUDE_PATH");
>
> - // Optional AuxToolChain indicates that we need to include headers
> - // for more than one target. If that's the case, add include paths
> - // from AuxToolChain right after include paths of the same kind for
> - // the current target.
> + // While adding the include arguments, we also attempt to retrieve the
> + // arguments of related offloading toolchains or arguments that are
> specific
> + // of an offloading programming model.
>
> // Add C++ include arguments, if needed.
> if (types::isCXX(Inputs[0].getType())) {
> getToolChain().AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
> - if (AuxToolChain)
> - AuxToolChain->AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
> + addExtraOffloadCXXStdlibIncludeArgs(C, JA, Args, CmdArgs);
> }
>
> // Add system include arguments for all targets but IAMCU.
> if (!IsIAMCU) {
> getToolChain().AddClangSystemIncludeArgs(Args, CmdArgs);
> - if (AuxToolChain)
> - AuxToolChain->AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
> + addExtraOffloadCXXStdlibIncludeArgs(C, JA, Args, CmdArgs);
>
This doesn't make much sense to me: we already added the C++ stdlib
includes a few lines above for C++ compiles. Should this be adding the
(non-C++) system include args instead?
> } else {
> // For IAMCU add special include arguments.
> getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs);
> }
>
> - // Add CUDA include arguments, if needed.
> - if (types::isCuda(Inputs[0].getType()))
> - getToolChain().AddCudaIncludeArgs(Args, CmdArgs);
> + // Add offload include arguments, if needed.
> + addExtraOffloadSpecificIncludeArgs(C, JA, Args, CmdArgs);
> }
>
> // FIXME: Move to target hook.
> @@ -3799,7 +3828,7 @@ void Clang::ConstructJob(Compilation &C,
> // CUDA compilation may have multiple inputs (source file + results of
> // device-side compilations). All other jobs are expected to have
> exactly one
> // input.
> - bool IsCuda = types::isCuda(Input.getType());
> + bool IsCuda = JA.isOffloading(Action::OFK_Cuda);
> assert((IsCuda || Inputs.size() == 1) && "Unable to handle multiple
> inputs.");
>
> // C++ is not supported for IAMCU.
> @@ -3815,21 +3844,21 @@ void Clang::ConstructJob(Compilation &C,
> CmdArgs.push_back("-triple");
> CmdArgs.push_back(Args.MakeArgString(TripleStr));
>
> - const ToolChain *AuxToolChain = nullptr;
> if (IsCuda) {
> - // FIXME: We need a (better) way to pass information about
> - // particular compilation pass we're constructing here. For now we
> - // can check which toolchain we're using and pick the other one to
> - // extract the triple.
> - if (&getToolChain() ==
> C.getSingleOffloadToolChain<Action::OFK_Cuda>())
> - AuxToolChain = C.getOffloadingHostToolChain();
> - else if (&getToolChain() == C.getOffloadingHostToolChain())
> - AuxToolChain = C.getSingleOffloadToolChain<Action::OFK_Cuda>();
> - else
> - llvm_unreachable("Can't figure out CUDA compilation mode.");
> - assert(AuxToolChain != nullptr && "No aux toolchain.");
> + // We have to pass the triple of the host if compiling for a CUDA
> device and
> + // vice-versa.
> + StringRef NormalizedTriple;
> + if (JA.isDeviceOffloading(Action::OFK_Cuda))
> + NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>()
> + ->getTriple()
> + .normalize();
> + else
> + NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Cuda>()
> + ->getTriple()
> + .normalize();
> +
> CmdArgs.push_back("-aux-triple");
> -
> CmdArgs.push_back(Args.MakeArgString(AuxToolChain->getTriple().str()));
> + CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
> }
>
> if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm ||
> @@ -4718,8 +4747,7 @@ void Clang::ConstructJob(Compilation &C,
> //
> // FIXME: Support -fpreprocessed
> if (types::getPreprocessedType(InputType) != types::TY_INVALID)
> - AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs,
> - AuxToolChain);
> + AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs);
>
> // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4
> assumes
> // that "The compiler can only warn and ignore the option if not
> recognized".
> @@ -11193,15 +11221,14 @@ void NVPTX::Assembler::ConstructJob(Comp
> static_cast<const toolchains::CudaToolChain &>(getToolChain());
> assert(TC.getTriple().isNVPTX() && "Wrong platform");
>
> - std::vector<std::string> gpu_archs =
> - Args.getAllArgValues(options::OPT_march_EQ);
> - assert(gpu_archs.size() == 1 && "Exactly one GPU Arch required for
> ptxas.");
> - const std::string& gpu_arch = gpu_archs[0];
> + // Obtain architecture from the action.
> + CudaArch gpu_arch = StringToCudaArch(JA.getOffloadingArch());
> + assert(gpu_arch != CudaArch::UNKNOWN &&
> + "Device action expected to have an architecture.");
>
> // Check that our installation's ptxas supports gpu_arch.
> if (!Args.hasArg(options::OPT_no_cuda_version_check)) {
> - TC.cudaInstallation().CheckCudaVersionSupportsArch(
> - StringToCudaArch(gpu_arch));
> + TC.cudaInstallation().CheckCudaVersionSupportsArch(gpu_arch);
> }
>
> ArgStringList CmdArgs;
> @@ -11245,7 +11272,7 @@ void NVPTX::Assembler::ConstructJob(Comp
> }
>
> CmdArgs.push_back("--gpu-name");
> - CmdArgs.push_back(Args.MakeArgString(gpu_arch));
> + CmdArgs.push_back(Args.MakeArgString(CudaArchToString(gpu_arch)));
> CmdArgs.push_back("--output-file");
> CmdArgs.push_back(Args.MakeArgString(Output.getFilename()));
> for (const auto& II : Inputs)
> @@ -11277,13 +11304,20 @@ void NVPTX::Linker::ConstructJob(Compila
> CmdArgs.push_back(Args.MakeArgString(Output.getFilename()));
>
> for (const auto& II : Inputs) {
> - auto* A = cast<const CudaDeviceAction>(II.getAction());
> + auto *A = II.getAction();
> + assert(A->getInputs().size() == 1 &&
> + "Device offload action is expected to have a single input");
> + const char *gpu_arch_str = A->getOffloadingArch();
> + assert(gpu_arch_str &&
> + "Device action expected to have associated a GPU
> architecture!");
> + CudaArch gpu_arch = StringToCudaArch(gpu_arch_str);
> +
> // We need to pass an Arch of the form "sm_XX" for cubin files and
> // "compute_XX" for ptx.
> const char *Arch =
> (II.getType() == types::TY_PP_Asm)
> - ?
> CudaVirtualArchToString(VirtualArchForCudaArch(A->getGpuArch()))
> - : CudaArchToString(A->getGpuArch());
> + ? CudaVirtualArchToString(VirtualArchForCudaArch(gpu_arch))
> + : gpu_arch_str;
> CmdArgs.push_back(Args.MakeArgString(llvm::Twine("--image=profile=") +
> Arch + ",file=" +
> II.getFilename()));
> }
>
> Modified: cfe/trunk/lib/Driver/Tools.h
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.h?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Driver/Tools.h (original)
> +++ cfe/trunk/lib/Driver/Tools.h Fri Jul 15 18:13:27 2016
> @@ -57,8 +57,7 @@ private:
> const Driver &D, const llvm::opt::ArgList
> &Args,
> llvm::opt::ArgStringList &CmdArgs,
> const InputInfo &Output,
> - const InputInfoList &Inputs,
> - const ToolChain *AuxToolChain) const;
> + const InputInfoList &Inputs) const;
>
> void AddAArch64TargetArgs(const llvm::opt::ArgList &Args,
> llvm::opt::ArgStringList &CmdArgs) const;
>
> Modified: cfe/trunk/lib/Frontend/CreateInvocationFromCommandLine.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CreateInvocationFromCommandLine.cpp?rev=275645&r1=275644&r2=275645&view=diff
>
> ==============================================================================
> --- cfe/trunk/lib/Frontend/CreateInvocationFromCommandLine.cpp (original)
> +++ cfe/trunk/lib/Frontend/CreateInvocationFromCommandLine.cpp Fri Jul 15
> 18:13:27 2016
> @@ -60,25 +60,25 @@ clang::createInvocationFromCommandLine(A
> }
>
> // We expect to get back exactly one command job, if we didn't something
> - // failed. CUDA compilation is an exception as it creates multiple
> jobs. If
> - // that's the case, we proceed with the first job. If caller needs
> particular
> - // CUDA job, it should be controlled via --cuda-{host|device}-only
> option
> - // passed to the driver.
> + // failed. Offload compilation is an exception as it creates multiple
> jobs. If
> + // that's the case, we proceed with the first job. If caller needs a
> + // particular job, it should be controlled via options (e.g.
> + // --cuda-{host|device}-only for CUDA) passed to the driver.
> const driver::JobList &Jobs = C->getJobs();
> - bool CudaCompilation = false;
> + bool OffloadCompilation = false;
> if (Jobs.size() > 1) {
> for (auto &A : C->getActions()){
> // On MacOSX real actions may end up being wrapped in BindArchAction
> if (isa<driver::BindArchAction>(A))
> A = *A->input_begin();
> - if (isa<driver::CudaDeviceAction>(A)) {
> - CudaCompilation = true;
> + if (isa<driver::OffloadAction>(A)) {
> + OffloadCompilation = true;
> break;
> }
> }
> }
> if (Jobs.size() == 0 || !isa<driver::Command>(*Jobs.begin()) ||
> - (Jobs.size() > 1 && !CudaCompilation)) {
> + (Jobs.size() > 1 && !OffloadCompilation)) {
> SmallString<256> Msg;
> llvm::raw_svector_ostream OS(Msg);
> Jobs.Print(OS, "; ", true);
>
> Added: cfe/trunk/test/Driver/cuda_phases.cu
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/cuda_phases.cu?rev=275645&view=auto
>
> ==============================================================================
> --- cfe/trunk/test/Driver/cuda_phases.cu (added)
> +++ cfe/trunk/test/Driver/cuda_phases.cu Fri Jul 15 18:13:27 2016
> @@ -0,0 +1,206 @@
> +// Tests the phases generated for a CUDA offloading target for different
> +// combinations of:
> +// - Number of gpu architectures;
> +// - Host/device-only compilation;
> +// - User-requested final phase - binary or assembly.
> +
> +// REQUIRES: clang-driver
> +// REQUIRES: powerpc-registered-target
> +// REQUIRES: nvptx-registered-target
> +
> +//
> +// Test single gpu architecture with complete compilation.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 %s 2>&1 \
> +// RUN: | FileCheck -check-prefix=BIN %s
> +// BIN: 0: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// BIN: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> +// BIN: 2: compiler, {1}, ir, (host-cuda)
> +// BIN: 3: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// BIN: 4: preprocessor, {3}, cuda-cpp-output, (device-cuda, sm_30)
> +// BIN: 5: compiler, {4}, ir, (device-cuda, sm_30)
> +// BIN: 6: backend, {5}, assembler, (device-cuda, sm_30)
> +// BIN: 7: assembler, {6}, object, (device-cuda, sm_30)
> +// BIN: 8: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {7}, object
> +// BIN: 9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {6},
> assembler
> +// BIN: 10: linker, {8, 9}, cuda-fatbin, (device-cuda)
> +// BIN: 11: offload, "host-cuda (powerpc64le-ibm-linux-gnu)" {2},
> "device-cuda (nvptx64-nvidia-cuda)" {10}, ir
> +// BIN: 12: backend, {11}, assembler, (host-cuda)
> +// BIN: 13: assembler, {12}, object, (host-cuda)
> +// BIN: 14: linker, {13}, image, (host-cuda)
> +
> +//
> +// Test single gpu architecture up to the assemble phase.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 %s -S 2>&1 \
> +// RUN: | FileCheck -check-prefix=ASM %s
> +// ASM: 0: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// ASM: 1: preprocessor, {0}, cuda-cpp-output, (device-cuda, sm_30)
> +// ASM: 2: compiler, {1}, ir, (device-cuda, sm_30)
> +// ASM: 3: backend, {2}, assembler, (device-cuda, sm_30)
> +// ASM: 4: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {3},
> assembler
> +// ASM: 5: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// ASM: 6: preprocessor, {5}, cuda-cpp-output, (host-cuda)
> +// ASM: 7: compiler, {6}, ir, (host-cuda)
> +// ASM: 8: backend, {7}, assembler, (host-cuda)
> +
> +//
> +// Test two gpu architectures with complete compilation.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 --cuda-gpu-arch=sm_35 %s 2>&1 \
> +// RUN: | FileCheck -check-prefix=BIN2 %s
> +// BIN2: 0: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// BIN2: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> +// BIN2: 2: compiler, {1}, ir, (host-cuda)
> +// BIN2: 3: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// BIN2: 4: preprocessor, {3}, cuda-cpp-output, (device-cuda, sm_30)
> +// BIN2: 5: compiler, {4}, ir, (device-cuda, sm_30)
> +// BIN2: 6: backend, {5}, assembler, (device-cuda, sm_30)
> +// BIN2: 7: assembler, {6}, object, (device-cuda, sm_30)
> +// BIN2: 8: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {7}, object
> +// BIN2: 9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {6},
> assembler
> +// BIN2: 10: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_35)
> +// BIN2: 11: preprocessor, {10}, cuda-cpp-output, (device-cuda, sm_35)
> +// BIN2: 12: compiler, {11}, ir, (device-cuda, sm_35)
> +// BIN2: 13: backend, {12}, assembler, (device-cuda, sm_35)
> +// BIN2: 14: assembler, {13}, object, (device-cuda, sm_35)
> +// BIN2: 15: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {14},
> object
> +// BIN2: 16: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {13},
> assembler
> +// BIN2: 17: linker, {8, 9, 15, 16}, cuda-fatbin, (device-cuda)
> +// BIN2: 18: offload, "host-cuda (powerpc64le-ibm-linux-gnu)" {2},
> "device-cuda (nvptx64-nvidia-cuda)" {17}, ir
> +// BIN2: 19: backend, {18}, assembler, (host-cuda)
> +// BIN2: 20: assembler, {19}, object, (host-cuda)
> +// BIN2: 21: linker, {20}, image, (host-cuda)
> +
> +//
> +// Test two gpu architecturess up to the assemble phase.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 --cuda-gpu-arch=sm_35 %s -S 2>&1 \
> +// RUN: | FileCheck -check-prefix=ASM2 %s
> +// ASM2: 0: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// ASM2: 1: preprocessor, {0}, cuda-cpp-output, (device-cuda, sm_30)
> +// ASM2: 2: compiler, {1}, ir, (device-cuda, sm_30)
> +// ASM2: 3: backend, {2}, assembler, (device-cuda, sm_30)
> +// ASM2: 4: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {3},
> assembler
> +// ASM2: 5: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_35)
> +// ASM2: 6: preprocessor, {5}, cuda-cpp-output, (device-cuda, sm_35)
> +// ASM2: 7: compiler, {6}, ir, (device-cuda, sm_35)
> +// ASM2: 8: backend, {7}, assembler, (device-cuda, sm_35)
> +// ASM2: 9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {8},
> assembler
> +// ASM2: 10: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// ASM2: 11: preprocessor, {10}, cuda-cpp-output, (host-cuda)
> +// ASM2: 12: compiler, {11}, ir, (host-cuda)
> +// ASM2: 13: backend, {12}, assembler, (host-cuda)
> +
> +//
> +// Test single gpu architecture with complete compilation in host-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 %s --cuda-host-only 2>&1 \
> +// RUN: | FileCheck -check-prefix=HBIN %s
> +// HBIN: 0: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// HBIN: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> +// HBIN: 2: compiler, {1}, ir, (host-cuda)
> +// HBIN: 3: offload, "host-cuda (powerpc64le-ibm-linux-gnu)" {2}, ir
> +// HBIN: 4: backend, {3}, assembler, (host-cuda)
> +// HBIN: 5: assembler, {4}, object, (host-cuda)
> +// HBIN: 6: linker, {5}, image, (host-cuda)
> +
> +//
> +// Test single gpu architecture up to the assemble phase in host-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 %s --cuda-host-only -S 2>&1 \
> +// RUN: | FileCheck -check-prefix=HASM %s
> +// HASM: 0: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// HASM: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> +// HASM: 2: compiler, {1}, ir, (host-cuda)
> +// HASM: 3: offload, "host-cuda (powerpc64le-ibm-linux-gnu)" {2}, ir
> +// HASM: 4: backend, {3}, assembler, (host-cuda)
> +
> +//
> +// Test two gpu architectures with complete compilation in host-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 --cuda-gpu-arch=sm_35 %s --cuda-host-only 2>&1 \
> +// RUN: | FileCheck -check-prefix=HBIN2 %s
> +// HBIN2: 0: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// HBIN2: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> +// HBIN2: 2: compiler, {1}, ir, (host-cuda)
> +// HBIN2: 3: offload, "host-cuda (powerpc64le-ibm-linux-gnu)" {2}, ir
> +// HBIN2: 4: backend, {3}, assembler, (host-cuda)
> +// HBIN2: 5: assembler, {4}, object, (host-cuda)
> +// HBIN2: 6: linker, {5}, image, (host-cuda)
> +
> +//
> +// Test two gpu architectures up to the assemble phase in host-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 --cuda-gpu-arch=sm_35 %s --cuda-host-only -S 2>&1 \
> +// RUN: | FileCheck -check-prefix=HASM2 %s
> +// HASM2: 0: input, "{{.*}}cuda_phases.cu", cuda, (host-cuda)
> +// HASM2: 1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
> +// HASM2: 2: compiler, {1}, ir, (host-cuda)
> +// HASM2: 3: offload, "host-cuda (powerpc64le-ibm-linux-gnu)" {2}, ir
> +// HASM2: 4: backend, {3}, assembler, (host-cuda)
> +
> +//
> +// Test single gpu architecture with complete compilation in device-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 %s --cuda-device-only 2>&1 \
> +// RUN: | FileCheck -check-prefix=DBIN %s
> +// DBIN: 0: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// DBIN: 1: preprocessor, {0}, cuda-cpp-output, (device-cuda, sm_30)
> +// DBIN: 2: compiler, {1}, ir, (device-cuda, sm_30)
> +// DBIN: 3: backend, {2}, assembler, (device-cuda, sm_30)
> +// DBIN: 4: assembler, {3}, object, (device-cuda, sm_30)
> +// DBIN: 5: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {4}, object
> +
> +//
> +// Test single gpu architecture up to the assemble phase in device-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 %s --cuda-device-only -S 2>&1 \
> +// RUN: | FileCheck -check-prefix=DASM %s
> +// DASM: 0: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// DASM: 1: preprocessor, {0}, cuda-cpp-output, (device-cuda, sm_30)
> +// DASM: 2: compiler, {1}, ir, (device-cuda, sm_30)
> +// DASM: 3: backend, {2}, assembler, (device-cuda, sm_30)
> +// DASM: 4: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {3},
> assembler
> +
> +//
> +// Test two gpu architectures with complete compilation in device-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 --cuda-gpu-arch=sm_35 %s --cuda-device-only 2>&1 \
> +// RUN: | FileCheck -check-prefix=DBIN2 %s
> +// DBIN2: 0: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// DBIN2: 1: preprocessor, {0}, cuda-cpp-output, (device-cuda, sm_30)
> +// DBIN2: 2: compiler, {1}, ir, (device-cuda, sm_30)
> +// DBIN2: 3: backend, {2}, assembler, (device-cuda, sm_30)
> +// DBIN2: 4: assembler, {3}, object, (device-cuda, sm_30)
> +// DBIN2: 5: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {4},
> object
> +// DBIN2: 6: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_35)
> +// DBIN2: 7: preprocessor, {6}, cuda-cpp-output, (device-cuda, sm_35)
> +// DBIN2: 8: compiler, {7}, ir, (device-cuda, sm_35)
> +// DBIN2: 9: backend, {8}, assembler, (device-cuda, sm_35)
> +// DBIN2: 10: assembler, {9}, object, (device-cuda, sm_35)
> +// DBIN2: 11: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {10},
> object
> +
> +//
> +// Test two gpu architectures up to the assemble phase in device-only
> +// compilation mode.
> +//
> +// RUN: %clang -target powerpc64le-ibm-linux-gnu -ccc-print-phases
> --cuda-gpu-arch=sm_30 --cuda-gpu-arch=sm_35 %s --cuda-device-only -S 2>&1 \
> +// RUN: | FileCheck -check-prefix=DASM2 %s
> +// DASM2: 0: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_30)
> +// DASM2: 1: preprocessor, {0}, cuda-cpp-output, (device-cuda, sm_30)
> +// DASM2: 2: compiler, {1}, ir, (device-cuda, sm_30)
> +// DASM2: 3: backend, {2}, assembler, (device-cuda, sm_30)
> +// DASM2: 4: offload, "device-cuda (nvptx64-nvidia-cuda:sm_30)" {3},
> assembler
> +// DASM2: 5: input, "{{.*}}cuda_phases.cu", cuda, (device-cuda, sm_35)
> +// DASM2: 6: preprocessor, {5}, cuda-cpp-output, (device-cuda, sm_35)
> +// DASM2: 7: compiler, {6}, ir, (device-cuda, sm_35)
> +// DASM2: 8: backend, {7}, assembler, (device-cuda, sm_35)
> +// DASM2: 9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {8},
> assembler
>
>
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